CN108375558A - 用于校准生物通量的方法和装置 - Google Patents
用于校准生物通量的方法和装置 Download PDFInfo
- Publication number
- CN108375558A CN108375558A CN201810087909.3A CN201810087909A CN108375558A CN 108375558 A CN108375558 A CN 108375558A CN 201810087909 A CN201810087909 A CN 201810087909A CN 108375558 A CN108375558 A CN 108375558A
- Authority
- CN
- China
- Prior art keywords
- hole
- frame
- flux
- chamber
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000004907 flux Effects 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000012528 membrane Substances 0.000 claims abstract description 28
- 239000012491 analyte Substances 0.000 claims description 14
- 238000012360 testing method Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 239000012085 test solution Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 37
- 210000004027 cell Anatomy 0.000 description 28
- 238000012937 correction Methods 0.000 description 21
- 238000005259 measurement Methods 0.000 description 17
- 239000007853 buffer solution Substances 0.000 description 16
- 239000000758 substrate Substances 0.000 description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 11
- 238000009826 distribution Methods 0.000 description 10
- 230000003287 optical effect Effects 0.000 description 10
- 239000001569 carbon dioxide Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- 150000002500 ions Chemical class 0.000 description 9
- 230000008859 change Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 230000001419 dependent effect Effects 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 239000002609 medium Substances 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 241001559542 Hippocampus hippocampus Species 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- 108010015776 Glucose oxidase Proteins 0.000 description 2
- 239000004366 Glucose oxidase Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000005482 chemotactic factor Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- LOKCTEFSRHRXRJ-UHFFFAOYSA-I dipotassium trisodium dihydrogen phosphate hydrogen phosphate dichloride Chemical compound P(=O)(O)(O)[O-].[K+].P(=O)(O)([O-])[O-].[Na+].[Na+].[Cl-].[K+].[Cl-].[Na+] LOKCTEFSRHRXRJ-UHFFFAOYSA-I 0.000 description 2
- 210000002950 fibroblast Anatomy 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 229940116332 glucose oxidase Drugs 0.000 description 2
- 235000019420 glucose oxidase Nutrition 0.000 description 2
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 2
- 238000011081 inoculation Methods 0.000 description 2
- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 2
- 230000002503 metabolic effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000002953 phosphate buffered saline Substances 0.000 description 2
- 229920000306 polymethylpentene Polymers 0.000 description 2
- 239000011116 polymethylpentene Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- BWLBGMIXKSTLSX-UHFFFAOYSA-N 2-hydroxyisobutyric acid Chemical compound CC(C)(O)C(O)=O BWLBGMIXKSTLSX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 229920002527 Glycogen Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 102000004877 Insulin Human genes 0.000 description 1
- 108090001061 Insulin Proteins 0.000 description 1
- ZDXPYRJPNDTMRX-VKHMYHEASA-N L-glutamine Chemical compound OC(=O)[C@@H](N)CCC(N)=O ZDXPYRJPNDTMRX-VKHMYHEASA-N 0.000 description 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012867 bioactive agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013553 cell monolayer Substances 0.000 description 1
- 230000019522 cellular metabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 229940088598 enzyme Drugs 0.000 description 1
- 230000006539 extracellular acidification Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- ZDXPYRJPNDTMRX-UHFFFAOYSA-N glutamine Natural products OC(=O)C(N)CCC(N)=O ZDXPYRJPNDTMRX-UHFFFAOYSA-N 0.000 description 1
- 229940096919 glycogen Drugs 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229940125396 insulin Drugs 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 210000002027 skeletal muscle Anatomy 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
- B01L3/5085—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above for multiple samples, e.g. microtitration plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/08—Flat membrane modules
- B01D63/088—Microfluidic devices comprising semi-permeable flat membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/502—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures
- B01L3/5025—Containers for the purpose of retaining a material to be analysed, e.g. test tubes with fluid transport, e.g. in multi-compartment structures for parallel transport of multiple samples
- B01L3/50255—Multi-well filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/52—Supports specially adapted for flat sample carriers, e.g. for plates, slides, chips
- B01L9/523—Supports specially adapted for flat sample carriers, e.g. for plates, slides, chips for multisample carriers, e.g. used for microtitration plates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6486—Measuring fluorescence of biological material, e.g. DNA, RNA, cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/4833—Physical analysis of biological material of solid biological material, e.g. tissue samples, cell cultures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
- G01N33/4977—Metabolic gas from microbes, cell cultures or plant tissues
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/60—Specific sensors or sensor arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/06—Fluid handling related problems
- B01L2200/0694—Creating chemical gradients in a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/14—Process control and prevention of errors
- B01L2200/143—Quality control, feedback systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/14—Process control and prevention of errors
- B01L2200/148—Specific details about calibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0609—Holders integrated in container to position an object
- B01L2300/0618—Holders integrated in container to position an object for removable separation walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
- B01L2300/0663—Whole sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0681—Filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0809—Geometry, shape and general structure rectangular shaped
- B01L2300/0829—Multi-well plates; Microtitration plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0848—Specific forms of parts of containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0848—Specific forms of parts of containers
- B01L2300/0851—Bottom walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/16—Surface properties and coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2400/00—Moving or stopping fluids
- B01L2400/04—Moving fluids with specific forces or mechanical means
- B01L2400/0475—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure
- B01L2400/0478—Moving fluids with specific forces or mechanical means specific mechanical means and fluid pressure pistons
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N2021/0342—Solid sample being immersed, e.g. equiindex fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N2021/6432—Quenching
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/127—Calibration; base line adjustment; drift compensation
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Immunology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hematology (AREA)
- Pathology (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Clinical Laboratory Science (AREA)
- Biophysics (AREA)
- Urology & Nephrology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Dispersion Chemistry (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
一种用于校准通量分析仪的装置,包括第一框架、第二框架、以及渗透膜。所述第一框架与所述第二框架相互连接或一体形成。提供了一种用于校准通量分析仪的方法,所述方法使用人工标准品而不是生物标准品。
Description
相关申请的交叉引用
无
发明领域
本发明涉及用于改进通量分析仪的校准的方法和装置,如测量生物通量(biological flux)的仪器。
背景
活细胞通常消耗其周围环境中的氧气(O2)并释放代谢副产物,如二氧化碳(CO2)、乳酸盐和各种其他代谢副产物。通量分析仪使得人们可以测量耗氧率(OCR)、细胞外酸化率(ECAR)、CO2产生率(CPR)和/或其他生物通量参数。这样的测量可以提供关于由这些活细胞进行的代谢过程的有价值的信息。
一种已知的测量活细胞的OCR和ECAR的方法是:使用一组荧光传感器测量由孔板中的这些活细胞所产生的O2和H+的通量。使用荧光传感器检测O2和H+通量的分析仪的一个例子是Seahorse通量分析仪,其通常在美国专利No.7,276,351和8,202,702中有描述。荧光传感器测量随时间变化的荧光信号强度。对于含有活细胞的样品,这些随时间变化的信号将与由细胞代谢所消耗或产生的O2分子和H+离子的产生或消耗率成比例。该数据用于计算由活细胞消耗和产生的O2分子和H+离子的通量。
与通量分析仪和通量测量相关的问题包括缺乏标准化和没有精确的校准参比可用。由于测量的是随时间变化而不是在稳态条件下的通量,不同分析物化学扩散或渗透到传感器和周围介质中的速率可能不同,从而产生复杂和动态的测量环境。目前,为了解决这些问题,通量测量***一般采用复杂的算法来补偿与每种分析物相关的不同速率常数。这些速率常数是根据生物参比凭经验推导的。***性能的最终验证通常使用含有已知含量的特定类型的细胞的生物标准品完成;例如,一种已得到充分表征的永生化啮齿动物骨骼肌成纤维细胞系(C2C12)常被用作标准品。使用前将这些细胞系在2级生物实验室中维持培养。在准备测定时,将细胞用胰蛋白酶消化,计数并接种到孔板中。控制接种量,使得细胞群在接种后24小时达到可测量的汇合度以备在仪器中使用。由于细胞在接种后继续生长/增殖,所以测定的时间对于获得可重现的结果而言是至关重要的。另外,细胞系固有地具有易变性,并且容易由于传代、基因型、培养条件等发生变化。由于这些变化因素,典型的孔间、测定间重现性常常超过20%cv。生物标准品的变异性降低了它们用作验证通量测量***性能的适合标准品的能力。
在孔板内产生通量的其他方法包括使用诸如葡萄糖氧化酶(GOx)的酶/催化剂、硫酸钠或氧化还原反应。这些方法以前已经被使用过,但也受到变异性和复杂性的影响。例如,典型的酶促反应依赖两种或更多种化合物反应产生期望的信号。两种化合物的反应是浓度依赖性的,因而随着催化剂作为反应的一部分被消耗,通量是变化的(非线性的)。另外,这些方法的速率常数难以调准,当期望一种以上的通量时,这些方法会变得复杂。如果要用这样的方法来复制生物活性,需要使反应组分附着在平板的底部,以可控的速率线性地分解代谢。这些要求让测定变得困难和复杂。
总之,对于更好的标准,比如不依赖于用于校准通量分析仪性能的细胞的设备存在着需要。
附图简述
图1A是本公开的校准装置的一个实施方案的横截面图。
图1B是图1A的校准装置的孔的放大横截面图。
图2是校准装置的孔的放大的横截面图,该孔正在接纳一个柱塞以测量两种分析物的通量率。
实施方案的详述
如本文中使用的术语“通量”(flux)是指某种参数作为时间函数的变化。由于参数所代表的反应物的消耗或反应,该变化是可以预期的。
现在参考图1A和1B,本公开的通量块(flux block)统一用数字100指示。通量块100包括:(1)第一框架102;(2)第二框架104;和(3)选择性渗透膜106。在这个实施方案中,通量块100的第一框架102与通量块100的第二框架104相互连接或一体形成。例如,通量块100可以由适当连接的两个或更多个单独形成的部分(例如两半部分)形成。所述框架可以具有诸如在边缘处卡扣在一起的永久地或可移除地互锁的物理配合表面。或者,所述框架可以通过粘合剂或通过焊接在一起而彼此连接。
更具体地说,第一框架102包括多个壁,包括:(1)第一壁108;(2)第二壁110;(3)第三壁112;和(4)第四壁(在横截面图中未示出)。第一框架102的壁包括内表面和外表面。在某些实施方案中,第一框架102限定了一多孔微孔板或孔板。第一框架102的多个壁部分地围绕多个孔114。在某些实施方案中,第一框架102的多个孔114被布置成四个不同的列和六个不同的行。因而,本实施方案中的第一框架102包括二十四个孔。多个孔114可以是圆锥形的或部分圆锥形的。
在某些实施方案中,第一框架102的多个孔114可以被布置成不同数量的列、不同数量的行或其组合。例如,本公开的通量块100的另一个实施方案可以包括具有多个孔114的孔板,所述孔被布置成八个不同的列和十二个不同的行。因而,孔板的这个可选实施方案可以包括九十六个孔。通量块的又另一个实施方案包括单排孔,例如单排8个、12个、16个或24个孔。通量块的又另一个实施方案包括16个不同的列和24个不同的行。因此,孔板的这个可选实施方案可以包括384个孔。
图1B展示了通量块100的第一框架102的单个孔114以及其与膜106和第二框架104的关系的更接近的视图。该孔114的壁116限定了孔空隙118,其配置为容纳一定体积的适当液体样品。孔114的壁116包括内表面和外表面。如下面进一步描述的,孔114被配置为接纳柱塞或其他传感器。
本公开的通量块100可以包括填充物150。应该理解的是,填充物150可以是任选的。填充物150可以由与第一框架102和/或第二框架104相同的材料制成。填充物150也可以由其他适合的材料制成。填充物150不应干扰通量块100的操作。
孔114包括孔基底120。孔114的孔基底120包括第一表面121和第二表面122。第二表面122接合第一隔离件124。孔基底120和第一隔离件124各自具有开口,并且它们一起限定孔开口126。孔开口126允许CO2、O2和/或其他气体或液体分子移入和/或移出孔114的孔空隙118。在某些实施方案中,液体和/或固体分子可以移动穿过孔口126,以进一步移入和/或移出孔114的孔空隙118。
在某些实施方案中,孔基底120的第一表面121具有不平坦(uneven)的表面,其外周边可以比其内周边稍微凸起。在某些实施方案中,传感器挡块123从孔114的孔基底120的第一表面121延伸。传感器挡块123被配置为当柱塞被推入(second)孔114的孔空隙118中时接合柱塞。替代地或另外地,第一表面121的凸起部分可以接合传感器或柱塞,以防止其接触更低的部分。传感器/柱塞的用途的更多细节在后面讨论。在某些实施方案中,本公开的通量块100可以包括一个或多个传感器挡块123,它们与孔114的孔基底120的第一表面121连接并从该表面延伸。在某些实施方案中,一个或多个传感器挡块123可以由孔114的孔壁116的内表面限定。一个或多个传感器挡块123可以成夹角(angled)或倾斜(sloped)。本公开的通量块100的某些实施方案可以包括呈阶梯状而非倾斜或成夹角的一个或多个传感器挡块123。因此,一个或多个传感器挡块123的顶部表面可以平行于孔114的孔基底120的顶部表面121。
每个孔可以具有顶部部分和底部部分,顶部部分带有面积为A1的开口,底部部分可以是圆柱形(cylindrical)或方形,面积为A2,并且该孔可以由锥形侧壁限定。A2可以显著小于A1。可以提供用作布置在阻挡件上的传感器的前挡块的底座表面。如美国专利No.7,276,351中所讨论的,这种底座表面可帮助产生局部化的体积减小的介质,通过提述将该专利并入本文。在一个实施方案中,所述座位表面可以由孔的底部表面上的多个凸起圆点(例如三个圆点)限定。孔的面积和深度可以为任何尺寸,并且可以优选地选自:面积A1为40至60mm2或为50mm2,面积A2为9至15mm2或为11.4mm2;孔的深度可以在1至16mm的范围或更深,优选约15mm;具有这些尺寸的实施方案包括:包括单列或单排孔的板,以及包括24个或96个孔的板。在另一个实施方案中,其中板包括384个孔,并且孔面积A1和A2以及深度与以上相同或者与上述的数量成比例。优选地,这些孔以相等的间隔彼此隔开。微孔板中的每个孔可以具有基本相同的尺寸,也可以具有不同的尺寸。
第二框架104包括多个壁,包括:(1)第一壁128;(2)第二壁110(不可见);(3)第三壁132;和(4)第四壁(未示出);(5)第五壁136;和(6)第六壁138。在该实施方案中,第一壁128限定了被配置为接纳一个管(未示出)的入口/出口端口140。应该理解的是,本公开的通量块100的某些实施方案可以包括限定入口/出口端口140的第二框架104的其他适合的壁。第二框架104的壁包括内表面和外表面。可以移除第六壁138来清洁通量块100。出于适当目的,例如清理或修理,可从第二框架移除第六壁138。
在某些实施方案中,第二框架104的壁限定了腔室139,该腔室被配置为容纳一定体积的适合物质,比如CO2、O2或其组合。应该理解的是,腔室139可以容纳一定体积的其他物质,并且可以令该腔室适合容纳这种物质,例如通过在其表面上配备涂层。应该进一步理解的是,本公开的通量块100的某些实施方案可以包括第二框架104的限定腔室139的壁,所述腔室被配置为容纳一定体积的适合的液体样品、其他适合的气体样品、或其组合。腔室可以被分成多个子腔室,并且框架的不同子腔室可以有不同的入口-出口部件。
顶壁136的第一表面142接合第二隔离件144。顶壁136和第二隔离件144(当存在时)限定与孔开口126对齐的腔室开口146。腔室开口146和孔开口126充分对齐或同心以允许CO2、O2和/或其他分子移入第二框架104的腔室139和/或从其移出并进入孔空隙118。
选择性渗透膜106被配置为允许一种或多种物质渗透穿过渗透膜106,其中这些物质构成或造成被通量分析仪所测量的通量。例如,所述膜可允许CO2、O2或两者从膜的一侧通过到达另一侧。所述选择性渗透膜还充当对水、其他溶剂和其他分子中的一者或多者的屏障。通常,所述渗透膜防止孔中的液体大量移动到所述腔室中。如图1B中所展示的,选择性渗透膜106被保持在第一隔离件124和第二隔离件144之间。第一隔离件124和第二隔离件144被配置为使得当渗透膜被定位在孔114的孔基底120的第二表面122与第二框架104的第五壁136的第一表面142之间时,一般不移动。渗透膜106充当孔114的孔空隙118与第二框架104的腔室139之间的边界。
在通量块100的某些实施方案中,第一隔离件124和第二隔离件144被配置为使得当定位在第一框架102和第二框架104之间时,渗透膜106与第二框架104的顶壁136的第一表面142和孔114的孔基底120的第二表面122的距离是相等的。在本公开的通量块100的某些实施方案中,第一隔离件124和第二隔离件144可以被配置为使得当定位在第一框架102和第二框架104之间时,渗透膜106被定位在从第二框架104的顶壁136的第一表面142到孔114的孔基底120的第二表面122的其他适当的距离处。隔离件和框架可以具有对齐标记以确保正确对齐。此外,渗透膜106是孔114的孔空隙118与第二框架104的腔室139之间的边界。
在某些实施方案中,本公开的通量块100不包括第一隔离件124和第二隔离件144。在这样的实施方案中,选择性渗透膜106接合第二框架104的顶壁136的第一表面142和孔114的孔基底120的第二表面122。在某些实施方案中,所述膜延伸穿过(extends across)第二框架104的最接近第一框架102的面。在这样的实施方案中,膜106是孔114的孔空隙118与第二框架104的腔室139之间的边界。应该进一步理解的是,膜106可以与第一框架102和第二框架104中的任一者或两者成为一体。膜可以是在第一框架和/或第二框架的基本上整个表面上延伸的单一片层(sheet),或者可以是覆盖孔开口的多个离散的小片(patches)。
本公开的通量块100可以由模制塑料比如聚苯乙烯、聚丙烯、聚碳酸酯或其他适合的材料形成。孔的底部可以是不透明的或反射性的,使得孔中的传感器收集由孔中的内容物发射或反射的光,或者孔的底部可以是透明的以允许光穿过那些底部。在某些实施方案中,孔的侧面是不透明的,以减少从一个孔到另一个孔的光学串扰或光污染。在一些实施方案中,例如,用于发光测量,孔可以是白色或反射性的。
在某些实施方案中,渗透膜106是聚甲基戊烯薄膜,例如TPX薄膜。或者,渗透膜106可以是聚苯乙烯。应该进一步理解的是,某些实施方案可以包括由其他适合的材料制成的选择性渗透膜。在一些实施方案中,所述膜可从装置上移除,以便可以更换膜,从而复原(rejuvenate)该校准装置。
本公开的通量块100被设计成用于校准运行着校准应用程序的基于孔的分析***,比如光学***或通量分析仪。在一些实施方案中,使用本公开的通量块来校准通量分析仪的方法包括:用已知的CO2浓度(如100%)填充第二框架的腔室;用具有已知CO2浓度(如0%)的缓冲溶液填充第一框架的孔的孔隙;并且测量分析物(诸如CO2或O2或氢离子)浓度在一段时间内的变化。在一些实施方案中,所述方法进一步包括评估通量分析仪是通过还是失败。在一些实施方案中,所述方法还包括将测量结果与一项或多项标准进行比较,并确定测量结果是否符合标准;在这些实施方案中,所述标准可以是单个值或一系列的值。在一些实施方案中,该方法还包括评估将校正因子应用于分析仪或用于进一步校准。
更具体地说,该方法可以包括将管(未示出)与第二框架104的第一壁128的入口/出口端口140连接。CO2分子穿过所述管并进入第二框架104的腔室139,从而用100%CO2清洗第二框架104的腔室139。换言之,腔室139中的CO2的分压是100%。第二框架104的腔室139中的O2的分压为0%。在用100%CO2净化腔室139时,将管道装置从入口/出口端口140移除。密封件(未示出)通过接合第二框架104的第一壁128的外表面而覆盖入口/出口端口140。密封件允许第二框架104的腔室139容纳CO2分子,使得没有CO2离开腔室139,并且没有其他气体或液体样品进入腔室139。
该方法进一步包括用适当体积的测试溶液(比如具有7.4的pH的缓冲溶液)填充第一框架102的多个孔114的孔空隙118。孔空隙118可以容纳一定体积的其他适合的液体样品和/或一定体积的活细胞周围的介质。所述方法进一步包括测量一个或多个参数如CO2的变化或通量,同时允许缓冲溶液在环境条件下平衡。环境条件通常包括气体分压约为21%O2和0.03%CO2的条件。通过在环境条件下平衡,缓冲溶液达到平衡使得在第二框架104的腔室139中包括小于的CO2的100%分压的CO2分压。CO2分压的这种差异建立了跨渗透膜106的CO2浓度梯度。因此,只要第二框架104的腔室139中的CO2浓度高于包含缓冲溶液的孔114的孔空隙118中的CO2浓度,CO2将继续移动穿过所述膜。此外,当缓冲溶液在环境条件下达到平衡时,形成O2的浓度梯度。因此,包含缓冲溶液的孔114的孔空隙118中的O2浓度高于包含O%的O2分压的第二框架104的腔室139中的O2浓度。
当如上所述的浓度梯度在第二框架104的腔室139与第一框架102的孔114的孔空隙118之间形成时,O2分子和CO2分子沿其浓度梯度向下移动。换言之,每个分子从较高浓度的区域移动到另一浓度。在这种情况下,CO2从第二框架104的腔室139移动到孔114的孔空隙118。更具体地说,CO2分子移动穿过腔室开口146。CO2分子进一步渗透穿过渗透膜106。CO2分子进一步穿过孔114的孔开口126,其中CO2分子进一步溶解在第一框架102的孔114的孔空隙118中的缓冲溶液中。O2分子从孔114的孔空隙118移动到第二框架104的腔室139。更具体地说,O2分子移动通过孔114的孔空隙118的孔口126。O2分子进一步渗透穿过渗透膜106。O2分子进一步穿过第二框架104的腔室139的腔室开口146并填充腔室139,从而增加第二框架104的腔室139中的O2分压。正如下面更详细解释的,可以以高置信度计算在平衡的整个时间段内孔中的O2分子和CO2分子的变化或通量。因此,可以在平衡的整个过程中测量O2分子和CO2分子的浓度,可以将测量值与计算值比较,并且可以确定分析仪的准确度。如果测量值与计算值不同,可以采取纠正措施。纠正措施可以是调整分析仪,对现有的测量值和/或未来的测量值应用校正因子,或清洁或更换传感器。这样,分析仪得以校准。
随着CO2分子溶解在缓冲溶液中,CO2分子经历如下反应:
CO2(g)+H20(l)H+(aq)+HCO3-(aq)
换言之,CO2分子与缓冲溶液中的水(H2O)分子反应形成氢离子或H+离子。H+离子的形成导致溶液的pH降低。
在某些实施方案中,测量O2分子和H+离子的浓度变化并进一步计算每种分析物的通量的方法包括将柱塞260送入第一框架202的孔214的孔空隙218中。柱塞260包括(例如容纳、保持或支撑)一个或多个传感器264。图2展示了该工艺和设备在第一框架202的第一孔214的一个孔空隙218中的一个实施方案。在这个实施方案中,渗透膜206接合第一隔离件224和第二隔离件244。
柱塞260从手动或自动致动器或其他支撑件延伸。柱塞260的一端布置有阻挡件262。一个或多个传感器264布置在柱塞260的阻挡件262的远端。传感器的一个例子是包埋在透氧物质如硅橡胶中的荧光指示剂,如氧淬灭的荧光团。荧光指示剂提供依赖于孔中组分的存在和/或浓度的荧光信号。可以使用其他类型的已知传感器,比如电化学传感器、ISFET传感器和安培传感器,例如克拉克电极。
在某些优选实施方案中,一个或多个光学传感器包括荧光传感器。荧光传感器被配置为检测与缓冲溶液中的O2分子和H+离子在一段时间内的浓度变化速率成比例的荧光信号强度。一个或多个传感器264经由光纤或导线270与***266电通信,***266包括运行校准程序的处理器。所述校准程序被编程为使用由一个或多个传感器264收集、测量或确定的数据(如测得的通量)来校准***266,所述传感器264与孔214中的孔空隙218中的缓冲溶液中的分析物处于感测通信中。
在一些实施方案中,在自动致动时,柱塞260下降到第一框架202的孔空隙218中。一个柱塞下降到一个给定的孔中,并且各柱塞可以精确地间隔开以便与标准孔板(例如标准的24孔板、96孔板或384孔板)中的孔的位置对准。柱塞260的阻挡件262接合传感器挡块223。柱塞260的阻挡件262与孔214的传感器挡块223的接合限定了具有减小的介质体积的微孔268。在该实施方案中,微孔268保持一减小体积的缓冲溶液,所述缓冲溶液进行上述化学反应或其他反应。在本公开的通量块100的一些实施方案中,微孔268被配置为容纳小于10微升体积的缓冲溶液。该体积可以由孔的底部面积(例如11.4mm2)和止挡件的高度(例如0.2mm)限定。在某些实施方案中,微孔268可以被配置为保持大于10微升的缓冲溶液或其他适合的液体样品的体积。具有该容积的微孔268允许一个或多个传感器264在O2分子从微孔268移动到第二框架228的腔室239中、并且CO2分子从第二框架228的腔室239移动到微孔268中,随后经历上述化学反应的一段时间内测量O2分子和H+离子浓度的变化。具有该容积的微孔268进一步提高了测量灵敏度。应该理解的是,微孔268可以通过将第一框架202朝向静止柱塞移动加以限定,使得静止柱塞的阻挡件或其他支撑件或传感器的布置接合第一框架202的孔214的传感器挡块。传感器挡块是任选的,并且可以采用任何传感器被定位在样品上方的期望高度处的布置。
在限定微孔268时,一个或多个光学传感器264检测荧光信号的变化,所述荧光信号与孔214的微孔268中的O2分子和H+离子的浓度在一段时间内变化的速率成比例。一个或多个传感器264经由导线或光纤270将反映这些浓度变化的数据发送到分析仪***266。运行校准应用程序的处理器接收这些数据并测量每种分析物的通量。所述处理器采用:(1)每种分析物的测得的通量率;和(2)编程到校准程序中的校正因子来进一步校准光学分析仪266。在美国专利No.7,276,351中提供了使用柱塞的进一步细节,通过提述将该专利并入本文。
在某些实施方案中,本公开的通量块100的孔214的直径,特别是在孔214底部的直径D2(如图2所示)略小于柱塞260的阻挡件262的直径D1(如图2所示),使得当阻挡件262接合孔214的止挡件223时,阻挡件262限定了微孔268的容积与孔214的孔空隙218的剩余容积之间的边界。
在某些实施方案中,本公开的通量块100可以被配置为在每种分析物移动通过渗透膜的一段时间内维持每种分析物的期望的通量率(Q)。更具体地说,可以调整下列等式中的变量,使得期望的每种分析物的通量率得以保持:(1)渗透膜的厚度(t);(2)透气膜的表面积(A);(3)气体和/或液体样品的跨越渗透膜的差异浓度(dP1);(4)第二框架的腔室中的气体样品的气体压力(dP2);和(5)渗透膜的渗透系数(K)。可以调整这些变量并将其用于下面的等式中以维持期望的移动穿过渗透膜的每种分析物的通量率。
在本公开的通量块100和校准方法的某些实施方案中,期望的O2分子通量率为大约100-150皮摩尔/分钟。可以选择膜参数(如厚度和制造膜的材料),使得膜在其预期的使用条件(其包括测试流体的压力(dP1)和以期望的通量率通过膜的物质如CO2的分压(dP2))下具有期望的通量率。dP1的单位是psi,dP2是百分比。对于聚甲基戊烯材料的膜,在预期用于通量块中的测试流体为100%CO2气体的情况下,厚度通常在50μm至150μm的范围内,并且面积通常在1mm2至5mm2的范围内。对于在相同条件下的聚苯乙烯膜,其厚度通常在5μm至15μm的范围内,面积通常在1mm2至5mm2的范围内。可以选择孔开口的面积,从而确定膜的面积。
本发明的通量块100的某些实施方案可以被配置成允许将碳源例如葡萄糖、氨基酸、脂肪和活性剂递送到第二框架104的腔室139、孔202的孔空隙118、孔202的子孔216或其组合中。应该进一步理解的是,某些实施方案可以被配置和/或用于控制生物反应器的环境条件,比如液体和/或气体样品的O2的分压、pH等。
本公开的通量块100的某些实施方案可以被配置为测量其他适合的分析物(比如溶解的气体(例如O2、CO2、NH3)、离子(例如H+、Na+、K+、Ca++)、蛋白质(例如细胞因子、胰岛素、趋化因子、激素、抗体)、底物(例如葡萄糖、脂肪酸、氨基酸、谷氨酰胺、糖原、丙酮酸盐)、盐和/或矿物质)的通量率。所述组分可以被至少一部分细胞从介质中提取。所述组分可以被至少一部分细胞分泌到培养基中。
应该进一步理解的是,本公开的通量块100的某些实施方案可以由两个或更多个(例如两个)分开的可拆卸部分形成或制成,所述可拆卸部分包括:(1)第一框架;和(2)第二框架。第一框架和第二框架分别包括第一和第二附接机构,其分别允许第一框架附接于(永久地或可移除地)第二框架,或者反之。
本发明还提供了包含密封在箔袋中的一个或多个通量块的套件。已经发现,如果密封在铝箔袋中,通量块可以保持长达7天。
实施例1
这个实施例说明了本公开的通量块如何可以用于确定通量分析仪的校正因子。在这个实施例中,评估了具有图1的总体布置的五个通量块,通过传感器在每个通量块中的每个孔中的重复测量来计算传感器校正因子。如上所述,将校正因子应用在校准中来校准通量分析仪。通过应用校正因子来校准通量分析仪,可改善从传感器收集的数据的变异系数。
五个通量块包括24个孔。每个通量块在四次试验中评估,总共20次试验。用100%CO2气体填充腔室,并且在孔中装入少量磷酸盐缓冲盐水。使用Seahorse XF24分析仪(更具体地说,使用该分析仪中的荧光传感器)测量每个通量块的每个孔中的ECAR和OCR数据。如下所述,利用所述数据进一步计算要应用于校准通量分析仪的每个传感器的校正因子。
与计算校正因子有关的数据列于表1至表6B中;这些数据一般性地代表了本公开的通量块的测试和使用。在这些表中,“无再装填”(no recharge)是指在测试与测试之间没有补充腔室中的气体的一系列测试,“再装填”是指在测试与测试之间补充腔室中的气体的一系列测试。如表1所示,第一通量块(标记为FB1)被测试了四次。在每次试验中,测量了二十四个孔中每一个孔中的ECAR和OCR数据。在每次试验中在评估其他四个通量块时收集相同的数据。
表1
表2
表3
表4
表5
表7A–原始数据
FB1-运行1 | FB1-运行2 | FB1-运行3 | FB1-运行4 | FB2-运行1 | ||
孔 | SCF | ECAR | ECAR | ECAR | ECAR | ECAR |
1 | 1.08137479 | 89.6119617 | 93.2799622 | 76.1785606 | 74.7705956 | 60.9401975 |
2 | 1.246549312 | 83.8809812 | 79.242285 | 64.2579312 | 70.0484392 | 63.2933664 |
3 | 1.181338446 | 84.1534425 | 75.6403122 | 59.9598305 | 65.8474472 | 65.0643076 |
4 | 1.237252005 | 70.3843788 | 79.6535144 | 63.0226751 | 66.8341828 | 60.9303178 |
5 | 1.069641504 | 70.0143804 | 76.579838 | 66.8113656 | 72.7658473 | 72.431357 |
6 | 1.00598515 | 78.9241038 | 80.5621052 | 74.5257068 | 73.0840322 | 83.4464115 |
7 | 0.815646582 | 96.6373607 | 107.739986 | 92.6249142 | 99.326922 | 96.0204549 |
8 | 0.98901642 | 84.0563585 | 81.4066769 | 82.7083316 | 86.0272529 | 84.465556 |
9 | 0.985784233 | 81.9462732 | 80.3239655 | 80.018464 | 89.4875251 | 81.4343198 |
10 | 0.976195694 | 80.483165 | 84.0574369 | 90.0210331 | 82.7399803 | 96.0240378 |
11 | 0.928513637 | 75.7725142 | 82.5136745 | 82.0218824 | 87.7643651 | 84.9727228 |
12 | 0.968955717 | 70.7506723 | 75.0075889 | 75.0492842 | 75.3755429 | 78.3421352 |
13 | 0.892619686 | 93.6566367 | 85.4294639 | 83.7319074 | 82.3164016 | 80.4743018 |
14 | 0.929182833 | 79.6736062 | 85.2551379 | 83.9493197 | 85.8965431 | 80.3708037 |
15 | 0.911026763 | 90.8479969 | 90.8641234 | 87.8687104 | 90.5704381 | 88.3244069 |
16 | 0.920535631 | 91.2749705 | 91.786507 | 86.1715858 | 89.2136009 | 91.3666749 |
17 | 1.011999196 | 78.3189936 | 81.5375405 | 77.176296 | 80.3430622 | 78.6484295 |
18 | 0.862335474 | 86.4374653 | 92.6708021 | 86.0528466 | 85.7863493 | 92.4808562 |
19 | 0.987827409 | 85.8536538 | 90.999879 | 80.0462754 | 81.0017595 | 73.2350313 |
20 | 1.025222423 | 79.3133607 | 82.4589641 | 76.379714 | 81.4589362 | 74.5092491 |
21 | 1.05186766 | 86.1692893 | 77.7860387 | 73.3345084 | 77.1843288 | 74.7094829 |
22 | 1.028118995 | 77.3115065 | 78.5655247 | 71.5917543 | 76.5309262 | 78.4002449 |
23 | 1.105020635 | 69.4050541 | 75.1118177 | 68.3691277 | 68.8348972 | 72.2803578 |
24 | 1.041572042 | 75.2434173 | 76.933904 | 74.370416 | 78.4870179 | 76.2710909 |
AVG | 81.671731 | 83.558627 | 77.343435 | 80.0706831 | 78.6848381 | |
SD | 7.63926803 | 7.7113534 | 8.72745167 | 8.36532409 | 10.1211856 | |
cv | 9% | 9% | 11% | 10% | 13% |
表7A–原始数据(续)
FB2-运行2 | FB2-运行3 | FB2-运行4 | FB3-运行1 | FB3-运行2 | ||
孔 | SCF | ECAR | ECAR | ECAR | ECAR | ECAR |
1 | 1.08137479 | 56.1588551 | 75.1327384 | 58.9416867 | 71.1566829 | 65.6770873 |
2 | 1.246549312 | 67.4488459 | 62.3056134 | 66.6732294 | 63.6031602 | 50.7183271 |
3 | 1.181338446 | 68.4291366 | 64.8574085 | 64.4358737 | 67.8719539 | 60.1897486 |
4 | 1.237252005 | 69.1377667 | 57.7935972 | 62.4399996 | 65.2058759 | 53.4047157 |
5 | 1.069641504 | 72.3842855 | 69.0613433 | 72.5578511 | 76.3309814 | 68.9273837 |
6 | 1.00598515 | 87.2129072 | 74.875157 | 76.7470049 | 75.6008541 | 60.7792193 |
7 | 0.815646582 | 92.0931333 | 90.8392956 | 95.20618 | 99.1387621 | 95.178036 |
8 | 0.98901642 | 87.5730133 | 80.2655954 | 68.1167392 | 67.1516932 | 65.5644437 |
9 | 0.985784233 | 91.9546811 | 81.8116704 | 85.0462703 | 64.8361016 | 62.5405687 |
10 | 0.976195694 | 97.4176257 | 91.7983697 | 88.4068855 | 68.5520821 | 67.2022214 |
11 | 0.928513637 | 93.9082228 | 84.0056715 | 88.3470159 | 76.836607 | 79.7035293 |
12 | 0.968955717 | 86.597794 | 68.3312319 | 73.2234336 | 83.997875 | 82.130023 |
13 | 0.892619686 | 89.7126493 | 76.6410512 | 83.1575563 | 84.8208929 | 90.4683111 |
14 | 0.929182833 | 88.3467996 | 75.5566302 | 80.7380947 | 73.8833611 | 74.5701783 |
15 | 0.911026763 | 94.4028144 | 85.3054246 | 88.5909089 | 72.8718058 | 74.7580481 |
16 | 0.920535631 | 95.0755612 | 90.3808473 | 91.3586156 | 76.0557461 | 78.2777678 |
17 | 1.011999196 | 83.2162726 | 75.1680815 | 77.8584215 | 66.630164 | 67.62361 |
18 | 0.862335474 | 91.2319292 | 89.4419615 | 93.16771 | 85.3966779 | 88.178782 |
19 | 0.987827409 | 78.9930539 | 71.7333066 | 76.405514 | 73.9801636 | 64.5725623 |
20 | 1.025222423 | 79.8600805 | 70.6861577 | 74.2407193 | 65.7041797 | 64.3729294 |
21 | 1.05186766 | 79.0960424 | 70.2139832 | 72.7722094 | 61.3507734 | 65.5850265 |
22 | 1.028118995 | 85.7199015 | 75.3111771 | 81.0573868 | 61.3435337 | 66.0635305 |
23 | 1.105020635 | 79.3086294 | 70.7077754 | 71.682521 | 62.3591741 | 65.5200248 |
24 | 1.041572042 | 81.2880311 | 77.3819987 | 72.8542223 | 66.9195309 | 67.6667386 |
AVG | 83.1903347 | 76.233587 | 77.6677521 | 72.149943 | 69.9863672 | |
SD | 10.4305738 | 9.14230864 | 10.0048931 | 9.18148363 | 11.0244694 | |
cv | 13% | 12% | 13% | 13% | 16% |
表7A–原始数据(续)
FB3-运行3 | FB3-运行4 | FB4-运行1 | FB4-运行2 | FB4-运行3 | |
孔 | ECAR | ECAR | ECAR | ECAR | ECAR |
1 | 73.5819468 | 102.555301 | 72.3554283 | 77.4656697 | 71.6975336 |
2 | 54.5400221 | 82.3817909 | 59.959784 | 58.53901 | 70.5365292 |
3 | 58.2609501 | 97.0081679 | 60.3590924 | 61.3997202 | 74.8820654 |
4 | 53.8193107 | 79.9792709 | 64.430667 | 56.9545998 | 70.3870113 |
5 | 64.7887792 | 111.438502 | 78.2202028 | 69.8755956 | 79.0004399 |
6 | 64.5369706 | 106.453367 | 81.1811988 | 73.5420132 | 79.4937284 |
7 | 84.8935328 | 142.592786 | 102.404989 | 106.400201 | 86.6505707 |
8 | 78.562686 | 105.539463 | 81.2048116 | 83.5546907 | 85.4924099 |
9 | 69.8505069 | 109.656435 | 89.3361486 | 86.6547873 | 85.1942636 |
10 | 68.6920947 | 111.385816 | 75.4889916 | 82.0385236 | 80.7402025 |
11 | 79.5522445 | 124.667116 | 82.5846554 | 83.0226854 | 86.3246186 |
12 | 77.9399721 | 121.248498 | 84.0723 | 88.4242454 | 76.2434272 |
13 | 75.1200352 | 133.889589 | 85.3050788 | 86.3041531 | 73.9102549 |
14 | 77.3311219 | 114.265533 | 83.0977412 | 85.3443203 | 83.6844502 |
15 | 76.7204194 | 114.571142 | 86.2439064 | 89.6915918 | 86.3239479 |
16 | 80.1857194 | 119.570899 | 79.4346809 | 82.5091355 | 78.6073881 |
17 | 71.2526522 | 108.140553 | 79.673299 | 84.3965913 | 79.2321067 |
18 | 79.8958466 | 137.389916 | 84.6661305 | 89.3219998 | 74.3810941 |
19 | 72.3839789 | 113.562541 | 67.2691703 | 71.5357769 | 63.674902 |
20 | 66.4169037 | 109.591394 | 77.168433 | 80.2854161 | 76.1385397 |
21 | 62.134004 | 101.057261 | 80.0349645 | 81.6168517 | 71.3437567 |
22 | 63.9522025 | 102.480455 | 83.0178199 | 85.0823194 | 79.5545094 |
23 | 64.8115167 | 98.1244171 | 73.7679412 | 78.0940309 | 73.218805 |
24 | 73.8784761 | 95.9313694 | 78.8974519 | 73.87523 | 68.5678444 |
AVG | 70.5459122 | 110.145066 | 78.757287 | 79.8303816 | 77.30335 |
SD | 8.44360642 | 15.1394126 | 9.34393492 | 10.9182734 | 6.31712316 |
cv | 12% | 14% | 12% | 14% | 8% |
表7A–原始数据(续)
FB4-运行4 | FB5-运行1 | FB5-运行2 | FB5-运行3 | FB5-运行4 | ||
孔 | ECAR | ECAR | ECAR | ECAR | ECAR | |
1 | 62.6733667 | 79.866209 | 80.9837313 | 74.1625121 | 70.74534245 | |
2 | 51.3756605 | 57.074072 | 66.7736016 | 65.5061887 | 52.61705134 | |
3 | 67.0835841 | 67.7018077 | 69.3153772 | 66.0261142 | 63.5414535 | |
4 | 61.7608113 | 67.4605446 | 71.0703069 | 66.3737943 | 59.43206043 | |
5 | 74.3404551 | 79.6305836 | 81.0576455 | 74.2463687 | 73.79386667 | |
6 | 76.6938975 | 96.3071195 | 102.479138 | 73.5827081 | 79.41524936 | |
7 | 98.3405728 | 102.221165 | 101.347971 | 88.8724915 | 94.15815128 | |
8 | 85.4184732 | 79.5579415 | 78.4666363 | 77.8841039 | 83.86793954 | |
9 | 82.438494 | 79.7317997 | 76.5911639 | 77.505448 | 75.86015561 | |
10 | 78.6794401 | 76.9710306 | 75.1209524 | 75.9298907 | 76.50149623 | |
11 | 84.330193 | 88.8413032 | 91.512032 | 86.1356642 | 90.07737707 | |
12 | 83.6347938 | 89.0131159 | 96.7849441 | 89.1415339 | 85.25849586 | |
13 | 87.1740917 | 109.522501 | 107.749657 | 89.0153038 | 104.177254 | |
14 | 85.471893 | 102.07173 | 104.57063 | 91.8996175 | 95.66855336 | |
15 | 87.4771206 | 93.4243242 | 95.7650707 | 85.4220734 | 86.11218074 | |
16 | 80.1033755 | 89.5696231 | 91.3921089 | 82.4366455 | 83.14111306 | |
17 | 78.8477774 | 80.8680884 | 85.6214254 | 78.6574234 | 76.72703379 | |
18 | 86.11092 | 111.995152 | 112.627204 | 91.5878963 | 107.0599494 | |
19 | 64.2319373 | 103.514431 | 105.071175 | 91.7549697 | 99.02295584 | |
20 | 78.515028 | 85.3738441 | 91.6260466 | 76.1109336 | 79.22011684 | |
21 | 75.0550934 | 83.6297192 | 89.7746031 | 71.3634808 | 75.46371056 | |
22 | 86.1638499 | 78.9725246 | 87.386753 | 70.7966719 | 75.70671598 | |
23 | 74.4262501 | 73.6899927 | 79.4117136 | 68.1261926 | 68.84546351 | |
24 | 73.379613 | 84.6384427 | 89.1927467 | 80.7728579 | 78.24509466 | 总体 |
AVG | 77.6552788 | 85.901961 | 88.8205264 | 78.8879535 | 80.61078255 | 80.45079 |
SD | 10.4249862 | 13.5760837 | 12.7920993 | 8.71123946 | 13.32294008 | 10.066901 |
cv | 13% | 16% | 14% | 11% | 17% | 12% |
表7B-使用孔校正因子的校正数据
孔 | FB1-运行1 | FB1-运行2 | FB1-运行3 | FB1-运行4 | FB2-运行1 |
1 | 96.9041163 | 100.8706 | 82.377575 | 80.8550371 | 65.8991933 |
2 | 104.561779 | 98.7794159 | 80.1006799 | 87.3188337 | 78.8983023 |
3 | 99.4136969 | 89.3568089 | 70.832853 | 77.7881209 | 76.862968 |
4 | 87.0832137 | 98.5514703 | 77.9749311 | 82.6907266 | 75.3861579 |
5 | 74.8902871 | 81.912973 | 71.4642096 | 77.8333703 | 77.4755856 |
6 | 79.3964763 | 81.0442814 | 74.9717543 | 73.521451 | 83.9458507 |
7 | 78.821933 | 87.8777515 | 75.5491947 | 81.0156645 | 78.3187559 |
8 | 83.1331188 | 80.5125402 | 81.7998981 | 85.0823657 | 83.5378219 |
9 | 80.7813441 | 79.1820988 | 78.8809402 | 88.2153914 | 80.2766685 |
10 | 78.5673191 | 82.056508 | 87.8781448 | 80.7704124 | 93.7382522 |
11 | 70.3558127 | 76.6150719 | 76.1584363 | 81.4904098 | 78.8983318 |
12 | 68.5542684 | 72.6790321 | 72.7194329 | 73.0355632 | 75.9100597 |
13 | 83.5997576 | 76.2560213 | 74.7407489 | 73.4772406 | 71.8329461 |
14 | 74.0313472 | 79.2176106 | 78.0042667 | 79.8135933 | 74.6791711 |
15 | 82.7649565 | 82.7796482 | 80.0507468 | 82.512093 | 80.4658985 |
16 | 84.0218626 | 84.4927502 | 79.3240151 | 82.1242984 | 84.1062797 |
17 | 79.2587585 | 82.5159254 | 78.1023495 | 81.3071143 | 79.5921474 |
18 | 74.5380926 | 79.9133201 | 74.2064222 | 73.9766121 | 79.7495229 |
19 | 84.8085924 | 89.8921747 | 79.0719048 | 80.0157582 | 72.3435713 |
20 | 81.3138358 | 84.5387789 | 78.3061954 | 83.5135279 | 76.3885529 |
21 | 90.6386887 | 81.8206185 | 77.1381977 | 81.1876993 | 78.5844889 |
22 | 79.4854284 | 80.7747083 | 73.6048425 | 78.6828989 | 80.604781 |
23 | 76.6940169 | 83.0001085 | 75.5492969 | 76.0639817 | 79.8712868 |
24 | 78.3714398 | 80.1322035 | 77.4621461 | 81.7498835 | 79.4418359 |
AVG | 82.166256 | 83.9488508 | 77.3445493 | 80.1684187 | 78.6170179 |
SD | 8.65394573 | 7.1109348 | 3.76007064 | 4.08350793 | 5.17517019 |
cv | 11% | 8% | 5% | 5% | 7% |
表7B-使用孔校正因子的校正数据(续)
孔 | FB2-运行2 | FB2-运行3 | FB2-运行4 | FB3-运行1 | FB3-运行2 |
1 | 60.7287702 | 81.2466491 | 63.7380541 | 76.947043 | 71.0215465 |
2 | 84.0783124 | 77.6670195 | 83.1114683 | 79.2844757 | 63.2228957 |
3 | 80.8379699 | 76.6185502 | 76.1205749 | 80.1797485 | 71.1044641 |
4 | 85.5408405 | 71.505244 | 77.2540147 | 80.6761007 | 66.0750915 |
5 | 77.425236 | 73.8708791 | 77.610889 | 81.6467857 | 73.7275904 |
6 | 87.7348895 | 75.323296 | 77.2063472 | 76.0533366 | 61.142992 |
7 | 75.1154494 | 74.092761 | 77.6545953 | 80.8621925 | 77.6316397 |
8 | 86.6111481 | 79.3839919 | 67.3685735 | 66.4141272 | 64.8443114 |
9 | 90.6474748 | 80.6486547 | 83.8372724 | 63.9144067 | 61.6515066 |
10 | 95.0986667 | 89.6131732 | 86.3024209 | 66.9202473 | 65.6025192 |
11 | 87.1950655 | 78.0004115 | 82.031409 | 71.3438374 | 74.0058138 |
12 | 83.9094276 | 66.2099378 | 70.9502646 | 81.3902211 | 79.5803553 |
13 | 80.0792769 | 68.4113111 | 74.2280718 | 75.7127988 | 80.7537955 |
14 | 82.0903296 | 70.2059237 | 75.0204516 | 68.6511509 | 69.2893296 |
15 | 86.0034904 | 77.7155248 | 80.7086889 | 66.3881654 | 68.1065825 |
16 | 87.5204417 | 83.1987903 | 84.0988609 | 70.0120242 | 72.0574744 |
17 | 84.2148009 | 76.070038 | 78.7926599 | 67.4296724 | 68.4350389 |
18 | 78.6725289 | 77.1289762 | 80.3418214 | 73.6405846 | 76.0396917 |
19 | 78.0315037 | 70.8601264 | 75.4754609 | 73.0796333 | 63.786547 |
20 | 81.8743452 | 72.4690338 | 76.1132502 | 67.3613983 | 65.9965706 |
21 | 83.198569 | 73.8558182 | 76.5467336 | 64.5328944 | 68.9867683 |
22 | 88.130259 | 77.4288517 | 83.336639 | 63.0684523 | 67.9211706 |
23 | 87.637672 | 78.1335509 | 79.2106649 | 68.9081741 | 72.4009793 |
24 | 84.6673405 | 80.5989264 | 75.8829211 | 69.7015124 | 70.479783 |
AVG | 83.2101587 | 76.2607267 | 77.6225878 | 72.2549576 | 69.7443524 |
SD | 6.57679685 | 5.08427951 | 5.24738619 | 6.16531811 | 5.37680325 |
cv | 8% | 7% | 7% | 9% | 8% |
表7B-使用孔校正因子的校正数据(续)
孔 | FB3-运行3 | FB3-运行4 | FB4-运行1 | FB4-运行2 | FB4-运行3 |
1 | 79.5696622 | 110.900717 | 78.2433361 | 83.7694223 | 77.5319054 |
2 | 67.9868271 | 102.692965 | 74.7428276 | 72.9717626 | 87.927262 |
3 | 68.8259002 | 114.599478 | 71.3045164 | 72.5338501 | 88.4610627 |
4 | 66.58805 | 98.9545133 | 79.716972 | 70.4671928 | 87.0864708 |
5 | 69.3007672 | 119.199247 | 83.6675754 | 74.7418372 | 84.5021493 |
6 | 64.923234 | 107.090507 | 81.6670805 | 73.9821731 | 79.9695103 |
7 | 69.2431199 | 116.305319 | 83.5262793 | 86.7849603 | 70.6762418 |
8 | 77.6997865 | 104.380262 | 80.3128921 | 82.6369611 | 84.5533972 |
9 | 68.8575284 | 108.097585 | 88.0661667 | 85.4229231 | 83.9831618 |
10 | 67.056927 | 108.734354 | 73.6920286 | 80.0856535 | 78.818238 |
11 | 73.8653438 | 115.755117 | 76.6809788 | 77.0876956 | 80.1535855 |
12 | 75.5203816 | 117.484425 | 81.4623357 | 85.6791781 | 73.8765046 |
13 | 67.0536223 | 119.512483 | 76.1449927 | 77.0367861 | 65.9737486 |
14 | 71.854751 | 106.173572 | 77.2129946 | 79.3004774 | 77.7581545 |
15 | 69.8943553 | 104.377376 | 78.5705069 | 81.7114405 | 78.6434268 |
16 | 73.8138118 | 110.069273 | 73.1224541 | 75.9525991 | 72.3609016 |
17 | 72.1076267 | 109.438153 | 80.6293145 | 85.4092826 | 80.1828282 |
18 | 68.8970227 | 118.476198 | 73.0106077 | 77.025529 | 64.141456 |
19 | 71.5028783 | 112.180191 | 66.4503302 | 70.6650011 | 62.8998135 |
20 | 68.092099 | 112.355555 | 79.1148079 | 82.3104088 | 78.0589381 |
21 | 65.3567494 | 106.298865 | 84.1861908 | 85.8501268 | 75.0441903 |
22 | 65.7504742 | 105.362103 | 85.3521976 | 87.4747488 | 81.7915023 |
23 | 71.6180633 | 108.429506 | 81.5150972 | 86.2955156 | 80.9082904 |
24 | 76.9497552 | 99.9194323 | 82.1773801 | 76.9463741 | 71.4183497 |
AVG | 70.5136974 | 109.866133 | 78.7737443 | 79.6725792 | 77.7800454 |
SD | 4.02488381 | 5.94987991 | 5.00391642 | 5.48861987 | 7.12341778 |
cv | 6% | 5% | 6% | 7% | 9% |
表7B-使用孔校正因子的校正数据(续)
孔 | FB4-运行4 | FB5-运行1 | FB5-运行2 | FB5-运行3 | FB5-运行4 | |
1 | 67.7733987 | 86.365305 | 87.5737654 | 80.197471 | 76.50222982 | |
2 | 64.0422943 | 71.1456452 | 83.2365872 | 81.6566945 | 65.58974917 | |
3 | 79.248417 | 79.9787483 | 81.88492 | 77.9991871 | 75.06396191 | |
4 | 76.4136876 | 83.4656941 | 87.9318797 | 82.1211101 | 73.53243591 | |
5 | 79.5176361 | 85.1761772 | 86.7026218 | 79.4169975 | 78.93298251 | |
6 | 77.1529219 | 96.883532 | 103.092491 | 74.0231116 | 79.89056151 | |
7 | 80.2111521 | 83.3763436 | 82.6641258 | 72.4885439 | 76.79977427 | |
8 | 84.4802726 | 78.6841105 | 77.6047918 | 77.0286577 | 82.94676936 | |
9 | 81.2665676 | 78.5983511 | 75.5023618 | 76.4036486 | 74.78174533 | |
10 | 76.8065306 | 75.1387886 | 73.3327502 | 74.1224323 | 74.68043118 | |
11 | 78.3017342 | 82.4903615 | 84.9701696 | 79.9781388 | 83.63807295 | |
12 | 81.0384116 | 86.2497675 | 93.7803249 | 86.3741989 | 82.61170696 | |
13 | 77.8133104 | 97.7619401 | 96.1794649 | 79.4568126 | 92.99066778 | |
14 | 79.4190157 | 94.8432991 | 97.1652341 | 85.391547 | 88.89357748 | |
15 | 79.693998 | 85.1120596 | 87.2445423 | 77.821795 | 78.45050126 | |
16 | 73.7380113 | 82.4520295 | 84.1296927 | 75.8858695 | 76.53435698 | |
17 | 79.7938873 | 81.8384404 | 86.6488137 | 79.6012492 | 77.6476965 | |
18 | 74.256501 | 96.577392 | 97.1224336 | 78.979492 | 92.32159217 | |
19 | 63.4500682 | 102.254392 | 103.792186 | 90.638074 | 97.81758991 | |
20 | 80.4953672 | 87.5271793 | 93.9370775 | 78.0306357 | 81.21824012 | |
21 | 78.9480254 | 87.967397 | 94.4310017 | 75.0649376 | 79.37783662 | |
22 | 88.5866908 | 81.1931526 | 89.8439807 | 72.7874031 | 77.83551278 | |
23 | 82.2425421 | 81.4289625 | 87.7515822 | 75.2808486 | 76.07565777 | |
24 | 76.4301533 | 88.1570356 | 92.9006713 | 84.1307505 | 81.49790301 | 总体 |
AVG | 77.5466915 | 85.6110877 | 88.7259779 | 78.953317 | 80.23464805 | 80.45079 |
SD | 5.75419702 | 7.52585143 | 7.89195843 | 4.46926259 | 7.04553136 | 5.8755866 |
cv | 7% | 9% | 9% | 6% | 9% | 7% |
在收集每个通量块的每次试验的所有ECAR和OCR数据之后,计算所有五个通量块的每个孔的平均ECAR和OCR。这些数据在表6中表示为“AVG”。例如,评估的五个通量块中的1号孔的平均ECAR测量值为74。计算5个通量块的每个孔的平均ECAR测量值和平均OCR测量值。以这种方式,通过用单个通量块重复测量或用若干通量块进行多次测量,可以获得给定传感器的平均传感器测量值。
为了计算传感器校正因子,计算了来自每个传感器(即,来自所有五个通量块的相同位置的孔)的平均ECAR和OCR测量值。通过将五个通量块的每个孔(孔1、孔2、...孔24)的每个平均ECAR和OCR读数求平均来计算出这些测量值。另外,根据五个通量块的每个孔的每个ECAR和OCR平均读数,计算通量块的所有孔的ECAR和OCR测量值的标准偏差。在所有五个通量块的同一个孔中使用相同的传感器;例如,使用分析仪的传感器24来测量五个通量块的每一个通量块中的孔24中的ECAR和OCR。使用平均ECAR和OCR以及ECAR和OCR测量值的标准差来计算任何通量块的ECAR和OCR的变异系数。如表6所示,ECAR测量值的变异系数为10%,OCR测量值的CV为4%。这些数据显示了在五个通量块之间ECAR和OCR测量值的良好孔间重现性。
此外,通过将通量块的平均ECAR测量值除以来自分析仪中的每个传感器的测量值的平均ECAR来计算通量块的每个孔的校正因子。如表7A中所示的,根据各通量块的变异系数计算平均变异系数。这个平均CV是12。此外,表7B显示了当对采集自使用通量块的数据应用校正因子时,CV如何降低,且结果的再现性如何因此提高。在表7B中,用校正因子作为乘数与来自通量块的每个孔的平均ECAR测量值相乘,结果等于来自通量块的每个孔的经校准的平均ECAR测量值。以这种方式调整通量块的每个孔的平均ECAR测量值。此外,对通量块的每个孔的经校正的平均ECAR测量值求平均,结果等于7%的平均变异系数。由此可见,通过应用校正因子,24传感器分析仪的平均变异系数降低了5%,由此表明,在校准通量分析仪时应用校正因子提供了改善的结果。
实施例2
该实施例将本公开的通量块与从通量分析仪取得测量值中的生物(基于细胞)标准品进行比较。在该实施例中,通量块的总体布置如图1,只是一些通量块具有96个孔。分别利用通量块和基于细胞的标准品从Seahorse XF24和XF96通量分析仪获得OCR和ECAR测量值。基于细胞的标准品是汇合的细胞单层(C2C12小鼠骨骼肌成纤维细胞)。表8A显示了来自XF24分析仪的数据,表8B显示了来自XF96分析仪的数据;这些数据一般性地代表本公开的通量块的测试和使用。这些表报告了标准品孔之间的变异系数(CV)(其为与这些孔一起使用的分析仪的各传感器的CV)。其次还有通过每个分析仪测量的OCR和ECAR的速率/通量(基于分析仪的所有24个或96个传感器计算的)。对于OCR,计算不同孔板之间的CV,当使用基于细胞的标准品时为39%,而当使用通量块时仅为18%。对于ECAR,基于细胞的标准品的CV为34%,通量块的CV为22%。由此可见,相比于基于细胞的标准品,通量块产生的测量值由于标准品所致的变异性(而非可归因于分析仪的变异性)小得多。
表8A
XF24 | 基于细胞的标准品 | 通量块 |
平均OCR(所有板) | 211 | 496 |
CV OCR(板内的孔间变异) | 10% | 7% |
CV OCR平均值 | 39% | 18% |
平均ECAR | 54 | 73 |
CV ECAR | 8% | 13% |
CV ECAR(所有板之间的变异) | 34% | 22% |
表8B
XF96 | 基于细胞的标准品 | 通量块 |
平均OCR(所有板) | 158 | 142 |
CV OCR(板内的孔间变异) | 5% | 9% |
Unif OCR(所有板的变异) | 30% | 23% |
平均ECAR(所有板) | 46 | 66 |
CV ECAR(板内的孔间变异) | 11% | 9% |
UnifECAR(所有板之间的变异) | 22% | 18% |
关于孔间变异(即来自单个孔板的各个孔的24个或96个测量值的CV),某些使用通量块的测量值导致的CV数字比基于细胞的标准品更高。对于XF24分析仪,基于细胞的测定法的ECAR的CV%为8%,而通量块的ECAR的CV%为13%。对于XF96分析仪,基于细胞的标准品的OCR的CV%为5%,而通量块的OCR的CV%为9%。然而,此类变异中至少有一些归因于传感器而不是标准品。
在本文中引用的所有参考文献,包括专利、专利申请和出版物,均通过提述完整并入本文。
在本公开中,无论何处见到词语“包含”,可以预期的是,可以使用短语“基本上由...组成”或“由......组成”取而代之。除非特别指出,单数的使用包括复数情况。每当术语“约”出现在一个值之前时,应该理解的是,说明书还提供除了术语“约”之外的值的描述,反之亦然。
在本公开中,可以通过用于实施这样的功能的一种或多种手段来实施本文中叙述的任何功能。关于在说明书中描述的过程,预期说明书还提供用于实施那些过程的装置的描述。关于说明书中描述的装置,预期说明书还提供对这样的装置的部件、零件、部分的描述。
虽然从属权利要求依照美国专利实践具有单一的依赖性,但是任何从属权利要求中的每个特征可以与其他从属权利要求或主权利要求中的每个特征组合。
应当理解的是,针对本文所述的当前优选的实施方案的各种改变和修改对于本领域技术人员而言是不言自明的。可以做出这样的改变和修改,而不脱离本发明主题的精神和范围,以不减弱本发明主题的预期优势。因此预期所附权利要求书涵盖这样的改变和修改。
Claims (10)
1.一种用于校准通量分析仪的装置,其包括:
第一框架,其包括多个孔,每个孔在其底部具有孔开口;
第二框架,其与所述第一框架相互连接或一体形成,其中所述第二框架限定腔室及通向该腔室的入口,并且所述第二框架具有至少一个腔室开口,其中所述腔室开口至少部分地与所述孔开口重叠;以及
在所述第一框架和第二框架之间的选择性渗透膜,该渗透膜将所述孔开口与所述腔室开口分开。
2.权利要求1的装置,其中所述膜对于O2、CO2或这两者是基本上可渗透的,并且是基本上不透水的。
3.前述任一项权利要求的装置,其中所述腔室开口是多个腔室开口,并且每个所述孔开口与腔室开口对齐。
4.前述任一项权利要求的装置,其中所述第二框架包括可移除的或可滑动的壁,所述壁在所述第一框架的相反面,并被适配为容许达到所述腔室。
5.前述任一项权利要求的装置,其中进一步包括在所述膜的第一侧上的第一隔离件和在所述膜的第二侧上的第二隔离件,两个隔离件均包括隔离件开口,所述第一隔离件和所述第二隔离件配合在所述第一框架和所述第二框架之间,并且被定位以使得所述隔离件开口与所述孔开口和所述腔室开口对齐。
6.前述任一项权利要求的装置,其中所述孔至少部分地沿着该孔的深度具有圆锥形状。
7.前述任一项权利要求的装置,其中所述第一框架在每个所述孔的底部具有底壁,并且每个所述底壁限定所述孔开口之一,并且所述孔的每个底壁具有一个或多个传感器挡块。
8.前述任一项权利要求的装置,其中所述膜以物理或化学方式固定到所述框架中的一者或两者上。
9.前述任一项权利要求的装置,其中所述膜可从所述装置上移除,使得该膜可以更换,从而复原该校准装置。
10.一种校准通量分析仪的方法,所述方法包括:
用测试溶液填充如前述任一项权利要求的装置的多个孔,其中所述测试溶液含有具有已知值的第一分析物,
使所述测试溶液与测量所述第一分析物的通量传感器接触;
供应测试流体到该装置的第二框架的所述腔室,其中所述测试流体包含穿过所述膜的物质;
测量所述第一分析物的通量以获得测得的通量。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/421,173 | 2017-01-31 | ||
US15/421,173 US10883978B2 (en) | 2017-01-31 | 2017-01-31 | Method and device for calibration of biological flux |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108375558A true CN108375558A (zh) | 2018-08-07 |
Family
ID=61022110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810087909.3A Pending CN108375558A (zh) | 2017-01-31 | 2018-01-29 | 用于校准生物通量的方法和装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US10883978B2 (zh) |
EP (1) | EP3354332A1 (zh) |
JP (1) | JP7025934B2 (zh) |
KR (1) | KR20180089282A (zh) |
CN (1) | CN108375558A (zh) |
AU (1) | AU2018200697B2 (zh) |
CA (1) | CA2990615A1 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102187633B1 (ko) * | 2020-01-16 | 2020-12-07 | 주식회사 바이오스페로 | 실시간 모니터링이 가능한 마이크로웰 플레이트 |
JP7507591B2 (ja) | 2020-04-03 | 2024-06-28 | キッコーマン株式会社 | 微生物培養シート |
CN112246294B (zh) * | 2020-10-15 | 2021-11-19 | 复旦大学附属中山医院 | 一种实验室用移液器枪头快速装盒装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5462874A (en) * | 1993-06-23 | 1995-10-31 | Wolf; Martin L. | Dialyzed multiple well tissue culture plate |
US20030186217A1 (en) * | 2000-09-19 | 2003-10-02 | Augustinus Bader | Method and device for growing and/or treating cells |
US20050054028A1 (en) * | 2003-09-10 | 2005-03-10 | Thermogenic Imaging | Method and device for measuring multiple physiological properties of cells |
US20050063862A1 (en) * | 2003-09-24 | 2005-03-24 | 3M Innovative Properties Company | System, kit, and method for measuring membrane diffusion |
US20100124761A1 (en) * | 2008-10-14 | 2010-05-20 | Neilson Andy C | Method and device for measuring extracellular acidification and oxygen consumption rate with higher precision |
CN102387863A (zh) * | 2009-04-09 | 2012-03-21 | 拜尔技术服务有限责任公司 | 生物检验被分析物的一次性微流体测试盒 |
Family Cites Families (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4427415A (en) * | 1979-01-05 | 1984-01-24 | Cleveland Patrick H | Manifold vacuum biochemical test method and device |
US4296205A (en) * | 1980-02-22 | 1981-10-20 | Verma Dharmvir S | Cell culture and continuous dialysis flask and method |
US4948442A (en) * | 1985-06-18 | 1990-08-14 | Polyfiltronics, Inc. | Method of making a multiwell test plate |
US4895706A (en) * | 1986-10-28 | 1990-01-23 | Costar Corporation | Multi-well filter strip and composite assemblies |
FR2657543B1 (fr) * | 1990-01-26 | 1992-12-18 | Biocom Sa | Dispositif modulaire pour le recueil, l'incubation, la filtration d'echantillons multiples. |
US5104804A (en) * | 1990-06-04 | 1992-04-14 | Molecular Devices Corporation | Cell assay device used in a microphysiometer |
US5326533A (en) | 1992-11-04 | 1994-07-05 | Millipore Corporation | Multiwell test apparatus |
US5342581A (en) * | 1993-04-19 | 1994-08-30 | Sanadi Ashok R | Apparatus for preventing cross-contamination of multi-well test plates |
DE19512117A1 (de) * | 1995-04-04 | 1996-10-10 | Itt Ind Gmbh Deutsche | Meßeinrichtung |
FR2735496B1 (fr) * | 1995-06-15 | 1997-08-29 | Chemodyne Sa | Nouveau dispositif de culture de cellules et les tissus ainsi recoltes |
US5602028A (en) * | 1995-06-30 | 1997-02-11 | The University Of British Columbia | System for growing multi-layered cell cultures |
JPH11509420A (ja) * | 1997-02-06 | 1999-08-24 | エル. ウルフ,マーティン | 透析式マルチプルウエル組織培養プレート |
US5962250A (en) * | 1997-10-28 | 1999-10-05 | Glaxo Group Limited | Split multi-well plate and methods |
US20020132360A1 (en) * | 2000-11-17 | 2002-09-19 | Flir Systems Boston, Inc. | Apparatus and methods for infrared calorimetric measurements |
US7118909B2 (en) * | 2001-05-30 | 2006-10-10 | Gevaert Matthew R | Apparatus and method for biomaterial assay |
US7332328B2 (en) * | 2001-09-07 | 2008-02-19 | Corning Incorporated | Microcolumn-platform based array for high-throughput analysis |
WO2003065037A2 (en) * | 2002-01-31 | 2003-08-07 | Pion, Inc. | Method and apparatus for measuring membrane permeability |
AU2003265228A1 (en) * | 2002-03-12 | 2003-12-22 | Surface Logix, Inc. | Assay device that analyzes the absorption, metabolism, permeability and/or toxicity of a candidate compound |
JP2005523717A (ja) * | 2002-05-01 | 2005-08-11 | マサチューセッツ インスティテュート オブ テクノロジー | 生化学的過程の迅速なスクリーニングおよび分析のための微小発酵槽 |
US7112443B2 (en) * | 2002-10-18 | 2006-09-26 | Symyx Technologies, Inc. | High throughput permeability testing of materials libraries |
DE20305570U1 (de) * | 2003-04-07 | 2004-05-13 | Roche Diagnostics Gmbh | Mehrkammer-Mikrodialysevorrichtung |
DE10346451B4 (de) * | 2003-10-03 | 2007-08-02 | Bionas Gmbh | Verfahren zur Überwachung von Veränderungen und Zuständen in Reaktionskammern |
US20070087401A1 (en) * | 2003-10-17 | 2007-04-19 | Andy Neilson | Analysis of metabolic activity in cells using extracellular flux rate measurements |
US8658349B2 (en) | 2006-07-13 | 2014-02-25 | Seahorse Bioscience | Cell analysis apparatus and method |
WO2005095950A1 (en) * | 2004-03-30 | 2005-10-13 | Pfizer Products Inc. | Method and device for evaluation of pharmaceutical compositions |
GB0707776D0 (en) * | 2007-04-23 | 2007-05-30 | Robio Systems Ltd | A Container for culturing and/or transporting embryos or oocytes. an insert for the container and a method of transporting same |
WO2008156708A2 (en) * | 2007-06-15 | 2008-12-24 | Massachusetts Institute Of Technology | Methods and compositions for enhanced differentiation from embryonic stem cells |
DE102008045621A1 (de) * | 2008-09-03 | 2010-03-04 | Novalung Gmbh | Gastransfervorrichtung und Verwendung einer strukturierten Membran |
EP2168668A1 (en) * | 2008-09-25 | 2010-03-31 | Gambro Lundia AB | Membrane for cell expansion |
EP2401353B1 (en) * | 2009-02-25 | 2015-04-29 | Corning Incorporated | Cell culture system with manifold |
WO2011139263A1 (en) * | 2010-05-05 | 2011-11-10 | Neogen Corporation | Microbial growth detector |
AU2012312654B2 (en) * | 2011-09-19 | 2017-04-13 | Gencia Corporation | Modified creatine compounds |
WO2014078379A2 (en) | 2012-11-13 | 2014-05-22 | Seahorse Bioscience | Apparatus and methods for three-dimensional tissue measurements based on controlled media flow |
CA2906697A1 (en) * | 2013-03-15 | 2014-09-18 | Gencia Corporation | Compositions and methods for treating conditions that affect epidermis |
EP3148700B1 (en) | 2014-06-02 | 2020-03-18 | Agilent Technologies, Inc. | Single column microplate system and carrier for analysis of biological samples |
US20160215267A1 (en) | 2015-01-23 | 2016-07-28 | Ikko-Zu Corporation | Methods for generating 3d cell culture model in high respiration environments for high-content analyses and screening |
-
2017
- 2017-01-31 US US15/421,173 patent/US10883978B2/en active Active
-
2018
- 2018-01-03 CA CA2990615A patent/CA2990615A1/en active Pending
- 2018-01-10 EP EP18150929.0A patent/EP3354332A1/en active Pending
- 2018-01-10 KR KR1020180003121A patent/KR20180089282A/ko active IP Right Grant
- 2018-01-16 JP JP2018004873A patent/JP7025934B2/ja active Active
- 2018-01-29 CN CN201810087909.3A patent/CN108375558A/zh active Pending
- 2018-01-30 AU AU2018200697A patent/AU2018200697B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5462874A (en) * | 1993-06-23 | 1995-10-31 | Wolf; Martin L. | Dialyzed multiple well tissue culture plate |
US20030186217A1 (en) * | 2000-09-19 | 2003-10-02 | Augustinus Bader | Method and device for growing and/or treating cells |
US20050054028A1 (en) * | 2003-09-10 | 2005-03-10 | Thermogenic Imaging | Method and device for measuring multiple physiological properties of cells |
US20050063862A1 (en) * | 2003-09-24 | 2005-03-24 | 3M Innovative Properties Company | System, kit, and method for measuring membrane diffusion |
US20100124761A1 (en) * | 2008-10-14 | 2010-05-20 | Neilson Andy C | Method and device for measuring extracellular acidification and oxygen consumption rate with higher precision |
CN102387863A (zh) * | 2009-04-09 | 2012-03-21 | 拜尔技术服务有限责任公司 | 生物检验被分析物的一次性微流体测试盒 |
Also Published As
Publication number | Publication date |
---|---|
EP3354332A1 (en) | 2018-08-01 |
JP7025934B2 (ja) | 2022-02-25 |
US10883978B2 (en) | 2021-01-05 |
KR20180089282A (ko) | 2018-08-08 |
AU2018200697B2 (en) | 2022-06-30 |
US20180217126A1 (en) | 2018-08-02 |
AU2018200697A1 (en) | 2018-08-16 |
JP2018121621A (ja) | 2018-08-09 |
CA2990615A1 (en) | 2018-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8697431B2 (en) | Method and device for measuring multiple physiological properties of cells | |
US10620187B2 (en) | Device and methods of using device for detection of hyperammonemia | |
CN108375558A (zh) | 用于校准生物通量的方法和装置 | |
US8202702B2 (en) | Method and device for measuring extracellular acidification and oxygen consumption rate with higher precision | |
US11680241B2 (en) | Perfusion enabled bioreactors | |
JP2003500042A (ja) | 細胞培養の分析を実施する装置 | |
CN108680622A (zh) | 一种电化学生物传感器中红细胞压积测量和校正的方法 | |
DE102010063033A1 (de) | Verfahren zur Inbetriebnahme eines Messgeräts | |
CN101568828A (zh) | 用于液体的离子传感器及其制造方法 | |
RU2658516C2 (ru) | Аппарат c матрицей электрохимических датчиков | |
US20150010994A1 (en) | Non-invasive sensing of bioprocess parameters | |
DE29511566U1 (de) | Mobiles Handgerät mit Biosensor | |
CN109313156A (zh) | 用于分析体液样本的测试*** | |
US6183418B1 (en) | Process and measuring system for detection of substances emitted or perspired through the skin | |
Dixon et al. | The control and measurement of ‘CO2’during fermentations | |
CN103969302B (zh) | 一种测定生物膜内溶氧扩散系数的方法 | |
Dornhof et al. | Next Generation Organ-on-Chip System for Directional Control of Culture Conditions and Metabolic Monitoring of Tumor Organoids | |
JP5149693B2 (ja) | 濃度測定システム及び濃度測定方法 | |
US5125262A (en) | Method of determining oxygen demand of a liquid | |
TWI393882B (zh) | 用於細胞呼吸活性評估並結合圖案化細胞培養之溶氧電極陣列晶片及其製法 | |
DE19617964C2 (de) | Verfahren und Meßvorrichtung zum Nachweis von durch die Haut abgegebenen oder ausgedunsteten Substanzen und zugehörige Meßvorrichtung | |
US20220267705A1 (en) | Co-culture apparatus, co-culture system, and co-culture method | |
JP4649671B2 (ja) | 酵素センシングにおける検出セル、及び酵素センシングシステム | |
Krommenhoek | Integrated sensor array for on-line monitoring micro bioreactors | |
DE19648719B4 (de) | Verfahren zum Prüfen von manometrischen Meßgeräten für die Messung des biochemischen Sauerstoffbedarfs |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |