CN105424938A - NMR virus rapid detection method based on KMnF4 nanoprobes - Google Patents
NMR virus rapid detection method based on KMnF4 nanoprobes Download PDFInfo
- Publication number
- CN105424938A CN105424938A CN201510750082.6A CN201510750082A CN105424938A CN 105424938 A CN105424938 A CN 105424938A CN 201510750082 A CN201510750082 A CN 201510750082A CN 105424938 A CN105424938 A CN 105424938A
- Authority
- CN
- China
- Prior art keywords
- probe
- spin
- relaxation time
- target viral
- kmnf
- 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
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
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
- G01N33/56983—Viruses
-
- 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
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54366—Apparatus specially adapted for solid-phase testing
Abstract
The invention discloses an NMR virus rapid detection method based on KMnF4 nanoprobes, and belongs to the technical field of food safety rapid detection. The method relies on an established nuclear magnetic resonance detection method capable of being applied to viruses in samples, and whether the samples contain viruses or not is detected by utilizing the influences of the paramagnetic property of the KMnF4 nanoprobes on nuclear magnetic resonance relaxation time. According to different specific corresponding relations, the KMnF4 nanoprobes show a linear relation under certain conditions, namely, the larger the content of the KMnF4 nanoprobes is, the smaller the spin-lattice relaxation time value of the samples will be, and therefore viruses can be quantitatively detected within a certain range. The method can be applied to rapid detection of viruses in the samples, and therefore the method can be applied to rapid screening of a large batch of samples to be detected.
Description
Technical field
The invention belongs to technical field of rapid detection of food safety, relate to a kind of method for quick of virus.
Background technology
Ultimate principle: monoclonal antibody or antigen molecule are combined by covalent bond with enzyme molecule, this combination can not change immunological characteristic and the biologically active of monoclonal antibody, antigen and enzyme, and specific monoclonal antibody only can be combined with specific antigen.KMnF
4nano-probe is the KMnF of antibody modification modification
4nano particle, KMnF
4owing to having element M n, its outermost layer has unpaired electron, thus has lasting electron spin.Total magnetic moment of non-paired electron spin is 657 times of proton spin.Because relaxivity is along with square change of magnetic moment, so Electron Relaxation efficiency is 500,000 times of proton relaxation efficiency, therefore, the impact of its particle on the nuclear magnetic resonance spin-Lattice Relaxation Time of surrounding water molecules is very large.This namely this kind of material as the mechanism of mri contrast agent.Very micro-nanometer KMnF
4nuclear magnetic resonance spin-the Lattice Relaxation Time of water will be caused to decline to a great extent, just can be clear and definite by blank, cause owing to there is this material.Therefore KMnF can be built
4nano-probe biology sensor, does detection predetermined substance from the angle of magnetic resonance, and the present invention is detected specific virus by the biology sensor of structure antibody modification.
Its main step principle: the specificity KMnF 1) detecting target viral
4the preparation of nano-probe.Commercially KMnF
4nano material, also can prepare nano level KMnF by other chemical synthesis process
4.Use silane coupling agent or PEG(polyglycol), modify and improve biocompatibility, its general formula is: Y (CH
2) nSiX
3.Herein, n is 0-3; X is hydrolyzable group; Y is organo-functional group.X is chloro, methoxyl, ethoxy, acetoxyl group etc. normally, generates silanol (Si (OH) during the hydrolysis of these groups
3), and be combined with dead matter, form siloxane.Y is vinyl, amino, epoxy radicals, methacryloxy, sulfydryl.These reactive groups can react with organic substance and combine.Therefore, by using silane coupling agent, can erect " molecular bridge " between dead matter and the interface of organic substance, link together the material of two kinds of character great disparities the performance improving compound substance and the effect increasing bonding strength.Can realize surface-functionalized by modified specificity antibody again, form specific probe, then close unnecessary avtive spot.2) adopt conventional method that the specific monoclonal antibody of target viral to be checked is fixed on ELISA Plate surface, and unnecessary avtive spot is closed, for subsequent use.Monoclonal antibody is fixing in ELISA Plate, and this has been the mature technology of industry.3) measuring samples is added to the 2nd) ELISA Plate securing target viral monoclonal antibody that obtains of step hatches 20mins, if there is target viral in sample, then target viral can be combined by the monoclonal antibody in ELISA Plate, and by washing, then target viral is fixed in ELISA Plate.4) by the 1st) KMnF of the made antibody modification of step
4nano-probe adds the 3rd) in the ELISA Plate that obtains of step, now, if ELISA Plate has target viral, by the specific reaction of probe, then probe can with the target viral generation specific binding in ELISA Plate, forming double antibodies sandwich structure, now by aseptic washed with de-ionized water, just can wash away not having the probe combined.The probe just only having combining target virus remaining in ELISA Plate.If ELISA Plate does not have target viral, then so probe is all washed away.5) add quantitative eluent (30% methyl alcohol) probe combining target viral in ELISA Plate is eluted.The solution obtained, measures the spin-lattice relaxation time of solution by nuclear magnetic resonance analyser (NMR20, Niu Mai company).Above-mentioned steps is repeated as blank using aseptic deionized water, the spin-lattice relaxation time that solution records is compared with blank, and there were significant differences, illustrates in solution and has probe to exist, thus have target viral in interpret sample, the amount of probe and the drop-out value of spin-lattice relaxation time proportional.The bright probe of more speaking more declined is more, thus side light target viral is more, is quantitatively detected the number of target viral in sample by mark-on checking.
This process employs ELISA Plate technique for fixing, double antibodies sandwich technology, nuclear magnetic resonance technique, the design of its step, mainly for effective separation of probe when operating excessive, makes testing result accurate.For adopting, the virus of double antibodies sandwich technology separation is applicable, for the virus that some are special, can not to adopt double antibodies sandwich, then inapplicable.
The major advantage of the method is exactly quick, highly sensitive.2-3 days even time of several days is cultivated relative to the microorganism of virus.The method depends primarily on the pretreatment time of sample, and magnetic resonance detection only needs a few minutes.Therefore, the positive-selecting of extensive measuring samples can be done by the method, can quantitatively detect to a certain extent.
Summary of the invention
The object of this invention is to provide a kind of based on KMnF
4the NMR virus method for quick of nano-probe, for evaluating various different sample.The method is a kind of objective method effectively detecting virus in sample, thus greatly reduces the screening time of sample virus to a certain extent.
A kind of based on KMnF
4the NMR virus method for quick of nano-probe, nuclear magnetic resonance analyser, to the response sensibility of paramagnetic material, proposes NMR (Nuclear Magnetic Resonance) relaxation Parameters variation and KMnF
4the correlation metric of nano-probe content.
What the present invention depended on foundation can be used for harmful virus specificity KMnF in sample
4the separation of nano-probe, from the angle of NMR (Nuclear Magnetic Resonance) relaxation time variations, detects the harmful virus in sample.Because nuclear magnetic resonance analyser SPIN-LATTICE RELAXATION efficiency and spin-spin relaxation efficiency are to KMnF
4nano-probe is very responsive, namely in deionized water, there is the KMnF of trace
4nano-probe, then the spin-lattice relaxation time of water and spin-spin relaxation will significantly decline.By quantitatively detecting the immunological probe content in sample, thus harmful virus content in sample can be gone out by indirect quantification.The viral level detected and probe content linear correlation, degree of fitting is better.Final with the corresponding relation between immunological probe and virus for tie, determine the viral number in sample.Therefore, the method can do the positive-selecting of extensive measuring samples, can quantitatively detect to a certain extent.
The present invention is achieved by the following technical solutions.
One of the present invention is based on KMnF
4the NMR virus method for quick of nano-probe, step is as follows.
(1) the specificity KMnF of target viral is detected
4the preparation of nano-probe.
(2) target viral specific monoclonal antibody is fixed on ELISA Plate surface, and unnecessary avtive spot bovine serum albumin is closed.
(3) measuring samples is added in the obtained ELISA Plate securing target viral monoclonal antibody of step (2) and hatches 20mins, if there is target viral in sample, then target viral can be combined by the monoclonal antibody in ELISA Plate, and by washing, then target viral is fixed in ELISA Plate.
(4) by the KMnF of antibody modification made for step (1)
4nano-probe adds in the ELISA Plate that step (3) obtains, now, if ELISA Plate has target viral, by the specific reaction of probe, then probe can with the target viral generation specific binding in ELISA Plate, forming double antibodies sandwich structure, now by aseptic washed with de-ionized water, just can wash away not having the probe combined.The probe just only having combining target virus remaining in ELISA Plate.If ELISA Plate does not have target viral, then so probe is all washed away.
(5) add quantitative eluent (30% methyl alcohol) probe combining target viral in ELISA Plate is eluted.The solution obtained, measures the spin-lattice relaxation time of solution by nuclear magnetic resonance analyser (NMR20, Niu Mai company).Above-mentioned steps is repeated as blank using aseptic deionized water, the spin-lattice relaxation time that solution records is compared with blank, there were significant differences, illustrate in solution and have probe to exist, thus having target viral in interpret sample, the drop-out value of the amount of probe and spin-lattice relaxation time and spin spin relaxation time is proportional.The bright probe of more speaking more declined is more, thus side light target viral is more, is quantitatively detected the number of target viral in sample by mark-on checking.
Described probe is the KMnF with paramagnetic properties
4nano material, nanometer particle size is less than 200 nanometers.
Described target viral finally detect the change of evaluation method based on the NMR (Nuclear Magnetic Resonance) relaxation time.
Described relaxation time characteristic, refers to spin-lattice relaxation time and spin spin relaxation time.
Beneficial effect of the present invention: the invention provides a kind of method objectively detecting the harmful virus in sample fast, it is characterized in that depending on foundation can be used for detect KMnF
4the magnetic resonance detection method of nano-probe.The method can objectively detect virus in sample effectively, confirms compared to the biological culture of virus, and the method has the advantage detected fast, may be used for the rapid screening of extensive sample.
Embodiment
The present invention will be described further by following examples.
Embodiment 1.
Whether check sample measures it containing virus---bovine viral diarrhea virus.
1.KMnF
4prepared by nano particle: KMnF
4nano particle can be bought from market, following methods also can be adopted to prepare: take 1.6mmolMnCl
24H2O joins in reactor, then adds the absolute ethyl alcohol of 10mL, and agitating solution is to dissolving completely; Take 3mmol potassium oleate and add above-mentioned solution, stir 1-2min, make it mix; The potassium fluoride (KF) taking 5-6g grinds more than 10min, after its particle diameter diminishes and attenuates, takes 4.98mmol, in the solution before being added; Again add absolute ethyl alcohol, general 30mL; Chuck is locked, and after good seal, reactor is put into baking oven, by temperature modulation 160 DEG C, and reaction 24h; When room temperature is down to by reactor, be generally the 3-4h after closing baking oven.Open reactor, supernatant is gone, stir with absolute ethanol washing; Washed once just carry out once centrifugal, until supernatant clarification.Rotating speed 8000r/min, time 3min; The sample washed is put into baking oven, and temperature is adjusted to 60 DEG C, and gained grain diameter is generally 20nm;
KMnF4 nano particle carboxyl modified: by the KMnF obtained
4with PEG-1500 in mass ratio 1:10 under the dissolving of absolute ethyl alcohol, add in reactor, after sealing, put into baking oven, temperature is adjusted to 90 DEG C, reacts 12 hours; When room temperature is down to by reactor, be generally the 3-4h after closing baking oven.Open reactor, supernatant is gone, stir with absolute ethanol washing; Washed once just carry out once centrifugal, until supernatant clarification.Rotating speed 8000r/min, time 3min; The final products washed are put and naturally dries in an oven, obtain the KMnF that PEG modifies
4nano particle.
Antibody modification: the KMnF taking a certain amount of carboxyl modified
4nano particle, adds EDC and NHS of 2 times of quality, adds each 1mL of PBS of 0.01M.Be placed on blending instrument, rotating speed 15 turns, reaction 45min.) by soak time to sample to carry out 10000r/min centrifugal, time 5min, and then the PBS adding 0.01M to carry out washing centrifugal, repeat 3 times.Centrifugal complete sample is respectively added appropriate anti-bovine viral diarrhea virus antibody, coupling 1h on blending instrument.The 10%BSA confining liquid 45min added after coupling completes.Close after terminating, rotating speed 8000r/min centrifuging 5min, centrifugal with the PBS cleaning of 0.01M, repeat 3 times, then unnecessary antibody, BSA are washed away, finally add PBS and carry out resuspended.Preparation resistance modify KMnF4 nano particle be immunological probe, be kept at 4 DEG C stand-by.
2. monoclonal antibody is fixed: can adopt conventional ELISA Plate fixing means, also can adopt following methods.With clean cover glass 5 × 5mm
2square, coating machine first sprays one deck Cr (2 – 4nm) in order to help fixing gold.Be used in surface sputtering again and spray one deck nm of gold, then adopt 200 microlitre 2mmol disulfide group-succinimide-propionic esters (DSP) to modify (DMSO, dimethyl sulfoxide (DMSO) dilution DSP) nm of gold.Add anti-bovine viral diarrhea virus antibody, fix on a glass also 37 C by 100 μ L100 μ g/mL monoclonal antibodies by e and hatch 45min.Add 1% bovine serum albumin (BSA), 22 C, 1 hour, avtive spot remaining on plate is carried out close and dry.
3. fecal specimens etc. is carried out pre-service, adopt FDA enrichment if desired, sample is filtered, increases the pre-service such as bacterium activation, obtain measuring samples.Measuring samples is added in the ELISA Plate securing specific monoclonal antibody that the 2nd step obtains and hatches 20mins, if there is target viral in sample, then can be combined by the monoclonal antibody in ELISA Plate, by washing, then target viral is fixed in ELISA Plate.
4. by the KMnF of antibody modification made for the 1st step
4nano-probe adds in the ELISA Plate that the 3rd step obtains, and now, if ELISA Plate has target viral, by the specific reaction of immunological probe, then probe with the target viral generation specific binding in ELISA Plate, can form double antibodies sandwich structure.Now by aseptic washed with de-ionized water, just can wash away not having the probe combined.The probe just only combining virus remaining in ELISA Plate.
5. add quantitative eluent (30% methyl alcohol) probe combining virus in the ELISA Plate of the 4th step is eluted.The solution obtained, measures the spin-lattice relaxation time of solution by nuclear magnetic resonance analyser (NMR20, Niu Mai company).Above-mentioned steps is repeated as blank using aseptic deionized water, the spin-lattice relaxation time that solution records is compared with blank, there were significant differences, illustrate in solution and have probe to exist, thus having target viral in interpret sample, the drop-out value of the amount of probe and spin-lattice relaxation time and spin spin relaxation time is proportional.The bright probe of more speaking more declined is more, thus side light virus is more, is quantitatively detected the number of target viral in sample by mark-on checking.
Embodiment 2.
Whether working sample is containing virus---pig parvoviral.
1.KMnF
4prepared by nano particle: KMnF
4nano particle can be bought from market, following methods also can be adopted to prepare: take 1.6mmolMnCl
24H2O joins in reactor, then adds the absolute ethyl alcohol of 10mL, and agitating solution is to dissolving completely; Take 3mmol potassium oleate and add above-mentioned solution, stir 1-2min, make it mix; The potassium fluoride (KF) taking 5-6g grinds more than 10min, after its particle diameter diminishes and attenuates, takes 4.98mmol, in the solution before being added; Again add absolute ethyl alcohol, general 30mL; Chuck is locked, and after good seal, reactor is put into baking oven, by temperature modulation 160 DEG C, and reaction 24h; When room temperature is down to by reactor, be generally the 3-4h after closing baking oven.Open reactor, supernatant is gone, stir with absolute ethanol washing; Washed once just carry out once centrifugal, until supernatant clarification.Rotating speed 8000r/min, time 3min; The sample washed is put into baking oven, and temperature is adjusted to 60 DEG C, and gained grain diameter is generally 20nm.
KMnF4 nano particle carboxyl modified: by the KMnF obtained
4with PEG-1500 in mass ratio 1:10 under the dissolving of absolute ethyl alcohol, add in reactor, after sealing, put into baking oven, temperature is adjusted to 90 DEG C, reacts 12 hours; When room temperature is down to by reactor, be generally the 3-4h after closing baking oven.Open reactor, supernatant is gone, stir with absolute ethanol washing; Washed once just carry out once centrifugal, until supernatant clarification.Rotating speed 8000r/min, time 3min; The final products washed are put and naturally dries in an oven, obtain the KMnF that PEG modifies
4nano particle.
Antibody modification: the KMnF taking a certain amount of carboxyl modified
4nano particle, adds EDC and NHS of 2 times of quality, adds each 1mL of PBS of 0.01M.Be placed on blending instrument, rotating speed 15 turns, reaction 45min.) by soak time to sample to carry out 10000r/min centrifugal, time 5min, and then the PBS adding 0.01M to carry out washing centrifugal, repeat 3 times.Centrifugal complete sample is respectively added pig parvoviral monoclonal antibody, coupling 1h on blending instrument.The 10%BSA confining liquid 45min added after coupling completes.Close after terminating, rotating speed 8000r/min centrifuging 5min, centrifugal with the PBS cleaning of 0.01M, repeat 3 times, then unnecessary antibody, BSA are washed away, finally add PBS and carry out resuspended.Preparation resistance modify KMnF4 nano particle be immunological probe, be kept at 4 DEG C stand-by.
2. monoclonal antibody is fixed: can adopt conventional ELISA Plate fixing means, also can adopt following methods.With clean cover glass 5 × 5mm
2square, coating machine first sprays one deck Cr (2 – 4nm) in order to help fixing gold.Be used in surface sputtering again and spray one deck nm of gold, then adopt 200 microlitre 2mmol disulfide group-succinimide-propionic esters (DSP) to modify (DMSO, dimethyl sulfoxide (DMSO) dilution DSP) nm of gold.Add pig parvoviral monoclonal antibody, fix on a glass also 37 C by 100 μ L100 μ g/mL pig parvoviral antibody by e and hatch 45min.Add 1% bovine serum albumin (BSA), 22 C, 1 hour, avtive spot remaining on plate is carried out close and dry.
3. sample is carried out pre-service, adopt FDA enrichment if desired, sample is filtered, increases the pre-service such as bacterium activation, obtain measuring samples.Measuring samples is added in the ELISA Plate securing large monoclonal antibody that the 2nd step obtains and hatches 20mins, if there is target viral in sample, then can be combined by the monoclonal antibody in ELISA Plate, by washing, then target viral is fixed in ELISA Plate.
4. by the KMnF of antibody modification made for the 1st step
4nano-probe adds in the ELISA Plate that the 3rd step obtains, and now, if ELISA Plate has pig parvoviral, by the specific reaction of immunological probe, then probe with the target viral generation specific binding in ELISA Plate, can form double antibodies sandwich structure.Now by aseptic washed with de-ionized water, just the probe not in conjunction with pig parvoviral can be washed away.The probe just only combining pig parvoviral remaining in ELISA Plate.
Add quantitative eluent (30% methyl alcohol) probe combining virus in ELISA Plate is eluted.The solution obtained, measures the spin-lattice relaxation time of solution by nuclear magnetic resonance analyser (NMR20, Niu Mai company).Above-mentioned steps is repeated as blank using aseptic deionized water, the spin-lattice relaxation time that solution records is compared with blank, there were significant differences, illustrate in solution and have probe to exist, thus having pig parvoviral in interpret sample, the drop-out value of the amount of probe and spin-lattice relaxation time and spin spin relaxation time is proportional.The bright probe of more speaking more declined is more, thus side light pig parvoviral is more, quantitatively can be detected the number of target viral in sample by mark-on checking.
Claims (3)
1. one kind based on KMnF
4the NMR virus method for quick of nano-probe, is characterized in that step is as follows:
(1) KMnF of target viral is detected
4the preparation of nano-probe;
(2) by fixing for subsequent use in ELISA Plate of target viral specific monoclonal antibody, and unnecessary avtive spot bovine serum albumin is closed;
(3) be added to by measuring samples in the ELISA Plate obtained by step (2), hatch a period of time, if containing target viral in measuring samples, then can be combined by the monoclonal antibody in ELISA Plate, after aseptic washed with de-ionized water, target viral is fixed in ELISA Plate;
(4) by KMnF obtained for step (1)
4nano-probe suspension is added to step (3) and secures in the ELISA Plate of target viral, if there is target viral, forms double antibodies sandwich, and by aseptic washed with de-ionized water, then the probe do not combined just is washed off; If there is not target viral, then all probes are all washed off;
(5) wash with the probe of eluant, eluent by the double antibodies sandwich in ELISA Plate, if also there is probe is exactly the probe catching target viral;
(6) suspension of the probe of step (5) gained, the relaxation time of carrying out nuclear magnetic resonance measures; Above-mentioned steps is repeated as blank using aseptic deionized water, the relaxation time spin-lattice relaxation time of the suspension recorded compares aseptic deionized water with spin spin relaxation time have remarkable reduction, then illustrate containing probe, thus have target viral in indirect proof sample; The decline of the amount of probe and spin-lattice relaxation time and spin spin relaxation time is proportional, by adding scalar quantity probe and indirect quantification goes out the amount of target viral.
2. according to claim 1 based on KMnF
4the NMR virus method for quick of nano-probe, is characterized in that described probe is nanoscale KMnF
4material, its nanometer particle size is less than 500 nanometers.
3. according to claim 1 based on KMnF
4the NMR virus method for quick of nano-probe, is characterized in that the described NMR (Nuclear Magnetic Resonance) relaxation time, refers to spin-lattice relaxation time and spin spin relaxation time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510750082.6A CN105424938A (en) | 2015-11-09 | 2015-11-09 | NMR virus rapid detection method based on KMnF4 nanoprobes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510750082.6A CN105424938A (en) | 2015-11-09 | 2015-11-09 | NMR virus rapid detection method based on KMnF4 nanoprobes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105424938A true CN105424938A (en) | 2016-03-23 |
Family
ID=55503278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510750082.6A Pending CN105424938A (en) | 2015-11-09 | 2015-11-09 | NMR virus rapid detection method based on KMnF4 nanoprobes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105424938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841271A (en) * | 2017-02-23 | 2017-06-13 | 南昌大学 | A kind of method that anaerobic bacteria Inhibitors form Chinese Traditional Medicinal Herbs are screened based on ZnO nano probe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217448A (en) * | 2013-03-26 | 2013-07-24 | 南昌大学 | NMR food-borne pathogen rapid detection method based on paramagnetic nano-Fe probes |
| WO2014107722A1 (en) * | 2013-01-07 | 2014-07-10 | The General Hospital Corporation | Manganese-based magnetic resonance contrast agents |
| CN104225629A (en) * | 2013-03-13 | 2014-12-24 | 南昌大学 | KMnF3 nuclear magnetic resonance imaging contrast agent, preparation method and application thereof |
-
2015
- 2015-11-09 CN CN201510750082.6A patent/CN105424938A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014107722A1 (en) * | 2013-01-07 | 2014-07-10 | The General Hospital Corporation | Manganese-based magnetic resonance contrast agents |
| CN104225629A (en) * | 2013-03-13 | 2014-12-24 | 南昌大学 | KMnF3 nuclear magnetic resonance imaging contrast agent, preparation method and application thereof |
| CN103217448A (en) * | 2013-03-26 | 2013-07-24 | 南昌大学 | NMR food-borne pathogen rapid detection method based on paramagnetic nano-Fe probes |
Non-Patent Citations (1)
| Title |
|---|
| ***: "发展KMnF3纳米晶作为高效新型磁共振造影剂", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841271A (en) * | 2017-02-23 | 2017-06-13 | 南昌大学 | A kind of method that anaerobic bacteria Inhibitors form Chinese Traditional Medicinal Herbs are screened based on ZnO nano probe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101923088B (en) | Gold nanorod immunoprobe, and preparation method and application thereof | |
| CN102262115B (en) | Electrochemical immunosensor for melamine content determination, and preparation method and application thereof | |
| CN107942069A (en) | A kind of NGAL latex immunoturbidimetries detection kit and preparation method thereof | |
| CN105717033B (en) | A kind of method of flow cytometer quantitative detection of protein concentration | |
| CN103217448B (en) | A kind of NMR food-borne pathogen rapid detection based on paramagnetic nano Fe probe | |
| CN108593619A (en) | The detection kit of heavy metal cadmium ion and its application | |
| CN108508213A (en) | The detection kit of heavy metal lead ion and its application | |
| CN105372427A (en) | Method for quickly detecting NMR food-borne pathogenic bacteria based on KMnF4 nanoprobe | |
| CN103207202B (en) | A kind of NMR food-borne pathogen rapid detection based on paramagnetic nano Fe-Ni alloy/C probe | |
| CN105352987A (en) | A KMnF4 nanoprobe-based NMR rapid detection method for food-borne allergens | |
| CN105424938A (en) | NMR virus rapid detection method based on KMnF4 nanoprobes | |
| CN103217449B (en) | A kind of NMR food-borne pathogen rapid detection based on paramagnetic nano-Fe-Ni alloy probe indirect enrichment | |
| CN105372277A (en) | CoFe2O4 nanoparticles based NMR method for rapid detection of food-borne pathogenic bacteria | |
| CN103175858B (en) | A kind of based on Fe3O4The NMR food-borne pathogen rapid detection of nano particle indirect enrichment | |
| CN103217451B (en) | A kind of NMR food-borne pathogen rapid detection based on paramagnetic nano nano-Fe-Ni-Co alloy | |
| CN103364428B (en) | A kind of based on γ-Fe2O3The method for quick of NMR nano-probe food-borne pathogens | |
| CN103207198A (en) | NMR detection method for food-borne pathogenic bacteria based on Fe3O4 nano-material | |
| CN103115934B (en) | A kind of based on Fe 3o 4the NMR food-borne pathogen rapid detection of@Au composite nanoparticle | |
| CN113125741A (en) | Procalcitonin detection reagent, kit, system and detection method | |
| CN105372279A (en) | CoFe2O4 nanoprobe based NMR method for rapid detection of virus | |
| CN103217450B (en) | A kind of NMR food-borne pathogen rapid detection based on paramagnetic nano-Fe-Ni-Co alloy probe indirect enrichment | |
| CN103353461B (en) | A kind of NMR food-borne pathogen rapid detection based on paramagnetic nano Ni-Co alloy probe indirect enrichment | |
| CN103217530B (en) | NMR food-borne pathogen rapid detection method based on paramagnetic nano-Fe-Co alloy probe indirect enrichment | |
| CN103091347A (en) | NMR (nuclear magnetic resonance) quick detection method for food-borne pathogenic bacteria based on gamma-Fe2O3 and Au composite nano-probe | |
| CN103207273A (en) | Paramagnetic nano Fe-Co alloy probe based quick detecting method for NMR (nuclear magnetic resonance) food-borne pathogenic bacteria |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160323 |