CN108872193B - A kind of body fluid testing device based on SERS technology - Google Patents

A kind of body fluid testing device based on SERS technology Download PDF

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CN108872193B
CN108872193B CN201810720967.5A CN201810720967A CN108872193B CN 108872193 B CN108872193 B CN 108872193B CN 201810720967 A CN201810720967 A CN 201810720967A CN 108872193 B CN108872193 B CN 108872193B
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sampling
sampler
capsule
checkbox
laser source
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CN108872193A (en
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李劲松
侯滨
蔡宏伟
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65Raman scattering
    • G01N21/658Raman scattering enhancement Raman, e.g. surface plasmons
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65Raman scattering
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/65Raman scattering
    • G01N2021/653Coherent methods [CARS]
    • G01N2021/655Stimulated Raman

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  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

The invention belongs to medical detection fields, are related to a kind of body fluid detection device based on Surface enhanced Raman spectroscopy detection technique.Including computer, detection box, detection card and sampler;The slot of installation detection card, laser source, optical splitter, optical filter is respectively arranged on detection box body, detection card includes accommodating cavity, and accommodating cavity lower surface is that SERS enhances substrate;The sampler is capillary needle sampler, including sampler shell and sampling bolt.Detachable and combined function realizes the plug-in combination of a variety of laser sources, spectrometer, optical filter.Sampler is capillary needle sampler, in sampling to the injury very little of body, and realizes minimally invasive sampling, and furthermore capillary needle sampler can be to avoid the impurity of sucking large volume when sampling liquid.

Description

A kind of body fluid testing device based on SERS technology
Technical field
The invention belongs to medical inspection fields, are related to a kind of body fluid testing device, and in particular to one kind is based on surface enhanced The body fluid testing device of Raman spectrum inspection technology.
Background technique
SERS spectra technology has the advantages that high inspection sensitivity and high specific, is widely used in biological tissue, cell And the research of biomolecule, show great application potential.Such as blood, saliva, urine etc..SERS spectra technology can be examined Test Peripheral Circulation tumour cell.2009, Liaocheng University compared diabetes patient and normal person using the analysis of SERS spectra technology The SERS spectra and type-II diabetes of serum and the SERS spectra of diabetic complication, discovery are comprehensive from different diabetes The patients serum SERS averaged spectrum of disease and type-II diabetes patient are closely similar, illustrate there is certain connection between these diseases System.SERS can examine drug and and protein-interacting in blood.Furthermore the SERS spectra quantitative testing of blood constituent content The quantitative measurment of analysis blood constituent can provide important information in the clinical diagnostic process of disease.SERS spectra technical application In the analytical control saliva of saliva contain a large amount of protein and body metabolism product, many diseases can by saliva at The analysis divided is diagnosed.The analytical control urinalysis that SERS spectra technology is applied to urine is called " the fluid work of kidney Inspection " assesses renal function by the product (such as urea, uric acid, kreatinin etc.) of organism metabolism in analysis urine.
200480041168.1 Intel company of application number has invented a kind of to be visited using Raman active or SERS activity Needle construction test organisms imitate the various methods of the analyte containing protein in the analyte such as body fluid in product.But it is only Being illustrated from the principle can provide a device that, there is no the specific structures of disclosed device.
Application number 201610317610.3 discloses a kind of based in Surface enhanced Raman spectroscopy technical checking human body fluid The method of drugs.By the pre-treatment to drugs in human body fluid, using self assembly gold nano sol material to urine, blood, Drugs in saliva are quickly examined, and the influence of other impurities is avoided, and are applicable in the inspection of drugs on site.The invention does not have Specific apparatus structure is provided, and its inspection is pre-processed, operated more complicated.
Current is generally used for laboratory stage using the progress body fluid inspection of SERS technology, main still for ready-made Body fluid carries out the inspection of various complexity, and the instrument needed is complex, it is also necessary to which people trained carries out professional operation, cannot Realize the application of clinical even family health care.
Summary of the invention
The present invention overcomes disadvantages described above to provide a kind of body fluid testing device based on SERS technology, which may be implemented pair The SERS of body fluid is examined, to examine the interested ingredient in body fluid.
A kind of body fluid testing device based on SERS technology, including computer, checkbox, check card and sampler;Its It is characterized in that being provided with controller and USB interface in the checkbox, examines and be respectively arranged with installation check card, laser on box body Source, optical splitter, optical filter slot, be wherein provided with hard contact 206,207 in laser source and the corresponding slot of optical splitter, swash Light source hard contact 206,207 corresponding with optical splitter is electrically connected with the controller;Computer passes through the control of USB interface and checkbox Device connection processed;Check card includes accommodating cavity and intubation, and accommodating cavity upper surface is vitreous silica light-transmitting opening, and accommodating cavity lower surface is SERS enhances substrate;The sampler is capillary needle sampler, including sampler shell and sampling bolt.
Checkbox includes the whole checkbox matrix in cuboid, and installation check card is provided on checkbox matrix, is swashed Light source, optical splitter, optical filter slot, wherein installation check card with installation laser source slot in the same of checkbox matrix The slot of side, installation optical splitter and optical filter is respectively positioned on the bottom of checkbox matrix, is provided with receiving control in checkbox matrix The cavity of device, controller are arranged in the cavity of the inside of checkbox matrix, and the cavity is corresponding with laser source and optical splitter to be inserted Slot has communicating passage, and for the connecting line connecting with hard contact to be arranged, the top of shell, USB is arranged in USB interface in channel The connection of Interface and Controler signal.
The optical channel of connection laser source, optical splitter and check card is provided in checkbox matrix, optical channel is provided with instead Mirror and semi-transparent semi-reflecting lens are penetrated, the light of laser source transmitting is reflected into semi-transparent semi-reflecting lens through reflecting mirror, reached after semi-transparent semi-reflecting lens Check card, the light reflected from check card inner surface are then passed through optical filter after semi-transparent semi-reflecting lens reflect and inject optical splitter.
After the light that laser source emits reaches SERS enhancing substrate, since there are SERS to enhance substrate, it can make in detection card The Raman scattering signal of sample to be tested be greatly enhanced, the Raman diffused light of enhancing passes through after semi-transparent semi-reflecting lens reflect Optical filter filters out excitation wavelength, reaches optical splitter.Optical splitter is sent data to after the light of collection is carried out spectrum analysis Controller, data are uploaded to computer later.Computer shows the spectrum that optical splitter is analyzed on a display screen, and by the light Spectrum is checked with spectrum known in database, so that it may obtain the ingredient and content of sample to be tested.
The laser source is one of 632nm laser source, 514nm laser source, 1064nm laser source;Optical splitter is grating beam splitting Device or prismatic decomposition device.
Check card includes the whole main body in card-like, and intubation is stretched out from the side of main body, body thickness 3-5mm, side A length of 10-30mm, main body are made of the JGS1 fused silica material of 0.8-1mm thickness, and inside has accommodating cavity, the accommodating cavity Bottom surface is that SERS enhances substrate.
The surface enhanced Raman substrate is the nanometer gold substrate of magnetron sputtering, with a thickness of 100 microns.
The surface enhanced Raman substrate is the nanometer gold substrate of the pyramid structure of using plasma etching preparation, gold Word tower spacing is 100-300nm, and pyramid height is 50-100nm.
The surface enhanced Raman substrate is the gold nanosphere using coupling agent connection on a quartz substrate, gold nanosphere Diameter is 50-200nm.
Sampler includes in the both ends open sampler shell of cylindrical body, pressure handle, sampling bolt;The one of the sampler shell End opening, the flange that outside is provided with convenient for finger grip, one end opposite with flange is close using dustproof membrane on sampler shell Envelope, dustproof membrane can be pierced through by capillary sampling probe group;Sampler shell is internally provided with pressure handle, sampling bolt setting in flange side In sampler shell, pressing pressure handle can push sampling bolt;
Sampling bolt includes sampling capsule and capillary sampling probe group, and sampling capsule is integrally cylindrical, samples capsule close to dustproof membrane one Side is provided with capillary sampling probe group, and the side of sampling capsule installation capillary sampling probe group is made of non-elastic material, and sampling capsule is except peace It fills and is made outside the side of capillary sampling probe group of elastic material;Capillary sampling probe group is multiple empty micropins, number 50-100 It is a;The inside of sampler shell is provided with protrusion close to dustproof membrane side, and protrusion is for stopping sampling capsule to install capillary sampling probe The side of group prevents sampling capsule from deviating from from sampler shell when moving, while will not influence capillary sampling probe group from dust-proof Film pierces out;
Pressure handle is pressed when sampling, pressure handle pushes sampling capsule to move downward, and when sampling capsule and projection contacts, sampling capsule cannot Continue to move, the tip of capillary sampling probe group is pierced through dustproof membrane and pierced out from sampler shell at this time, continues to press pressure handle, pressure Handle starts to squeeze sampling capsule, makes to sample bag pressure contracting, will sample intracapsular air and be discharged by sampling probe;Under pressure handle cannot continue Air is emptied when pressure, and capillary sampling probe group is made to be pierced into tissue or sample containing body fluid;Loosen pressure handle after piercing, samples capsule in bullet Property the lower expansion of effect, form negative pressure, liquid made to flow into sampling capsule by the pin hole of sampling probe;
The sampling probe is capillary sampling probe, and each a height of 2-5mm of sampling probe, each sampling probe diameter is 50-500 μm.
It is provided with springhole at the top of sampling capsule, springhole can be opened and closed, and intubation can be inserted in the springhole after opening, be made Sample liquids flow into check card by intubation.
The object that device is examined is blood, urine or sweat.
The invention has the benefit that
Raman verifying attachment of the invention has the function of detachable and combines, may be implemented a variety of laser sources, spectrometer, The plug-in of optical filter combines, to expand the checking function of instrument;There is plug-in accessory of the invention itself identification to compile Code, computer are provided with corresponding identification function, can examine whether the accessory of insertion is required accessory, improve the accurate of inspection Property;Check card provided by the invention designs for plug-in, and inside can be designed to the Raman enhancing substrate of different structure, improves The range of inspection;Sampler is capillary needle sampler, in sampling to the injury very little of body, and realizes minimally invasive sampling, this Outer capillary needle sampler can be to avoid the impurity of sucking large volume when sampling liquid.
Detailed description of the invention
The overall structure diagram of Fig. 1 apparatus of the present invention;
The check card and sampling bolt schematic diagram of Fig. 2 apparatus of the present invention;
Sampler Fig. 3 of the invention samples schematic diagram.
Specific embodiment
It is specifically described below with reference to the structure and usage of Fig. 1-3 pairs of present apparatus.
Embodiment 1
The present invention provides a kind of body fluid testing device based on SERS technology, including computer 1, checkbox 2, check card 3 And sampler 4;It is characterized in that being provided with controller 201 and USB interface 202 in the checkbox 2, divide on 2 body of checkbox It is not provided with the slot of installation check card 3, laser source 203, optical splitter 204, optical filter 205, wherein laser source 203 and optical splitter It is provided with hard contact 206,207 in 204 corresponding slots, the hard contact 206 corresponding with optical splitter 204 of laser source 203, 207 are electrically connected with controller 201;Computer 1 is connect by USB interface 202 with the controller 201 of checkbox 2;Check card 3 wraps Accommodating cavity 301 and intubation 302 are included, 301 upper surface of accommodating cavity is vitreous silica light-transmitting opening, and 301 lower surface of accommodating cavity is SERS increasing Strong basis bottom 303;The sampler 4 is capillary needle sampler, including sampler shell 401 and sampling bolt.
Checkbox 2 includes whole be in cuboid checkbox matrix, be provided on checkbox matrix installation check card 3, Laser source 203, optical splitter 204, optical filter 205 slot, wherein installation check card 3 with installation laser source 203 slot examining Test the same side of box matrix, the slot of installation optical splitter 204 and optical filter 205 is respectively positioned on the bottom of checkbox matrix, checkbox The cavity for accommodating controller 201 is provided in matrix, controller 201 is arranged in the cavity of the inside of checkbox matrix, the sky Chamber slot corresponding with laser source 203 and optical splitter 204 has communicating passage, and channel is for being arranged and hard contact 206,207 The top of shell is arranged in the connecting line of connection, USB interface 202, and USB interface 202 is connect with 201 signal of controller.
The optical channel of connection laser source 203, optical splitter 204 and check card 3 is provided in checkbox matrix, optical channel is set It is equipped with reflecting mirror 208 and semi-transparent semi-reflecting lens 209, the light that laser source 203 emits is reflected through reflecting mirror 208 into semi-transparent semi-reflecting lens 209, After semi-transparent semi-reflecting lens 209 reach check card 3, from 3 inner surface of check card reflect light through semi-transparent semi-reflecting lens 209 reflection after again Optical splitter 204 is injected across optical filter 205.
After the light that laser source 203 emits reaches SERS enhancing substrate, since there are SERS to enhance substrate, detection can be made to block The Raman scattering signal of interior sample to be tested is greatly enhanced, and the Raman diffused light of enhancing is worn after semi-transparent semi-reflecting lens reflect It crosses optical filter and filters out excitation wavelength, reach optical splitter.Optical splitter will send data after the light progress spectrum analysis of collection To controller, data are uploaded to computer later.Computer shows the spectrum that optical splitter is analyzed on a display screen, and should Spectrum is checked with spectrum known in database, so that it may obtain the ingredient and content of sample to be tested.
The laser source 203 is one of 632nm laser source, 514nm laser source, 1064nm laser source;Optical splitter 204 is light Grid optical splitter or prismatic decomposition device.
Check card 3 includes the whole main body in card-like, and intubation 302 is stretched out from the side of main body, body thickness 3- 5mm, side length 10-30mm, main body are made of the JGS1 fused silica material of 0.8-1mm thickness, and inside has accommodating cavity 301, institute The bottom surface for stating accommodating cavity 301 is that SERS enhances substrate 303.
The surface enhanced Raman substrate is the nanometer gold substrate of magnetron sputtering, with a thickness of 100 microns.
The surface enhanced Raman substrate is the nanometer gold substrate of the pyramid structure of using plasma etching preparation, gold Word tower spacing is 100-300nm, and pyramid height is 50-100nm.
The surface enhanced Raman substrate is the gold nanosphere using coupling agent connection on a quartz substrate, gold nanosphere Diameter is 50-200nm.
Sampler 4 includes in the both ends open sampler shell 401 of cylindrical body, pressure handle 404, sampling bolt;The sampler Open at one end, the flange 402 that outside is provided with convenient for finger grip of shell 401, on sampler shell 401 with 402 phase of flange Anti- one end is sealed using dustproof membrane 403, and dustproof membrane 403 can be pierced through by capillary sampling probe group (406);Sampler shell 401 It is internally provided with pressure handle 404 in flange side, sampling bolt is arranged in sampler shell 401, and pressing pressure handle 404, which can push, to be taken Sample bolt;
Sampling bolt includes sampling capsule 405 and capillary sampling probe group 406, and sampling capsule 405 is whole cylindrical, samples capsule 405 403 side of dustproof membrane is provided with capillary sampling probe group 406, sampling capsule 405 installs the side of capillary sampling probe group 406 by non- Elastic material is made, and sampling capsule 405 is made in addition to the side of installation capillary sampling probe group 406 of elastic material;Capillary sampling probe Group 406 is multiple empty micropins, and number is 50-100;The inside of sampler shell 401 is provided with close to 403 side of dustproof membrane Protrusion 407, side of the protrusion 407 for stopping to sample the installation capillary sampling probe group 406 of capsule 405, prevents sampling capsule 405 in movement When deviate from from sampler shell 401, while will not influence capillary sampling probe group 406 and being pierced out from dustproof membrane;
Pressure handle 404 is pressed when sampling, pressure handle 404 pushes sampling capsule 405 to move downward, when sampling capsule 405 and protrusion 407 connect When touching, sampling capsule 405 cannot continue to move, and the tip of capillary sampling probe group 406 pierces through dustproof membrane and from sampler shell at this time In pierce out, continue press pressure handle 404, pressure handle 404 start squeeze sampling capsule 405, make sample capsule 405 compress, will sampling capsule 405 in Air pass through sampling probe be discharged;Air is emptied when pressure handle 404 cannot continue and push, contains the piercing of capillary sampling probe group 406 There are the tissue or sample 5 of body fluid;Loosen pressure handle 404 after piercing, sampling capsule 405 expands under elastic reaction, forms negative pressure, make liquid Body flows into sampling capsule 405 by the pin hole of sampling probe;
The sampling probe is capillary sampling probe, and each a height of 2-5mm of sampling probe, each sampling probe diameter is 50-500 μm.
The top of sampling capsule 405 is provided with springhole 408, and springhole 408 can be opened and closed, and the springhole 408 after opening can With insertion intubation 302, sample liquids is made to flow into check card 3 by intubation 302.
The object that device is examined is blood, urine or sweat.
The sampler shell is two sections for can separating up and down, so set, can guarantee be sampled with first The shell of sampler has enough intensity when extruding, furthermore when bolt taking-up will be sampled by needing, sampler shell can be beaten It opens, so that sampling bolt be taken out from shell.
Various plug accessories of the invention, such as laser source and optical splitter have different codings, each different accessory With respective unique encodings, upon connection, computer obtains this coding by controller to realize the identification to accessory. It is provided with specific inspection software in computer, the inspection to Raman spectrum may be implemented, and prestore various marks in computer The inspection database of quasi- sample can be supplied to user and compare.
The above, only the preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, it is any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (9)

1. a kind of body fluid testing device based on SERS technology, including computer (1), checkbox (2), check card (3) and take Sample device (4);It is characterized in that being provided with controller (201) and USB interface (202), checkbox (2) body in the checkbox (2) On be respectively arranged with installation check card (3), laser source (203), optical splitter (204), optical filter (205) slot, wherein laser Hard contact (206,207), laser source (203) and optical splitter are provided in source (203) and the corresponding slot of optical splitter (204) (204) corresponding hard contact (206,207) is electrically connected with controller (201);Computer (1) passes through USB interface (202) and inspection Test controller (201) connection of box (2);Check card (3) includes accommodating cavity (301) and intubation (302), table on accommodating cavity (301) Face is vitreous silica light-transmitting opening, and accommodating cavity (301) lower surface is that SERS enhances substrate (303);The sampler (4) is capillary needle Sampler, including sampler shell (401) and sampling bolt;
Sampler (4) includes in the both ends open sampler shell (401) of cylindrical body, pressure handle (404), sampling bolt;The sampling Open at one end, the flange (402) that outside is provided with convenient for finger grip of device shell (401), on sampler shell (401) with it is convex The opposite one end of edge (402) is sealed using dustproof membrane (403), and dustproof membrane (403) can be pierced through by capillary sampling probe group (406); Sampler shell (401) is internally provided with pressure handle (404) in flange side, and sampling bolt setting is pressed in sampler shell (401) Pressure pressure handle (404) can push sampling bolt;
Sampling bolt includes sampling capsule (405) and capillary sampling probe group (406), and sampling capsule (405) is whole cylindrical, samples capsule (405) dustproof membrane (403) side is provided with capillary sampling probe group (406), capillary sampling probe group is installed in sampling capsule (405) (406) side is made of non-elastic material, and sampling capsule (405) is in addition to the side of installation capillary sampling probe group (406) by elasticity Material is made;Capillary sampling probe group (406) is multiple empty micropins, and number is 50-100;The inside of sampler shell (401) It is provided with raised (407) close to dustproof membrane (403) side, raised (407) are for stopping sampling capsule (405) to install capillary sampling probe The side of group (406) prevents sampling capsule (405) abjection from sampler shell (401) when moving, while will not influence capillary Sampling probe group (406) is pierced out from dustproof membrane;
Pressure handle (404) are pressed when sampling, pressure handle (404) pushes sampling capsule (405) to move downward, when sampling capsule (405) and protrusion (407) contact when, sampling capsule (405) cannot continue to move, at this time capillary sampling probe group (406) tip pierce through dustproof membrane and from It is pierced out in sampler shell, continues to press pressure handle (404), pressure handle (404) starts to squeeze sampling capsule (405), makes to sample capsule (405) Compression will sample the air in capsule (405) and is discharged by sampling probe;Air is emptied when pressure handle (404) cannot continue and push, is made Capillary sampling probe group (406) is pierced into the tissue containing body fluid or sample (5);Loosen after piercing pressure handle (404), samples capsule (405) It is expanded under elastic reaction, forms negative pressure, liquid is made to flow into sampling capsule (405) by the pin hole of sampling probe;
The sampling probe is capillary sampling probe, and each a height of 2-5mm of sampling probe, each sampling probe diameter is 50-500 μm.
2. the body fluid testing device according to claim 1 based on SERS technology, it is characterised in that checkbox (2) includes whole Body is in the checkbox matrix of cuboid, and installation check card (3), laser source (203), optical splitter are provided on checkbox matrix (204), the slot of optical filter (205), wherein the slot of installation check card (3) and installation laser source (203) is in checkbox matrix The same side, the slot of installation optical splitter (204) and optical filter (205) is respectively positioned on the bottom of checkbox matrix, checkbox matrix Inside it is provided with the cavity for accommodating controller (201), in the cavity for the inside that checkbox matrix is arranged in controller (201), the sky Chamber slot corresponding with laser source (203) and optical splitter (204) has communicating passage, and channel is for setting and hard contact (206,207) connecting line connected, USB interface (202) are arranged in the top of shell, USB interface (202) and controller (201) Signal connection;
The optical channel of connection laser source (203), optical splitter (204) and check card (3), optical channel are provided in checkbox matrix It is provided with reflecting mirror (208) and semi-transparent semi-reflecting lens (209), the light of laser source (203) transmitting is reflected through reflecting mirror (208) into semi-transparent Semi-reflective mirror (209) passes through semi-transparent semi-reflecting lens (209) and reaches check card (3) afterwards, and the light reflected from check card (3) inner surface is through half Optical filter (205), which are then passed through, after saturating semi-reflective mirror (209) reflection injects optical splitter (204).
3. the body fluid testing device according to claim 2 based on SERS technology, it is characterised in that the laser source (203) For one of 632nm laser source, 514nm laser source, 1064nm laser source;Optical splitter (204) is grating beam splitting device or prismatic decomposition Device.
4. the body fluid testing device according to claim 1 based on SERS technology, it is characterised in that check card (3) includes whole Body is in the main body of card-like, and intubation (302) is stretched out from the side of main body, body thickness 3-5mm, side length 10-30mm, main body It is made of the JGS1 fused silica material of 0.8-1mm thickness, inside has accommodating cavity (301), and the bottom surface of the accommodating cavity (301) is SERS enhances substrate (303).
5. the body fluid testing device according to claim 4 based on SERS technology, it is characterised in that the SERS enhances base Bottom is the nanometer gold substrate of magnetron sputtering, with a thickness of 100 microns.
6. the body fluid testing device according to claim 4 based on SERS technology, it is characterised in that the SERS enhances base Bottom is the nanometer gold substrate of the pyramid structure of using plasma etching preparation, and pyramid spacing is 100-300nm, pyramid Height is 50-100nm.
7. the body fluid testing device according to claim 4 based on SERS technology, it is characterised in that the SERS enhances base Bottom is the gold nanosphere using coupling agent connection on a quartz substrate, and the diameter of gold nanosphere is 50-200nm.
8. the body fluid testing device according to claim 1 based on SERS technology, it is characterised in that the top of sampling capsule (405) Portion is provided with springhole (408), and springhole (408) can be opened and closed, and intubation (302) can be inserted in the springhole (408) after opening, Sample liquids are made to flow into check card (3) by intubation (302).
9. the body fluid testing device according to claim 1 based on SERS technology, it is characterised in that the object that device is examined It is blood, urine or sweat.
CN201810720967.5A 2018-07-04 2018-07-04 A kind of body fluid testing device based on SERS technology Active CN108872193B (en)

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CN110836971A (en) * 2019-11-21 2020-02-25 电子科技大学 Nano marker for blood glucose detection, dynamic near infrared spectrum nondestructive blood glucose meter based on nano marker and preparation method of dynamic near infrared spectrum nondestructive blood glucose meter

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CN104076023B (en) * 2014-07-22 2017-01-18 中国人民解放军第三军医大学第一附属医院 Body fluid Raman spectrum testing device
CN204269419U (en) * 2014-10-24 2015-04-15 深圳市希莱恒医用电子有限公司 A kind of sampler
CN106153537A (en) * 2015-04-16 2016-11-23 北京医康世纪科技有限公司 The optical scanner of a kind of colloid gold immune quantitative analysis instrument and application thereof
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