WO2011065751A2 - 다공성 필름이 부착되어 있는 멤브레인 바이오센서 및 이를 이용한 면역반응 또는 효소반응 측정방법 - Google Patents
다공성 필름이 부착되어 있는 멤브레인 바이오센서 및 이를 이용한 면역반응 또는 효소반응 측정방법 Download PDFInfo
- Publication number
- WO2011065751A2 WO2011065751A2 PCT/KR2010/008363 KR2010008363W WO2011065751A2 WO 2011065751 A2 WO2011065751 A2 WO 2011065751A2 KR 2010008363 W KR2010008363 W KR 2010008363W WO 2011065751 A2 WO2011065751 A2 WO 2011065751A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- membrane
- biosensor
- sample
- porous film
- membrane biosensor
- 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.)
- Ceased
Links
Images
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
- G01N33/536—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase
- G01N33/537—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with separation of immune complex from unbound antigen or antibody
- G01N33/538—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with separation of immune complex from unbound antigen or antibody by sorbent column, particles or resin strip, i.e. sorbent materials
-
- 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
Definitions
- the present invention relates to a membrane sensor and a method for measuring an immune response or an enzyme reaction using the same, and more particularly, to a membrane sensor for rapidly measuring an antigen-antibody response and a method for measuring an immune response or an enzyme reaction using the same.
- LFA Lateral flow assay
- the antibody immobilized on the membrane and the antibody immobilized on the gold nanoparticles, which can selectively bind to the sample material, are configured to be bonded in a sandwich form to the sample material.
- the absorption pad is made of a material that can absorb a liquid sample well.
- the sensitivity that can be measured by the conventional LFA method is about 1 ng / mL of the antigenic protein, which is difficult to measure in the case of a sample requiring higher sensitivity.
- Membrane strip biosensor system for field diagnosis as a membrane type sensor Kerrea Patent No. 599420; Composite sensor membrane (Japanese Patent Laid-Open No. 2006-507511); Electrochemical membrane strip biosensor (Korean Patent 348351); Method for Determining Concentration of Multiple Analytes in a Single Fluid Sample (US Pat. No. 7494818); A sensor having a membrane and a method of manufacturing the same (Korean Patent No. 591390); Various forms such as a Test Device for Simultaneous Measurement of Multiple Analytes in a Single Sample (US Patent Publication No. 2005-214161) have been disclosed.
- the sensitivity of the sensor is improved by adjusting the sensitivity of the sensor using a porous film, the multi-component material is detected at the same time, and the sample usage time and the analyte detection time are measured by vertical injection of the sample. No technique has been proposed to reduce.
- the present inventors made an effort to manufacture a highly sensitive membrane biosensor using techniques that were not implemented in the prior art. As a result, after fabricating a membrane biosensor in which a porous film is bonded to the membrane to which the receptor is fixed, the sample is used. In the case of analyzing, it was confirmed that the sample analysis is possible in a short time even with a small amount of samples, and thus, the present invention was completed.
- An object of the present invention is to provide a highly sensitive membrane biosensor capable of simultaneously detecting several kinds of immune or enzyme reactions.
- the present invention is to provide a method for measuring an immune response or enzyme reaction using the high sensitivity membrane biosensor.
- the present invention provides a membrane biosensor, characterized in that a porous film having a plurality of holes on the membrane is attached, the receptor is fixed on the membrane corresponding to each hole position.
- the present invention is also characterized in that a porous film having a plurality of pores is attached to the membrane, a receptor is fixed on the membrane corresponding to each pore position, and a conjugate pad is formed on the porous film.
- a membrane biosensor Provided is a membrane biosensor.
- the present invention also provides a method for measuring immune response comprising using a membrane biosensor, injecting a sample vertically into the membrane biosensor.
- the present invention also provides a method for measuring enzymatic reaction comprising using the membrane biosensor, injecting a sample vertically into the membrane biosensor.
- the present invention it is possible to control the sensitivity of the membrane biosensor by adjusting the pore size of the porous film, to measure the analyte with high sensitivity using only a small amount of sample, and attach various kinds of receptors to the membrane sensor. It is possible to measure various types of analytes simultaneously.
- FIG. 1 is an example of a membrane biosensor according to the present invention.
- FIG. 2 is another example of a membrane biosensor according to the present invention.
- FIG. 3 is a photograph showing the results of analysis by injecting a sample after fixing three different receptors to the membrane biosensor according to the present invention.
- Figure 4 is a photograph showing the results of detecting the CRP using the membrane biosensor according to the present invention (Control: anti-mouse IgG fixation, Test: anti-CRP polyclonal antibody fixation).
- Figure 5 is a graph showing the results of measuring the absorbance of the concentration and time of the CRP using the membrane biosensor according to the present invention.
- FIG. 6 is a photograph showing the results of detecting the CRP using the LFA biosensor as a comparative example.
- FIG. 7 is a graph showing a result of measuring the absorbance according to the concentration of CRP using the membrane biosensor and LFA biosensor according to the present invention (FTH: membrane biosensor according to the present invention, LFA: LFA biosensor).
- Figure 8 is a photograph showing the results of detecting the CRP by enzyme-chemiluminescence reaction using the membrane biosensor according to the present invention (Control: anti-mouse IgG fixation, Test: anti-CRP polyclonal antibody fixation).
- FIG. 9 is a graph showing the results of measuring the concentration of the CRP and the luminescence over time by enzyme-chemiluminescence reaction using the membrane biosensor according to the present invention.
- FIG. 10 is a photograph showing the result of detecting D-glucose by enzyme-chemiluminescence reaction using the membrane biosensor according to the present invention (Control: fix peroxidase only, Test: fix glucose oxidase and peroxidase).
- 11 is a graph showing the results of measuring the luminescence according to the concentration of D-glucose by enzyme-chemiluminescence reaction using the membrane biosensor according to the present invention.
- FIG. 12 is a photograph showing the result of measuring the total cholesterol of the control serum by the enzyme-color reaction using the membrane biosensor according to the present invention.
- T moiety in which cTnI antibody is immobilized as a receptor
- the present invention relates to a membrane biosensor characterized in that a porous film is attached to a membrane on which a receptor is fixed (FIG. 1).
- the present invention relates to a membrane biosensor, wherein a porous film is attached to a membrane on which a receptor is fixed, and a conjugate pad is formed on the porous film (FIG. 2).
- the present invention by manufacturing a biosensor by attaching a porous film to the membrane, it is possible to adjust the sensitivity of the sensor according to the pore size of the porous film, and to measure the analyte of the multi-component according to the number of pores of the porous film It is characterized by.
- the membrane biosensor according to the present invention uses a Flow Through Hole (FTH) method to drop the sample vertically when measuring the immune response or enzyme reaction, so that the reaction can be measured in a short time with a small amount of sample.
- FTH Flow Through Hole
- the term “porous” means having a plurality of holes
- “porous film” means a film in which a plurality of holes are formed.
- hole refers to a hole that is large enough to serve as a reaction well so that the sample and the receptor can react in the hole.
- the membrane may use a membrane capable of absorbing the sample solution, and the specific type of membrane may be appropriately selected by those skilled in the art.
- the membrane may be characterized in that the nitrocellulose membrane (nitrocellulose membrane).
- nitrocellulose membrane nitrocellulose membrane
- Dropping a sample, such as a protein, onto the nitrocellulose membrane causes the protein to be immobilized without large diffusion at the initial distant location. Therefore, when a sample is injected into the pores of the porous film bonded on the nitrocellulose membrane, a selective reaction between the receptor and the sample occurs at the membrane below each hole to measure the signal.
- the method of immobilizing the receptor on the membrane can use both a physical adsorption method and a chemical method, and the specific immobilization method can be appropriately selected by those skilled in the art.
- the size of the hole of the porous film may be characterized in that 10 ⁇ m ⁇ 5000 ⁇ m, but is not limited thereto, 10 ⁇ 4000 ⁇ m, 10 ⁇ 3000 ⁇ m, 10 ⁇ 2000 ⁇ m, 10 ⁇ 1000 ⁇ m, 50-5000 ⁇ m, 50-4000 ⁇ m, 50-3000 ⁇ m, 50-2000 ⁇ m, 50-1000 ⁇ m, 100-5000 ⁇ m, 100-4000 ⁇ m, 100-3000 ⁇ m, 100-2000 ⁇ m, 100-1000 200 ⁇ m, 200 ⁇ m to 5000 ⁇ m, 200 ⁇ m to 4000 ⁇ m, 200 ⁇ m to 3000 ⁇ m, 200 ⁇ m to 2000 ⁇ m, or 200 ⁇ m to 1000 ⁇ m.
- the porous film may be made of a material that is easy to hole processing, for example, may be made of a material such as polymer, glass, elastomer, silicon, but is not limited thereto.
- a material such as polymer, glass, elastomer, silicon, but is not limited thereto.
- the porous film may have a thickness of 0.01 to 1 mm, 0.01 to 0.8 mm, 0.01 to 0.6 mm, 0.01 to 0.4 mm, 0.01 to 0.2 mm, 0.05 to 1 mm, 0.05 to 0.8 mm , 0.05 to 0.6 mm, 0.05 to 0.4 mm, or 0.05 to 0.2 mm, but is not limited thereto.
- the porous film may be an adhesive film having an adhesive applied to the surface in contact with the membrane.
- the porous film can be attached simply by cutting the porous film to an appropriate size and then covering the membrane.
- the present invention is not limited thereto, and various methods for attaching the porous film and the membrane are well known in the art and may be appropriately selected by those skilled in the art.
- the receptor is preferably reacted selectively with the analyte, and specifically, antibodies, antigens, enzymes, peptides, proteins, DNA, RNA, peptide nucleic acids (PNA) and aptamers (aptamers). It may be characterized in that selected from the group consisting of.
- selective refers to a property to which two specific materials specifically bind to each other, and may be used interchangeably with the term "specific”.
- the sample used in the membrane biosensor may further comprise a conjugate of a substance and a signal generating material that selectively bind to the analyte.
- the sample used in the membrane biosensor according to the present invention may be, for example, any sample with or without an analyte, and the sample with or without such an analyte is selective for the analyte.
- the sample may be a mixture of a conjugate of a substance and a signal generating substance that bind to each other.
- a conjugate of a substance selectively binding to an analyte and a signal generating substance may be injected into a membrane biosensor after injection of a sample separately from the sample, or applied to a conjugate pad or a sample pad and then dried.
- the "substance that selectively binds to the analyte” is a substance that specifically binds to the analyte, for example antibodies, antigens, enzymes, peptides, proteins, DNA, RNA, peptide nucleic acids (PNA) and It may be selected from the group consisting of aptamers.
- the "material selectively binding to the analyte” may be the same material as the receptor fixed to the membrane of the biosensor, or may be a different material from the receptor.
- the signal generating material may be a metal nanoparticle, a quantum dot nanoparticle, a magnetic nanoparticle, an enzyme, an enzyme substrate, an enzymatic reaction generating material, an absorbing material, a fluorescent material or a luminescent material.
- a metal nanoparticle a quantum dot nanoparticle, a magnetic nanoparticle, an enzyme, an enzyme substrate, an enzymatic reaction generating material, an absorbing material, a fluorescent material or a luminescent material.
- the analyte may be detected through the color change of the metal nanoparticle by a selective reaction between the receptor and the analyte, and the analyte selectively bound to the receptor on the membrane.
- the analyte can be quantitatively analyzed by measuring the absorbance and electrical conductivity of the conjugate of the metal nanoparticles.
- metal nanoparticles may be, for example, gold nanoparticles, silver nanoparticles, copper nanoparticles, and the like, but are not limited thereto.
- the analyte may be detected through fluorescence of the quantum dot nanoparticle by a selective reaction between the receptor and the analyte.
- the analyte may be detected through a change in the magnetic field caused by the selective reaction between the receptor and the analyte.
- a redox reaction is performed by reacting the analyte or receptor with the enzyme, enzyme substrate, or enzyme reaction product by a selective reaction between a receptor and an analyte. Enzymatic reactions such as, etc. may be caused, and the analyte may be detected by measuring absorption, fluorescence, and luminescence of the product by the enzyme reaction.
- enzymes may be, for example, but not limited to, glucose oxidase, glucose dehydrogenase, alkaline phosphatase, peroxidase, and the like
- the enzyme substrate may be, for example, but not limited to, glucose, hydrogen peroxide, and the like.
- the signal generating material a light absorbing material, a fluorescent material, or a light emitting material known in the art may be used, and a specific kind thereof may be appropriately selected by those skilled in the art. According to one embodiment of the present invention, luminol may be used, but is not limited thereto.
- an antibody selective to the protein is immobilized on the membrane as a receptor
- a sample may use a mixture of the protein antigen and an antibody-gold nanoparticle conjugate selective to the protein antigen.
- the antibody of the conjugate and the antibody immobilized on the membrane selectively bind to the protein antigen, which is an analyte, respectively, and the sandwich of the antibody-protein antigen-conjugate of the antibody-protein antigen-conjugate immobilized on the membrane Gold nanoparticles are coupled to the nanoparticles, thereby detecting the analyte due to the color change of the gold nanoparticles.
- different receptors are fixed for each hole of the porous film, different analytes can be detected for each hole, so that the analyte of multiple components can be measured according to the number of holes.
- a conjugate pad is formed on the porous film, and the conjugate pad includes a signal generating material;
- the conjugate may be dried after being coated with a conjugate of a substance and a signal generating substance that selectively bind to the analyte.
- the receptor reacts with the signaling material on a membrane together with a receptor.
- the analyte may be measured as a signal of a signal generating agent by an enzyme reaction.
- the conjugate pad is dried after being coated with a conjugate of a substance and a signal generating substance that selectively binds the analyte to the conjugate pad, when only the analyte is dropped vertically on the membrane sensor, the "receptor-analyte-conjugate pad is applied.”
- the analyte is measured by the signal of the signal generating material by the selective reaction between the receptor and the analyte, which is combined in the order of "conjugate of a substance and a signal generating material selectively binding to the analyte applied and dried on the target material.” can do.
- the conjugate pad may be used as long as the conjugate pad is wetted with a liquid after the conjugate pad is applied and dried, and the conjugate pad is a substance falling easily from the conjugate pad, and any conjugate pad generally used in an LFA system. Can be used.
- a sample pad may be formed on the bonded pad.
- the sample pad filters out foreign substances in the analyte, which enables more accurate measurement than the sensor.
- the sample pad serves to filter out blood cells or platelets contained in the blood (FIG. 2).
- the sample pad can use all the sample pads used in the LFA system.
- the sample pad includes a signal generating material;
- the conjugate may be dried after being coated with a conjugate of a substance and a signal generating substance that selectively bind to the analyte.
- the membrane biosensor may be characterized by sandwiching the membrane to improve the flow of fluid between the conjugate pad and the porous film.
- a screen mesh Zonyl FSN 100, SEFAR
- a vivid membrane Pall, Vivid Plasma Separation-GR
- the membrane biosensor may be characterized by partitioning the membrane into an area including each hole of the porous film. That is, the membrane may be partitioned so that one membrane region includes one hole so as not to interfere with each other in the flow of the sample flowing under each hole of the porous film.
- the partitioning of the regions allows separation of the regions of the membrane under each of the pores of the porous film from each other, so that samples flowing under each of the pores do not affect each other, thereby increasing the reproducibility of the measurement.
- the method of partitioning a region in the membrane may be used by any method known in the art and may be appropriately selected by those skilled in the art.
- a laser processor may be used to partition the area of the membrane.
- the present invention relates to a method for measuring immune response, comprising using a membrane biosensor and vertically injecting a sample into the membrane biosensor.
- the present invention relates to a method for measuring enzyme reaction, comprising using a membrane biosensor and vertically injecting a sample into the membrane biosensor.
- glucose oxidase and peroxidase are fixed to the membrane under the porous film as a receptor, and a conjugate pad dried by applying a chromogenic substrate of peroxidase (for example, luminol) is applied.
- a chromogenic substrate of peroxidase for example, luminol
- the membrane biosensor by injecting a sample vertically into the membrane biosensor, not only can the analyte be measured with high sensitivity using a small amount of sample but also the analyte can be detected in a short time. Do.
- the membrane biosensor may be characterized in that a different type of receptor is fixed to each hole.
- a different type of receptor is fixed to each hole.
- Nitrocellulose membranes (Millipore, 180 sec Nitrocellulose) were cut into squares approximately 2.5 cm in length and width. Thereafter, a 0.1 mm thick polyacrylic double-sided tape was cut into squares of about 1 cm in width and length, and three holes of about 0.4 mm in diameter were formed to form a hole to prepare a porous film. Attached to.
- CTnI antibody anti-troponin I polyclonal antibody, Hytest, FIN
- anti-mouse IgG anti-mouse IgG
- FIG. 3 is a magnified image of the sample injection surface (a), the opposite surface of the sample injection (b), and the opposite surface of the sample injection (c) measured 3 minutes after the sample is injected, and B (a portion where the BSA is fixed as a receptor).
- B a portion where the BSA is fixed as a receptor
- C where the anti-mouse IgG is fixed as a receptor
- T where the cTnI antibody polyclonal antibody is immobilized as a receptor increases as cTnI concentration increases.
- 0.1 mL of 0.1 M boric acid buffer pH 8.5 was added to 1 mL of gold nanoparticle colloid solution (20 nm, BBInternational, GB), and 10 ⁇ l of 1 mg / mL anti-CRP antibody (Abcam) was added for 30 minutes. I was. After the reaction, 1% (w / v) of BSA (protease free Bovine serum albumin, Fitzerald) dissolved in phosphate buffered saline (PBS, Gibco, USA) was added and reacted at 4 ° C. for 60 minutes. After the reaction, centrifuged at 10,000 rpm and 4 ° C.
- BSA prote free Bovine serum albumin
- Nitrocellulose membrane (Millipore, 240 sec Nitrocellulose) was cut to a size of about 15 ⁇ 15mm, and a laser-shaped wire was drawn on the membrane.
- a 0.1 mm thick polyacrylic double-sided adhesive tape was cut to a size of 10 ⁇ 10 mm, and a film was prepared to form two holes by drilling two holes of 0.5 mm size left and right, and then attached to the membrane. In this case, the two holes of the adhesive were arranged to each of the left and right in the shape of a worker engraved on the membrane. The reason for doing this is to ensure that each flow does not affect each other as the liquid sample flows through the two holes.
- the sensor of the present invention has a wider measurable range compared to the measurement area of a general LFA sensor. These results are a characteristic of the sensor of the present invention can obtain a stable measurement results in a short time, there is an advantage that has a wider measurement range compared to the conventional sensor.
- Gold nanoparticle-antibody conjugate synthesis and conjugate pads were prepared in the same manner as in Example 2-2, Example 2 above.
- the nitrocellulose membrane (Millipore, 180 sec Nitrocellulose) was cut into 25 mm x 300 mm and attached to an adhesive 300 mm x 60 mm plastic card (Millipore).
- a 1 mg / ml anti-mouse IgG (sigma), a bed speed of 7.0 cm / sec, a pump speed of 0.8 ul / cm and a volume of 50 ul were applied to the control line in a nitrocellulose membrane using a dispenser (zeta co.) 1 mg / ml anti-CRP polyclonal antibody (abcam), bed speed 7.0 cm / sec, pump speed 0.8 ul / cm, volume 50 ul were applied.
- the absorbent pad (Millipore) was attached to the plastic card so as to overlap about 0.2 mm in the upper direction of the nitrocellulose membrane, and cut into 3.5 mm x 60 mm.
- 3.8 mm x 60 mm inter pads (MF1, whatman), fused pads (fusion 5, whatman), and sample pads (Millipore), which were dried with gold nanoparticle-antibody conjugates, in the downward direction of the nitrocellulose membrane of the cut structure. It was attached to the plastic card so as to overlap about 0.2 mm.
- the completed structure was inserted into an LFA case (Inforpia) to prepare an LFA biosensor.
- the CRP signal was analyzed in the same manner as in Example 2-3 of the previous example.
- Figure 6 shows the CRP analysis using the LFA biosensor, the CRP concentration was detected in the range of 0.1 ⁇ 10 ⁇ g / mL CRP.
- Table 3 shows the results of absorbance analysis in the same manner as in Example 1-3.
- the LFA sensor does not show a difference in absorbance in proportion to the concentration when the CRP concentration is 0.1 to 10 ⁇ g / mL, whereas the membrane sensor according to the present invention has a CRP concentration of 0 to 5 ⁇ g / mL. In this case, the absorbance also increased with increasing concentration.
- the sensor of the present invention has a wider measurable range with respect to the concentration of the analyte. It can be seen that it can be measured quantitatively. Therefore, the sensor of the present invention has a merit that it is possible not only to obtain a stable measurement result in a short time, but also to provide accurate quantitative analysis because the detection range is wider and the sensitivity is higher than that of a conventional LFA sensor.
- D-glucose (Duchefa Biochemie) and luminol (Sigma) were dissolved in 0.1 M carbonate buffer (pH 9.0) to 50 mM, respectively, and 20 ⁇ l of the sample pad (Milipore) cut into 7.5 ⁇ 3.5 mm was injected and dried. .
- the anti-CRP antibody-peroxidase complex (Abcam) was dissolved in PBS buffer at a concentration of 20 ⁇ g / mL, and then, on a vivid membrane (Pall, Vivid Plasma Separation-GR) cut to a size of about 7.5 ⁇ 3.5 mm, about 7 ⁇ L was injected and dried.
- Nitrocellulose membrane (Millipore, 240 sec Nitrocellulose) was cut to a size of about 15 ⁇ 15mm, and a laser-shaped wire was drawn on the membrane.
- a 0.1 mm thick polyacrylic double sided adhesive tape was cut into 10 ⁇ 10 mm sizes, and a film was prepared to form two holes by drilling two holes of 0.5 mm size left and right, and then attached to the membrane. In this case, the two holes of the adhesive were arranged to each of the left and right in the shape of a worker engraved on the membrane.
- one hole contains 0.5 mg / mL of anti-CRP polyclonal antibody (Abcam) and 250 U / mL mixture of glucose oxidase (Sigma) as a receptor, and the other hole has 0.5 1 ⁇ l of a mixture of mg / mL, anti-mouse IgG (Sigma, DE), and 250 U / mL of glucose oxidase were injected, 5 ⁇ l of BSA dissolved in PBS buffer at a concentration of 10 mg / mL, and 10 ⁇ l of PBS buffer. It was injected and dried in order.
- Luminol (Sigma) was dissolved in 0.1 M Carbonate buffer (pH 9.0) to 50 mM, respectively, and 20 ⁇ L of the sample pad (Milipore) cut into 7.5 ⁇ 3.5 mm was injected and dried.
- Nitrocellulose membrane (Millipore, 240 sec Nitrocellulose) was cut to a size of about 15 ⁇ 15mm, and a laser-shaped wire was drawn on the membrane.
- a 0.1 mm thick double-sided adhesive tape was cut into 10 ⁇ 10 mm sizes, and a film was prepared to form two holes by right and left holes of 0.5 mm size, and then attached to the membrane. In this case, the two holes of the adhesive were arranged to each of the left and right in the shape of a worker engraved on the membrane.
- the nitrocellulose membrane (Millipore, 240 sec Nitrocellulose) was cut to a size of about 15 ⁇ 15 mm, and three circles were drawn in a regular triangular array so that the membrane was 2 mm in diameter with a laser processor.
- a reaction solution for measuring total cholesterol was prepared on the nitrocellulose membrane where laser processing was completed, and 2 ⁇ L of each circle was dried and dried.
- composition and content of the reaction solution used for measuring total cholesterol are shown in Table 5 below.
- a 0.1 mm thick double-sided adhesive tape was cut into 10 ⁇ 10 mm sizes, and a film was prepared to form three holes by forming three holes having a size of 1 mm at the center of each circle, Attached to the membrane, was prepared by laminating a sample pad (Milipore) cut to a size 5 ⁇ 5mm.
- Lipids control human serum Level 1 and Level 2 (Liquichek TM , BIO-RAD) were injected into the prepared biosensors to compare the degree of color development of Level 1 and Level 2.
- Level 1 and Level 2 control serum used are quality control serum, Level 1 contains normal concentration and Level 2 abnormal concentration of high cholesterol.
Landscapes
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Cell Biology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
Description
| cTnI 농도(ng/mL) | 0 | 0.1 | 1 | 10 |
| T | 11.27 | 11.53 | 23.23 | 30.4 |
| C | 19.95 | 24.23 | 19.23 | 24.82 |
| B | 10.81 | 11.11 | 10.08 | 10.73 |
| 농도(μg/mL) | 3분 경과 | 5분 경과 | 7분 경과 | 10분 경과 |
| 0 | -3.61 | -3.12 | -4.28 | -3.1 |
| 0.01 | 1.15 | 1.31 | 2.03 | 2.79 |
| 0.1 | 16.47 | 20.79 | 22.81 | 29.42 |
| 1 | 41.85 | 43.89 | 52.4 | 52.49 |
| 5 | 74.17 | 75.91 | 81.02 | 81.07 |
| 10 | 60.21 | 63.05 | 60.66 | 60.9 |
| 농도(μg/ml) | 10분 경과 |
| 0 | 0 |
| 0.01 | 2.86 |
| 0.1 | 29.35 |
| 1 | 41.9 |
| 5 | 33.51 |
| 10 | 36.65 |
| 농도(μg/mL) | 15분 경과 | 10분 경과 | 7분 경과 | 5분 경과 | 3 분 경과 |
| 0 | 78326 | 22490 | 28043 | 19214 | 10979 |
| 0.01 | 89538 | 52552 | 36381 | 24688 | 13710 |
| 0.1 | 106521 | 111455 | 54896 | 39408 | 23842 |
| 1 | 659558 | 350142 | 233597 | 154752 | 85941 |
| 5 | 540924 | 335252 | 224698 | 156162 | 91870 |
| 10 | 429909 | 249111 | 167023 | 114882 | 65047 |
| 성분 | 함량 (mg) |
| 콜레스테롤 에스터라아제(Toyobo) | 2.5 mg |
| 콜레스테롤 옥시다아제 (Toyobo) | 7.5 mg |
| 퍼옥시다제 (Toyobo) | 2.3 mg |
| MADB (Dojindo) | 8.72 mg |
| 4-아미노안티피린 | 4.06 mg |
| BSA | 5 mg |
| Triton X-100 | 0.2 mg |
| MOPS (MP Biomedicals, LLC) | 10.45 mg |
| D.I water | 1 mL |
| pH | 5.0 |
Claims (15)
- 멤브레인상에 다수의 구멍을 가진 다공성 필름이 부착되어 있고, 각 구멍 위치에 해당하는 멤브레인상에 리셉터가 고정되어 있는 것을 특징으로 하는 멤브레인 바이오센서.
- 제1항에 있어서, 상기 다공성 필름상에 접합체 패드가 추가로 형성되어 있는 것을 특징으로 하는 멤브레인 바이오센서.
- 제1항 또는 제2항에 있어서, 상기 리셉터는 항체, 항원, 효소, 펩타이드, 단백질, DNA, RNA, PNA 및 압타머로 구성된 군에서 선택되는 것을 특징으로 하는 멤브레인 바이오센서.
- 제1항 또는 제2항에 있어서, 상기 다공성 필름의 구멍의 크기는 10 내지 5000㎛인 것을 특징으로 하는 멤브레인 바이오센서.
- 제1항 또는 제2항에 있어서, 상기 멤브레인은 니트로셀룰로오즈 멤브레인(nitrocellulose membrane)인 것을 특징으로 하는 멤브레인 바이오센서.
- 제1항 또는 제2항에 있어서, 상기 멤브레인 바이오센서에 사용되는 시료는 분석대상물질에 선택적으로 결합하는 물질과 신호발생물질의 접합체를 추가로 포함하는 것을 특징으로 하는 멤브레인 바이오센서.
- 제6항에 있어서, 상기 신호발생물질은 금속 나노입자, 퀀텀닷 나노입자, 자기 나노입자, 효소, 효소 기질, 효소반응 생성물질, 흡광물질, 형광물질 또는 발광물질인 것을 특징으로 하는 멤브레인 바이오센서.
- 제2항에 있어서, 상기 접합체 패드에는 신호발생물질; 또는 분석대상물질에 선택적으로 결합하는 물질과 신호발생물질의 접합체가 도포되어 있는 것을 특징으로 하는 멤브레인 바이오센서.
- 제1항 또는 제2항에 있어서, 상기 접합체 패드상에 샘플패드가 형성되어 있는 것을 특징으로 하는 멤브레인 바이오센서.
- 제1항 또는 제2항에 있어서, 상기 접합체 패드와 다공성 필름 사이에 유체의 흐름을 좋게 하는 멤브레인을 끼워 넣는 것을 특징으로 하는 멤브레인 바이오센서.
- 제1항 또는 제2항에 있어서, 상기 멤브레인을 다공성 필름의 각 구멍을 포함하는 영역으로 구획하는 것을 특징으로 하는 멤브레인 바이오센서.
- 제1항 또는 제2항의 멤브레인 바이오센서를 이용하되, 상기 멤브레인 바이오센서에 시료를 수직으로 주입하는 단계를 포함하는 면역반응 측정방법.
- 제12항에 있어서, 상기 멤브레인 바이오센서의 각 구멍마다 서로 다른 종류의 리셉터가 고정되어 있는 것을 특징으로 하는 측정방법.
- 제1항 또는 제2항의 멤브레인 바이오센서를 이용하되, 상기 멤브레인 바이오센서에 시료를 수직으로 주입하는 단계를 포함하는 효소반응 측정방법.
- 제14항에 있어서, 상기 멤브레인 바이오센서의 각 구멍마다 서로 다른 종류의 리셉터가 고정되어 있는 것을 특징으로 하는 측정방법.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012541017A JP2013512429A (ja) | 2009-11-24 | 2010-11-24 | 多孔性フィルム付きメンブレンバイオセンサー及びこれを用いた免疫反応又は酵素反応の測定方法 |
| EP10833563.9A EP2506012A4 (en) | 2009-11-24 | 2010-11-24 | MEMBRANE BIOSENSOR WITH FIXED POROUS FILM AND METHOD FOR MEASURING IMMUNE REACTIONS OR ENZYME REACTIONS THEREWITH |
| US13/511,962 US9588111B2 (en) | 2009-11-24 | 2010-11-24 | Membrane biosensor having multi-hole film attached thereto and method for measuring immunological reaction or enzymatic reaction using the same |
| CN201080053328.XA CN102667479B (zh) | 2009-11-24 | 2010-11-24 | 附着有多孔性薄膜的膜生物传感器及利用此膜生物传感器的免疫反应或者酶反应测定方法 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20090113779 | 2009-11-24 | ||
| KR10-2009-0113779 | 2009-11-24 | ||
| KR10-2010-0117655 | 2010-11-24 | ||
| KR1020100117655A KR101271022B1 (ko) | 2009-11-24 | 2010-11-24 | 다공성 필름이 부착되어 있는 멤브레인 바이오센서 및 이를 이용한 면역반응 또는 효소반응 측정방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2011065751A2 true WO2011065751A2 (ko) | 2011-06-03 |
| WO2011065751A3 WO2011065751A3 (ko) | 2011-11-10 |
Family
ID=44394109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2010/008363 Ceased WO2011065751A2 (ko) | 2009-11-24 | 2010-11-24 | 다공성 필름이 부착되어 있는 멤브레인 바이오센서 및 이를 이용한 면역반응 또는 효소반응 측정방법 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9588111B2 (ko) |
| EP (1) | EP2506012A4 (ko) |
| JP (1) | JP2013512429A (ko) |
| KR (1) | KR101271022B1 (ko) |
| CN (1) | CN102667479B (ko) |
| WO (1) | WO2011065751A2 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101570149B1 (ko) * | 2014-05-22 | 2015-11-20 | 정효일 | 코티졸 및 씨-반응성 단백질 측정을 위한 광열바이오센서, 상기 광열바이오센서의 측정 장치 및 방법 |
| KR101931816B1 (ko) * | 2012-04-04 | 2018-12-21 | 엘지전자 주식회사 | 효소 반응 발색 조성물 및 이것의 제조방법 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104204794B (zh) | 2012-01-10 | 2017-07-11 | 艾德克斯实验室公司 | 免疫分析测试载玻片 |
| KR101647346B1 (ko) * | 2013-12-31 | 2016-08-23 | 전자부품연구원 | 타겟물질 분석용 금속 전극, 이를 포함하는 타겟물질 분석용 센서 및 면역 크로마토그래피 분석 센서 |
| CN104297492A (zh) * | 2014-10-23 | 2015-01-21 | 沈鹤霄 | 一种基于循环酶法的标记方法及其应用 |
| KR102153736B1 (ko) * | 2018-09-12 | 2020-09-08 | 울산과학기술원 | 수직 유체 흐름을 갖는 바이오 센서 및 이를 이용한 분석 방법 |
| WO2020257939A1 (en) * | 2019-06-26 | 2020-12-30 | Pathcore Inc. | Devices for inspecting adequate exposure of a tissue sample to a treatment medium and methods and uses therefor |
| WO2021041874A1 (en) | 2019-08-29 | 2021-03-04 | Martin David C | Biofunctional thiophene monomers |
| WO2021095858A1 (ja) * | 2019-11-14 | 2021-05-20 | インターメディック株式会社 | 生理活性物質の測定方法 |
| WO2021202260A1 (en) * | 2020-03-31 | 2021-10-07 | 3M Innovative Properties Company | Diagnostic device |
| EP4127721A4 (en) | 2020-03-31 | 2024-05-15 | Solventum Intellectual Properties Company | DIAGNOSTIC DEVICE |
| KR102363041B1 (ko) * | 2020-04-02 | 2022-02-14 | 아주대학교산학협력단 | 측방 유동 분석 스트립 및 이를 이용한 분석 방법 |
| JP2023521550A (ja) * | 2020-04-17 | 2023-05-25 | ユニバーシティ オブ ワシントン | トランスデューサー、ナノ粒子トランスデューサーデバイス、およびシステム、ならびに関連する使用方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100348351B1 (ko) | 2000-05-24 | 2002-08-09 | 주식회사 바이오디지트 | 전기화학 멤브레인 스트립 바이오센서 |
| US20050214161A1 (en) | 2004-03-23 | 2005-09-29 | Gupta Surendra K | Test device for simultaneous measurement of multiple analytes in a single sample |
| JP2006507511A (ja) | 2002-11-15 | 2006-03-02 | ザ・リージェンツ・オブ・ザ・ユニバーシティー・オブ・カリフォルニア | 複合センサメンブレン |
| KR100591390B1 (ko) | 2003-02-20 | 2006-06-19 | 가부시키가이샤 덴소 | 멤브레인을 갖는 센서 및 그 제조 방법 |
| KR100599420B1 (ko) | 2003-04-25 | 2006-07-10 | 주식회사 바이오디지트 | 현장진단용 멤브레인 스트립 바이오센서 시스템 |
| US7494818B1 (en) | 2001-12-28 | 2009-02-24 | Polymer Technology Systems, Inc. | Method for determining concentration of multiple analytes in a single fluid sample |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4446232A (en) * | 1981-10-13 | 1984-05-01 | Liotta Lance A | Enzyme immunoassay with two-zoned device having bound antigens |
| NL8600056A (nl) | 1986-01-13 | 1987-08-03 | Nederlanden Staat | Werkwijze voor het aantonen van een lid van een immunologisch paar, werkwijze voor het bereiden van een drager waaraan een lid van een immunologisch paar is gebonden alsmede analyse-inrichting geschikt voor het uitvoeren van dergelijke werkwijzen. |
| GB8612861D0 (en) * | 1986-05-27 | 1986-07-02 | Cambridge Life Sciences | Immobilised enzyme biosensors |
| US5219528A (en) * | 1989-07-28 | 1993-06-15 | Pierce Chemical Company | Apparatus for rapid immunoassays |
| DE69127383T2 (de) | 1990-01-19 | 1998-03-05 | Mina Ltd | Gerät und Verfahren zur Untersuchung von Blut und zur Fingerabdruck-Identifikation |
| JPH0412272A (ja) * | 1990-04-28 | 1992-01-16 | Toyo Roshi Kaisha Ltd | 高感度乾式分折片 |
| JP3299330B2 (ja) | 1993-03-18 | 2002-07-08 | 持田製薬株式会社 | 簡易測定装置および方法 |
| EP0893690B1 (en) | 1997-07-14 | 2004-07-14 | Toxi-Test N.V. | Detection of mycotoxins by flow-through membrane-based enzyme immunoassay |
| CN1210266A (zh) * | 1997-09-03 | 1999-03-10 | 山东省果树研究所 | 点免疫结合测试苹果潜隐病毒方法 |
| US6284194B1 (en) * | 1998-03-11 | 2001-09-04 | Albert E. Chu | Analytical assay device and methods using surfactant treated membranes to increase assay sensitivity |
| KR100513213B1 (ko) | 2000-06-01 | 2005-09-08 | 마츠시타 덴끼 산교 가부시키가이샤 | 바이오센서 및 혈액 성분 분석 방법 |
| EP1845375A3 (en) * | 2000-12-22 | 2008-05-21 | Bio A.R.T. BVBA | Flow through assay device, diagnostic kit comprising said device and use in the detection of an analyte in a sample |
| CN1249438C (zh) * | 2001-02-02 | 2006-04-05 | 徐荣臻 | 一种蛋白芯片 |
| US7531362B2 (en) * | 2001-06-07 | 2009-05-12 | Medmira Inc. | Rapid diagnostic assay |
| GB2391068A (en) | 2002-07-18 | 2004-01-28 | Sensor Tech Ltd | A lateral flow through device comprising an electrochemical sesor |
| WO2004111610A2 (en) * | 2003-06-12 | 2004-12-23 | Accupath Diagnostic Laboratories, Inc. | Method and system for the analysis of high density cells samples |
| JP4365329B2 (ja) | 2005-01-05 | 2009-11-18 | デンカ生研株式会社 | 複数の被検出物を検出する簡易アッセイ装置及び方法 |
| CN1710424A (zh) * | 2005-04-28 | 2005-12-21 | 天津科技大学 | 胶体金标记法快速检测西维因试纸条及其制作方法与应用 |
| CN1332203C (zh) * | 2005-11-10 | 2007-08-15 | 上海交通大学 | 检测动物性食品中盐酸克伦特罗的快速测试方法 |
| US8409411B2 (en) * | 2005-12-02 | 2013-04-02 | State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Portland State University | Nano-porous membrane based sensors |
| JP4621583B2 (ja) | 2005-12-09 | 2011-01-26 | シャープ株式会社 | タンパク質検査体、及びその製造方法、並びにタンパク質検査体を用いたタンパク質検出装置 |
| US20090192297A1 (en) * | 2006-02-02 | 2009-07-30 | Ube Industries, Ltd. | Carbon membrane having biological molecule immobilized thereon |
| US20080199946A1 (en) * | 2007-02-16 | 2008-08-21 | Chung-Cheng Chang | Biochip |
| GB0718606D0 (en) | 2007-09-24 | 2007-10-31 | Bio A R T Sa | Multiparameter assay |
| CN101339190A (zh) * | 2008-05-19 | 2009-01-07 | 浙江省医学科学院 | 人体重要寄生虫抗原芯片及其制备方法 |
-
2010
- 2010-11-24 KR KR1020100117655A patent/KR101271022B1/ko active Active
- 2010-11-24 JP JP2012541017A patent/JP2013512429A/ja active Pending
- 2010-11-24 CN CN201080053328.XA patent/CN102667479B/zh active Active
- 2010-11-24 US US13/511,962 patent/US9588111B2/en active Active
- 2010-11-24 WO PCT/KR2010/008363 patent/WO2011065751A2/ko not_active Ceased
- 2010-11-24 EP EP10833563.9A patent/EP2506012A4/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100348351B1 (ko) | 2000-05-24 | 2002-08-09 | 주식회사 바이오디지트 | 전기화학 멤브레인 스트립 바이오센서 |
| US7494818B1 (en) | 2001-12-28 | 2009-02-24 | Polymer Technology Systems, Inc. | Method for determining concentration of multiple analytes in a single fluid sample |
| JP2006507511A (ja) | 2002-11-15 | 2006-03-02 | ザ・リージェンツ・オブ・ザ・ユニバーシティー・オブ・カリフォルニア | 複合センサメンブレン |
| KR100591390B1 (ko) | 2003-02-20 | 2006-06-19 | 가부시키가이샤 덴소 | 멤브레인을 갖는 센서 및 그 제조 방법 |
| KR100599420B1 (ko) | 2003-04-25 | 2006-07-10 | 주식회사 바이오디지트 | 현장진단용 멤브레인 스트립 바이오센서 시스템 |
| US20050214161A1 (en) | 2004-03-23 | 2005-09-29 | Gupta Surendra K | Test device for simultaneous measurement of multiple analytes in a single sample |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP2506012A4 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101931816B1 (ko) * | 2012-04-04 | 2018-12-21 | 엘지전자 주식회사 | 효소 반응 발색 조성물 및 이것의 제조방법 |
| KR101570149B1 (ko) * | 2014-05-22 | 2015-11-20 | 정효일 | 코티졸 및 씨-반응성 단백질 측정을 위한 광열바이오센서, 상기 광열바이오센서의 측정 장치 및 방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2506012A2 (en) | 2012-10-03 |
| US9588111B2 (en) | 2017-03-07 |
| JP2013512429A (ja) | 2013-04-11 |
| US20120270235A1 (en) | 2012-10-25 |
| WO2011065751A3 (ko) | 2011-11-10 |
| KR101271022B1 (ko) | 2013-06-04 |
| KR20110058719A (ko) | 2011-06-01 |
| CN102667479A (zh) | 2012-09-12 |
| EP2506012A4 (en) | 2014-01-15 |
| CN102667479B (zh) | 2015-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2011065751A2 (ko) | 다공성 필름이 부착되어 있는 멤브레인 바이오센서 및 이를 이용한 면역반응 또는 효소반응 측정방법 | |
| CA2318459C (en) | Neutralization of polycations in a chromatographic device for whole blood use | |
| KR100946566B1 (ko) | 측방 유동 면역 분석 디바이스 | |
| WO2013051889A2 (ko) | 한 번의 시료 주입으로 순차적인 반응 조건의 변화가 가능한 멤브레인 센서 | |
| CN101622541A (zh) | 糖化血红蛋白定量检测系统及使用该系统检测糖化血红蛋白含量的方法 | |
| CN105403698A (zh) | 采用内部校正系统的诊断性试验试剂盒 | |
| JP2002243741A (ja) | 生体高分子とリガンドとの相互作用を検出する装置及びその方法 | |
| SE462606B (sv) | Anordning och foerfarande foer bestaemning av naervaron av antigener | |
| KR20050052354A (ko) | NT―proBNP 측정용 분석 샌드위치 테스트 | |
| CN1146557A (zh) | 定量检测免疫层析条上的分析物 | |
| WO2009144894A1 (ja) | バイオセンサ | |
| JP2002532718A (ja) | 炭水化物を含まないトランスフェリンのアッセイ用ディップスティック | |
| JP5097557B2 (ja) | 免疫測定装置及び方法 | |
| JPH1144689A (ja) | 免疫分析装置 | |
| CN102472751B (zh) | 带有改良流体结构的自动化免疫横向流动测试盒 | |
| US7067264B2 (en) | Test device for detecting human blood and method of use | |
| US20020106696A1 (en) | Test device for detecting semen and method of use | |
| WO2019208961A1 (ko) | 면역 화학 진단법을 이용한 표적 항원 검출용 종이기반 3차원 구조의 미세칩과 이를 이용한 표적항원 검출 방법 | |
| WO2015005504A1 (ko) | 혈당측정용 바이오칩 및 그를 포함하는 스마트폰용 혈당측정기 | |
| EP2700449B1 (en) | Immunochromatographic Device | |
| JP3831759B2 (ja) | 抗梅毒トレポネーマ抗体の免疫分析方法及び免疫分析装置 | |
| EP3797867B1 (en) | Evanescence biosensor for blood | |
| WO2014181896A1 (ko) | 막 기반 다중튜브를 포함하는 생체 물질 분석 장치 | |
| JP2001228156A (ja) | 梅毒抗体検出用免疫分析装置 | |
| WO2025183501A2 (ko) | 산란광 검출이 가능한 측방 유동 멤브레인 센서 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 201080053328.X Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 10833563 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2012541017 Country of ref document: JP |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 13511962 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2010833563 Country of ref document: EP |