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Liang YF, Yang JY, Shen YD, Xu ZL, Wang H. A breakthrough of immunoassay format for hapten: recent insights into noncompetitive immunoassays to detect small molecules. Crit Rev Food Sci Nutr 2024:1-11. [PMID: 38356229 DOI: 10.1080/10408398.2024.2315473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Immunoassay based on the antibodies specific for targets has advantages of high sensitivity, simplicity and low cost, therefore it has received more attention in recent years, especially for the rapid detection of small molecule chemicals present in foods, diagnostics and environments. However, limited by low molecular weight and only one antigenic determinant existed, immunoassays for these small molecule chemicals, namely hapten substances, were commonly performed in a competitive immunoassay format, whose sensitivities were obviously lower than the sandwich enzyme-linked immunosorbent assay generally adaptable for the protein targets. In order to break through the bottleneck of detection format, researchers have designed and established several novel noncompetitive immunoassays for the haptens in the past few years. In this review, we focused on the four representative types of noncompetitive immunoassay formats and described their characteristics and applications in rapid detection of small molecules. Meanwhile, a systematic discussion on the current technologies challenges and the possible solutions were also summarized. This review aims to provide an updated overview of the current state-of-the-art in noncompetitive immunoassay for small molecules, and inspire the development of novel designs for small molecule detection.
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Affiliation(s)
- Yi-Fan Liang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Jin-Yi Yang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Yu-Dong Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Hong Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
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2
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Wan Y, Zong C, Li X, Wang A, Li Y, Yang T, Bao Q, Dubow M, Yang M, Rodrigo LA, Mao C. New Insights for Biosensing: Lessons from Microbial Defense Systems. Chem Rev 2022; 122:8126-8180. [PMID: 35234463 DOI: 10.1021/acs.chemrev.1c01063] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Microorganisms have gained defense systems during the lengthy process of evolution over millions of years. Such defense systems can protect them from being attacked by invading species (e.g., CRISPR-Cas for establishing adaptive immune systems and nanopore-forming toxins as virulence factors) or enable them to adapt to different conditions (e.g., gas vesicles for achieving buoyancy control). These microorganism defense systems (MDS) have inspired the development of biosensors that have received much attention in a wide range of fields including life science research, food safety, and medical diagnosis. This Review comprehensively analyzes biosensing platforms originating from MDS for sensing and imaging biological analytes. We first describe a basic overview of MDS and MDS-inspired biosensing platforms (e.g., CRISPR-Cas systems, nanopore-forming proteins, and gas vesicles), followed by a critical discussion of their functions and properties. We then discuss several transduction mechanisms (optical, acoustic, magnetic, and electrical) involved in MDS-inspired biosensing. We further detail the applications of the MDS-inspired biosensors to detect a variety of analytes (nucleic acids, peptides, proteins, pathogens, cells, small molecules, and metal ions). In the end, we propose the key challenges and future perspectives in seeking new and improved MDS tools that can potentially lead to breakthrough discoveries in developing a new generation of biosensors with a combination of low cost; high sensitivity, accuracy, and precision; and fast detection. Overall, this Review gives a historical review of MDS, elucidates the principles of emulating MDS to develop biosensors, and analyzes the recent advancements, current challenges, and future trends in this field. It provides a unique critical analysis of emulating MDS to develop robust biosensors and discusses the design of such biosensors using elements found in MDS, showing that emulating MDS is a promising approach to conceptually advancing the design of biosensors.
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Affiliation(s)
- Yi Wan
- State Key Laboratory of Marine Resource Utilization in the South China Sea, School of Pharmaceutical Sciences, Marine College, Hainan University, Haikou 570228, P. R. China
| | - Chengli Zong
- State Key Laboratory of Marine Resource Utilization in the South China Sea, School of Pharmaceutical Sciences, Marine College, Hainan University, Haikou 570228, P. R. China
| | - Xiangpeng Li
- Department of Bioengineering and Therapeutic Sciences, Schools of Medicine and Pharmacy, University of California, San Francisco, 1700 Fourth Street, Byers Hall 303C, San Francisco, California 94158, United States
| | - Aimin Wang
- State Key Laboratory of Marine Resource Utilization in the South China Sea, School of Pharmaceutical Sciences, Marine College, Hainan University, Haikou 570228, P. R. China
| | - Yan Li
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
| | - Tao Yang
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
| | - Qing Bao
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
| | - Michael Dubow
- Institute for Integrative Biology of the Cell (I2BC), UMR 9198 CNRS, CEA, Université Paris-Saclay, Campus C.N.R.S, Bâtiment 12, Avenue de la Terrasse, 91190 Gif-sur-Yvette, France
| | - Mingying Yang
- College of Animal Science, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
| | - Ledesma-Amaro Rodrigo
- Imperial College Centre for Synthetic Biology, Department of Bioengineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life Science Research Center, University of Oklahoma, 101 Stephenson Parkway, Norman, Oklahoma 73019, United States.,School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, P. R. China
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Sakata T, Shiratori R, Kato M. Hydrogel-Coated Gate Field-Effect Transistor for Real-Time and Label-Free Monitoring of β-Amyloid Aggregation and Its Inhibition. Anal Chem 2022; 94:2820-2826. [PMID: 35119275 DOI: 10.1021/acs.analchem.1c04339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this paper, we propose a hydrogel-coated gate field-effect transistor (FET) for the real-time and label-free monitoring of β-amyloid (Aβ) aggregation and its inhibition. The hydrogel used in this study is composed of poly tetramethoxysilane (TMOS), in which Aβ monomers are entrapped and then aggregate, and coated on the gate insulator; that is, Aβ aggregation is induced in the vicinity of the sensing surface. With the Aβ hydrogel-coated gate FET, the steplike decrease in the surface potential of the Aβ hydrogel-coated gate electrode is electrically monitored in real time, according to the stepwise aggregation of Aβ monomers to form into fibrils through oligomers and so forth in stages. This is because the capacitance of the Aβ-hydrogel membrane decreases depending on the stage of aggregation; that is, the hydrophobicity of the Aβ-hydrogel membrane increases stepwise depending on the amount of Aβ aggregates. The formation of Aβ fibrils is also confirmed in the measurement solution using a fluorescent dye, thioflavin T, which selectively binds to the Aβ fibrils. Moreover, the addition of daunomycin, an inhibitor of Aβ aggregation, to the measurement solution suppresses the stepwise electrical response of the Aβ hydrogel-coated gate FET. Thus, a platform based on the Aβ hydrogel-coated gate FET is suitable for a simple screening system for inhibitors of Aβ aggregation, which may lead the identification of potential therapeutic agents for Alzheimer's disease.
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Affiliation(s)
- Toshiya Sakata
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Reiko Shiratori
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Masaru Kato
- Department of Bioanalytical Chemistry, School of Pharmacy, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
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Kanai Y, Ohmuro-Matsuyama Y, Tanioku M, Ushiba S, Ono T, Inoue K, Kitaguchi T, Kimura M, Ueda H, Matsumoto K. Graphene Field Effect Transistor-Based Immunosensor for Ultrasensitive Noncompetitive Detection of Small Antigens. ACS Sens 2020; 5:24-28. [PMID: 31922395 DOI: 10.1021/acssensors.9b02137] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Due to its high carrier mobility, graphene is considered a suitable material for use in field-effect transistors. However, its application to immunosensing of small molecules is still elusive. To investigate the potential of graphene field effect transistors (G-FET) as a sensor for small molecules with small or no charge, we applied the open-sandwich immunoassay (OS-IA), which detects low-molecular-weight antigens noncompetitively, to G-FET. Using an antibody variable fragment VL immobilized on graphene and a hyperacidic region of amyloid precursor protein fused to the other variable fragment VH, we successfully detected a small antigen peptide consisting of 7 amino acids (BGP-C7), with a more than 100-fold increase in sensitivity compared with that measured by enzyme-linked OS-IA. Furthermore, we succeeded in detecting BGP-C7 in the presence of human serum with similar sensitivity, suggesting its potential application in clinical diagnostics.
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Affiliation(s)
- Yasushi Kanai
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Yuki Ohmuro-Matsuyama
- Laboratory for Chemistry and Life Sciences, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho, Yokohama, Kanagawa 226-8503, Japan
| | - Masami Tanioku
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Shota Ushiba
- Murata Manufacturing Co. Ltd., Higashikotari, Nagaokakyo-shi, Kyoto 617-8555, Japan
| | - Takao Ono
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Koichi Inoue
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Tetsuya Kitaguchi
- Laboratory for Chemistry and Life Sciences, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho, Yokohama, Kanagawa 226-8503, Japan
| | - Masahiko Kimura
- Murata Manufacturing Co. Ltd., Higashikotari, Nagaokakyo-shi, Kyoto 617-8555, Japan
| | - Hiroshi Ueda
- Laboratory for Chemistry and Life Sciences, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta-cho, Yokohama, Kanagawa 226-8503, Japan
| | - Kazuhiko Matsumoto
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
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Ito K, Satake H, Mori Y, Tseng AC, Sakata T. Biocompatible and Na +-sensitive thin-film transistor for biological fluid sensing. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2019; 20:917-926. [PMID: 31595176 PMCID: PMC6764347 DOI: 10.1080/14686996.2019.1656516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/13/2019] [Accepted: 08/14/2019] [Indexed: 05/23/2023]
Abstract
In this study, we develop a Na+-sensitive thin-film transistor (TFT) for a biocompatible ion sensor and investigate its cytotoxicity. A transparent amorphous oxide semiconductor composed of amorphous In-Ga-Zn-oxide (a-InGaZnO) is utilized as a channel of the Na+-sensitive TFT, which includes an indium tin oxide (ITO) film as the source and drain electrodes and a Ta2O5 thin-film gate, onto which a Na+-sensitive membrane is coated. As one of the Na+-sensitive membranes, the polyvinyl chloride (PVC) membrane with bis(12-crown-4) as the ionophore used on the TFT sensors shows good sensitivity and selectivity to changes in Na+ concentration but has high cytotoxicity owing to the leaching of its plasticizer to the solution; the plasticizer is added to solve and entrap the ionophore in the PVC membrane. On the other hand, a plasticizer-free Na+-sensitive membrane, the fluoropolysilicone (FPS) membrane with the bis(12-crown-4) ionophore, also reduces cell viability owing to the leaching of the ionophore. However, the FPS membrane with calix[4]arene as the ionophore on the gate of TFT sensors exhibits not only favorable electrical properties but also the lack of cytotoxicity. Thus, considering structural flexibility of TFTs, a platform based on TFT sensors coated with the Na+-sensitive FPS membrane containing calix[4]arene is suitable as a biocompatible Na+ sensing system for the continuous monitoring of ionic components in biological fluids such as sweat and tears.
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Affiliation(s)
- Kensuke Ito
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Hiroto Satake
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Yuto Mori
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Alex C. Tseng
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Toshiya Sakata
- Department of Materials Engineering, School of Engineering, The University of Tokyo, Tokyo, Japan
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6
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Himori S, Nishitani S, Sakata T. Control of Potential Response to Small Biomolecules with Electrochemically Grafted Aryl-Based Monolayer in Field-Effect Transistor-Based Sensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:3701-3709. [PMID: 30779579 DOI: 10.1021/acs.langmuir.9b00085] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this paper, we demonstrate the use of a monolayer film electrografted via diazonium chemistry for controlling the potential response of a field-effect transistor (FET)-based sensor. 4-Nitrobenzenediazonium salt is electrografted on an extended-Au-gate FET (EG-Au-FET) with or without using a radical scavenger by cyclic voltammetry (CV), resulting in the formation of a monolayer or multilayer. In particular, the surface coverage of the aryl-derivative monolayer on the Au gate electrode gradually increases with increasing number of potential cycles in CV. Here, Au exhibits a strong catalytic action, resulting in the oxidation of organic compounds. Uric acid is used as a low-molecular-weight biomolecule for interference. The denser the surface coverage of the grafted monolayer, the smaller the potential response of the EG-Au-FET because the redox reaction of uric acid with the Au gate surface is suppressed. On the other hand, the effect of the aryl-derivative multilayer on the suppression of the potential response was smaller than that of the monolayer because the electrogenerated aryl radicals did not react with the Au surface but with the grafted species, resulting in an exposed part of the Au surface among the grafted aryl molecules. Thus, a platform based on such a monolayer film electrografted via diazonium chemistry is suitable for controlling the potential response based on the interference of low-molecular-weight biomolecules in biosamples.
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Affiliation(s)
- Shogo Himori
- Department of Materials Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Shoichi Nishitani
- Department of Materials Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Toshiya Sakata
- Department of Materials Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
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7
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Nishitani S, Sakata T. Polymeric Nanofilter Biointerface for Potentiometric Small-Biomolecule Recognition. ACS APPLIED MATERIALS & INTERFACES 2019; 11:5561-5569. [PMID: 30644715 DOI: 10.1021/acsami.8b20010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this paper, we propose a novel concept of a biointerface, a polymeric nanofilter, for the potentiometric detection of small biomolecules using an extended-Au-gate field-effect transistor (EG-Au-FET). A Au electrode has the potential capability to detect various small biomolecules with ultrasensitivity at nM levels on the basis of a surface redox reaction, but it exhibits no selective response to such biomolecules. Therefore, a suitable polymeric nanofilter is designed and modified on the Au electrode, so that a small target biomolecule reaches the Au surface, resulting in an electrical signal, whereas low-molecular-weight interferences not approaching the Au surface are captured in the polymeric nanofilter. The polymeric nanofilter is composed of two layers. The first layer is electrografted as an anchor layer by a cyclic voltammetry method. Then, a filtering layer is precisely polymerized as the second layer by a photo-mediated surface-initiated atom transfer radical polymerization method. The thickness and density of the polymeric nanofilter are controlled to specifically detect a small target biomolecule with high sensitivity. As a model case, l-cysteine as the small target biomolecule at nM levels is specifically detected by filtering l-DOPA as a low-molecular-weight interference using the polymeric nanofilter-grafted EG-Au-FET on the basis of the following mechanism. The phenylboronic acid (PBA) that copolymerizes with the polymeric nanofilter captures l-DOPA through diol binding, whereas l-cysteine reaches the Au surface through the filter layer. The polymeric nanofilter can also effectively prevent the interaction between biomacromolecules such as albumin and the Au electrode. A platform based on a polymeric nanofilter-grafted EG-Au-FET biosensor is suitable for the ultrasensitive and specific detection of a small biomolecule in biological samples such as tears and sweat, which include small amounts of low-molecular-weight interferences, which generate nonspecific electrical signals.
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Affiliation(s)
- Shoichi Nishitani
- Department of Materials Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
| | - Toshiya Sakata
- Department of Materials Engineering, School of Engineering , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku, Tokyo 113-8656 , Japan
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8
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Kajisa T, Sakata T. Molecularly Imprinted Artificial Biointerface for an Enzyme-Free Glucose Transistor. ACS APPLIED MATERIALS & INTERFACES 2018; 10:34983-34990. [PMID: 30234958 DOI: 10.1021/acsami.8b13317] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A platform based on a highly selective and sensitive detection device functionalized with a well-designed artificial biointerface is required for versatile biosensors. We develop a molecularly imprinted polymer (MIP)-coated gate field-effect transistor (FET) biosensor for low-concentration glucose detection in biological fluid samples such as tears in an enzyme-free manner. The MIP includes glucose templates (GluMIP), in which glucose binds to vinylphenylboronic acid in the copolymerized membrane, resulting in the change in the density of molecular charges of the phenylboronic acid (PBA)/glucose complex. The FET biosensor can detect small biomolecules as long as biomolecular recognition events cause intrinsic changes in the density of molecular charges. As a result, the changes in the output voltage detected using the GluMIP-based FET sensor are fitted to the Langmuir adsorption isotherm equation at various concentrations of sugars, showing the low detection limit of 3 μM and the high sensitivity of 115 mV/decade from 100 μM to 4 mM glucose. On the basis of the equation, the stability constant ( Ka) of PBA with glucose is calculated and found to markedly increase to Ka = 1192 M-1, which is higher by a factor of a few hundreds than Ka = 4.6 M-1 obtained by nonelectrical detection methods. Moreover, the GluMIP-coated gate FET sensor shows an approximately 200-fold higher selectivity for glucose than for fructose. This is because glucose binds to PBA more selectively than fructose in the templates, resulting in the generation of negative charges. The electrical properties of the MIP-coated electrode are also evaluated by measuring capacitance. Our work suggests a new strategy of designing a platform based on the MIP-coated gate FET biosensor, which is suitable for a highly selective, sensitive, enzyme-free biosensing system.
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Li Y, Zhang G, Mao X, Yang S, De Ruyck K, Wu Y. High sensitivity immunoassays for small molecule compounds detection – Novel noncompetitive immunoassay designs. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.04.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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10
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Cui X, Jin M, Du P, Chen G, Zhang C, Zhang Y, Shao Y, Wang J. Development of immunoassays for multi-residue detection of small molecule compounds. FOOD AGR IMMUNOL 2018. [DOI: 10.1080/09540105.2018.1428284] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- Xueyan Cui
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Maojun Jin
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Pengfei Du
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Ge Chen
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Chan Zhang
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Yudan Zhang
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Yong Shao
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Jing Wang
- Key Laboratory for Agro-Products Quality and Food Safety, Institute of Quality Standards & Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
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11
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Liu A, Anfossi L, Shen L, Li C, Wang X. Non-competitive immunoassay for low-molecular-weight contaminant detection in food, feed and agricultural products: A mini-review. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2017.11.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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12
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Yang H, Honda M, Saito A, Kajisa T, Yanase Y, Sakata T. Nonoptical Detection of Allergic Response with a Cell-Coupled Gate Field-Effect Transistor. Anal Chem 2017; 89:12918-12923. [PMID: 29116752 DOI: 10.1021/acs.analchem.7b03688] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Haoyue Yang
- Department
of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Masatoshi Honda
- Department
of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Akiko Saito
- Department
of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Taira Kajisa
- Department
of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuhki Yanase
- Department
of Dermatology, Division of Molecular Medical Science, Graduate School
of Biomedical Science, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
| | - Toshiya Sakata
- Department
of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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13
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Versatile transduction scheme based on electrolyte-gated organic field-effect transistor used as immunoassay readout system. Biosens Bioelectron 2017; 92:215-220. [DOI: 10.1016/j.bios.2017.02.020] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/08/2017] [Accepted: 02/13/2017] [Indexed: 01/12/2023]
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14
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Lim CM, Kwon JY, Cho WJ. Field-Effect Transistor Biosensor Platform Fused with Drosophila Odorant-Binding Proteins for Instant Ethanol Detection. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14051-14057. [PMID: 28374580 DOI: 10.1021/acsami.6b15539] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Odorant-binding proteins (OBPs) have attracted considerable attention as sensing substrates for the development of olfactory biosensors. The Drosophila LUSH protein is an OBP and is known to bind to various alcohols. Technology that uses the LUSH protein has great potential to provide crucial information through odorant detection. In this work, the LUSH protein was used as a sensing substrate to detect the ethanol concentration. Furthermore, we fused the LUSH protein with a silicon-on-insulator (SOI)-based ion-sensitive field-effect transistor (ISFET) to measure the electrical signals that arise from molecular interactions between the LUSH and ethanol. A dual-gate sensing system for self-amplification of the signal resulting from the molecular interaction between the LUSH and ethanol was then used to achieve a much higher sensitivity than a conventional ISFET. In the end, we successfully detected ethanol at concentrations ranging between 0.001 and 1% using the LUSH OBP-fused ISFET olfactory sensor. The OBP-fused SOI-based olfactory ISFET sensor can lead to the development of handheld sensors for various purposes such as detecting toxic chemicals, narcotics control, testing for food freshness, and noninvasive diagnoses.
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Affiliation(s)
- Cheol-Min Lim
- Department of Electronic Materials Engineering, Kwangwoon University , 20 Gwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea
| | - Jae Young Kwon
- Department of Biological Sciences, Sungkyunkwan University , Seobu-ro, Jangan-gu, Suwon 440-746, Gyeonggi-do, Republic of Korea
| | - Won-Ju Cho
- Department of Electronic Materials Engineering, Kwangwoon University , 20 Gwangwoon-ro, Nowon-gu, Seoul 01897, Republic of Korea
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15
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Zhang F, Ma J, Watanabe J, Tang J, Liu H, Shen H. Dual Electrophoresis Detection System for Rapid and Sensitive Immunoassays with Nanoparticle Signal Amplification. Sci Rep 2017; 7:42562. [PMID: 28198385 PMCID: PMC5309740 DOI: 10.1038/srep42562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 01/08/2017] [Indexed: 12/19/2022] Open
Abstract
An electrophoretic technique was combined with an enzyme-linked immunosorbent assay (ELISA) system to achieve a rapid and sensitive immunoassay. A cellulose acetate filter modified with polyelectrolyte multilayer (PEM) was used as a solid substrate for three-dimensional antigen-antibody reactions. A dual electrophoresis process was used to induce directional migration and local condensation of antigens and antibodies at the solid substrate, avoiding the long diffusion times associated with antigen-antibody reactions in conventional ELISAs. The electrophoretic forces drove two steps in the ELISA process, namely the adsorption of antigen, and secondary antibody-labelled polystyrene nanoparticles (NP-Ab). The total time needed for dual electrophoresis-driven detection was just 4 min, nearly 2 h faster than a conventional ELISA system. Moreover, the rapid NP-Ab electrophoresis system simultaneously achieved amplification of the specific signal and a reduction in noise, leading to a more sensitive NP-Ab immunoassay with a limit of detection (LOD) of 130 fM, and wide range of detectable concentrations from 0.13 to 130 pM. These results suggest that the combination of dual electrophoresis detection and NP-Ab signal amplification has great potential for future immunoassay systems.
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Affiliation(s)
- Fangfang Zhang
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Junjie Ma
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Junji Watanabe
- Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Higashinada, Kobe 658-8501, Japan
| | - Jinlong Tang
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Huiyu Liu
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Heyun Shen
- Beijing Key Laboratory of Bioprocess, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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16
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Sakata T, Matsuse Y. In situ
electrical monitoring of cancer cells invading vascular endothelial cells with semiconductor‐based biosensor. Genes Cells 2017; 22:203-209. [DOI: 10.1111/gtc.12473] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 12/16/2016] [Indexed: 01/26/2023]
Affiliation(s)
- Toshiya Sakata
- Department of Materials Engineering School of Engineering The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐8656 Japan
| | - Yusuke Matsuse
- Department of Materials Engineering School of Engineering The University of Tokyo 7‐3‐1 Hongo Bunkyo‐ku Tokyo 113‐8656 Japan
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17
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Kajisa T, Sakata T. Glucose-responsive hydrogel electrode for biocompatible glucose transistor. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2017; 18:26-33. [PMID: 28179956 PMCID: PMC5256429 DOI: 10.1080/14686996.2016.1257344] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 11/01/2016] [Accepted: 11/02/2016] [Indexed: 05/20/2023]
Abstract
In this paper, we propose a highly sensitive and biocompatible glucose sensor using a semiconductor-based field effect transistor (FET) with a functionalized hydrogel. The principle of the FET device contributes to the easy detection of ionic charges with high sensitivity, and the hydrogel coated on the electrode enables the specific detection of glucose with biocompatibility. The copolymerized hydrogel on the Au gate electrode of the FET device is optimized by controlling the mixture ratio of biocompatible 2-hydroxyethylmethacrylate (HEMA) as the main monomer and vinylphenylboronic acid (VPBA) as a glucose-responsive monomer. The gate surface potential of the hydrogel FETs shifts in the negative direction with increasing glucose concentration from 10 μM to 40 mM, which results from the increase in the negative charges on the basis of the diol-binding of PBA derivatives with glucose molecules in the hydrogel. Moreover, the hydrogel coated on the gate suppresses the signal noise caused by the nonspecific adsorption of proteins such as albumin. The hydrogel FET can serve as a highly sensitive and biocompatible glucose sensor in in vivo or ex vivo applications such as eye contact lenses and sheets adhering to the skin.
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Affiliation(s)
- Taira Kajisa
- PROVIGATE Inc., Department of Research and Development, Tokyo, Japan
| | - Toshiya Sakata
- Department of Materials Science and Engineering, Graduate School of Engineering, The University of Tokyo, Tokyo, Japan
- Corresponding author.
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18
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Masuda T, Kajisa T, Akimoto AM, Fujita A, Nagase K, Okano T, Sakata T, Yoshida R. Dynamic electrical behaviour of a thermoresponsive polymer in well-defined poly(N-isopropylacrylamide)-grafted semiconductor devices. RSC Adv 2017. [DOI: 10.1039/c7ra05786e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein, we found that the phase transition behaviour from swelling state to deswelling state in response to temperature change was electrically detected in real time by using the poly(N-isopropylacrylamide)-grafted gate field effect transistor.
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Affiliation(s)
- Tsukuru Masuda
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Taira Kajisa
- PROVIGATE Inc
- The University of Tokyo
- Tokyo 113-0033
- Japan
| | - Aya Mizutani Akimoto
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Akane Fujita
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Kenichi Nagase
- Institute of Advanced Biomiedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
| | - Teruo Okano
- Institute of Advanced Biomiedical Engineering and Science
- Tokyo Women's Medical University (TWIns)
- Tokyo 162-8666
- Japan
| | - Toshiya Sakata
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Ryo Yoshida
- Department of Materials Engineering
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
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19
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Lee IK, Jeun M, Jang HJ, Cho WJ, Lee KH. A self-amplified transistor immunosensor under dual gate operation: highly sensitive detection of hepatitis B surface antigen. NANOSCALE 2015; 7:16789-16797. [PMID: 26399739 DOI: 10.1039/c5nr03146j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Ion-sensitive field-effect transistors (ISFETs), although they have attracted considerable attention as effective immunosensors, have still not been adopted for practical applications owing to several problems: (1) the poor sensitivity caused by the short Debye screening length in media with high ion concentration, (2) time-consuming preconditioning processes for achieving the highly-diluted media, and (3) the low durability caused by undesirable ions such as sodium chloride in the media. Here, we propose a highly sensitive immunosensor based on a self-amplified transistor under dual gate operation (immuno-DG ISFET) for the detection of hepatitis B surface antigen. To address the challenges in current ISFET-based immunosensors, we have enhanced the sensitivity of an immunosensor by precisely tailoring the nanostructure of the transistor. In the pH sensing test, the immuno-DG ISFET showed superior sensitivity (2085.53 mV per pH) to both standard ISFET under single gate operation (58.88 mV per pH) and DG ISFET with a non-tailored transistor (381.14 mV per pH). Moreover, concerning the detection of hepatitis B surface antigens (HBsAg) using the immuno-DG ISFET, we have successfully detected trace amounts of HBsAg (22.5 fg mL(-1)) in a non-diluted 1× PBS medium with a high sensitivity of 690 mV. Our results demonstrate that the proposed immuno-DG ISFET can be a biosensor platform for practical use in the diagnosis of various diseases.
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Affiliation(s)
- I-K Lee
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 136-791, Republic of Korea.
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20
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Masuda Y, Inami W, Miyakawa A, Kawata Y. Cell culture on hydrophilicity-controlled silicon nitride surfaces. World J Microbiol Biotechnol 2015; 31:1977-82. [PMID: 26415963 DOI: 10.1007/s11274-015-1946-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 09/09/2015] [Indexed: 11/30/2022]
Abstract
Cell culture on silicon nitride membranes is required for atmospheric scanning electron microscopy, electron beam excitation assisted optical microscopy, and various biological sensors. Cell adhesion to silicon nitride membranes is typically weak, and cell proliferation is limited. We increased the adhesion force and proliferation of cultured HeLa cells by controlling the surface hydrophilicity of silicon nitride membranes. We covalently coupled carboxyl groups on silicon nitride membranes, and measured the contact angles of water droplets on the surfaces to evaluate the hydrophilicity. We cultured HeLa cells on the coated membranes and evaluated stretch of the cell. Cell migration and confluence were observed on the coated silicon nitride films. We also demonstrated preliminary observation result with direct electron beam excitation-assisted optical microscope.
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Affiliation(s)
- Yuriko Masuda
- Shizuoka University, Johoku 3-5-1, Naka, Hamamatsu, 432-8561, Japan
| | - Wataru Inami
- Shizuoka University, Johoku 3-5-1, Naka, Hamamatsu, 432-8561, Japan
| | - Atsuo Miyakawa
- Shizuoka University, Johoku 3-5-1, Naka, Hamamatsu, 432-8561, Japan
| | - Yoshimasa Kawata
- Shizuoka University, Johoku 3-5-1, Naka, Hamamatsu, 432-8561, Japan.
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21
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Jang HJ, Ahn J, Kim MG, Shin YB, Jeun M, Cho WJ, Lee KH. Electrical signaling of enzyme-linked immunosorbent assays with an ion-sensitive field-effect transistor. Biosens Bioelectron 2014; 64:318-23. [PMID: 25240958 DOI: 10.1016/j.bios.2014.09.020] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 09/02/2014] [Accepted: 09/06/2014] [Indexed: 01/27/2023]
Abstract
Optical laboratory-based immunoassays, such as enzyme-linked immunosorbent assay (ELISA) give a high sensitivity and specificity of various fatal diseases. However, these assays are no longer efficient in on-spot diagnostics of wide-spreading and contagious infections. At this point in time, portable and handhold devices play a pivotal role in infectious diseases with quick diagnostics at or near the site of the disease propagation. In this paper, we demonstrated a novel electrical immunoassay of ELISA that was not based on optical signaling but on electrical signaling. This was done by combining an ion-sensitive field-effect transistor (ISFET) with ELISA. By harnessing the catalytic reaction of alkaline phosphatase that precipitated silver particles, we effectively overcame the chronic Debye screening length issue of the ISFET. Ultimately, small signal ranging from 1 pg/mL to 10 ng/mL was immensely amplified with the ALP label, regardless of buffer conditions. The sensor platform herein surpassed a sensing capability of conventional ELISA that is considered to have a LOD on the order of ~1 ng/mL. The results were compared with those of horseradish peroxidase label, which is generally used for optical analyses in ELISA. Our newly developed ISFET-based portable sensor holds a large potential for point-of-care tools in a variety of diseases, without being limited by the need for expensive equipment such as spectrophotometers.
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Affiliation(s)
- Hyun-June Jang
- Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarangno 14-gil, Seongbuk-gu, Seoul 136-791, Korea; AMC-KIST Translational Research Center (TRC), Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Korea
| | - Junhyoung Ahn
- Department of Nano Manufacturing Technology, Nano Convergence Mechanical Systems Research Division, Korea Institute of Machinery and Materials, 156 Gajeongbuk-Ro, Yuseong-Gu, Daejeon 305-343, Korea
| | - Min-Gon Kim
- Department of Chemistry, Gwangju Institute of Science & Technology, 123 Chemdangwagi-Ro, Buk-Gu, Gwangju 500-712, Korea
| | - Yong-Beom Shin
- Research Center of Integrative Cellulomics, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-Ro, Yuseong-Gu, Daejeon 305-806, Korea
| | - Minhong Jeun
- Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarangno 14-gil, Seongbuk-gu, Seoul 136-791, Korea; AMC-KIST Translational Research Center (TRC), Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Korea
| | - Won-Ju Cho
- Department of Electronic Materials Engineering, Kwangwoon University, 20 Gwangun-ro, Nowon-gu, Seoul 139-701, Korea.
| | - Kwan Hyi Lee
- Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarangno 14-gil, Seongbuk-gu, Seoul 136-791, Korea; AMC-KIST Translational Research Center (TRC), Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Korea.
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22
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Dong JX, Xu C, Wang H, Xiao ZL, Gee S, Li ZF, Wang F, Wu WJ, Shen YD, Yang JY, Sun YM, Hammock BD. Enhanced sensitive immunoassay: noncompetitive phage anti-immune complex assay for the determination of malachite green and leucomalachite green. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:8752-8. [PMID: 25077381 PMCID: PMC4150606 DOI: 10.1021/jf5019824] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
To develop a more sensitive immunoassay for malachite green (MG) and leucomalachite green (LMG), we identified the immunocomplex binding phage-borne peptides for use in the noncompetitive phage anti-immunocomplex assay (PHAIA). An anti-LMG monoclonal antibody (mAb) was used to select immunocomplex binding peptides from a circular random eight-amino-acid phage-displayed library. After three rounds of panning-elution, five peptides that bound the LMG-mAb immunocomplex were obtained. One of the phage-borne peptide clones that resulted in an assay with the highest sensitivity was chosen for further research. The concentration of LMG producing 50% of the saturated signal and the limit of detection of the assay were 7.02 and 0.55 ng/mL, respectively, with a linear range of 1.35 to 21.56 ng/mL. The PHAIA based on the same antibody was 16 times more sensitive compared to the competitive immunoassay. PHAIA was used to analyze LMG, MG, and two mixtures of spiked fish samples, with validation by high-performance liquid chromatography (HPLC) with fluorescence detector. Results showed a good correlation (R(2)LMG = 0.9841; R(2)MG = 0.993; R(2)Mixture = 0.9903) between the data of PHAIA and HPLC, thus the assay was an efficient method for monitoring food safety.
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Affiliation(s)
- Jie-Xian Dong
- Guangdong
Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
- Department
of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Chao Xu
- Guangdong
Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Hong Wang
- Guangdong
Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
- E-mail: (H.W.). Tel.: (+86)-020-8528-3448
| | - Zhi-Li Xiao
- Guangdong
Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Shirley
J. Gee
- Department
of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
| | - Zhen-Feng Li
- Guangdong
Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Feng Wang
- Guangdong
Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Wei-Jian Wu
- Guangdong
Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Yu-Dong Shen
- Guangdong
Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Jin-Yi Yang
- Guangdong
Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
| | - Yuan-Ming Sun
- Guangdong
Provincial Key Laboratory of Food Quality and Safety, South China Agricultural University, Guangzhou 510642, China
- E-mail: (Y.-M.S.)
| | - Bruce D. Hammock
- Department
of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California, Davis, California 95616, United States
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23
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Miyazawa Y, Sakata T. Molecular charge contact biosensing based on the interaction of biologically modified magnetic beads with an ion-sensitive field effect transistor. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2014; 43:217-25. [DOI: 10.1007/s00249-014-0948-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 02/15/2014] [Accepted: 02/18/2014] [Indexed: 11/28/2022]
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24
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Ohmuro-Matsuyama Y, Nakano K, Kimura A, Ayabe K, Ihara M, Wada T, Ueda H. A protein-protein interaction assay based on the functional complementation of mutant firefly luciferases. Anal Chem 2013; 85:7935-40. [PMID: 23902573 DOI: 10.1021/ac4016825] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a novel bioluminescent protein-protein interaction (PPI) assay, which is based on the functional complementation of two mutant firefly luciferases (Fluc). The chemical reaction catalyzed by Fluc is divided into two half reactions of ATP-driven luciferin adenylation and subsequent oxidative reactions. In the former adenylation half-reaction, a luciferyl-adenylate (LH2-AMP) intermediate is produced from LH2 and ATP. With this intermediate, the latter oxidative reactions produce oxyluciferin via proton abstraction at the C4 carbon of LH2-AMP. We created and optimized two Fluc mutants; one is named "Donor", which virtually lacks oxidative activity, while the other, named "Acceptor", is almost defective in the adenylation activity. Then, the two mutants are fused to interacting partners, and prepared as pure proteins. When the interaction between the partners is induced, higher efficiency of LH2-AMP transfer between the Donor and Acceptor enzymes resulted in increased luminescence. The assay was found to work both in vitro and in cultured cells with strong signals. This would be the first example of reconstituting two divided reactions of one enzyme to detect PPI, which will not only be utilized as a robust PPI assay, but also open a way to control the activity of similar enzymes in acyl/adenylate-forming enzyme superfamily.
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Affiliation(s)
- Yuki Ohmuro-Matsuyama
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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25
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Hara Y, Dong J, Ueda H. Open-sandwich immunoassay for sensitive and broad-range detection of a shellfish toxin gonyautoxin. Anal Chim Acta 2013; 793:107-13. [PMID: 23953213 DOI: 10.1016/j.aca.2013.07.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 06/17/2013] [Accepted: 07/08/2013] [Indexed: 11/29/2022]
Abstract
At present, the analytical method for paralytic shellfish poisoning (PSP) toxins in shellfish is the mouse bioassay (MBA), which is an official method of the Association of Analytical Communities (AOAC [8]). However, the low sensitivity and concerns over the number of live animals required for testing have been cited as the major reason for seeking its replacement. In this report, we employed an open-sandwich immunoassay (OS-IA) to detect gonyautoxin (GTX2/3), a kind of PSP toxins. OS-IA, which utilizes the antigen-induced enhancement of antibody VH/VL interaction, can measure a small molecule antigen in a noncompetitive format. Hence it has a wider working range and shorter measurement time. We isolated anti-GTX2/3 antibody gene from a hybridoma GT-13A by screening a Fab-displaying phage library. Then the vectors for OS-IA were constructed, and examined for antigen concentration-dependency of the VH/VL interaction by OS-ELISA. As a result, in each case, signal intensity increases notably in a wide concentration range (0.1 to >1000 ng mL(-1)) of free GTX2/3, which was enough to cover its regulation value (80 μg 100 g(-1)) in many countries. So OS-IA will be widely applicable to detect PSP toxins in shellfish meats and in drinking water.
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Affiliation(s)
- Yuko Hara
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
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26
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Sakata T, Fukuda R. Simultaneous biosensing with quartz crystal microbalance with a dissipation coupled-gate semiconductor device. Anal Chem 2013; 85:5796-800. [PMID: 23662927 DOI: 10.1021/ac400468m] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, we proposed and demonstrated a novel simultaneous analysis system of biosensing by combining a semiconductor-based field effect transistor (FET) with quartz crystal microbalance with a dissipation (QCM-D) monitoring system. Using the combined system, the changes of not only mass and viscoelasticity but also electrical charge for interaction of charged dextran molecules with substrate, recognition of glucose with low molecular weight, and programmed cell death, apoptosis, were simultaneously and quantitatively monitored in a label-free and real-time manner. The combined system will give more detailed information of biomolecule/substrate interface for development of new biomaterial.
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Affiliation(s)
- Toshiya Sakata
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Tokyo, Japan 113-8656.
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27
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HASAN S, DONG J, HARA Y, MORIZANE Y, SHIBASAKI F, UEDA H. Protein-based Open Sandwich Immuno-PCR for Sensitive Detection of Small Biomarkers. ANAL SCI 2013; 29:871-6. [DOI: 10.2116/analsci.29.871] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Sharif HASAN
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo
| | - Jinhua DONG
- Chemical Resources Laboratory, Tokyo Institute of Technology
| | - Yuko HARA
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo
- Chemical Resources Laboratory, Tokyo Institute of Technology
| | - Yoshihito MORIZANE
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science
| | - Futoshi SHIBASAKI
- Department of Molecular Medical Research, Tokyo Metropolitan Institute of Medical Science
| | - Hiroshi UEDA
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo
- Chemical Resources Laboratory, Tokyo Institute of Technology
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28
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Goda T, Miyahara Y. Interpretation of protein adsorption through its intrinsic electric charges: a comparative study using a field-effect transistor, surface plasmon resonance, and quartz crystal microbalance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:14730-8. [PMID: 22992058 DOI: 10.1021/la302977s] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We describe the highly sensitive detection of the nonspecific adsorption of proteins onto a 1-undecanethiol self-assembled monolayer (SAM)-formed gold electrode by parallel analysis using field effect transistor (FET), surface plasmon resonance (SPR), and quartz crystal microbalance (QCM) sensors. The FET sensor detects the innate electric charges of the adsorbed protein at the electrode/solution interface, transforming the change in charge density into a potentiometric signal in real time, without the requirement for labels. In particular, using the Debye-Huckel model, the degree of potential shift was proportional to the dry mass of adsorbed albumin and β-casein. A comparison of the FET signal with SPR and QCM data provided information on the conformation and orientation of the surface-bound protein by observing characteristic break points in the correlation slopes between the signals. These slope transitions reflect a multistage process that occurs upon protein adsorption as a function of protein concentration, including interim coverage, film dehydration, and monolayer condensation. The FET biosensor, in combination with SPR and QCM, represents a new technology for interrogating protein-material interactions both quantitatively and qualitatively.
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Affiliation(s)
- Tatsuro Goda
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan.
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29
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30
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Detection of small molecule diagnostic markers with phage-based open-sandwich immuno-PCR. J Immunol Methods 2012; 377:1-7. [PMID: 22269771 DOI: 10.1016/j.jim.2012.01.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 12/22/2011] [Accepted: 01/06/2012] [Indexed: 11/24/2022]
Abstract
Open sandwich immunoassay (OS-IA) utilizes antigen-dependent stabilization of antibody variable region to quantify various antigens, enabling noncompetitive detection of small molecules with a broad working range. To further improve its detection sensitivity, here we employed phage-based immuno-PCR approach, wherein OS-IA and quantitative PCR methodologies were combined with the use of immobilized V(L) fusion protein and filamentous phages displaying V(H) fragment, whose DNA was extracted for PCR amplification. This approach significantly enhanced the assay sensitivity for small molecule antigens osteocalcin (BGP) peptide and 17beta-estradiol.
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31
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Abe K, Ogasawara D, Yoshida W, Sode K, Ikebukuro K. Aptameric sensors based on structural change for diagnosis. Faraday Discuss 2011; 149:93-105; discussion 137-57. [PMID: 21413176 DOI: 10.1039/c005359g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aptamers are nucleic acids that can bind to various molecules. Because they have some features that are lacking in antibodies, aptamers could serve as alternatives to antibodies. For the purpose of biosensing, we focused on aptamers that undergo structural changes on binding to their target molecules. We constructed an aptamer-based bound/free (B/F) separation system that uses a designed aptamer named the "capturable aptamer". The capturable aptamer changes its structure upon recognizing its target molecule thereby exposing a specific single-strand region. The oligonucleotide that is complementary to this exposed region, named the "capture DNA" is immobilized on a support. This design permits the exclusive capture by the capture DNA of the aptamer bound to its target, and subsequent removal of any unbound aptamer and contaminants by B/F separation. The removal of unbound contaminants or aptamers results in highly sensitive detection at similar levels to those achievable by sandwich-based immunoassay. We describe the construction of a thrombin-detection system by using a capturable aptamer, and we discuss the potential of capturable aptamers in clinical diagnostics.
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Affiliation(s)
- Koichi Abe
- Department of Biotechnology, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei-shi, Tokyo 184-8588, Japan
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Islam KN, Ihara M, Dong J, Kasagi N, Mori T, Ueda H. Direct Construction of an Open-Sandwich Enzyme Immunoassay for One-Step Noncompetitive Detection of Thyroid Hormone T4. Anal Chem 2011; 83:1008-14. [DOI: 10.1021/ac102801r] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Noriyuki Kasagi
- Lifescience Laboratory R&D, Fujifilm Co., 577 Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa, 258-8577, Japan
| | - Toshihiro Mori
- Lifescience Laboratory R&D, Fujifilm Co., 577 Ushijima, Kaisei-machi, Ashigarakami-gun, Kanagawa, 258-8577, Japan
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Lee J, Jo M, Kim TH, Ahn JY, Lee DK, Kim S, Hong S. Aptamer sandwich-based carbon nanotube sensors for single-carbon-atomic-resolution detection of non-polar small molecular species. LAB ON A CHIP 2011; 11:52-56. [PMID: 20967396 DOI: 10.1039/c0lc00259c] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A portable sensor platform for the detection of small molecular species is crucial for the on-site monitoring of environmental pollutants, food toxicants, and disease-related metabolites. However, it is still extremely difficult to find highly selective and sensitive sensor platforms for general small molecular detection. Herein, we report aptamer sandwich-based carbon nanotube sensor strategy for small molecular detection, where aptamers were utilized to capture target molecules as well as to enhance the sensor signals. We successfully demonstrated the detection of non-polar bisphenol A molecules with a 1 pM sensitivity. Significantly, our sensors were able to distinguish between similar small molecular species with single-carbon-atomic resolution. Furthermore, using the additional biotin modification on labeling aptamer, we enhanced the detection limit of our sensors down to 10 fM. This strategy allowed us to detect non-polar small molecular species using carbon nanotube transistors, thus overcoming the fundamental limitation of field effect transistor-based sensors. Considering the extensive applications of sandwich assay for the detection of rather large biomolecules, our results should open up completely new dimension in small molecular detection technology and should enable a broad range of applications such as environmental protection and food safety.
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Affiliation(s)
- Joohyung Lee
- Department of Physics and Astronomy, Seoul National University, Seoul, 151-742, Korea
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Goda T, Miyahara Y. Molecularly Engineered Charge-Conversion of Proteins for Sensitive Biosensing. Anal Chem 2010; 82:8946-53. [DOI: 10.1021/ac1018233] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Tatsuro Goda
- Biomaterials Center and International Center for Material and Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Yuji Miyahara
- Biomaterials Center and International Center for Material and Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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35
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Micro open-sandwich ELISA to rapidly evaluate thyroid hormone concentration from serum samples. Bioanalysis 2010; 2:1683-7. [DOI: 10.4155/bio.10.125] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Thyroxine (T4) is the most commonly measured thyroid hormone for the diagnosis of thyroid function. To elucidate a rapid and sensitive assay for T4, we made a microfluidics-based noncompetitive immunodetection chip system using anti-T4 antibody fragments obtained from a phage display library. Results: Based on the open-sandwich ELISA principle that detects antigen-dependency of the interaction between the two antibody variable regions VH and VL, we could detect less than 1 ng/ml of T4. The assay was also successfully applied to evaluate total T4 concentration in the serum of healthy individuals. Conclusion: This would be the first micro open-sandwich ELISA constructed with antibody fragments directly selected from immunized mice. The system will be applied to the sensitive detection of many diagnostic markers.
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Ihara M, Suzuki T, Kobayashi N, Goto J, Ueda H. Open-sandwich enzyme immunoassay for one-step noncompetitive detection of corticosteroid 11-deoxycortisol. Anal Chem 2010; 81:8298-304. [PMID: 19778030 DOI: 10.1021/ac900700a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A noncompetitive immunoassay has the potential for improved sensitivity and working range compared with corresponding competitive assays. However, monovalent antigens with less than 1000 in molecular weight are not susceptible to sandwich assays due to their small size. As a noncompetitive immunoassay that can be performed with a clone of an antibody, an open-sandwich immunoassay (OS-IA) based on the antigen-dependent stabilization of the antibody variable region (V(H) + V(L)) was applied to the quantification of 11-deoxycortisol (11-DC; M(r) 346.5), a corticosteroid serving as a diagnostic index for pituitary-adrenal function, as a model target hapten. By one step OS-IA detection of enzyme-labeled V(H) fragment bound to immobilized V(L) in the presence of sample in microplate wells, 11-DC was measured with a femtomolar detection limit and the working range was wider than that with corresponding competitive assay. In addition, the selectivity against analogues was found almost identical to that of conventional assays. The effect of the mutagenesis of a V(H) residue at the V(H)/V(L) interface to reduce background signal was also shown, implying the wider application of OS-IA in small molecule analyses.
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Affiliation(s)
- Masaki Ihara
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Ihara M, Yoshikawa A, Wu Y, Takahashi H, Mawatari K, Shimura K, Sato K, Kitamori T, Ueda H. Micro OS-ELISA: Rapid noncompetitive detection of a small biomarker peptide by open-sandwich enzyme-linked immunosorbent assay (OS-ELISA) integrated into microfluidic device. LAB ON A CHIP 2010; 10:92-100. [PMID: 20024056 DOI: 10.1039/b915516c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A novel detection system that combines the merits of open-sandwich (OS) enzyme-linked immunoadsorbent assay (ELISA) and a microfluidic sensor chip system, and which enables rapid and noncompetitive immunodetection of small antigens of less than 1000 in molecular weight, has been proposed. Equipped with a sensitive thermal lens microscope, a minute amount of the carboxyl-terminal peptide of human osteocalcin (BGP), a biomarker for bone metabolism, was quantified utilizing antigen-dependent stabilization of an antibody variable region (OS principle). In a short analysis time (approximately 12 min), we could attain a detection limit comparable to that of the microplate-based OS ELISA (1 microg L(-1)). In addition, the effects of several pretreatments for serum-derived samples were investigated: an albumin absorption resin, addition of a protease inhibitor cocktail and heat treatment. Each pretreatment was found to be effective. Consequently, intrinsic BGP and its fragments could be detected in healthy human serum with a superior detection limit and working range compared to those of the conventional competitive ELISA method.
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Affiliation(s)
- Masaki Ihara
- Department of Bioengineering, School of Engineering, The University of Tokyo, Bunkyo, Tokyo, 113-8656, Japan
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