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Fattahi Z, Hasanzadeh M. Nanotechnology-assisted microfluidic systems platform for chemical and bioanalysis. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116637] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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2
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Liu X, Zhang Q, Knoll W, Liedberg B, Wang Y. Rational Design of Functional Peptide-Gold Hybrid Nanomaterials for Molecular Interactions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2000866. [PMID: 32743897 DOI: 10.1002/adma.202000866] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/21/2020] [Indexed: 05/12/2023]
Abstract
Gold nanoparticles (AuNPs) have been extensively used for decades in biosensing-related development due to outstanding optical properties. Peptides, as newly realized functional biomolecules, are promising candidates of replacing antibodies, receptors, and substrates for specific molecular interactions. Both peptides and AuNPs are robust and easily synthesized at relatively low cost. Hence, peptide-AuNP-based bio-nano-technological approaches have drawn increasing interest, especially in the field of molecular targeting, cell imaging, drug delivery, and therapy. Many excellent works in these areas have been reported: demonstrating novel ideas, exploring new targets, and facilitating advanced diagnostic and therapeutic technologies. Importantly, some of them also have been employed to address real practical problems, especially in remote and less privileged areas. This contribution focuses on the application of peptide-gold hybrid nanomaterials for various molecular interactions, especially in biosensing/diagnostics and cell targeting/imaging, as well as for the development of highly active antimicrobial/antifouling coating strategies. Rationally designed peptide-gold nanomaterials with functional properties are discussed along with future challenges and opportunities.
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Affiliation(s)
- Xiaohu Liu
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Xinsan Road 16, Wenzhou, 325001, China
| | - Qingwen Zhang
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Xinsan Road 16, Wenzhou, 325001, China
| | - Wolfgang Knoll
- Austrian Institute of Technology, Giefinggasse 4, Vienna, 1210, Austria
| | - Bo Liedberg
- Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yi Wang
- School of Biomedical Engineering, School of Ophthalmology & Optometry, Wenzhou Medical University, Xueyuan Road 270, Wenzhou, 325027, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Xinsan Road 16, Wenzhou, 325001, China
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Guevara-Pantoja PE, Sánchez-Domínguez M, Caballero-Robledo GA. Micro-nanoparticles magnetic trap: Toward high sensitivity and rapid microfluidic continuous flow enzyme immunoassay. BIOMICROFLUIDICS 2020; 14:014111. [PMID: 32038740 PMCID: PMC6992449 DOI: 10.1063/1.5126027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 01/20/2020] [Indexed: 05/13/2023]
Abstract
In this work, we developed a microfluidic system for immunoassays where we combined the use of magnetic nanoparticles as immunosupport, a microfluidic magnetic trap, and a fluorogenic substrate in continuous flow for detection which, together with the optimization of the functionalization of surfaces to minimize nonspecific interactions, resulted in a detection limit in the order of femtomolar and a total assay time of 40 min for antibiotin antibody detection. A magnetic trap made of carbonyl-iron microparticles packaged inside a 200 μ m square microchannel was used to immobilize and concentrate nanoparticles. We functionalized the surface of the iron microparticles with a silica-polyethylene glycol (PEG) shell to avoid corrosion and unspecific protein binding. A new one-step method was developed to coat acrylic microchannels with an organofunctional silane functionalized with PEG to minimize unspecific binding. A model immunoassay was performed using nanoparticles decorated with biotin to capture antibiotin rabbit Immunoglobulin G (IgG) as target primary antibody. The detection was made using antirabbit IgG labeled with the enzyme alkaline phosphatase as a secondary antibody, and we measured fluorescence with a fluorescence microscope. All steps of the immunoassay were performed inside the chip. A calibration curve was obtained in which a detection limit of 8 pg/ml of antibiotin antibody was quantified. The simplicity of the device and the fact that it is made of acrylic, which is compatible with mass production, make it ideal for Point-Of-Care applications.
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Affiliation(s)
| | - Margarita Sánchez-Domínguez
- Centro de Investigación en Materiales Avanzados, S.C. (CIMAV), Unidad Monterrey, Alianza Norte 202, Parque de Investigación e Innovación Tecnológica, Apodaca 66628, Nuevo León, Mexico
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A flow-proteometric platform for analyzing protein concentration (FAP): Proof of concept for quantification of PD-L1 protein in cells and tissues. Biosens Bioelectron 2018; 117:97-103. [DOI: 10.1016/j.bios.2018.05.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 05/15/2018] [Accepted: 05/28/2018] [Indexed: 02/06/2023]
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5
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Eivazzadeh-Keihan R, Pashazadeh-Panahi P, Baradaran B, Guardia MDL, Hejazi M, Sohrabi H, Mokhtarzadeh A, Maleki A. Recent progress in optical and electrochemical biosensors for sensing of Clostridium botulinum neurotoxin. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.03.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Weingart OG, Loessner MJ. Nerve cell-mimicking liposomes as biosensor for botulinum neurotoxin complete physiological activity. Toxicol Appl Pharmacol 2016; 313:16-23. [PMID: 27743862 DOI: 10.1016/j.taap.2016.10.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 09/02/2016] [Accepted: 10/10/2016] [Indexed: 10/20/2022]
Abstract
Botulinum neurotoxins (BoNT) are the most toxic substances known, and their neurotoxic properties and paralysing effects are exploited for medical treatment of a wide spectrum of disorders. To accurately quantify the potency of a pharmaceutical BoNT preparation, its physiological key activities (binding to membrane receptor, translocation, and proteolytic degradation of SNARE proteins) need to be determined. To date, this was only possible using animal models, or, to a limited extent, cell-based assays. We here report a novel in vitro system for BoNT/B analysis, based on nerve-cell mimicking liposomes presenting motoneuronal membrane receptors required for BoNT binding. Following triggered membrane translocation of the toxin's Light Chain, the endopeptidase activity can be quantitatively monitored employing a FRET-based reporter assay within the functionalized liposomes. We were able to detect BoNT/B physiological activity at picomolar concentrations in short time, opening the possibility for future replacement of animal experimentation in pharmaceutical BoNT testing.
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Affiliation(s)
- Oliver G Weingart
- Institute for Food, Nutrition and Health, ETH Zurich, Schmelzbergstrasse 7, CH-8092 Zurich, Switzerland.
| | - Martin J Loessner
- Institute for Food, Nutrition and Health, ETH Zurich, Schmelzbergstrasse 7, CH-8092 Zurich, Switzerland
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Development of an Innovative in Vitro Potency Assay for Anti-Botulinum Antitoxins. Toxins (Basel) 2016; 8:toxins8100276. [PMID: 27669303 PMCID: PMC5086636 DOI: 10.3390/toxins8100276] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/14/2016] [Accepted: 09/19/2016] [Indexed: 11/17/2022] Open
Abstract
Botulinum neurotoxins are bacterial proteins that cause botulism, a life-threatening disease. Therapy relies mostly on post-intoxication antibody treatment. The only accepted method to measure the potency of, and to approve, antitoxin preparations is the mouse lethality neutralization bioassay. However, this assay is time-consuming, labor-intensive, costly, and raises ethical issues related to the large numbers of laboratory animals needed. Until now, all efforts to develop an alternative in vitro assay have not provided a valid replacement to the mouse potency assay. In the present study, we report the development of an innovative in vitro assay for determining botulinum antitoxin potency, using botulinum type B as a model. The concept of the assay is to mimic two fundamental steps in botulinum intoxication: receptor binding and catalytic activity. By simulating these steps in vitro we were able to accurately determine the potency of antitoxin preparations. The reproducibility of the assay was high with a CV < 13%. Most importantly, the antitoxin potency measured by the in vitro assay highly correlated with that measured by the standard in vivo mouse assay (r = 0.9842, p < 0.0001). Thus, this new in vitro assay has the potential to be considered, after validation, as a replacement to the mouse assay for quantitating neutralizing antibody concentrations in pharmaceutical botulinum antitoxin preparations. Future adoption of this in vitro assay would minimize the use of laboratory animals, speed up the time, and reduce the cost of botulinum antitoxin approval.
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Shi J, Guo J, Bai G, Chan C, Liu X, Ye W, Hao J, Chen S, Yang M. A graphene oxide based fluorescence resonance energy transfer (FRET) biosensor for ultrasensitive detection of botulinum neurotoxin A (BoNT/A) enzymatic activity. Biosens Bioelectron 2014; 65:238-44. [PMID: 25461164 DOI: 10.1016/j.bios.2014.10.050] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 10/17/2014] [Accepted: 10/20/2014] [Indexed: 11/18/2022]
Abstract
Botulinum neurotoxins (BoNTs) are among the most potent toxic bacterial proteins for humans, which make them potential agents for bioterrorism. Therefore, an ultrasensitive detection of BoNTs and their active states is in great need as field-deployable systems for anti-terrorism applications. We report the construction of a novel graphene oxide (GO)-peptide based fluorescence resonance energy transfer (FRET) biosensor for ultrasensitive detection of the BoNT serotype A light chain (BoNT-LcA) protease activity. A green fluorescence protein (GFP) modified SNAP-25 peptide substrate (SNAP-25-GFP) was optimally designed and synthesized with the centralized recognition/cleavage sites. This FRET platform was constructed by covalent immobilization of peptide substrate on GO with BSA passivation which have advantages of low non-specific adsorption and high stability in protein abundant solution. BoNT-LcA can specifically cleave SNAP-25-GFP substrate covalently immobilized on GO to release the fragment with GFP. Based on fluorescence signal recovery measurement, the target BoNT-LcA was detected sensitively and selectively with the linear detection range from 1fg/mL to 1pg/mL. The limit of detection (LOD) for BoNT-LcA is around 1fg/mL.
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Affiliation(s)
- Jingyu Shi
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, PR China
| | - Jiubiao Guo
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, PR China
| | - Gongxun Bai
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, PR China
| | - Chunyu Chan
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, PR China
| | - Xuan Liu
- Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong, PR China
| | - Weiwei Ye
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, PR China
| | - Jianhua Hao
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, PR China
| | - Sheng Chen
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, PR China
| | - Mo Yang
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, PR China.
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Zhang Z, Yu L, Xu L, Hu X, Li P, Zhang Q, Ding X, Feng X. Biotoxin sensing in food and environment via microchip. Electrophoresis 2014; 35:1547-59. [DOI: 10.1002/elps.201300570] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 02/21/2014] [Accepted: 03/20/2014] [Indexed: 12/23/2022]
Affiliation(s)
- Zhaowei Zhang
- Oil Crops Research Institute; Chinese Academy of Agricultural Sciences; Wuhan China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops; Ministry of Agriculture; Wuhan China
| | - Li Yu
- Oil Crops Research Institute; Chinese Academy of Agricultural Sciences; Wuhan China
- Laboratory of Risk Assessment for Oilseeds Products (Wuhan); Ministry of Agriculture; Wuhan China
| | - Lin Xu
- Oil Crops Research Institute; Chinese Academy of Agricultural Sciences; Wuhan China
- Quality Inspection and Test Center for Oilseeds Products; Ministry of Agriculture; Wuhan China
| | - Xiaofeng Hu
- Oil Crops Research Institute; Chinese Academy of Agricultural Sciences; Wuhan China
- Key Laboratory of Detection for Mycotoxins; Ministry of Agriculture; Wuhan China
| | - Peiwu Li
- Oil Crops Research Institute; Chinese Academy of Agricultural Sciences; Wuhan China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops; Ministry of Agriculture; Wuhan China
- Laboratory of Risk Assessment for Oilseeds Products (Wuhan); Ministry of Agriculture; Wuhan China
- Quality Inspection and Test Center for Oilseeds Products; Ministry of Agriculture; Wuhan China
- Key Laboratory of Detection for Mycotoxins; Ministry of Agriculture; Wuhan China
| | - Qi Zhang
- Oil Crops Research Institute; Chinese Academy of Agricultural Sciences; Wuhan China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops; Ministry of Agriculture; Wuhan China
| | - Xiaoxia Ding
- Key Laboratory of Biology and Genetic Improvement of Oil Crops; Ministry of Agriculture; Wuhan China
- Laboratory of Risk Assessment for Oilseeds Products (Wuhan); Ministry of Agriculture; Wuhan China
| | - Xiaojun Feng
- Britton Chance Center for Biomedical Photonics at Wuhan National Laboratory for Optoelectronics-Hubei Bioinformatics and Molecular Imaging Key Laboratory; Systems Biology Theme, Department of Biomedical Engineering, College of Life Science and Technology; Huazhong University of Science and Technology; Wuhan China
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Tekin HC, Gijs MAM. Ultrasensitive protein detection: a case for microfluidic magnetic bead-based assays. LAB ON A CHIP 2013; 13:4711-39. [PMID: 24145920 DOI: 10.1039/c3lc50477h] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We review the use of magnetic micro- and nanoparticles ('magnetic beads') in microfluidic systems for ultrasensitive protein detection. During recent years magnetic beads have been used frequently in immunoassays, either as mobile substrates on which the target antigen is captured, as detection labels, or simultaneously as substrates and labels. The major part of the reviewed work has as application the detection of antibodies or disease biomarkers in serum or of biotoxins from food samples. Several of the most sensitive assays allow protein detection down to fg mL(-1) concentrations. We benchmark the performance of these microfluidic magnetic bead-based assays with the most promising earlier work and with alternative solutions.
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Affiliation(s)
- H Cumhur Tekin
- Laboratory of Microsystems, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland.
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Ye W, Guo J, Chen S, Yang M. Nanoporous membrane based impedance sensors to detect the enzymatic activity of botulinum neurotoxin A. J Mater Chem B 2013; 1:6544-6550. [PMID: 32261332 DOI: 10.1039/c3tb21152e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Botulinum neurotoxins are among the most potent toxic bacterial proteins for humans and there is a great need to develop simple, rapid and sensitive methods for toxin detection and protease activity quantification in field deployment. In this paper, a nanoporous membrane based impedance sensor was developed to monitor the activity of the BoNT serotype A light chain protease (LcA). Synaptosomal-associated protein 25 (SNAP-25) was first immobilized inside nanopore walls via silane linkers. BoNT LcA was then injected over the nanoporous membrane substrate sensor and specifically cleaved SNAP-25. The cleavage activity could be monitored by measuring impedance signals across nanoporous membranes which represented the nanopore blockage degree. This initial device could achieve a 500 pM LcA detection limit within 25 minutes.
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Affiliation(s)
- Weiwei Ye
- Interdisciplinary Division of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China.
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Affiliation(s)
- Scott Banta
- Department of Chemical Engineering, Columbia University, New York, NY 10027;
| | - Kevin Dooley
- Department of Chemical Engineering, Columbia University, New York, NY 10027;
| | - Oren Shur
- Department of Chemical Engineering, Columbia University, New York, NY 10027;
- Current affiliation: Boston Consulting Group, New York, NY 10022
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Abstract
The integration of nanohole array based plasmonic sensors into microfluidic systems has enabled the emergence of platforms with unique capabilities and a diversified palette of applications. Recent advances in fabrication techniques together with novel implementation schemes have influenced the progress of these optofluidic platforms. Here, we review the advances that nanohole array based sensors have experienced since they were first merged with microfluidics. We examine established and new fabrication methodologies that have enabled both the fabrication of nanohole arrays with improved optical attributes and a reduction in manufacturing costs. The achievements of several platforms developed to date and the significant benefits obtained from operating the nanoholes as nanochannels are also reviewed herein. Finally, we discuss future opportunities for on-chip nanohole array sensors by outlining potential applications and the use of the abilities of the nanostructures beyond the optical context.
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Affiliation(s)
- Carlos Escobedo
- Chemical Engineering Department, Queen's University, Kingston, K7L 3N6, Canada.
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Bok S, Korampally V, Darr CM, Folk WR, Polo-Parada L, Gangopadhyay K, Gangopadhyay S. Femtogram-level detection of Clostridium botulinum neurotoxin type A by sandwich immunoassay using nanoporous substrate and ultra-bright fluorescent suprananoparticles. Biosens Bioelectron 2013; 41:409-16. [DOI: 10.1016/j.bios.2012.08.063] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 08/25/2012] [Accepted: 08/31/2012] [Indexed: 11/24/2022]
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A bioanalytical platform for simultaneous detection and quantification of biological toxins. SENSORS 2012; 12:2324-39. [PMID: 22438766 PMCID: PMC3304168 DOI: 10.3390/s120202324] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Revised: 02/09/2012] [Accepted: 02/20/2012] [Indexed: 12/17/2022]
Abstract
Prevalent incidents support the notion that toxins, produced by bacteria, fungi, plants or animals are increasingly responsible for food poisoning or intoxication. Owing to their high toxicity some toxins are also regarded as potential biological warfare agents. Accordingly, control, detection and neutralization of toxic substances are a considerable economic burden to food safety, health care and military biodefense. The present contribution describes a new versatile instrument and related procedures for array-based simultaneous detection of bacterial and plant toxins using a bioanalytical platform which combines the specificity of covalently immobilized capture probes with a dedicated instrumentation and immuno-based microarray analytics. The bioanalytical platform consists of a microstructured polymer slide serving both as support of printed arrays and as incubation chamber. The platform further includes an easy-to-operate instrument for simultaneous slide processing at selectable assay temperature. Cy5 coupled streptavidin is used as unifying fluorescent tracer. Fluorescence image analysis and signal quantitation allow determination of the toxin's identity and concentration. The system's performance has been investigated by immunological detection of Botulinum Neurotoxin type A (BoNT/A), Staphylococcal enterotoxin B (SEB), and the plant toxin ricin. Toxins were detectable at levels as low as 0.5-1 ng · mL(-1) in buffer or in raw milk.
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Short peptides as biosensor transducers. Anal Bioanal Chem 2011; 402:3055-70. [DOI: 10.1007/s00216-011-5589-8] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Revised: 10/25/2011] [Accepted: 11/20/2011] [Indexed: 12/27/2022]
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