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Liu M, Bai Y, Dou L, Kong Y, Wang Z, Wen K, Shen J. A highly salt-tolerant monoclonal antibody-based enzyme-linked immunosorbent assay for the rapid detection of phenylethanolamine A in urine. FOOD AGR IMMUNOL 2022. [DOI: 10.1080/09540105.2022.2084043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Minggang Liu
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Yuchen Bai
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Leina Dou
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Yihui Kong
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Zhanhui Wang
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Kai Wen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Jianzhong Shen
- Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, Beijing Laboratory for Food Quality and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
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AIEgens functionalized hollow mesoporous silica nanospheres for selective detection of the antimicrobial furazolidone. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Detection of biotin with zeptomole sensitivity using recombinant spores and a competition assay. Anal Bioanal Chem 2020; 412:7219-7226. [PMID: 32761258 DOI: 10.1007/s00216-020-02854-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 07/22/2020] [Accepted: 07/30/2020] [Indexed: 10/23/2022]
Abstract
Detection of protein-binding analytes is important for many applications. Currently, various instrument-based techniques are used for detecting protein-binding analytes. However, such techniques have several limitations including high cost and time-consuming sample processing. In order to overcome these limitations, we developed a sensitive competition assay for the detection of protein-binding analytes using recombinant endospores as a sensing element. The method is based on the competition between the biotin, the model analyte, and a biotin-magnetic bead complex to bind the recombinant spores containing the biotin binding region of streptavidin. After magnetic attraction, the residual spores in the suspension are spread on plates to form colonies which are used to count the amount of the residual spores; the higher the residual ratio of spores, the more biotin in the samples. The linear range was from 150 zmol to 1.5 fmol and the limit of detection of the assay was 150 zmol. The assay proposed herein is sensitive and does not require any expensive equipment. It is suitable for qualitative or semi-quantitative analysis such as screening tests for the detection of toxic chemicals.
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Gu C, Ren P, Zhang F, Zhao G, Shen J, Zhao B. Detection of Six β-Agonists by Three Multiresidue Immunosensors Based on an Anti-bovine Serum Albumin-Ractopamine-Clenbuterol-Salbutamol Antibody. ACS OMEGA 2020; 5:5548-5555. [PMID: 32201848 PMCID: PMC7081638 DOI: 10.1021/acsomega.0c00249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 02/25/2020] [Indexed: 06/01/2023]
Abstract
According to an indirect competitive immunoassay, six β-agonists (clenbuterol (CL), salbutamol (SAL), ractopamine (RAC), terbutaline (TER), mabuterol (MAB), and tulobuterol (TUL)) were detected by three novel multiresidue immunosensors on the basis of the successful preparation of bovine serum albumin (BSA)-RAC-CL-SAL multideterminant antigen and anti-BSA-RAC-CL-SAL antibody. A new strategy was reported to detect six β-agonists by combining nanotechnology, electrochemical detection, and specific immune technology. At the same concentration, the amperometric response for detection of six β-agonists was in a sequence of GCE/GNP/SAL > GCE/GNP/RAC > GCE/GNP/CL. Detection limits of six β-agonists show that the multiresidue detection performance of the GCE/GNP/RAC immunosensor is better than those of GCE/GNP/SAL and GCE/GNP/CL immunosensors. Three immunosensors manifest superior properties with a wide linear range, low detection limit, excellent reproducibility, and stability. The proposed GCE/GNP/RAC immunosensor displays high accuracy and can be effectively used for real sample detection.
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Affiliation(s)
- Chenxi Gu
- National
and Local Joint Engineering Research Center of Biomedical Functional
Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Pengfei Ren
- National
and Local Joint Engineering Research Center of Biomedical Functional
Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Fan Zhang
- National
and Local Joint Engineering Research Center of Biomedical Functional
Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Guozheng Zhao
- Key
Laboratory of Magnetic Molecules & Magnetic Information Materials
Ministry of Education, The School of Chemistry and Material Science, Shanxi Normal University, Linfen 041004, China
| | - Jian Shen
- National
and Local Joint Engineering Research Center of Biomedical Functional
Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Bo Zhao
- National
and Local Joint Engineering Research Center of Biomedical Functional
Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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A sensitive label-free immunosensor for alpha fetoprotein detection using platinum nanodendrites loaded on functional MoS2 hybridized polypyrrole nanotubes as signal amplifier. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.01.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Zhang Y, Pan D, Zhou Q, Zhao J, Pan N, Zhang Y, Wang LX, Shen Y. An enzyme cascade-based electrochemical immunoassay using a polydopamine-carbon nanotube nanocomposite for signal amplification. J Mater Chem B 2018; 6:8180-8187. [PMID: 32254937 DOI: 10.1039/c8tb02659a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
By coupling tyrosinase (Tyr) and β-galactosidase (Gal) into one redox-cycling scheme, an enzyme cascade-based electrochemical immunosensor with boosted selectivity and sensitivity was constructed using polydopamine-functionalized multiwalled carbon nanotube (MWCNTs-PDA) nanohybrid modified electrodes. The MWCNTs-PDA nanohybrid presented a 5 times enhanced capability for antibody conjugation, which was responsible for signal amplification. In the proposed enzyme cascade scheme, Gal was captured on the immunosensor surface by a sandwiched immunoreaction, which catalyzed phenyl β-d-galactopyranoside (P-GP) into phenol based on a hydrolysis reaction. The resulting phenol was used as a substrate of Tyr, which was catalyzed to catechol and subsequently to o-quinone. The o-quinone was then electrochemically reduced to catechol, forming a redox cycle between catechol and o-quinone. The enzyme cascade-based immunoassay not only significantly amplified the electrochemical signal, but also led to a high selectivity. Taking the detection of CEA as an example, the enzyme cascade-based electrochemical immunosensor showed a detectable range of 10 pg mL-1 to 10 ng mL-1 and a low detection limit of 8.39 pg mL-1 (S/N = 3), which was superior/comparable to those using other methodologies in previous reports. The selectivity of the enzyme cascade-based immunosensor was 44-80% higher than that of a single enzyme-based immunosensor. This work shows great potential of the coupling enzyme cascade in immunosensing for clinical diagnosis with boosted selectivity and sensitivity.
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Affiliation(s)
- Yue Zhang
- Medical School, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210009, China.
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Scala-Benuzzi ML, Takara EA, Alderete M, Soler-Illia GJ, Schneider RJ, Raba J, Messina GA. Ethinylestradiol quantification in drinking water sources using a fluorescent paper based immunosensor. Microchem J 2018. [DOI: 10.1016/j.microc.2018.05.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Economou A, Kokkinos C, Prodromidis M. Flexible plastic, paper and textile lab-on-a chip platforms for electrochemical biosensing. LAB ON A CHIP 2018; 18:1812-1830. [PMID: 29855637 DOI: 10.1039/c8lc00025e] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Flexible biosensors represent an increasingly important and rapidly developing field of research. Flexible materials offer several advantages as supports of biosensing platforms in terms of flexibility, weight, conformability, portability, cost, disposability and scope for integration. On the other hand, electrochemical detection is perfectly suited to flexible biosensing devices. The present paper reviews the field of integrated electrochemical bionsensors fabricated on flexible materials (plastic, paper and textiles) which are used as functional base substrates. The vast majority of electrochemical flexible lab-on-a-chip (LOC) biosensing devices are based on plastic supports in a single or layered configuration. Among these, wearable devices are perhaps the ones that most vividly demonstrate the utility of the concept of flexible biosensors while diagnostic cards represent the state-of-the art in terms of integration and functionality. Another important type of flexible biosensors utilize paper as a functional support material enabling the fabrication of low-cost and disposable paper-based devices operating on the lateral flow, drop-casting or folding (origami) principles. Finally, textile-based biosensors are beginning to emerge enabling real-time measurements in the working environment or in wound care applications. This review is timely due to the significant advances that have taken place over the last few years in the area of LOC biosensors and aims to direct the readers to emerging trends in this field.
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Development of an automated wax-printed paper-based lateral flow device for alpha-fetoprotein enzyme-linked immunosorbent assay. Biosens Bioelectron 2018; 102:27-32. [DOI: 10.1016/j.bios.2017.10.051] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 12/28/2022]
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