1
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Liu X, Lin X, Pan X, Gai H. Multiplexed Homogeneous Immunoassay Based on Counting Single Immunocomplexes together with Dark-Field and Fluorescence Microscopy. Anal Chem 2022; 94:5830-5837. [PMID: 35380795 DOI: 10.1021/acs.analchem.1c05269] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The development of multiplexed immunoassays is impeded by the difficulty in distinguishing labeled immunocomplexes from free probes and nonspecifically bound probes. Here, we attempted to overcome this issue by counting core-satellite-structured immunocomplexes simultaneously using dark-field and fluorescence microscopy. The tumor biomarkers of carcinoembryonic antigen (CEA), α-fetoprotein (AFP), and prostate-specific antigen (PSA) were chosen as model targets. Gold nanoparticles (AuNPs) with diameters of 70 nm were coated with the detection antibodies of the three targets. Quantum dot (QD) 525, QD 585, and QD 655 were modified with the capture antibodies of CEA, AFP, and PSA, respectively. Then, an immunocomplex containing one AuNP and one or several QDs was formed, whereas free and nonspecifically bound probes had either one AuNP or one QD. When observed with a transmission grating-based spectral microscope, the immunocomplexes had overlapping scattering and fluorescent spectral images and were therefore identified and quantified precisely. The biomarkers inside the immunocomplexes were recognized on the basis of the fluorescent first-order streaks of the QDs. Model biomarkers in buffer and in 12.6% blank plasma were quantified for validation. The limits of detection for CEA, PSA, and AFP in buffer were in dozens of femtomolar and were close to those in blank plasma. The results demonstrated that our approach worked well in distinguishing immunocomplexes from free and nonspecifically bound probes. The successful quantification of the three targets in five human plasma samples verified the reliability of our method in clinical applications.
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Affiliation(s)
- Xiaojun Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Xinyi Lin
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Xiaoyan Pan
- School of Medicine, the Second Affiliated Hospital of Zhejiang University, Hangzhou 310009, Zhejiang, China
| | - Hongwei Gai
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
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2
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Li Y, Wang J, Tian Y, Huang Z, Qian C, Duan Y. The development of a wash-free homogeneous immunoassay method for the detection of tetracycline in environmental samples. Analyst 2021; 146:4918-4926. [PMID: 34250990 DOI: 10.1039/d1an00929j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Antibiotic residues have become the major source of environmental pollutants. In order to monitor tetracycline (TC) in the environment, we have established a highly sensitive and wash-free homogeneous time-resolved immunoassay. This analytical method was based on a rare earth chelate with excellent fluorescence properties. The cryptate organic ligand had good stability and acted as an antenna for Eu3+ excitation. In a homogeneous system, the Eu3+ cryptate complex was used as a label to bind to antibodies. Under the action of immunoaffinity, fluorescent donors and acceptors were close to each other, which induced the FRET effect to produce proportional fluorescence. Under the optimal parameters, the half-inhibitory concentration (IC50) and limit of detection (LOD, IC10) of TC were 0.4188 ng mL-1 and 0.0106 ng mL-1, respectively. The linear range (IC20-IC80) was 0.0273-9.2645 ng mL-1. With the environmental samples, the recovery rate of TC was 84.3-107.2%, and the standard deviation (RSD) was 4.6-12.9%. The results showed the good sensitivity and reliability of the method. Compared with the traditional ELISA, our method has less background interference, only one step was required without the washing procedure, and the detection result can be obtained by 30 min incubation, which improves the detection efficiency. Because of the characteristics of immunoassays, different pollutants can be monitored by changing the antibodies. This method provides an alternative path for detecting environmental pollutants and has the potential to develop into an on-site detection kit.
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Affiliation(s)
- Yinjun Li
- Research Center of Analytical Instrumentation, Northwest University, Xi'an, Shaanxi 710069, China. and Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710069, China
| | - Jiayu Wang
- Research Center of Analytical Instrumentation, Northwest University, Xi'an, Shaanxi 710069, China. and Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710069, China
| | - Yonghui Tian
- Research Center of Analytical Instrumentation, Northwest University, Xi'an, Shaanxi 710069, China. and Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710069, China
| | - Zhijun Huang
- Research Center of Analytical Instrumentation, Northwest University, Xi'an, Shaanxi 710069, China. and Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710069, China
| | - Cheng Qian
- Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, College of Urban and Environmental Sciences, Northwest University, Xi'an, 710127, China
| | - Yixiang Duan
- Research Center of Analytical Instrumentation, Northwest University, Xi'an, Shaanxi 710069, China. and Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, Shaanxi 710069, China
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3
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Liu X, Wu W, Cui D, Chen X, Li W. Functional Micro-/Nanomaterials for Multiplexed Biodetection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2004734. [PMID: 34137090 DOI: 10.1002/adma.202004734] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 11/08/2020] [Indexed: 05/24/2023]
Abstract
When analyzing biological phenomena and processes, multiplexed biodetection has many advantages over single-factor biodetection and is highly relevant to both human health issues and advancements in the life sciences. However, many key problems with current multiplexed biodetection strategies remain unresolved. Herein, the main issues are analyzed and summarized: 1) generating sufficient signal to label targets, 2) improving the signal-to-noise ratio to ensure total detection sensitivity, and 3) simplifying the detection process to reduce the time and labor costs of multiple target detection. Then, available solutions made possible by designing and controlling the properties of micro- and nanomaterials are introduced. The aim is to emphasize the role that micro-/nanomaterials can play in the improvement of multiplexed biodetection strategies. Through analyzing existing problems, introducing state-of-the-art developments regarding relevant materials, and discussing future directions of the field, it is hopeful to help promote necessary developments in multiplexed biodetection and associated scientific research.
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Affiliation(s)
- Xinyi Liu
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Weijie Wu
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Daxiang Cui
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Engineering Research Center for Intelligent Diagnosis and Treatment Instrument, Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Xiaoyuan Chen
- Yong Loo Lin School of Medicine and Faculty of Engineering, National University of Singapore, Singapore, 117597, Singapore
| | - Wanwan Li
- State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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4
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A 15-min non-competitive homogeneous assay for microcystin and nodularin based on time-resolved Förster resonance energy transfer (TR-FRET). Anal Bioanal Chem 2021; 413:6159-6170. [PMID: 34080035 PMCID: PMC8440290 DOI: 10.1007/s00216-021-03375-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/19/2021] [Accepted: 04/26/2021] [Indexed: 11/25/2022]
Abstract
Simple and rapid methods are required for screening and analysis of water samples to detect cyanobacterial cyclic peptide hepatotoxins: microcystin/nodularin. Previously, we reported a highly sensitive non-competitive heterogeneous assay for microcystin/nodularin utilizing a generic anti-immunocomplex (anti-IC) single-chain fragment of antibody variable domains (scFv) isolated from a synthetic antibody library together with a generic adda ((2S,3S,4E,6E,8S,9S)-3-amino-9-methoxy-2,6,8-trimethyl-10-phenyldeca-4,6-dienoic acid)-specific monoclonal antibody (Mab) recognizing the common adda part of the microcystin/nodularin. Using the same antibody pair, here we report a homogeneous non-competitive assay for microcystin/nodularin based on TR-FRET (time-resolved Förster resonance energy transfer) measurement. The anti-IC scFv labeled with Alexa Fluor 680 and the Mab labeled with europium enabled the FRET process to occur in the presence of microcystin/nodularin. The TR-FRET signal is proportional to the toxin concentration in the sample. The rapid (15 min) homogeneous assay without requiring any washing step detected all the tested nine toxin variants (microcystin-LR, -dmLR, -RR, -dmRR, -YR, -LY, -LF -LW, and nodularin-R). Very good signal to blank ratio (~13) was achieved using microcystin-LR and the sample detection limit (blank+3SD of blank) for microcystin-LR was ~0.3 μg/L (~0.08 μg/L in 80-μL reaction well). The practical application of the TR-FRET assay was demonstrated with water samples spiked with microcystin-LR as well as with environmental water. The average recoveries of microcystin-LR from spiked water ranged from 65 to 123%. Good correlation (r2 = 0.73 to 0.99) with other methods (liquid chromatography-mass spectrometry and previously reported heterogeneous assay) was found when environmental samples were analyzed. The developed wash-free assay has the potential to play as a quick screening tool to detect microcystin/nodularin from water below the World Health Organization’s guideline limit (1 μg/L of microcystin-LR).
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5
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Zhang L, Lv Q, Zheng Y, Chen X, Kong D, Huang W, Liu P, Jiang H, Jiang Y. A rapid and accurate method for screening T-2 toxin in food and feed using competitive AlphaLISA. FEMS Microbiol Lett 2021; 368:6184045. [PMID: 33755724 DOI: 10.1093/femsle/fnab029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/19/2021] [Indexed: 01/01/2023] Open
Abstract
T-2 is a common mycotoxin contaminating cereal crops. Chronic consumption of food contaminated with T-2 toxin can lead to death, so simple and accurate detection methods in food and feed are necessary. In this paper, we establish a highly sensitive and accurate method for detecting T-2 toxin using AlphaLISA. The system consists of acceptor beads labeled with T-2-bovine serum albumin (BSA), streptavidin-labeled donor beads and biotinylated T-2 antibodies. T-2 in the sample matrix competes with T-2-BSA for antibodies. Adding biotinylated antibodies to the test well followed by T-2 and T-2-BSA acceptor beads yielded a detection range of 0.03-500 ng/mL. The half-maximal inhibitory concentration was 2.28 ng/mL and the coefficient of variation was <10%. In addition, this method had no cross-reaction with other related mycotoxins. This optimized method for extracting T-2 from food and feed samples achieved a recovery rate of approximately 90% in T-2 concentrations as low as 1 ng/mL, better than the performance of a commercial ELISA kit. This competitive AlphaLISA method offers high sensitivity, good specificity, good repeatability and simple operation for detecting T-2 toxin in food and feed.
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Affiliation(s)
- Liwen Zhang
- Anhui Medical University, Hefei, Anhui 230032, China.,State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Qingyu Lv
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Yuling Zheng
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Xuan Chen
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Decong Kong
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Wenhua Huang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Peng Liu
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Hua Jiang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Yongqiang Jiang
- Anhui Medical University, Hefei, Anhui 230032, China.,State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
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6
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Huang Z, Li Z, Jiang M, Liu R, Lv Y. Homogeneous Multiplex Immunoassay for One-Step Pancreatic Cancer Biomarker Evaluation. Anal Chem 2020; 92:16105-16112. [DOI: 10.1021/acs.analchem.0c03780] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zili Huang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Ziyan Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Min Jiang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Rui Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Yi Lv
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China
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7
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Hu Q, Gan S, Bao Y, Zhang Y, Han D, Niu L. Electrochemically Controlled ATRP for Cleavage-Based Electrochemical Detection of the Prostate-Specific Antigen at Femtomolar Level Concentrations. Anal Chem 2020; 92:15982-15988. [PMID: 33225684 DOI: 10.1021/acs.analchem.0c03467] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
As a single-chain glycoprotein with endopeptidase activity, the prostate-specific antigen (PSA) is valuable as an informative serum marker in diagnosing, staging, and prognosis of prostate cancer. In this report, an electrochemical biosensor based on the target-induced cleavage of a specific peptide substrate (PSA peptide) is designed for the highly selective detection of PSA at the femtomolar level, using electrochemically controlled atom transfer radical polymerization (eATRP) as a method for signal amplification. The PSA peptides, without free carboxyl sites, are attached to the gold surface via the N-terminal cysteine residue. The target-induced cleavage of PSA peptides results in the generation of carboxyl sites, to which the alkyl halide initiator α-bromophenylacetic acid (BPAA) is linked via the Zr(IV) linkers. Subsequently, the potentiostatic eATRP of ferrocenylmethyl methacrylate (FcMMA, as the monomer) leads to the surface-initiated grafting of high-density ferrocenyl polymers. As a result, a large amount of Fc redox tags can be recruited for signal amplification, through which the limit of detection (LOD) for PSA can be down to 3.2 fM. As the recognition element, the PSA peptide is easy to synthesize, chemically and thermally stable, and low-cost. Without the necessity of enzyme or nanoparticle labels, the eATRP-based amplification method is easy to operate and low-cost. Results also show that the cleavage-based electrochemical PSA biosensor is highly selective and applicable to PSA detection in complex biological samples. In view of these merits, the integration of the eATRP-based amplification method into cleavage-based recognition is believed to hold great promise for the electrochemical detection of PSA in clinical applications.
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Affiliation(s)
- Qiong Hu
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Shiyu Gan
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yu Bao
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Yuwei Zhang
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Dongxue Han
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
| | - Li Niu
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China
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8
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Liu J, Abdullah MAA, Yang L, Wang J. Fast Affinity Induced Reaction Sensor Based on a Fluorogenic Click Reaction for Quick Detection of Protein Biomarkers. Anal Chem 2019; 92:647-653. [PMID: 31790589 DOI: 10.1021/acs.analchem.9b04502] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Despite numerous biosensors currently available, the routine biomarker detection still largely relies on traditional ELISA and Western blot. Those standard techniques are labor intensive and time-consuming. Herein we introduce a fast affinity induced reaction sensor (FAIRS) that overcomes a few limitations of traditional and emerging biosensors. FAIRS is a general, one-step method and is naturally specific in detection. FAIRS probes are composed of a sandwich ELISA antibody pair that is conjugated with two fluorogenic click chemicals. This technology leverages significant differences of antibody affinity and chemical reaction rate, which are characterized to guide probe design. The stability, sensitivity, detection range, and response time are fully characterized. Application to IL-6 detection using blood serum and cell culture medium demonstrates that FAIRS can quantify IL-6 with high sensitivity in one step. With the unique features, FAIRS probes may find broad applications in medical sciences and clinical diagnostics, where quick detection of biomarkers is demanded.
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Affiliation(s)
- Jingxin Liu
- Multiplex Biotechnology Laboratory, Department of Biomedical Engineering , State University of New York at Stony Brook , Stony Brook , New York 11788 , United States
| | - Mohammed A A Abdullah
- Multiplex Biotechnology Laboratory, Department of Biomedical Engineering , State University of New York at Stony Brook , Stony Brook , New York 11788 , United States.,Department of Chemistry , State University of New York, University at Albany , Albany , New York 12222 , United States
| | - Liwei Yang
- Multiplex Biotechnology Laboratory, Department of Biomedical Engineering , State University of New York at Stony Brook , Stony Brook , New York 11788 , United States
| | - Jun Wang
- Multiplex Biotechnology Laboratory, Department of Biomedical Engineering , State University of New York at Stony Brook , Stony Brook , New York 11788 , United States
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9
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Xu J, Shi M, Chen W, Huang Y, Fang L, Yao L, Zhao S, Chen ZF, Liang H. A gold nanoparticle-based four-color proximity immunoassay for one-step, multiplexed detection of protein biomarkers using ribonuclease H signal amplification. Chem Commun (Camb) 2018; 54:2719-2722. [DOI: 10.1039/c7cc09404c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A gold nanoparticle-based four-color fluorescence proximity immunoassay was developed for multiplexed analysis of protein biomarkers using ribonuclease H signal amplification.
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Affiliation(s)
- Jiayao Xu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- College of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin
- China
| | - Ming Shi
- Department of Chemistry and Pharmacy
- Guilin Normal College
- Guilin
- China
| | - Wenting Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- College of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin
- China
| | - Yong Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- College of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin
- China
| | - Lina Fang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- College of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin
- China
| | - Lifang Yao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- College of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin
- China
| | - Shulin Zhao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- College of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin
- China
| | - Zhen-Feng Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- College of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin
- China
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources
- College of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin
- China
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10
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Yang X, Feng Y, Chong H, Wang D, Hu X, Pu J, Zhan CG, Liao F. High-throughput estimation of specific activities of enzyme/mutants in cell lysates through immunoturbidimetric assay of proteins. Anal Biochem 2017; 534:91-98. [DOI: 10.1016/j.ab.2017.05.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 05/14/2017] [Indexed: 01/02/2023]
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11
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Zhao L, Wang D, Shi G, Lin L. Dual-labeled chemiluminescence enzyme immunoassay for simultaneous measurement of total prostate specific antigen (TPSA) and free prostate specific antigen (FPSA). LUMINESCENCE 2017. [DOI: 10.1002/bio.3358] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lixia Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences; Beijing China
| | - Dan Wang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences; Beijing China
- University of Chinese Academy of Sciences; Beijing People's Republic of China
| | - Gen Shi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences; Beijing China
| | - Ling Lin
- The National Center for Nanoscience and Technology (NCNST) of China; Beijing People's Republic of China
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12
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Li S, Shi M, Zhao J, Zhang L, Huang Y, Zhao S. A highly sensitive capillary electrophoresis immunoassay strategy based on dual-labeled gold nanoparticles enhancing chemiluminescence for the detection of prostate-specific antigen. Electrophoresis 2017; 38:1780-1787. [DOI: 10.1002/elps.201600396] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 03/08/2017] [Accepted: 03/23/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Shuting Li
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education; Guangxi Normal University; Guilin P. R. China
| | - Min Shi
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education; Guangxi Normal University; Guilin P. R. China
| | - Jingjin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education; Guangxi Normal University; Guilin P. R. China
| | - Liangliang Zhang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education; Guangxi Normal University; Guilin P. R. China
| | - Yong Huang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education; Guangxi Normal University; Guilin P. R. China
| | - Shulin Zhao
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources; Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection of Ministry Education; Guangxi Normal University; Guilin P. R. China
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13
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14
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Cohen N, Zahavy E, Zichel R, Fisher M. An internal standard approach for homogeneous TR-FRET immunoassays facilitates the detection of bacteria, biomarkers, and toxins in complex matrices. Anal Bioanal Chem 2016; 408:5179-88. [PMID: 27236318 DOI: 10.1007/s00216-016-9602-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/13/2016] [Accepted: 04/25/2016] [Indexed: 10/21/2022]
Abstract
The recent development of a homogeneous time-resolved Förster resonance energy transfer (TR-FRET) immunoassay enables one-step, rapid (minutes), and direct detection compared to the multistep, time-consuming (hours), heterogeneous ELISA-type immunoassays. The use of the time-resolved effect of a donor lanthanide complex with a delay time of microseconds and large Stokes shift enables the separation of positive signals from the background autofluorescence of the sample. However, this study shows that the sample matrices directly interfere with donor fluorescence and that interference cannot be eliminated by time-resolved settings alone. Moreover, the reduction in donor emission did not appear to be equivalent to the reduction in acceptor emission, resulting in incorrect FRET signal measurements. To overcome this limitation, an internal standard approach was developed using an isotype control antibody. This new approach was used to develop TR-FRET assays for rapid detection (15-30 min) of Bacillus anthracis spores and botulinum toxin (type E) in beverages, which are major concerns in bioterrorism involving deliberate food contamination. Additionally, we demonstrate the detection of B. anthracis-secreted protective antigen (PA) and the Yersinia pestis-secreted markers F1 and LcrV in blood cultures, which are early markers of bacteremia in infected hosts following a possible bioterror attack. The use of an internal standard enables the calculation of correct ΔF values without the need for an external standard. Thus, the use of the internal standard approach in homogeneous immunoassays facilitates the examination of any sample regardless of its origin, and therefore expands the applicability of TR-FRET assays for complex matrices.
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Affiliation(s)
- Noam Cohen
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona, 74100, Israel
| | - Eran Zahavy
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness-Ziona, 74100, Israel
| | - Ran Zichel
- Department of Biotechnology, Israel Institute for Biological Research, Ness-Ziona, 74100, Israel
| | - Morly Fisher
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness-Ziona, 74100, Israel.
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15
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Sy M, Nonat A, Hildebrandt N, Charbonnière LJ. Lanthanide-based luminescence biolabelling. Chem Commun (Camb) 2016; 52:5080-95. [DOI: 10.1039/c6cc00922k] [Citation(s) in RCA: 155] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Multiplexing, time-resolution, FRET…lanthanide-based biolabels reveal exceptional spectroscopic properties for bioanalytical applications.
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Affiliation(s)
- Mohamadou Sy
- Laboratoire d'Ingénierie Moléculaire Appliquée à l'Analyse
- IPHC
- UMR 7178 CNRS
- Université de Strasbourg
- ECPM
| | - Aline Nonat
- Laboratoire d'Ingénierie Moléculaire Appliquée à l'Analyse
- IPHC
- UMR 7178 CNRS
- Université de Strasbourg
- ECPM
| | - Niko Hildebrandt
- NanoBioPhotonics, Institut d'Electronique Fondamentale
- Université Paris-Saclay
- Université Paris-Sud
- CNRS
- Orsay
| | - Loïc J. Charbonnière
- Laboratoire d'Ingénierie Moléculaire Appliquée à l'Analyse
- IPHC
- UMR 7178 CNRS
- Université de Strasbourg
- ECPM
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16
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Pu J, Hu X, Liao J, Li YW, Qin JL, Xie YL, Zhan CG, Yang XL, Liao F. Achievement of linear response for competitive bioaffinity assays of ligands: criteria of optimized interaction systems. RSC Adv 2016. [DOI: 10.1039/c6ra06426d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
For a linear response, an optimized competitive bioaffinity assay of a ligand requiresCRT> 3 ×CPT,CPT> 50 ×KdR, andKdR> 260 ×KdX(CRTandCPTare concentrations of the probe and protein whileKdXandKdRareKdfor the ligand and probe, respectively).
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Affiliation(s)
- J. Pu
- Key Laboratory of Clinical Laboratory Diagnosis of the Education Ministry
- College of Laboratory Medicine
- Chongqing Medical University
- Chongqing 400016
- China
| | - X. L. Hu
- Key Laboratory of Clinical Laboratory Diagnosis of the Education Ministry
- College of Laboratory Medicine
- Chongqing Medical University
- Chongqing 400016
- China
| | - J. Liao
- Central Laboratory
- Yongchuan Hospital
- Chongqing Medical University
- Chongqing 402160
- China
| | - Y. W. Li
- Key Laboratory of Clinical Laboratory Diagnosis of the Education Ministry
- College of Laboratory Medicine
- Chongqing Medical University
- Chongqing 400016
- China
| | - J. L. Qin
- Key Laboratory of Clinical Laboratory Diagnosis of the Education Ministry
- College of Laboratory Medicine
- Chongqing Medical University
- Chongqing 400016
- China
| | - Y. L. Xie
- Key Laboratory of Clinical Laboratory Diagnosis of the Education Ministry
- College of Laboratory Medicine
- Chongqing Medical University
- Chongqing 400016
- China
| | - C.-G. Zhan
- Molecular Modeling and Biopharmaceutical Center
- Department of Pharmaceutical Sciences
- College of Pharmacy
- University of Kentucky
- Lexington
| | - X. L. Yang
- Key Laboratory of Clinical Laboratory Diagnosis of the Education Ministry
- College of Laboratory Medicine
- Chongqing Medical University
- Chongqing 400016
- China
| | - F. Liao
- Key Laboratory of Clinical Laboratory Diagnosis of the Education Ministry
- College of Laboratory Medicine
- Chongqing Medical University
- Chongqing 400016
- China
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17
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Ranzoni A, den Hamer A, Karoli T, Buechler J, Cooper MA. Improved Immunoassay Sensitivity in Serum as a Result of Polymer-Entrapped Quantum Dots: ‘Papaya Particles’. Anal Chem 2015; 87:6150-7. [DOI: 10.1021/acs.analchem.5b00762] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Andrea Ranzoni
- Institute
for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, 4072, Australia
| | - Anniek den Hamer
- Institute
for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, 4072, Australia
| | - Tomislav Karoli
- Institute
for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, 4072, Australia
| | - Joseph Buechler
- ALERE Inc., 9975 Summers Ridge Road, San Diego, California 92121, United States
| | - Matthew. A. Cooper
- Institute
for Molecular Bioscience, The University of Queensland, St. Lucia, Brisbane, 4072, Australia
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18
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Lindén S, Singh MK, Wegner KD, Regairaz M, Dautry F, Treussart F, Hildebrandt N. Terbium-based time-gated Förster resonance energy transfer imaging for evaluating protein–protein interactions on cell membranes. Dalton Trans 2015; 44:4994-5003. [DOI: 10.1039/c4dt02884h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Time-gated Tb-to-dye FRET imaging for the investigation of E- and N-cadherin expression on different model cell lines.
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Affiliation(s)
- Stina Lindén
- NanoBioPhotonics
- Institut d'Electronique Fondamentale
- Université Paris-Sud
- Orsay
- France
| | - Manish Kumar Singh
- Laboratoire Aimé Cotton
- UMR 9188 CNRS
- Université Paris-Sud and ENS Cachan
- 91405 Orsay
- France
| | - K. David Wegner
- NanoBioPhotonics
- Institut d'Electronique Fondamentale
- Université Paris-Sud
- Orsay
- France
| | - Marie Regairaz
- Laboratoire de Biologie et de Pharmacologie Appliquée
- UMR 8113 CNRS and ENS Cachan
- 94235 Cachan
- France
| | - François Dautry
- Laboratoire de Biologie et de Pharmacologie Appliquée
- UMR 8113 CNRS and ENS Cachan
- 94235 Cachan
- France
| | - François Treussart
- Laboratoire Aimé Cotton
- UMR 9188 CNRS
- Université Paris-Sud and ENS Cachan
- 91405 Orsay
- France
| | - Niko Hildebrandt
- NanoBioPhotonics
- Institut d'Electronique Fondamentale
- Université Paris-Sud
- Orsay
- France
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19
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Wu BY, Yan XP. Bioconjugated persistent luminescence nanoparticles for Föster resonance energy transfer immunoassay of prostate specific antigen in serum and cell extracts without in situ excitation. Chem Commun (Camb) 2015; 51:3903-6. [DOI: 10.1039/c5cc00286a] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel Föster resonance energy transfer (FRET) immunoassay based on persistent luminescence nanoparticles (PLNP) for PSA detection in serum and cell extracts in the absence of in situ excitation.
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Affiliation(s)
- Bo-Yue Wu
- College of Chemistry
- Research Center for Analytical Sciences
- State Key Laboratory of Medicinal Chemical Biology (Nankai University)
- Tianjin Key Laboratory of Molecular Recognition and Biosensing
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Xiu-Ping Yan
- College of Chemistry
- Research Center for Analytical Sciences
- State Key Laboratory of Medicinal Chemical Biology (Nankai University)
- Tianjin Key Laboratory of Molecular Recognition and Biosensing
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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20
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Päkkilä H, Peltomaa R, Lamminmäki U, Soukka T. Precise construction of oligonucleotide-Fab fragment conjugate for homogeneous immunoassay using HaloTag technology. Anal Biochem 2014; 472:37-44. [PMID: 25481738 DOI: 10.1016/j.ab.2014.11.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 11/19/2014] [Accepted: 11/24/2014] [Indexed: 10/24/2022]
Abstract
The use of oligonucleotide-protein conjugates enables the development of novel types of bioanalytical assays. However, convenient methods for producing covalent and stoichiometric oligonucleotide-protein conjugates are still rare. Here we demonstrate, for the first time, covalent conjugation of DNA oligonucleotide to Fab fragments with a 1:1 ratio using HaloTag self-labeling technology. The oligonucleotide coupling was carried out while the Fab was attached to protein G matrix, thereby enabling straightforward production of covalent conjugates. Furthermore, it allowed convenient purification of the product because the unreacted components were easily removed before the elution of the high-purity conjugate. The prepared conjugate was employed in a homogeneous immunoassay where prostate-specific antigen was used as a model analyte. Switchable lanthanide luminescence was used for detection, and the obtained limit of detection was 0.27 ng/ml. In the future, the developed method for covalent conjugation and successive purification in protein G column could also be applied for introducing other kinds of modifications to Fab fragments in a simple and site-specific manner.
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Affiliation(s)
- Henna Päkkilä
- Department of Biochemistry/Biotechnology, University of Turku, FI-20014 Turun yliopisto, Finland.
| | - Riikka Peltomaa
- Department of Biochemistry/Biotechnology, University of Turku, FI-20014 Turun yliopisto, Finland
| | - Urpo Lamminmäki
- Department of Biochemistry/Biotechnology, University of Turku, FI-20014 Turun yliopisto, Finland
| | - Tero Soukka
- Department of Biochemistry/Biotechnology, University of Turku, FI-20014 Turun yliopisto, Finland
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21
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Herbáth M, Papp K, Balogh A, Matkó J, Prechl J. Exploiting fluorescence for multiplex immunoassays on protein microarrays. Methods Appl Fluoresc 2014; 2:032001. [PMID: 29148470 DOI: 10.1088/2050-6120/2/3/032001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Protein microarray technology is becoming the method of choice for identifying protein interaction partners, detecting specific proteins, carbohydrates and lipids, or for characterizing protein interactions and serum antibodies in a massively parallel manner. Availability of the well-established instrumentation of DNA arrays and development of new fluorescent detection instruments promoted the spread of this technique. Fluorescent detection has the advantage of high sensitivity, specificity, simplicity and wide dynamic range required by most measurements. Fluorescence through specifically designed probes and an increasing variety of detection modes offers an excellent tool for such microarray platforms. Measuring for example the level of antibodies, their isotypes and/or antigen specificity simultaneously can offer more complex and comprehensive information about the investigated biological phenomenon, especially if we take into consideration that hundreds of samples can be measured in a single assay. Not only body fluids, but also cell lysates, extracted cellular components, and intact living cells can be analyzed on protein arrays for monitoring functional responses to printed samples on the surface. As a rapidly evolving area, protein microarray technology offers a great bulk of information and new depth of knowledge. These are the features that endow protein arrays with wide applicability and robust sample analyzing capability. On the whole, protein arrays are emerging new tools not just in proteomics, but glycomics, lipidomics, and are also important for immunological research. In this review we attempt to summarize the technical aspects of planar fluorescent microarray technology along with the description of its main immunological applications.
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Affiliation(s)
- Melinda Herbáth
- Department of Immunology, Eötvös Loránd University, Budapest, 1117 Hungary
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22
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Hildebrandt N, Wegner KD, Algar WR. Luminescent terbium complexes: Superior Förster resonance energy transfer donors for flexible and sensitive multiplexed biosensing. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.01.020] [Citation(s) in RCA: 146] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Lang Q, Wang F, Yin L, Liu M, Petrenko VA, Liu A. Specific Probe Selection from Landscape Phage Display Library and Its Application in Enzyme-Linked Immunosorbent Assay of Free Prostate-Specific Antigen. Anal Chem 2014; 86:2767-74. [DOI: 10.1021/ac404189k] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Qiaolin Lang
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, and Key Laboratory of Bioenergy, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, China
| | - Fei Wang
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, and Key Laboratory of Bioenergy, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Long Yin
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, and Key Laboratory of Bioenergy, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
| | - Mingjun Liu
- Department
of Clinical Laboratory, The Affiliated Hospital of Medical College, Qingdao University, 16 Jiangsu Road, Qingdao 266003, China
| | - Valery A. Petrenko
- Department
of Pathobiology, Auburn University, 269 Greene Hall, Auburn, Alabama 36849-5519, United States
| | - Aihua Liu
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, and Key Laboratory of Bioenergy, Chinese Academy of Sciences, 189 Songling Road, Qingdao 266101, China
- University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
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24
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A novel homogeneous immunoassay for anthrax detection based on the AlphaLISA method: detection of B. anthracis spores and protective antigen (PA) in complex samples. Anal Bioanal Chem 2013; 405:3965-72. [DOI: 10.1007/s00216-013-6752-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Revised: 12/17/2012] [Accepted: 01/16/2013] [Indexed: 02/07/2023]
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25
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Suaifan GARY, Esseghaier C, Ng A, Zourob M. Ultra-rapid colorimetric assay for protease detection using magnetic nanoparticle-based biosensors. Analyst 2013; 138:3735-9. [DOI: 10.1039/c3an36881e] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Geißler D, Stufler S, Löhmannsröben HG, Hildebrandt N. Six-Color Time-Resolved Förster Resonance Energy Transfer for Ultrasensitive Multiplexed Biosensing. J Am Chem Soc 2012; 135:1102-9. [DOI: 10.1021/ja310317n] [Citation(s) in RCA: 157] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Daniel Geißler
- Physical Chemistry, University of Potsdam, 14476 Potsdam-Golm, Germany
| | - Stefan Stufler
- NanoPolyPhotonics, Fraunhofer Institute for Applied Polymer Research,
14476 Potsdam-Golm, Germany
| | | | - Niko Hildebrandt
- Institut d’Electronique
Fondamentale, Université Paris-Sud, 91405 Orsay Cedex, France
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27
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Reagent-less electrogenerated chemiluminescence peptide-based biosensor for the determination of prostate-specific antigen. Talanta 2012; 100:162-7. [DOI: 10.1016/j.talanta.2012.08.037] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2012] [Revised: 08/23/2012] [Accepted: 08/27/2012] [Indexed: 11/24/2022]
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28
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Suaifan GARY, Esseghaier C, Ng A, Zourob M. Wash-less and highly sensitive assay for prostate specific antigen detection. Analyst 2012; 137:5614-9. [DOI: 10.1039/c2an36243k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Feng T, Feng D, Shi W, Li X, Ma H. A graphene oxide-peptide fluorescence sensor for proteolytically active prostate-specific antigen. MOLECULAR BIOSYSTEMS 2012; 8:1441-5. [DOI: 10.1039/c2mb05379a] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Qi H, Ling C, Ma Q, Gao Q, Zhang C. Sensitive electrochemical immunosensor array for the simultaneous detection of multiple tumor markers. Analyst 2012; 137:393-9. [DOI: 10.1039/c1an15698e] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Mie M, Bich Thuy NP, Kobatake E. Development of a homogeneous immunoassay system using protein A fusion fragmented Renillaluciferase. Analyst 2012; 137:1085-9. [DOI: 10.1039/c2an15976g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Han G, Xing Z, Dong Y, Zhang S, Zhang X. One-Step Homogeneous DNA Assay with Single-Nanoparticle Detection. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006838] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Han G, Xing Z, Dong Y, Zhang S, Zhang X. One-Step Homogeneous DNA Assay with Single-Nanoparticle Detection. Angew Chem Int Ed Engl 2011; 50:3462-5. [DOI: 10.1002/anie.201006838] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Indexed: 01/29/2023]
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34
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Schäferling M, Nagl S. Förster resonance energy transfer methods for quantification of protein-protein interactions on microarrays. Methods Mol Biol 2011; 723:303-20. [PMID: 21370073 DOI: 10.1007/978-1-61779-043-0_19] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Methods based on Förster (or fluorescence) resonance energy transfer (FRET) are widely used in various areas of bioanalysis and molecular biology, such as fluorescence microscopy, quantitative real-time polymerase chain reaction (PCR), immunoassays, or enzyme activity assays, just to name a few. In the last years, these techniques were successfully implemented to multiplex biomolecular screening on microarrays. In this review, some fundamental considerations and practical approaches are outlined and it is demonstrated how this very sensitive (and distance-dependent) method can be utilized for microarray-based high-throughput screening (HTS) with a focus on protein microarrays. The advantages and also the demands of this dual-label technique in miniaturized multiplexed formats are discussed with respect to its potential readout modes, such as intensity, dual wavelength, and time-resolved FRET detection.
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Affiliation(s)
- Michael Schäferling
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg, Germany.
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35
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Ruston L, Robertson G, Pikramenou Z. Luminescence Screening Assays for the Identification of Sensitizers for Lanthanides Based on the Controlled Formation of Ternary Lanthanide Complexes with DTPA-Bisamide Ligands. Chem Asian J 2010; 5:571-80. [DOI: 10.1002/asia.200900367] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Xie C, Xu F, Huang X, Dong C, Ren J. Single gold nanoparticles counter: an ultrasensitive detection platform for one-step homogeneous immunoassays and DNA hybridization assays. J Am Chem Soc 2009; 131:12763-70. [PMID: 19678640 DOI: 10.1021/ja903873n] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this paper, we present for the first time a single gold nanoparticle counter (SGNPC) in solution based on the photon bursting in a highly focused laser beam (less than 1 fL) due to the plasmon resonance scattering and Brownian motion of gold nanoparticles (GNPs). The photon burst intensity of single 36 nm GNPs is several tens to hundreds times stronger than that of quantum dots (QDs) and organic dyes. The relationship between the photon burst counts and GNPs concentration shows an excellent linearity. The linear range is over 4 orders of magnitude, and the detection limit of GNPs (36 nm) is 17 fM. On the basis of this single nanoparticle technique, we developed an ultrasensitive and highly selective detection platform for homogeneous immunoassay and DNA hybridization assays using GNPs as probes, which were 2-5 orders of magnitude more sensitive than current homogeneous methods. We used this technology to construct homogeneous sandwich immunoassays for cancer biomarkers, such as carcinoembryonic antigen (CEA) and alpha fetal protein (AFP), and aptamer recognition for thrombin. The detection limits are 130 fM for CEA, 714 fM for AFP and 2.72 pM for thrombin. Our method was successfully applied for direct determination of CEA, AFP and thrombin levels in sera from healthy subjects and cancer patients. In homogeneous DNA hybridization detection, we chose methylenetetrahydrofolate reductase (MTHFR) gene as a target. This assay successfully distinguished DNA sequences with single base mismatches, and the detection limits for the target were at 1 fM level.
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Affiliation(s)
- Chao Xie
- College of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240, PR China
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37
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Liao F, Xie Y, Yang X, Deng P, Chen Y, Xie G, Zhu S, Liu B, Yuan H, Liao J, Zhao Y, Yu M. Homogeneous noncompetitive assay of protein via Förster-resonance-energy-transfer with tryptophan residue(s) as intrinsic donor(s) and fluorescent ligand as acceptor. Biosens Bioelectron 2009; 25:112-7. [PMID: 19586766 DOI: 10.1016/j.bios.2009.06.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2009] [Revised: 05/30/2009] [Accepted: 06/08/2009] [Indexed: 11/19/2022]
Affiliation(s)
- Fei Liao
- Chongqing Key Laboratory of Biochemical & Molecular Pharmacology, Chongqing Medical University, Chongqing 400016, China.
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