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Qiao Y, Cai QY. Gold Nanoparticles-Amplified Indirect Competitive Enzyme-Linked Immunosorbent Assay of BDE-121 Using a Monoclonal Antibody. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2021; 21:5036-5043. [PMID: 33875088 DOI: 10.1166/jnn.2021.19334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, we developed a monoclonal antibody against 2,3',4,5',6-pentabromodiphenylether (BDE-121) using a synthesized hapten, and established an indirect competitive enzyme-linked immunosorbent assay (IC-ELISA), using gold nanoparticles, to amplify the signal. The monoclonal antibody showed high specificity, with a half inhibitory concentration (IC50) value of 2.78 ng/mL, towards BDE-121. The developed IC-ELISA exhibited high sensitivity and stability as well as good recovery. The intra-assay deviation is below 6.8% and the inter-assay deviations range from 6.5% to 8.7%. The assay of the actual samples was found to be consistent with those of gas chromatography/mass spectrometry (GC/MS).
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Affiliation(s)
- Yan Qiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Qing-Yun Cai
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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Śmiełowska M, Zabiegała B. Current trends in analytical strategies for the determination of polybrominated diphenyl ethers (PBDEs) in samples with different matrix compositions – Part 2: New approaches to PBDEs determination. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115889] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Use of carbon quantum dots and fluorescein isothiocyanate in developing an improved competitive fluoroimmunoassay for detecting polybrominated diphenyl ether. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01639-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Ma Z, Zhuang H. An ultrasensitive biological probe enhanced RT-IPCR assay for detecting benzo[a]pyrene in environmental samples based on the specific polyclonal antibody. Acta Biochim Biophys Sin (Shanghai) 2018; 50:381-390. [PMID: 29554193 DOI: 10.1093/abbs/gmy020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Indexed: 01/20/2023] Open
Abstract
Benzo[a]pyrene (BaP), a type of polycyclic aromatic hydrocarbon, is widely distributed in the environment. In this study, BaP immunogen and coating antigen were respectively prepared by different methods, and the specific antibody targeting the BaP analyte was obtained. Moreover, gold nanoparticles modified with the specific polyclonal antibody and thiol-capped DNA were prepared as biological probes. Based on the work above, an ultrasensitive biological probe enhanced real-time immuno-polymerase chain reaction (BP-rt-iPCR) assay was developed to detect BaP in several environmental samples. Under optimal conditions, the proposed method was used to detect BaP with a linearity ranging from 5 pg/l to 50 ng/l. The limit of detection was 1.63 pg/l. The recovery rates of the spiked samples ranged from 92.12% to 109.76% and the coefficients of variation were 7.53%-11.06%. This immunoassay was successfully used to detect BaP in environmental samples, and the BaP detection results were consistent with those obtained using high performance liquid chromatography, indicating that the BP-rt-iPCR method is accurate and reliable, and has great potential to detect trace amounts of BaP.
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Affiliation(s)
- Zhen Ma
- Institute for Environmental Monitoring and Evaluation, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Huisheng Zhuang
- Institute for Environmental Monitoring and Evaluation, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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Zhang F, Liu B, Sheng W, Zhang Y, Liu Q, Li S, Wang S. Fluoroimmunoassays for the detection of zearalenone in maize using CdTe/CdS/ZnS quantum dots. Food Chem 2018; 255:421-428. [PMID: 29571496 DOI: 10.1016/j.foodchem.2018.02.060] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 10/20/2017] [Accepted: 02/11/2018] [Indexed: 11/19/2022]
Abstract
CdTe/CdS/ZnS quantum dots (QDs) were synthesized in aqueous phase and conjugated with a new anti-zearalenone (ZEN) monoclonal antibody. Using this novel fluorescent probe, a fluoroimmunoassay (FLISA) and a rapid immunochromatographic strip (ICTS) were developed for the detection of ZEN in maize. Our proposed FLISA allowed for ZEN determination in the range of 0.038-0.977 ng/mL with an IC50 of 0.162 ng/mL and a limit of detection (LOD) of 0.012 ng/mL occurring in maize. The rapid ICTS had a visual LOD of 1.0 ng/mL in buffer solution and 1.5 ng/mL in maize extract. These two QDs-based immunoassays were all successfully verified by commercial ELISA kits. The results confirmed that: firstly, the FLISA can be used as a robust method for the sensitive detection of ZEN; and secondly, the ICTS is ideally suited for rapidly screening large numbers of samples.
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Affiliation(s)
- Fuyuan Zhang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China; ARC Centre of Excellence in Nanoscale Biophotonics (CNBP), Macquarie University, North Ryde 2109, Australia
| | - Bing Liu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Wei Sheng
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yan Zhang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Qi Liu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Shijie Li
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China
| | - Shuo Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology, Tianjin 300457, China; Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100048, China.
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Chen J, Lu N, Shen X, Tang Q, Zhang C, Xu J, Sun Y, Huang XA, Xu Z, Lei H. Investigation of an Immunoassay with Broad Specificity to Quinolone Drugs by Genetic Algorithm with Linear Assignment of Hypermolecular Alignment of Data Sets and Advanced Quantitative Structure-Activity Relationship Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2772-2779. [PMID: 26982746 DOI: 10.1021/acs.jafc.6b00039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A polyclonal antibody against the quinolone drug pazufloxacin (PAZ) but with surprisingly broad specificity was raised to simultaneously detect 24 quinolones (QNs). The developed competitive indirect enzyme-linked immunosorbent assay (ciELISA) exhibited limits of detection (LODs) for the 24 QNs ranging from 0.45 to 15.16 ng/mL, below the maximum residue levels (MRLs). To better understand the obtained broad specificity, a genetic algorithm with linear assignment of hypermolecular alignment of data sets (GALAHAD) was used to generate the desired pharmacophore model and superimpose the QNs, and then advanced comparative molecular field analysis (CoMFA) and advanced comparative molecular similarity indices analysis (CoMSIA) models were employed to study the three-dimensional quantitative structure-activity relationship (3D QSAR) between QNs and the antibody. It was found that the QNs could interact with the antibody with different binding poses, and cross-reactivity was mainly positively correlated with the bulky substructure containing electronegative atom at the 7-position, while it was negatively associated with the large bulky substructure at the 1-position of QNs.
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Affiliation(s)
- Jiahong Chen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, South China Agricultural University , Guangzhou 510642, China
| | - Ning Lu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, South China Agricultural University , Guangzhou 510642, China
| | - Xing Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, South China Agricultural University , Guangzhou 510642, China
| | - Qiushi Tang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, South China Agricultural University , Guangzhou 510642, China
| | - Chijian Zhang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, South China Agricultural University , Guangzhou 510642, China
| | - Jun Xu
- School of Pharmaceutical Sciences and Institute of Human Virology, Sun Yat-sen University , 132 East Circle at University City, Guangzhou 510006, China
| | - Yuanming Sun
- Guangdong Provincial Key Laboratory of Food Quality and Safety, Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, South China Agricultural University , Guangzhou 510642, China
| | - Xin-An Huang
- Tropical Medicine Institute and South China Chinese Medicine Collaborative Innovation Center, Guangzhou University of Chinese Medicine , Guangzhou 510405, China
| | - Zhenlin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, South China Agricultural University , Guangzhou 510642, China
| | - Hongtao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety, Guangdong Provincial Engineering & Technique Research Centre of Food Safety Detection and Risk Assessment, South China Agricultural University , Guangzhou 510642, China
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Li W, Sheng P, Cai J, Feng H, Cai Q. Highly sensitive and selective photoelectrochemical biosensor platform for polybrominated diphenyl ether detection using the quantum dots sensitized three-dimensional, macroporous ZnO nanosheet photoelectrode. Biosens Bioelectron 2014; 61:209-14. [DOI: 10.1016/j.bios.2014.04.058] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 04/05/2014] [Accepted: 04/23/2014] [Indexed: 11/30/2022]
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