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Hu J, Su X, Yuan L, Zheng K, Zou X, Sun Z, Xu X, Zhang W. Competitive immunoassay using enzyme-regulated Fe 3O 4@COF/Fe 3+ fluorescence probe for natural chloramphenicol detection. Anal Chim Acta 2023; 1277:341680. [PMID: 37604605 DOI: 10.1016/j.aca.2023.341680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/23/2023] [Accepted: 07/30/2023] [Indexed: 08/23/2023]
Abstract
Accurate and sensitive detection of chloramphenicol (CAP) in natural samples is essential for ensuring human health. Herein, an enzyme-regulated fluorescence sensor using Fe3O4@COF/Fe3+ probe, is developed for CAP determination. Fe3O4@COF, synthesized via hydrothermal method, exhibits dual functions as a magnetic carrier and signal probe. Bovine serum albumin conjugated-chloramphenicol, adsorbed on the surface of Fe3O4@COF, competes with CAP for antibody binding. The antibody interacts with alkaline phosphatase via the biotin-streptavidin system. Meanwhile, ascorbic acid, produced from the enzyme-catalyzed reaction dominated by alkaline phosphatase, effectively restores the fluorescence of Fe3O4@COF that is quenched by Fe3+. After experimental verification and gradual optimization, a logarithmic linear relationship between CAP concentration and fluorescence intensity is established in the range of 2 × 10-4∼10 μg mL-1, with a good limit of detection (9.2 × 10-5 μg mL-1). Proposed method exhibits excellent stability (15 days) and reusability (8 cycles), providing a sensitive and reliable method for accurate CAP detection. The readouts show good agreement with HPLC and recoveries during laboratory and natural CAP analysis.
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Affiliation(s)
- Jutao Hu
- Department of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xiaoyu Su
- Department of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Lei Yuan
- Department of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Kaiyi Zheng
- Department of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xiaobo Zou
- Department of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Zongbao Sun
- Department of Food & Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xuechao Xu
- College of Food Science and Engineering, Yangzhou University, Yangzhou, 225127, China
| | - Wen Zhang
- College of Photoelectric Engineering, Chongqing University, Chongqing, 400044, China.
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Lu L, Hu X, Zeng R, Lin Q, Huang X, Wei Q, Tang D, Knopp D. Ag/MoO3–Pd-mediated gasochromic reaction: An efficient dual-mode photoelectrochemical and photothermal immunoassay. Biosens Bioelectron 2023; 230:115267. [PMID: 36996546 DOI: 10.1016/j.bios.2023.115267] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 03/29/2023]
Abstract
Herein, we presented a dual-readout gasochromic immunosensing platform for accurate and sensitive detection of carcinoembryonic antigen (CEA) based on Ag-doped/Pd nanoparticles loaded MoO3 nanorods (Ag/MoO3-Pd). Initially, the presence of analyte CEA would prompt the formation of sandwich-type immunoreaction, accompanied by the introduction of Pt NPs labeled on detection antibody. Upon the addition of NH3BH3, the product hydrogen (H2) will interact with Ag/MoO3-Pd as a bridge between the sensing interface and the biological assembly platform. Both photocurrent and temperature signals can serve as readouts due to the significantly increased PEC performance and enhanced photothermal conversion capability of H-Ag/MoO3-Pd (the product of Ag/MoO3-Pd react with H2) compared to Ag/MoO3-Pd. In addition, the DFT results show that the band gap of Ag/MoO3-Pd becomes narrower after the reaction with H2, thus improving the utilization of light, which theoretically explains the internal mechanism of gas sensing reaction. Under optimal conditions, the designed immunosensing platform showed good sensitivity for CEA detection with the limit of detection (LOD) of 26 pg mL-1 (photoelectrochemical mode) and 98 pg mL-1 (photothermal mode). This work not only presents the possible reaction mechanism of Ag/MoO3-Pd and H2, but also creatively applicate it in photothermal biosensors that give a new path for devising dual-readout immunosensor.
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Guo Y, Sang P, Lu G, Yang X, Xie Y, Hu Z, Qian H, Yao W. RNA-cleaving deoxyribozyme-linked immunosorbent assay for the ultrasensitive detection of chloramphenicol in milk. Food Chem 2023; 408:135174. [PMID: 36535184 DOI: 10.1016/j.foodchem.2022.135174] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/16/2022]
Abstract
In this presented work, an artificial deoxyribozyme was employed as the substitute for horseradish peroxidase (or alkaline phosphatase) in ELISA for generating amplified signals. The feasibility of the proposed deoxyribozyme-based ELISA (DLISA) was demonstrated in the detection of a forbidden veterinary drug, chloramphenicol. And its efficiency was praised since that ultrahigh sensitivity was accomplished with a detection limit of 0.1 ng/L. The wide linear range from 0.000001 μg/mL to 1.0 μg/mL, as well as good recoveries from 86 % to 104 % in whole milk samples showed its excellent practical performances. Besides, the DLISA was worth popularizing due to the easy connection of antibody and DNAzyme through a facile functionalization process of gold nanoparticles. These advantages showed the possibility of DLISA for developing commercial kits, and the utilization of flexible DNA fluorescent probes in DLISA would inspire more work on innovations.
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Affiliation(s)
- Yahui Guo
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Panting Sang
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Gang Lu
- Food Safety Research Center, Safety & Quality Management Department, Inner Mongolia Mengniu Dairy (Group) CO, LTD., Hohhot 011500, China
| | - Xue Yang
- Wuxi Children's Hospital Affiliated to Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China
| | - Yunfei Xie
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zhigang Hu
- Wuxi Children's Hospital Affiliated to Wuxi School of Medicine, Jiangnan University, Wuxi 214122, China.
| | - He Qian
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Weirong Yao
- State Key Laboratory of Food Science and Technology, National Centre for Technology Innovation on Fast Biological Detection of Grain Quality and Safety, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
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Geng L, Liu M, Huang J, Li F, Zhang Y, Guo Y, Sun X. Novel Dual-Signal SiO 2-COOH@MIPs Electrochemical Sensor for Highly Sensitive Detection of Chloramphenicol in Milk. SENSORS (BASEL, SWITZERLAND) 2023; 23:1346. [PMID: 36772386 PMCID: PMC9920509 DOI: 10.3390/s23031346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/16/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
In view of the great threat of chloramphenicol (CAP) to human health and the fact that a few producers have illegally used CAP in the food production process to seek economic benefits in disregard of laws and regulations and consumer health, we urgently need a detection method with convenient operation, rapid response, and high sensitivity capabilities to detect CAP in food to ensure people's health. Herein, a molecularly imprinted polymer (MIP) electrochemical sensor based on a dual-signal strategy was designed for the highly sensitive analysis of CAP in milk. The NiFe Prussian blue analog (NiFe-PBA) and SnS2 nanoflowers were modified successively on the electrode surface to obtain dual signals from [Fe(CN)6]3-/4- at 0.2 V and NiFe-PBA at 0.5 V. SiO2-COOH@MIPs that could specifically recognize CAP were synthesized via thermal polymerization using carboxylated silica microspheres (SiO2-COOH) as carriers. When the CAP was adsorbed by SiO2-COOH@MIPs, the above two oxidation peak currents decreased at the same time, allowing the double-signal analysis. The SiO2-COOH@MIPs/SnS2/NiFe-PBA/GCE sensor used for determining CAP was successfully prepared. The sensor utilized the interactions of various nanomaterials to achieve high-sensitivity dual-signal detection, which had certain innovative significance. At the same time, the MIPs were synthesized using a surface molecular imprinting technology, which could omit the time of polymerization and elution and met the requirements for rapid detection. After optimizing the experimental conditions, the detection range of the sensor was 10-8 g/L-10-2 g/L and the limit of detection reached 3.3 × 10-9 g/L (S/N = 3). The sensor had satisfactory specificity, reproducibility, and stability, and was successfully applied to the detection of real milk samples.
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Affiliation(s)
- Lingjun Geng
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo 255049, China
| | - Mengyue Liu
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo 255049, China
| | - Jingcheng Huang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo 255049, China
| | - Falan Li
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo 255049, China
| | - Yanyan Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo 255049, China
| | - Yemin Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo 255049, China
| | - Xia Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo 255049, China
- Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo 255049, China
- Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo 255049, China
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Yin J, Ouyang H, Li W, Long Y. An Effective Electrochemical Platform for Chloramphenicol Detection Based on Carbon-Doped Boron Nitride Nanosheets. BIOSENSORS 2023; 13:116. [PMID: 36671951 PMCID: PMC9855874 DOI: 10.3390/bios13010116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/27/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Currently, accurate quantification of antibiotics is a prerequisite for health care and environmental governance. The present work demonstrated a novel and effective electrochemical strategy for chloramphenicol (CAP) detection using carbon-doped hexagonal boron nitride (C-BN) as the sensing medium. The C-BN nanosheets were synthesized by a molten-salt method and fully characterized using various techniques. The electrochemical performances of C-BN nanosheets were studied using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The results showed that the electrocatalytic activity of h-BN was significantly enhanced by carbon doping. Carbon doping can provide abundant active sites and improve electrical conductivity. Therefore, a C-BN-modified glassy carbon electrode (C-BN/GCE) was employed to determine CAP by differential pulse voltammetry (DPV). The sensor showed convincing analytical performance, such as a wide concentration range (0.1 µM-200 µM, 200 µM-700 µM) and low limit of detection (LOD, 0.035 µM). In addition, the proposed method had high selectivity and desired stability, and can be applied for CAP detection in actual samples. It is believed that defect-engineered h-BN nanomaterials possess a wide range of applications in electrochemical sensors.
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Affiliation(s)
- Jingli Yin
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, Soochow University, Suzhou 215123, China
| | - Huiying Ouyang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, Soochow University, Suzhou 215123, China
| | - Weifeng Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yumei Long
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, Soochow University, Suzhou 215123, China
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Geçgel C, Görmez Ö, Gözmen B, Turabik M, Kalderis D. A dual purpose aluminum-based metal organic framework for the removal of chloramphenicol from wastewater. CHEMOSPHERE 2022; 308:136411. [PMID: 36115473 DOI: 10.1016/j.chemosphere.2022.136411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/31/2022] [Accepted: 09/07/2022] [Indexed: 06/15/2023]
Abstract
The presence of antibiotics in the aquatic environment can cause significant environmental and human health problems even at trace concentrations. Conventional treatment systems alone are ineffective in removing these resistant antibiotics. To address this problem, oxidation and adsorption techniques were used to explore the removal of recalcitrant antibiotic chloramphenicol (CAP). An aluminum-based metal-organic framework (Al-MIL) with high surface area and extended porosity, was prepared and used both as adsorbent and catalyst for the oxidation of CAP. Characterization of the Al-MIL revealed a large surface area of 1137 m2 g-1, a homogeneous microporous structure, good crystallinity, and particle size in the range of 200-400 nm. Adsorption of CAP on Al-MIL achieved equilibrium after 1 h, reaching a maximum adsorption capacity of 96.1 mg g-1 at the optimum pH value of 5.3. The combination of adsorption and oxidation did not improve the % TOC reduction considerably, indicating an antagonistic rather than synergistic effect between the two processes. Oxidation alone in the presence of persulfate, achieved a % TOC reduction of 71% after 2 h, compared to 56% achieved by adsorption alone at the same duration. The optimum persulfate concentration was determined as 2.5 mM. The Al-MIL structure did not demonstrate any substantial deterioriation after six repeated runs, according to the reusability experiments.
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Affiliation(s)
- Cihan Geçgel
- Department of Nanotechnology & Advanced Materials, Mersin University, Mersin, Turkey; Advanced Technology Education Research and Application Center, Mersin University, 33343, Mersin, Turkey
| | - Özkan Görmez
- Department of Chemistry, Arts and Science Faculty, Mersin University, 33343, Mersin, Turkey
| | - Belgin Gözmen
- Department of Nanotechnology & Advanced Materials, Mersin University, Mersin, Turkey; Department of Chemistry, Arts and Science Faculty, Mersin University, 33343, Mersin, Turkey
| | - Meral Turabik
- Department of Nanotechnology & Advanced Materials, Mersin University, Mersin, Turkey; Chemical Program, Technical Science Vocational School, 33343, Mersin, Turkey
| | - Dimitrios Kalderis
- Department of Electronics Engineering, Hellenic Mediterranean University, 73100, Chania, Crete, Greece.
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Fabrication of polydopamine nanoparticles-based electrochemical sensor for geometry-sensitive detection of chloramphenicol. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.117127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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