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Liu W, Wang K, Liu P, Jiang W, Feng Y, Hu Y, Zheng M, Zhou Y, Xiao Y, Liu Y. Tb 3+ assisted dithioerythritol stabilized copper nanocluster with AIE behavior for ratiometric fluorescent determination of fluoroquinolones. Anal Chim Acta 2024; 1316:342842. [PMID: 38969406 DOI: 10.1016/j.aca.2024.342842] [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: 03/12/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 07/07/2024]
Abstract
BACKGROUND Fluoroquinolones (FQs) are widely used in livestock and poultry industry because of their satisfactory effects in preventing and treating bacterial infection. However, due to irrational use and poor biodegradability, FQs can easily remain in food animals and further enter the human body through the food chain. Therefore, accurate and sensitive detection of FQs residues in animal-origin food is significant. The traditional methods commonly used for FQs detection have some limitations. Ratiometric fluorescence detection technology has the advantages of fast, sensitive, self-correcting, and easy visualization. However, the reports on the use of ratiometric fluorescence probes for FQs detection are limited. RESULTS In this work, a novel probe was proposed for ratiometric fluorescent analysis of FQs. In this probe, the fluorescence of dithioerythritol stabilized copper nanoclusters (DTE-Cu NCs) was significantly enhanced due to the Tb3+ triggered aggregation-induced emission effect. FQs bound Tb3+ in Tb3+/DTE-Cu NCs through carboxyl and carbonyl groups, so that Tb3+ was effectively sensitized to emit green fluorescence. However, the red fluorescence of DTE-Cu NCs was not interfered. The fluorescence of the probe transformed from red to green with the increase of FQs concentration. Using norfloxacin (NOR), difloxacin (DIF), and enrofloxacin (ENR) as FQs simulants, this probe showed a sensitive linear response ranged from 0.025 to 22.5 μM, with the limits of detection of 9.6 nM, 9.3 nM, and 7.7 nM. The application potential for FQs detection was verified via a standard addition assay of egg samples with the recovery rate of 90.4 %-114.7 %. SIGNIFICANT The fluorescence probe based on Tb3+/DTE-Cu NCs is expected to realize the ratiometric fluorescence sensitive detection of FQs. The establishment of this simple, effective, and rapid detection platform opens up a new way for the detection of FQs residues in animal-origin foods, and also provides a new idea for the design of rapid detection platforms for other hazard factors.
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Affiliation(s)
- Wenya Liu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, Department of Food Science and Engineering, Anhui Agricultural University, Hefei, 230036, China
| | - Kai Wang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, Department of Food Science and Engineering, Anhui Agricultural University, Hefei, 230036, China
| | - Pan Liu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, Department of Food Science and Engineering, Anhui Agricultural University, Hefei, 230036, China
| | - Wanqi Jiang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, Department of Food Science and Engineering, Anhui Agricultural University, Hefei, 230036, China
| | - Yingying Feng
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, Department of Food Science and Engineering, Anhui Agricultural University, Hefei, 230036, China
| | - Yunyun Hu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, Department of Food Science and Engineering, Anhui Agricultural University, Hefei, 230036, China
| | - Mingming Zheng
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, Department of Food Science and Engineering, Anhui Agricultural University, Hefei, 230036, China
| | - Yibin Zhou
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, Department of Food Science and Engineering, Anhui Agricultural University, Hefei, 230036, China
| | - Yaqing Xiao
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, Department of Food Science and Engineering, Anhui Agricultural University, Hefei, 230036, China
| | - Yingnan Liu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, Department of Food Science and Engineering, Anhui Agricultural University, Hefei, 230036, China.
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Palayer M, Chaussenery-Lorentz O, Boubekeur L, Urbina T, Maury E, Maubert MA, Pilon A, Bourgogne E. Quantitation of 10 antibiotics in plasma: sulfosalicylic acid combined with 2D-LC-MS/MS is a robust assay for beta-lactam therapeutic drug monitoring. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1221:123685. [PMID: 37023569 DOI: 10.1016/j.jchromb.2023.123685] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 03/17/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023]
Abstract
Therapeutic drug monitoring (TDM) of antibiotics is particularly important in populations with high pharmacokinetic variabilities, such as critically ill patients, leading to unpredictable plasma concentrations and clinical outcomes. Here, we i) describe an original method for the simultaneous quantification of ten antibiotics (cefepime, ceftazidime, ampicillin, piperacillin/tazobactam, cefotaxime, amoxicillin, cloxacillin, oxacillin, linezolid) using 5-sulfosalicylic acid dihydrate (SSA) solution for protein precipitation together with 2D-LC-MS/MS, and ii) evaluate its impact in a one-year retrospective study. The method involved simple dilution with an aqueous mix of deuterated internal standards and plasma protein precipitation with SSA. Twenty microliters of the supernatant was injected into a C8 SPE online cartridge (30 × 2.1 mm) without any evaporation step and back-flushed onto a C18 UHPLC (100 × 2.1 mm) analytical column. Mass spectrometry detection (Xevo TQD) was performed in positive electrospray, in scheduled MRM mode. Overall analytical runtime was 7 min. Due to analytical constraints and the physicochemical properties of the antibiotics, protein precipitation using organic solvents could not be applied. As an alternative, SSA used with 2D-LC offered various advantages: i) lack of dilution resulting in better assay sensitivity, and ii) good chromatography of hydrophilic compounds. Ten microliters of 30% SSA in water eliminated>90% of plasma proteins, including the most abundant high molecular weight proteins at 55 and 72 kDa. The assay was successfully validated according to FDA and EMA guidelines for all the antibiotics, and the coefficients of variation of the quality control (QC) run during sample analysis over one year were below 10%, whatever the QC levels or the antibiotics. The use of 2D-LC combined with SSA precipitation allowed development of a robust, sensitive and rapid quantification assay. Feedback to clinicians was reduced to 24 h, thus allowing rapid dosage adjustment. During one year, 3,304 determinations were performed in our laboratory: 41% were not in the therapeutic range, 58% of which were sub-therapeutic, underlining the importance of early TDM of antibiotics to limit therapeutic failures and the emergence of bacterial resistance.
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Zhang Z, Lin H, Sui J, Han X, Wang L, Sun X, Cao L. The effect of chlorophyll on the enzyme-linked immunosorbent assay (ELISA) of procymidone in vegetables and the way to overcome the matrix interference. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:3393-3399. [PMID: 34825360 DOI: 10.1002/jsfa.11686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 11/23/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND There is now an increasing demand for the immunoassay of procymidone residue in foodstuffs. However, the matrix interference could significantly affect the analysis. Till now there is no detailed information on the source of the interference and the mechanism involved, which greatly limits the real application of these techniques. RESULTS Significant matrix effect was observed in the enzyme-linked immunosorbent assay (ELISA) of procymidone in negative vegetable samples (leek, broccoli and cucumber). By the investigation with both vegetable extracts and standard solutions, the chlorophyll was confirmed as an important source of the matrix effect. Therefore, a new strategy was proposed for the pretreatment based on the exploitation of 5-sulfosalicylic acid. It was demonstrated to effectively eliminate chlorophyll and exhibited little effect on procymidone and the competitive indirect ELISA (ci-ELISA) performance. The established technique was validated with different vegetables. With the spiking concentration of procymidone investigated, the recovery rate of ci-ELISA was 71.52-120.37%, and the relative standard deviation was 4.05-17.61%. CONCLUSION Chlorophyll was for the first time illuminated as an important source of matrix interference to the immunoassay of procymidone in vegetables. A new pretreatment based on 5-sulfosalicylic acid was established to remove chlorophyll and therefore eliminate the matrix effect. Validated with different vegetable samples, the new technique was demonstrated much better efficiency in comparison to conventional methods, which indicated its promising application for the development of immunoassays of herb-origin samples. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Ziang Zhang
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Hong Lin
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Jianxin Sui
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xiangning Han
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Luefeng Wang
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xun Sun
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Limin Cao
- Food Safety Laboratory, College of Food Science and Engineering, Ocean University of China, Qingdao, China
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Wang X, Lin H, Qu X, Zheng H, Sui J, Cao L. The effect of fish matrix on colloidal gold immunochromatographic assay of antibiotics: the source of interference and removal method. FOOD AGR IMMUNOL 2018. [DOI: 10.1080/09540105.2018.1483900] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Xiaoxiao Wang
- Food Safety Laboratory, Ocean University of China, Qingdao, People’s Republic of China
| | - Hong Lin
- Food Safety Laboratory, Ocean University of China, Qingdao, People’s Republic of China
| | - Xueli Qu
- Food Safety Laboratory, Ocean University of China, Qingdao, People’s Republic of China
| | - Hongwei Zheng
- Food Safety Laboratory, Ocean University of China, Qingdao, People’s Republic of China
| | - Jianxin Sui
- Food Safety Laboratory, Ocean University of China, Qingdao, People’s Republic of China
| | - Limin Cao
- Food Safety Laboratory, Ocean University of China, Qingdao, People’s Republic of China
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Wang X, Lin H, Cao L, Zheng H, Cui M, Du S, Sui J. Isolation, characterization, and identification of proteins interfering with enzyme-linked immunosorbent assay of antibiotics in fish matrix. Food Sci Biotechnol 2016; 25:1265-1273. [PMID: 30263404 PMCID: PMC6049289 DOI: 10.1007/s10068-016-0200-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 07/04/2016] [Accepted: 07/17/2016] [Indexed: 11/28/2022] Open
Abstract
The interaction between some proteins and immune globulin has been confirmed as an important source of matrix interference with the immunoassay of fishery products, but detailed biochemical properties of these proteins have not been indicated. Two interference-inducing proteins (42 and 36 kD) in flounder were isolated, characterized, and identified. Their influences on the immunoassay of norfloxacin were confirmed by western blotting and enzyme-linked immunosorbent assay. The pI value and pH stability of the two proteins were also investigated. Using LC-MS/MS, the two proteins were identified as fructose-bisphosphate aldolase, and such results were partly verified by the aldolase activity of the 42 and 36 kD isolates. Considering the prevalence of these proteins (as multi-functional aldolase of muscles) in foods, these results would help to further understand the matrix effects in various immunoassays as well as the development of effective techniques to improve the efficiency of immunoassays.
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Affiliation(s)
- Xiudan Wang
- Food Safety Laboratory, Ocean University of China, Qingdao, 266003 China
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Hong Lin
- Food Safety Laboratory, Ocean University of China, Qingdao, 266003 China
| | - Limin Cao
- Food Safety Laboratory, Ocean University of China, Qingdao, 266003 China
| | - Hongwei Zheng
- Food Safety Laboratory, Ocean University of China, Qingdao, 266003 China
| | - Mengqi Cui
- Food Safety Laboratory, Ocean University of China, Qingdao, 266003 China
| | - Shuyuan Du
- Food Safety Laboratory, Ocean University of China, Qingdao, 266003 China
| | - Jianxin Sui
- Food Safety Laboratory, Ocean University of China, Qingdao, 266003 China
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Determination of Neomycin in Aquatic Products Using an Immunoaffinity Column Coupled to High-Performance Liquid Chromatography. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0589-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Zhao Y, Li G. Detection of Penicillinase in Milk by Sandwich ELISA Based Polyclonal and Monoclonal Antibody. J Immunoassay Immunochem 2015; 37:80-9. [PMID: 26023821 DOI: 10.1080/15321819.2015.1050108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A sandwich ELISA has been developed using polyclonal and monoclonal antibody for the determination of penicillinase in milk. For this purpose, specific polyclonal and monoclonal antibodies against penicillinase were generated and characterized. Using penicillinase standards prepared from 1-128 ng/mL, the method indicated that the detection limit of the sandwich ELISA, as measured in an ELISA plate reader, was as low as 0.86 ng/mL of penicillinase. For determine the accuracy, raw milk containing 2, 8, 32, and 64 ng/mL of penicillinase were tested by sandwich ELISA. Recoveries were from 93-97.5%, and the coefficient of variation [CV (%)] were from 5.55-8.38%. For interassay reproducibility, recoveries were from 89.5-95.1%, the coefficient of variation [CV (%)] were from 5.26-9.58%. This sandwich ELISA provides a useful screening method for quantitative detection of penicillinase in milk.
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Affiliation(s)
- Yinli Zhao
- a College of Bioengineering , Henan University of Technology , Zhengzhou , China
| | - Guoxi Li
- b Animal Husbandry and Veterinary Engineering , Henan Agricultural University , Zhengzhou , China
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