Photoresponsive molecularly imprinted hydrogel casting membrane for the determination of trace tetracycline in milk

Wang, Qiang; Lv, Zhen; Tang, Qian; Gong, Cheng-Bin; Lam, Michael; Ma, Xuebing; Chow, Cheuk Fai Stephen

doi:10.1002/jmr.2461

Cited by 22 publications

(2 citation statements)

References 37 publications

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“…Protein precipitation in milk and egg samples involves the use of organic solvents including acetonitrile [6,10,23,46,51], methanol [52][53][54][55] or acetone [56], as well as the combination of these solvents with acid compounds, such as trichloroacetic acid [46,[57][58][59][60][61], trifluoroacetic acid [62,63], glacial acetic acid [64][65][66], succinic acid [67,68], citric acid [23,69], formic acid [54,70], or perchloric acid [71]. Other authors have used McIlvaine-EDTA [6,[72][73][74][75][76][77][78][79], sodium citrate [10], oxalate [63], sodium succinate [80] and phosphate [81] buffers as deproteinizing agents for the treatment of these samples.…”

Section: Solvent Extractionmentioning

confidence: 99%

An overview of the main foodstuff sample preparation technologies for tetracycline residue determination

Pérez-Rodríguez

Pellerano

Pezza

et al. 2018

Talanta

142

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Tetracyclines are widely used for both the treatment and prevention of diseases in animals as well as for the promotion of rapid animal growth and weight gain. This practice may result in trace amounts of these drugs in products of animal origin, such as milk and eggs, posing serious risks to human health. The presence of tetracycline residues in foods can lead to the transmission of antibiotic-resistant pathogenic bacteria through the food chain. In order to ensure food safety and avoid exposure to these substances, national and international regulatory agencies have established tolerance levels for authorized veterinary drugs, including tetracycline antimicrobials. In view of that, numerous sensitive and specific methods have been developed for the quantification of these compounds in different food matrices. One will note, however, that the determination of trace residues in foods such as milk and eggs often requires extensive sample extraction and preparation prior to conducting instrumental analysis. Sample pretreatment is usually the most complicated step in the analytical process and covers both cleaning and pre-concentration. Optimal sample preparation can reduce analysis time and sources of error, enhance sensitivity, apart from enabling unequivocal identification, confirmation and quantification of target analytes. The development and implementation of more environmentally friendly analytical procedures, which involve the use of less hazardous solvents and smaller sample sizes compared to traditional methods, is a rapidly increasing trend in analytical chemistry. This review seeks to provide an updated overview of the main trends in sample preparation for the determination of tetracycline residues in foodstuffs. The applicability of several extraction and clean-up techniques employed in the analysis of foodstuffs, especially milk and egg samples, is also thoroughly discussed.

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Section: Solvent Extractionmentioning

confidence: 99%

An overview of the main foodstuff sample preparation technologies for tetracycline residue determination

Pérez-Rodríguez

Pellerano

Pezza

et al. 2018

Talanta

142

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“…Imprinted hydrogel membranes are already present in the literature [22,23]. Hydrogels have high water content and good biocompatibility [24], and can maintain protein conformation.…”

Section: Introductionmentioning

confidence: 99%

Adsorption and Electrochemical Detection of Bovine Serum Albumin Imprinted Calcium Alginate Hydrogel Membrane

Zhao

Bao

et al. 2019

Polymers

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In this paper, bovine serum albumin (BSA)-imprinted calcium alginate (CaAlg) hydrogel membrane was prepared using BSA as a template, sodium alginate (NaAlg) as a functional monomer, and CaCl2 as a cross-linker. The thickness of the CaAlg membrane was controlled by a glass rod enlaced with brass wires (the diameter was 0.1, 0.2, 0.3, 0.4, and 0.5 mm). The swelling properties of the CaAlg membranes prepared with different contents of NaAlg were researched. Circular dichroism indicated that the conformation of BSA did not change during the preparing and eluting process. The thinner the CaAlg hydrogel membrane was, the larger the adsorption capacity and the higher the imprinting efficiency of the CaAlg. The maximum adsorption capacity of molecularly imprinted polymer (MIP) and non-imprinted CaAlg hydrogel membrane (NIP) was 38.6 mg·g−1 and 9.2 mg·g−1, respectively, with an imprinting efficiency of 4.2. The MIP was loaded on the electrode to monitor the selective adsorption of BSA by voltammetry curve.

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Advanced Imprinted Materials for Virus Monitoring

Altıntaş

2016

Advanced Molecularly Imprinting Materials

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Photoresponsive molecularly imprinted hydrogel casting membrane for the determination of trace tetracycline in milk

Cited by 22 publications

References 37 publications

An overview of the main foodstuff sample preparation technologies for tetracycline residue determination

An overview of the main foodstuff sample preparation technologies for tetracycline residue determination

Adsorption and Electrochemical Detection of Bovine Serum Albumin Imprinted Calcium Alginate Hydrogel Membrane

Advanced Imprinted Materials for Virus Monitoring

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