کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1202395 1493674 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and characterization of enrofloxacin-imprinted monolith prepared with crowding agents
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Preparation and characterization of enrofloxacin-imprinted monolith prepared with crowding agents
چکیده انگلیسی

Molecular crowding is a new approach to promoting molecular imprinting more efficiently. In this work, this concept was applied to the preparation of imprinted monoliths in the presence of molecular crowding agent for stabilizing binding sites and improving molecular recognition. The imprinted monolithic column was synthesized using a mixture of enrofloxacin (template), methacrylic acid, ethylene glycol dimethacrylate, and polystyrene (molecular crowding agent). Some polymerization factors, such as template–monomer molar ratio and the composition of the porogen, on the imprinting effect of resulting MIP monolith were systematically investigated. Moreover, a stoichiometric displacement model for retention was successfully applied to evaluate the interaction between the solute and the stationary phase. Compared with the MIP prepared by conventional polymerization, the molecular crowding-based monolithic MIPs showed higher selectivity. The results suggested that molecular crowding is a powerful strategy to increase the effect of molecular imprinting.


► An enrofloxacin imprinted monolith was synthesized using polystyrene as molecular crowding agent.
► Polymerization factors on the imprinting effect of MIP monolith were investigated.
► Molecular crowding-based monolithic MIPs showed higher selectivity.
► Stoichiometric displacement study demonstrated that affinity potential is the major factor in the imprinting system based on molecular crowding.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1251, 17 August 2012, Pages 141–147
نویسندگان
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