Layer-by-layer fabrication of restricted access media-molecularly imprinted magnetic microspheres for magnetic dispersion microextraction of bisphenol A from milk samples

2015 ◽  
Vol 39 (3) ◽  
pp. 1792-1799 ◽  
Author(s):  
Yun-Kai Lv ◽  
Yan-Dong He ◽  
Xue Xiong ◽  
Jin-Zhi Wang ◽  
Hai-Yan Wang ◽  
...  
Keyword(s):  
Molecular Recognition ◽  
Bisphenol A ◽  
Magnetic Microspheres ◽  
Layer By Layer ◽  
Magnetic Microsphere ◽  
Molecularly Imprinted ◽  
Restricted Access ◽  
Milk Samples ◽  
Restricted Access Media

A novel hydrophilic BPA-imprinted magnetic microsphere was prepared with specific molecular recognition (2.54), water compatibility and exclusion biomacromolecules.

Fast clean-up and selective enrichment of florfenicol in milk by restricted access media molecularly imprinted magnetic microspheres based on surface-initiated photoiniferter-mediated polymerization

2016 ◽  
Vol 8 (19) ◽  
pp. 3982-3989 ◽  
Author(s):  
Yun-Kai Lv ◽  
Jing Zhang ◽  
Meng-Zhe Li ◽  
Shao-Dan Zhou ◽  
Xing-Hui Ren ◽  
...  
Keyword(s):  
Magnetic Microspheres ◽  
Molecularly Imprinted ◽  
Restricted Access ◽  
Selective Enrichment ◽  
Milk Samples ◽  
Restricted Access Media

A novel RAM-MIMM with water-compatible, exclusion biomacromolecules and selective enrichment analytes was prepared using a surface-initiated iniferter technique for magnetic dispersion extraction of trace florfenicol from milk samples.

Supercritical CO2-assisted synthesis of an ultrasensitive amphibious quantum dot-molecularly imprinted sensor

RSC Advances ◽  
2014 ◽  
Vol 4 (108) ◽  
pp. 63338-63341 ◽  
Author(s):  
A. Lourenço ◽  
R. Viveiros ◽  
A. Mouro ◽  
J. C. Lima ◽  
V. D. B. Bonifácio ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Molecular Recognition ◽  
Quantum Dot ◽  
Bisphenol A ◽  
Molecular Imprinting ◽  
Supercritical Co2 ◽  
Molecularly Imprinted ◽  
Low Concentrations

A green supercritical CO2-assisted molecular imprinting protocol enabled the production of smart sensory particles, incorporating quantum dots, with molecular recognition to bisphenol A at very low concentrations (4 nM).

scholarly journals Preparation of Restricted Access Media-Molecularly Imprinted Polymers for the Detection of Chloramphenicol in Bovine Serum

2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Shanwen Zhao ◽  
Chanling Wei ◽  
Zhian Sun ◽  
Huachun Liu ◽  
Yanqiang Zhou ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Bovine Serum ◽  
Crosslinking Agent ◽  
Template Molecule ◽  
Functional Monomer ◽  
Molecularly Imprinted ◽  
Restricted Access ◽  
Imprinted Polymers ◽  
Relative Standard ◽  
Restricted Access Media

Chloramphenicol- (CAP-) restricted access media-molecularly imprinted polymers (CAP-RAM-MIPs) were prepared by precipitation polymerization using CAP as a template molecule, 2-diethylaminoethyl methacrylate (DEAEM) as a functional monomer, ethylene glycol dimethyl acrylate (EDMA) as a crosslinking agent, glycidyl methacrylate (GMA) as an outer hydrophilic functional monomer, and acetonitrile as a pore former and solvent. The CAP-RAM-MIPs were successfully characterized by Fourier-transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The adsorption performance was investigated in detail using static, dynamic, and selective adsorption experiments. Adsorption equilibrium could be reached within 11 min. The CAP-RAM-MIPs had a high adsorption rate and good specific adsorption properties. Scatchard fitting curves indicated there were two binding sites for CAP-RAM-MIPs. Adsorption was Freundlich multilayer adsorption and consistent with the quasi-second kinetic model. Using CAP-RAM-MIPs for selective separation and enrichment CAP in bovine serum in combination with high-performance liquid chromatography (HPLC), CAP recovery ranged from 94.1 to 97.9% with relative standard deviations of 0.7–1.5%. This material has broad application prospects in enrichment and separation.

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