Microwave synthesis of a novel magnetic imprinted TiO2 photocatalyst with excellent transparency for selective photodegradation of enrofloxacin hydrochloride residues solution

Membrane emulsification technology: Twenty-five years of inventions and research through patent survey

Rapid and selective extraction of multiple macrolide antibiotics in foodstuff samples based on magnetic molecularly imprinted polymers.

Highly sensitive and selective erythromycin nanosensor employing fiber optic SPR/ERY imprinted nanostructure: Application in milk and honey.

Structured microparticles with tailored properties produced by membrane emulsification

BACKGROUND: There are few reports on erythromycin molecularly imprinted polymers (MIPs) used as HPLC stationary phase and solid phase extraction matrices. These imprinted polymers are prepared by bulk polymerization, which is tedious and time-consuming, and they are irregular and possess poor reproducibility and low binding capacity. In this study, molecularly imprinted microspheres for erythromycin were prepared by aqueous suspension polymerization for the first time.

Preparation, characterization and adsorption performance of molecularly imprinted microspheres for erythromycin using suspension polymerization

Preparation of molecularly imprinted nanospheres by premix membrane emulsification technique

Preparation method of molecular imprinting polymer micro-sphere with uniform size and application

Preparation of uniform size molecularly imprinted nanospheres for erythromycin with good selectivity and high binding capacity by precipitation polymerization were presented, in which erythromycin, methacrylic acid and ethylene glycol dimethacrylate are used as template molecule, functional monomer and cross-linker, respectively. The synthesis conditions of molecularly imprinted nanospheres were optimized and the optimal molar ratio of erythromycin to functional monomer is 1:3. The molecularly imprinted polymers were characterized by scanning electron microscope, laser particle size analyzer and BET, respectively. The results suggested that molecularly imprinted nanospheres for erythromycin exhibited spherical shape and good monodispersity. Selectivity analysis indicated that the imprinted nanospheres could specifically recognize erythromycin from its structure analogues. Furthermore, adsorption kinetics and adsorption isotherm of the imprinted nanospheres were employed to investigate the binding characteristics of the imprinted nanospheres. The results showed that the imprinted nanospheres have high adsorption capacity for erythromycin, and the maximum theoretical static binding capacity is up to 267.0188 mg g(-1).

Synthesis, characterization and adsorption behavior of molecularly imprinted nanospheres for erythromycin using precipitation polymerization.

The invention discloses a molecularly imprinted polymer nano-microsphere with average grain size of 200 nm to 100 microns and with grain size distribution coefficient C.V. of not more than 20%. The preparation method comprises the following steps of: firstly, mixing a dispersed-phase solution containing template molecules and a continuous-phase solution to obtain an original emulsion; secondly, filtering the original emulsion by a microporous membrane at a preset pressure to obtain an emulsion with uniform grain size; thirdly, performing cross-linking polymerization on the emulsion in nitrogen to obtain polymer nano-microspheres; fourthly, washing the obtained polymer nano-microspheres to remove template molecules and non-reacted functional monomers in the polymer; and finally, obtaining the molecularly imprinted polymer nano-microspheres with uniform size.

Xing Kou

Papers

Preparation, characterization and adsorption performance of molecularly imprinted microspheres for erythromycin using suspension polymerization

Preparation of molecularly imprinted nanospheres by premix membrane emulsification technique

Preparation method of molecular imprinting polymer micro-sphere with uniform size and application

Synthesis, characterization and adsorption behavior of molecularly imprinted nanospheres for erythromycin using precipitation polymerization.

Method for preparing molecularly imprinted polymer nano-microspheres with uniform size and application thereof