A photoresponsive surface molecularly imprinted polymer shell for determination of trace griseofulvin in milk.
Mater Sci Eng C Mater Biol Appl
; 92: 365-373, 2018 Nov 01.
Article
em En
| MEDLINE
| ID: mdl-30184762
ABSTRACT
A new photoresponsive surface molecularly imprinted polymer shell (PMIPS) was developed for determination of trace griseofulvin from milk. The PMIPS was prepared by surface imprinting technique using poly(styrene-co-methacrylic acid) (PS-co-PMMA) microspheres as the sacrificial substrate, griseofulvin as the template, a photoresponsive azobenzene derivative 4-((4-(methacryloyloxy)phenyl)diazenyl)-3,5-dimethyl benzenesulfonic acid as the functional monomer, and triethanolamine trimethacrylate as the cross-linker. The PMIPS was obtained after the removal of the sacrificial PS-co-PMMA core from the surface imprinted core-shell microspheres, PS-co-PMAA@PMIP. Compared with PS-co-PMAA@PMIP, PMIPS displayed better properties such as higher surface area and pore volume, rapid photo-isomerization rate, and higher adsorption capacities, specific binding constant and binding density. The PMIPS could efficiently detect griseofulvin in complex samples such as milk.
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Base de dados:
MEDLINE
Assunto principal:
Polímeros
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Leite
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Impressão Molecular
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Griseofulvina
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Luz
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article