ترجمه آماده – ذرات میکروسکوپی (میکروذرات) مغناطیسی نقش بندی

Abstract

Core–shell magnetic silica nanoparticles coated by molecularly imprinted polymer (Fe3O4@SiO2@MIP,M-MIP) accompanied with fluorescence resonance energy transfer (FRET) responsivity have been suc-cessfully prepared for simultaneous selective detection and extraction of trace organic dye, RhodamineB (RhB).

The M-MIP showed the advantage of rapid mass transfer and binding kinetics and significantselectivity for RhB molecules with a maximum adsorption capacity of 29.64 mg/g. Notably, RhB, the tem-plate molecule acted as the acceptor, while the nitrobenzoxadiazole (NBD−) fluorophores containing inthe MIP layer of M-MIP, introduced by the functional monomer molecules, acted as the donor in FRETprocess, which could be used to detect trace RhB base on the change of fluorescence signal.

The simultane-ous sensitive detection and selective extraction for RhB and easy magnetic separation of M-MIP indicatedthat the core–shell M-MIPs had the potential to be a kind of good sensor and adsorbent for specific dyein the application of food safety and environmental science.