β-Cyclodextrin decorated nanocellulose: a smart approach towards the selective fluorimetric determination of danofloxacin in milk samples

The Analyst
Celia Ruiz-PalomeroMiguel Valcárcel

Abstract

An innovative and versatile strategy of Solid Phase Microextraction (SPME) is shown by using a new type of β-cyclodextrin-modified nanocellulose (CD-NC) as a sorbent material. β-cyclodextrin (used as an inclusion-type selector) was covalently bonded to amine-modified nanocellulose by an amidation reaction. Such novel nanocavities were successfully applied to the selective recognition of danofloxacin (DAN), an antibiotic used to treat animal diseases, via supramolecular host-guest interactions. The SPME methodology, using a platform based on β-cyclodextrin-"decorated" nanocellulose as a sorbent material, showed a wide linear fluorimetric response against DAN from 8 to 800 μg L(-1) and a detection limit of 2.5 μg L(-1). The specific recognition of DAN has been proven to be highly selective and efficient against this metabolite and other fluoroquinolones. The reusability and the high efficiency in the extraction and preconcentration of DAN in milk samples allow recoveries of 94%.

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Citations

Oct 4, 2016·Trends in Analytical Chemistry : TRAC·Qihui ZhangChun-Su Yuan
Sep 4, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Z C LiuK Li
Apr 10, 2020·Advanced Materials·Yang YangKai Zhang
May 24, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Bastien MichelKristin Syverud
Dec 19, 2020·International Journal of Nanomedicine·Silvia TortorellaErica Locatelli
Sep 24, 2021·Critical Reviews in Food Science and Nutrition·Esmaeil SheibaniHermann Ehrlich

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