MIPdatabase
Authors: Xu XM, Xu GH, Wei FD, Cen Y, Shi ML, Cheng X, Chai YY, Sohail M, Hu Q
Article Title: Carbon dots coated with molecularly imprinted polymers: A facile bioprobe for fluorescent determination of caffeic acid.
Publication date: 2018
Journal: Journal of Colloid and Interface Science
Volume: 529
Page numbers: 568-574.
DOI: 10.1016/j.jcis.2018.06.050
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0021979718306982
Abstract: A new and sensitive method for fluorescent determination of caffeic acid (CA) was proposed based on silane-functionazed carbon dots coated with molecularly imprinted polymers (CDs@MIPs). CDs@MIPs were prepared by using CA as the templates on the surface of silane-functionazed carbon dots(CDs) with a sol-gel process. The as-prepared CDs@MIPs were characterized by Fourier transform infrared spectroscopy, transmission electron microscopy and fluorescence spectroscopy. The CDs@MIPs exhibited distinguished selectivity and high binding affinity to CA templates, and also showed good reusability. Under optimal conditions, the fluorescence intensity of CDs@MIPs decreased linearly with the increase of CA in the range of 0.5-200 μM. The limit of detection was 0.11 μM (3σ/K). Finally, the proposed method was successfully applied to the detection of CA in human plasma. The result indicates that the method built has promising potential for monitoring CA concentration in clinic
Template and target information: caffeic acid, CA
Author keywords: Carbon dots, Molecularly imprinted polymers, caffeic acid, fluorescent sensor
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