期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 252, 期 -, 页码 846-853出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.06.078
关键词
Propranolol; Nano plastic antibody; CdTe quantum dots; Fluorimetric sensor; Reverse microemulsion technique
In this work, a nano plastic antibody has been developed for the determination of an important drug, propranolol. For this purpose, water-soluble thioglycolic acid stabilized CdTe QDs (TGA-stabilized CdTe QDs), as a support for the plastic antibody, was synthesis via a refluxing method. Following, reverse micro emulsion technique was applied to stabilize a thin silica shell on the surface of the QDs. In the next step, molecularly imprinted polymer embedded CdTe QDs were obtained using 3-aminepropyl triethoxysilane (as a monomer) and tetraethoxysilane (as a crosslinker) in the present of propranolol. Finally, the obtained nano plastic antibody was used for propranolol sensing. At the optimized conditions, a linear dynamic range was obtained from 3.0 to 139 mu mol L-1 propranolol with a detection limit as 0.7 mu mol L-1. The precision of the method for 30.0 and 70.0 mu mol L-1 propranolol was obtained as 6.5% and 4.8% (3 replicate detections), respectively. The proposed method is simple, selective, and cost-efficient for propranolol measurement. (C) 2017 Elsevier B.V. All rights reserved.
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