P2BM.1 - A Novel Molecularly Imprinted Electrochemical Sensor Based on Dual Sensitization of MOF/CNTs and Prussian Blue for Detection of 17β -estradiol in Water
- Event
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria - Chapter
- P-2 - Biomimetic Sensors
- Author(s)
- D. Duan, Y. Ding, L. Li, L. Zhang, B. Jian, M. Tan, Y. Huang - College of Science, Shanghai University, Shanghai (China)
- Pages
- 686 - 687
- DOI
- 10.5162/IMCS2018/P2BM.1
- ISBN
- 978-3-9816876-9-9
- Price
- free
Abstract
In this paper, a novel molecular imprinted electrochemical sensor (MIECS) for 17β -estradiol (E2) had been constructed. We synthesized MIL-53/CNTs hybrid to modify the glass carbon electrode (GCE) and used Prussian blue (PB) as electrocatalyst to accelerate electron transfer and increase surface area. Then, pyrrole and E2 were used as functional monomers and template respectively to form an imprinted film by electropolymerization. After removal of E2, the obtained molecularly imprinted sensor had been successfully used for detection of trace E2 in water. Under optimal conditions, the MIECS exhibited an excellent sensitivity and high selectivity. Moreover, a wide linear response range was obtained between 10 -14 to 10 -9, with an estimated detection limit of 6.19 × 10 -15 mol L -1. It was more sensitive than most E2 detection methods that had been reported in the past.