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Reference type: Journal
Authors: Roy E, Patra S, Madhuri R, Sharma PK
Article Title: Development of an imprinted polymeric sensor with dual sensing property for trace level estimation of zinc and arginine.
Publication date: 2015
Journal: Materials Science and Engineering: C
Volume: 49
Page numbers: 25-33.
DOI: 10.1016/j.msec.2014.12.066
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0928493114008649

Abstract: Using virtuousness of multi-template imprinting and selectivity of single-template imprinting, for the first time, we have prepared an imprinted polymer matrix that can detect two target analyte viz., Zn2 + and arginine in single motif. For the preparation of imprinted polymer network, a new monomer {2-acrylamido-4-(methylthio)butanoic acid} was synthesized, which gives a biocompatible polymer network. Herein, the synthesized imprinted polymer mixed with multi-walled carbon nanotubes was immobilized onto the surface of platinum electrode to develop an electrochemical sensor for quantitative recognition of Zn2 + and arginine using differential pulse voltammetry. Cyclic voltammetry, electrochemical impedance spectroscopy, and chronocoulometric analysis were also performed to study the kinetics of zinc-arginine complex. Under the optimal conditions the linear range of the calibration curve for Zn2 + and arginine was 0.04-310.0 ng mL-1 and 0.04-235.0 ng mL-1, with the detection limit of 18.0 and 15.0 pg mL-1. The sensor has been successfully applied to the determination of Zn2 + and arginine in water, food, and pharmaceutical samples and achieved high sensitivity and selectivity
Template and target information: zinc ion, Zn(II), arginine, dual template
Author keywords: Multi-template imprinting, Zn2+, Arginine, biocompatible, Multi-walled carbon nanotubes, Electrochemical sensor

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