Concentration dependent atrazine-atrazine complex formation promotes selectivity in atrazine imprinted polymers

Lavignac, Nathalie and Brain, Keith R. and Allender, Christopher J. (2006) Concentration dependent atrazine-atrazine complex formation promotes selectivity in atrazine imprinted polymers. Biosensors and Bioelectronics, 22 (1). pp. 138-144. ISSN 0956-5663. (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/10.1016/j.bios.2006.03.017

Abstract

An atrazine (ATR) molecularly imprinted polymer (MIP) was prepared using a non-covalent strategy. The affinity and selectivity of the polymer was initially evaluated under non-equilibrium conditions and the polymer was shown to possess good template selectivity. The selectivity of the polymer was further investigated under equilibrium conditions and over a range of concentrations using Scatchard plots and Hill plots and by assessing distribution coefficients and normalised selectivity values. It was observed that both selectivity and affinity were dependent on the concentration of the ligand and that unusually selectivity and affinity were better at higher atrazine concentrations. It was concluded that this phenomenon resulted from the formation of atrazine-atrazine complexes during the pre-polymerisation stage and during rebinding and that the polymer demonstrated improved atrazine affinity when the conditions favoured complex formation.

Item Type: Article
Additional information: Times Cited: 3
Uncontrolled keywords: Molecularly imprinted polymer; Atrazine; Cooperative interaction; Hill plot
Subjects: Q Science > QD Chemistry
Divisions: Faculties > Science Technology and Medical Studies > Medway School of Pharmacy
Depositing User: Nathalie Lavignac
Date Deposited: 02 Jun 2009 07:45
Last Modified: 22 Apr 2014 14:44
Resource URI: http://kar.kent.ac.uk/id/eprint/18604 (The current URI for this page, for reference purposes)
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