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Reference type: Journal
Authors: Herrera-Chacon A, Campos I, Bottone L, del Valle M
Article Title: Molecularly Imprinted Polymers for TNT Analogues. Development of Electrochemical TNT Biosensors.
Publication date: 2017
Journal: Proceedings
Volume: 1
Issue: (8)
Page numbers: ArticleNo731.
DOI: 10.3390/proceedings1080731
Alternative URL: http://www.mdpi.com/2504-3900/1/8/731

Abstract: Trinitrotoluene (TNT) is a widely employed explosive compound; for that reason, an electrochemical sensor able to perform on-field measurements could be an interesting tool. In this work, a molecularly imprinted polymer using the TNT analogue DNP as a template is developed. Next, the obtained MIP is chemically characterized towards DNP and TNT. MIPs synthesis was done following the protocol by co-precipitation using methacrylic acid (MAA) as a monomer, ethylene glycol ethylene glycol dimethylacrylate (EGDMA) as a crosslinker, azobisisobutyronitrile (AIBN) as a radical indiciator and ethanol as a solvent. Template removal was performed with a Soxhlet using MeOH:HAc. Control non-imprinted polymers (NIPs) were also synthesized for the purpose of comparison. Microscopy studies were performed to confirm similar morphologies among these polymers; the material was also characterized by a Scatchard plot to calculate the Kb (the affinity constant) and Bmax (maximum amount bound) values. The presented work reports a polymeric material able to capture TNT and DNP and its preliminary results once implemented as a recognition element in a voltammetric biosensor
Template and target information: analogue template, dinitrotoluene, DNT, trinitrotoluene, TNT

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