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Abstract

Molecularly Imprinted Polymers for TNT Analogues. Development of Electrochemical TNT Biosensors †

Department of Chemistry, Universitat Autònoma de Barcelona, Edifici Cn, 08193 Bellaterra (Barcelona), Spain
*
Author to whom correspondence should be addressed.
Presented at the 5th International Symposium on Sensor Science (I3S 2017), Barcelona, Spain, 27–29 September 2017.
Proceedings 2017, 1(8), 731; https://doi.org/10.3390/proceedings1080731
Published: 6 December 2017
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.

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MDPI and ACS Style

Herrera-Chacon, A.; Campos, I.; Bottone, L.; Valle, M.d. Molecularly Imprinted Polymers for TNT Analogues. Development of Electrochemical TNT Biosensors. Proceedings 2017, 1, 731. https://doi.org/10.3390/proceedings1080731

AMA Style

Herrera-Chacon A, Campos I, Bottone L, Valle Md. Molecularly Imprinted Polymers for TNT Analogues. Development of Electrochemical TNT Biosensors. Proceedings. 2017; 1(8):731. https://doi.org/10.3390/proceedings1080731

Chicago/Turabian Style

Herrera-Chacon, Anna, Inmaculada Campos, Lourdes Bottone, and Manel del Valle. 2017. "Molecularly Imprinted Polymers for TNT Analogues. Development of Electrochemical TNT Biosensors" Proceedings 1, no. 8: 731. https://doi.org/10.3390/proceedings1080731

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