Novel Approach for Modeling an Ionic Imprinted Polymer Based SAW Sensor with COMSOL Multiphysics

Proceedings

Zerrouki, Chouki¹  Aloui, Nadia²  Fourati, Najla³  Joly, Nicolas⁴ 

[1] Author to whom correspondence should be addressed.;Laboratoire d’Acoustique de l’Université du Mans UMR CNRS 6613, Le Mans Université, Le Mans 72085, France;Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018;SATIE UMR CNRS 8029, Paris 75003, France

关键词: SAW sensor;    chemosensor;    Non-imprinted polymer;    ionic imprinted polymer (IIP);    IIP before extraction;    IIP after extraction;    lead ions;   

DOI  :  10.3390/proceedings2130975

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

Modeling a Surface Acoustic Wave (SAW) sensor response as a chemosensor and not only as just an electronic transducer was performed with COMSOL Multiphysics. For this study, the SAW’s sensing area was functionalized with an ionic imprinted polymer (IIP), designed for the selective detection of lead ions. The idea consists in subdividing the IIP into elementary blocks whose physical properties can be modified separately. Three configurations have been envisaged: the IIP before and after lead ions extraction and the non-imprinted polymer (NIP). The generation of shear-horizontal waves on LiTaO3 piezoelectric substrate is confirmed by recording the displacement amplitude versus time, according to the three space directions. The sensors sensitivity is estimated from the delays induced by the incorporation of the lead ions in the IIP layer. To the best of our knowledge, this approach has never been presented in the literature.

【 授权许可】

CC BY