Towards “Green” Smart Materials for Force and Strain Sensors : The Case of Polyaniline

Stress/strain sensors constitute a class of devices with a global ever-growing market thanks to their use in many fields of modern life. As an alternative to the traditional compounds, that exhibit low inherent resistivity and limited flexibility, in the present work we will show the advantages to employ a smart material, polyaniline (PANI), prepared by an innovative green route, for force/strain sensor applications, wherein simple processing, environmental friendliness and sensitivity are particularly required.