Self-maintained colorimetric acid/base sensor using polypyrrole actuator

Authors

Gordon G. Wallace, University of WollongongFollow
Yanzhe Wu, University of WollongongFollow
Geoffrey M. Spinks, University of WollongongFollow
Roderick L. Shepherd, University of WollongongFollow
King-Tong Lau, Dublin City University
Ciaran Smyth, Dublin City University
Dermot Diamond, Dublin City University

RIS ID

27156

Publication Details

Smyth, C., Lau, K., Shepherd, R. L., Diamond, D., Wu, Y., Spinks, G. Maxwell. & Wallace, G. G. (2008). Self-maintained colorimetric acid/base sensor using polypyrrole actuator. Sensors and Actuators B: Chemical: international journal devoted to research and development of physical and chemical transducers, 129 518-524.

Abstract

A novel approach to autonomous chemical sensor regeneration is explored in this paper. It involves the movement of a sensor surface into measurement or regeneration zones using low powered conducting polymer actuators. The system demonstrated the feasibility of repeatedly cycling through a measurement–regeneration regime, which in principle allows remotely deployed chemical sensors to perform simple self-diagnostics. The sensor-actuator device is shown to repeatedly switch through 120 measurement–regeneration cycles. Detection of pH-dependent colour changes is demonstrated using LED-based colorimetry and remotely deployed video cameras.

Grant Number

ARC/FF0669110

Additional Grant Number

http://purl.org/au-research/grants/ARC/FF0669110