The ability to sample environments for multiple harmful substances in real time is of great importance. Having tools that ensure the ability to accurately and cost effectively sense and transmit chemical contaminant information extracted from water has implications for health, safety, regulatory compliance, the environment impacts and commerce; however, there are no universal screening devices currently available that can provide real time screening without sample collection, packaging and shipping to a laboratory for chemical analysis. The objective of this work is to develop a lab-scale prototype system that demonstrates a novel, real-time, low cost chemical sensing and data delivery platform. In this presentation we overview our development of a chemical sensor that will combine passive sampling techniques with targeted chemical interactions to detect multiple contaminants in water and communicate results via Near Field Communication.  We will discuss the progress developing printable carbon nanotube (CNT) sensors for identifying aqueous contaminants,  including: development of customized CNT receptors, incorporation of these CNTs into printable inks, challenges and opportunities in printing CNT-based sensors, methods of transducing contaminant binding into electrical signals, and integrating these sensors with NFC to relay signals to a cellular reporting application.

Printed carbon nanotube sensor technology for detection, collection and reporting of water contaminants

256th National Meeting (2018)

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