We present a method for the development of paper-based electrochemical sensors for detection of heavy metals in water samples. Contaminated water leads to serious health problems and environmental issues. Paper is ideally suited for point-of-care testing, as it is low cost, disposable, and multi-functional. Initial sensor designs were manufactured on paper substrates using combinations of inkjet printing and screen printing technologies using silver and carbon inks. Bismuth onion-like carbon nanoparticle ink was manufactured and used as the active material of the sensor for both commercial and paper-based sensors, which were compared using standard electrochemical analysis techniques. The results highlight the potential of paper-based sensors to be used effectively for rapid water quality monitoring at the point-of-need.
Reference:
Smith, S., Bezuidenhout, P., Mbanjwa, M. et al. 2016. Development of paper-based electrochemical sensors for water quality monitoring. Proceedings of SPIE, Fourth Conference on Sensors, MEMS, and Electro-Optic Systems, 18–20 September 2016 Skukuza, Kruger National Park, South Africa. doi:10.1117/12.2244290
Smith, S., Bezuidenhout, P., Mbanjwa, M., Zheng, H., & Conning, M. (2016). Development of paper-based electrochemical sensors for water quality monitoring. SPIE. http://hdl.handle.net/10204/9337
Smith, Suzanne, Petroné Bezuidenhout, Mesuli Mbanjwa, Haitao Zheng, and Mariette Conning. "Development of paper-based electrochemical sensors for water quality monitoring." (2016): http://hdl.handle.net/10204/9337
Smith S, Bezuidenhout P, Mbanjwa M, Zheng H, Conning M, Development of paper-based electrochemical sensors for water quality monitoring; SPIE; 2016. http://hdl.handle.net/10204/9337 .
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