4 September 2015 A paper-based all organic ion sensor
Author Affiliations +
Using a so called pulsetrode concept and two identical ion selective electrodes (ISEs), the concentration of alkali metal ions can be measured without using a reference electrode. This measurement method was demonstrated recently, using all organic ISEs which have been fabricated by simplest means on a plain sheet of paper. Though, this low-cost, all organic ion sensing platform exhibited excellent stability over three months, it required a time consuming conditioning prior to measurement (>1 h). Here, we present a new measurement method which employs a square wave current rather than a single current pulse which is followed by a long regeneration time. This method reduces the conditioning time to 6 minutes, using the same low-cost sensing platform. Furthermore, after the initial conditioning, a quasi continuous measurement is possible. Additionally, using ISEs with different surface areas, a low-cost and simple threshold sensor is demonstrated.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Johannes Kofler, Johannes Kofler, Sebastian Nau, Sebastian Nau, Emil J. W. List-Kratochvil, Emil J. W. List-Kratochvil, } "A paper-based all organic ion sensor", Proc. SPIE 9568, Organic Field-Effect Transistors XIV; and Organic Sensors and Bioelectronics VIII, 95681L (4 September 2015); doi: 10.1117/12.2187546; https://doi.org/10.1117/12.2187546


Interfacial effects in nematic liquid crystals
Proceedings of SPIE (December 13 1999)
DMS IMS2, GC DMS, DMS MS DMS hybrid devices...
Proceedings of SPIE (April 16 2008)
Study of the effects of ionic liquids on lipid bilayers
Proceedings of SPIE (April 03 2012)

Back to Top