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Electrochemical transistors with ionic liquids for enzymatic sensing

Fraser, Kevin J. and Yoon Yang, Sang and Cicoira, Fabio and Curto, Vincenzo F. and Byrne, Robert and Benito-Lopez, Fernando and Khodagholy, Dion and Owens, Roisin and Malliaras, George and Diamond, Dermot (2011) Electrochemical transistors with ionic liquids for enzymatic sensing. In: SPIE 8118 Organic Semiconductors in Sensors and Bioelectronics IV, 21-25 Aug 2011, San Diego, CA.. (In Press)

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Abstract

Over the past decade conducting polymer electrodes have played an important role in bio-sensing and actuation. Recent developments in the field of organic electronics have made available a variety of devices that bring unique capabilities at the interface with biology. One example is organic electrochemical transistors (OECTs) that are being developed for a variety of bio-sensing applications, including the detection of ions, and metabolites, such as glucose and lactate. Room temperature ionic liquids (RTILs) are organic salts, which are liquid at ambient temperature. Their non- volatile character and thermal stability makes them an attractive alternative to conventional organic solvents. Here we report an enzymatic sensor based on an organic electro-chemical transistor with RTIL’s as an integral part of its structure and as an immobilization medium for the enzyme and the mediator. Further investigation shows that these platforms can be incorporated into flexible materials such as carbon cloth and can be utilized for bio-sensing. The aim is to incorporate the overall platform in a wearable sensor to improve athlete performance with regards to training. In this manuscript an introduction to ionic liquids (ILs), IL – enzyme mixtures and a combination of these novel materials being used on OECTs are presented.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Refereed:No
Uncontrolled Keywords:Phosphonium Ionic Liquids; Glucose Oxidase; Enzymes; Electrochemical transistors; OECTS
Subjects:Engineering > Materials
Physical Sciences > Chemistry
DCU Faculties and Centres:Research Initiatives and Centres > CLARITY: The Centre for Sensor Web Technologies
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Marie Curie Actions International Re-integration Grant (IRG) (PIRG07-GA-2010-268365), Irish Research Council for Science, Engineering and Technology, Science Foundation Ireland (SFI) under the CLARITY CSET award (Grant 07/CE/I1147), Marie Curie International Reintegration Grant (Grant PIRG06-GA-256367 CELLTOX), Research Career Start Programme 2010 fellowship from Dublin City University, National Science Foundation (Grant ECS-0335765)
ID Code:16473
Deposited On:25 Aug 2011 14:09 by Kevin Fraser. Last Modified 30 Sep 2011 10:41

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