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Maria Nikolou and George G. Malliaras Applications of poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonic acid) transistors in chemical and biological sensors The Chemical Record 8

Version of Record online: 26 FEB 2008 | DOI: 10.1002/tcr.20133

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The poly(3,4-ethylenedioxythiophene) doped with poly(styrene sulfonic acid) (PEDOT:PSS) organic electrochemical transistor (OECT) appears to be one of the most promising transducers for chemical and biological sensor applications. This is due to the enormous potential it presents for facile processing of small, portable, and inexpensive sensors ideally suited for point-of-care analysis. The inherent signal amplification of this device allows for small sample volume and ease of incorporation into circuits. In addition, it operates at low voltages, and its simplified structure can be printed on flexible substrates. These characteristics give the OECTs a unique advantage over other devices. PEDOT:PSS-based OECTs can be used in gaseous or aqueous environments to detect a wide range of target analytes for a variety of possible applications in fields such as health care, environmental monitoring, and food industry.

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