TY - GEN
T1 - Low-cost solution-processable organic thin-film transistors for (bio)sensing applications
AU - Scarpa, G.
AU - Idzko, A. L.
AU - Munzer, A.
AU - Thalhammer, S.
PY - 2011
Y1 - 2011
N2 - We report on low-operating voltage organic field-effect transistor (OTFT) devices, which can be used as sensors in electrolytes and liquid media, using biofunctionalized, biocompatible, organic semiconducting layers. OTFT-based sensing technologies take advantage of the physical or chemical changes taking place in or around the organic semiconducting material when exposed to different analytes in gaseous or aqueous environments. Measurements in electrolytes and complex media relevant for cell analysis have shown that the devices can be directly used as ion-sensitive transducers and are suitable for in vitro biosensing applications. Within the pH range from 6-8 relevant for cell analysis, an almost linear dependence of the device current with the pH has been observed. At room-temperature, ion-sensitivity of e.g. Na + down to 10 -5 M can be easily achieved.
AB - We report on low-operating voltage organic field-effect transistor (OTFT) devices, which can be used as sensors in electrolytes and liquid media, using biofunctionalized, biocompatible, organic semiconducting layers. OTFT-based sensing technologies take advantage of the physical or chemical changes taking place in or around the organic semiconducting material when exposed to different analytes in gaseous or aqueous environments. Measurements in electrolytes and complex media relevant for cell analysis have shown that the devices can be directly used as ion-sensitive transducers and are suitable for in vitro biosensing applications. Within the pH range from 6-8 relevant for cell analysis, an almost linear dependence of the device current with the pH has been observed. At room-temperature, ion-sensitivity of e.g. Na + down to 10 -5 M can be easily achieved.
UR - http://www.scopus.com/inward/record.url?scp=84856882260&partnerID=8YFLogxK
U2 - 10.1109/ICSENS.2011.6127164
DO - 10.1109/ICSENS.2011.6127164
M3 - Conference contribution
AN - SCOPUS:84856882260
SN - 9781424492886
T3 - Proceedings of IEEE Sensors
SP - 1581
EP - 1582
BT - IEEE Sensors 2011 Conference, SENSORS 2011
T2 - 10th IEEE SENSORS Conference 2011, SENSORS 2011
Y2 - 28 October 2011 through 31 October 2011
ER -