%0 Journal Article %T Organic ISFET Based on Poly (3-hexylthiophene) %A Giuseppe Scarpa %A Anna-Lena Idzko %A Anandi Yadav %A Stefan Thalhammer %J Sensors %D 2010 %I MDPI AG %R 10.3390/s100302262 %X We have fabricated organic field-effect transistors (OFETs) with regioregular poly(3-hexylthiophene) (P3HT) operable at low-voltages in liquid solutions, suitable for in vitro biosensing applications. Measurements in electrolytes have shown that the performance of the transistors did not deteriorate and they can be directly used as ionsensitive transducers. Furthermore, more complex media have been tested, with the perspective of cell analysis. Degradation effects acting on the device operating in liquid could be partly compensated by adopting an alternate current measuring mode. %K organic ISFET %K P3HT %K biosensing %U http://www.mdpi.com/1424-8220/10/3/2262