Ion-sensitive field effect transistors using carbon nanotubes as the transducing layer.
We report a new type of ion-sensitive field effect transistor (ISFET). This type of ISFET incorporates a new architecture, containing a network of single-walled carbon nanotubes (SWCNTs) as the transduction layer, making an external reference electrode unnecessary. To show an example of its application, the SWCNT-based ISFET is able to detect at least 10(-8) M of potassium in water using an ion-selective membrane containing valinomycin.
Cid
Cristina C
CC
Department of Analytical Chemistry and Organic Chemistry, Rovira i Virgili University, C/Marcel.lí Domingo s/n, 43007 Tarragona, Spain.
Riu
Jordi
J
Maroto
Alicia
A
Rius
F Xavier
FX