TY - JOUR
T1 - Hydrogen-selective microelectrodes based on silicon needles
AU - Zine, Nadia
AU - Bausells, Joan
AU - Ivorra, Antoni
AU - Aguiló, Jordi
AU - Zabala, Miguel
AU - Teixidor, Francesc
AU - Masalles, Carles
AU - Viñas, Clara
AU - Errachid, Abdelhamid
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2003/6/1
Y1 - 2003/6/1
N2 - The fabrication of hydrogen-selective microelectrodes on silicon needle-shaped substrates is described. The microelectrodes are based on an ion-selective poly(vinyl chloride) (PVC) membrane with an intrinsically conducting polymer (polypyrrole (PPy)) solid contact layer. The polypyrrole is prepared with the dopant anion cobaltbis(dicarbollide) [3,3′-Co(1,2-C2B9H11)2]- , which gives a high stability to the polymer layer. The performance of the resulting solid-contact ion-selective microelectrodes (SCISME) is investigated by using potentiometric measurement and electrochemical impedance spectrometry. The feasibility of the fabrication technology is demonstrated and the devices operate satisfactorily, with a response showing good sensitivity and selectivity against common interfering cations in background solutions. The SCISME has been developed for organ monitoring during cardiac surgery or during transportation for transplants.
AB - The fabrication of hydrogen-selective microelectrodes on silicon needle-shaped substrates is described. The microelectrodes are based on an ion-selective poly(vinyl chloride) (PVC) membrane with an intrinsically conducting polymer (polypyrrole (PPy)) solid contact layer. The polypyrrole is prepared with the dopant anion cobaltbis(dicarbollide) [3,3′-Co(1,2-C2B9H11)2]- , which gives a high stability to the polymer layer. The performance of the resulting solid-contact ion-selective microelectrodes (SCISME) is investigated by using potentiometric measurement and electrochemical impedance spectrometry. The feasibility of the fabrication technology is demonstrated and the devices operate satisfactorily, with a response showing good sensitivity and selectivity against common interfering cations in background solutions. The SCISME has been developed for organ monitoring during cardiac surgery or during transportation for transplants.
KW - Conducting organic polymer
KW - pH microelectrode
KW - Polypyrrole
KW - Silicon needle
KW - Solid-state ion-selective microelectrode
UR - http://www.scopus.com/inward/record.url?scp=12444289115&partnerID=8YFLogxK
U2 - 10.1016/S0925-4005(03)00069-8
DO - 10.1016/S0925-4005(03)00069-8
M3 - Article
AN - SCOPUS:12444289115
SN - 0925-4005
VL - 91
SP - 76
EP - 82
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
IS - 1-3
ER -