TY - GEN
T1 - Interdigitated array electrodes with magnetic function as a particle-based biosensor
AU - Peng, Zhengchun
AU - Hesketh, Peter J.
AU - Yang, Xiaoling
AU - Zhang, Guigen
PY - 2007
Y1 - 2007
N2 - A particle-based electrochemical biosensor was developed by integrating soft magnetic material, NiFe, with interdigitated array (IDA) electrodes. The NiFe strips were embedded beneath the IDA electrodes and acted as magnetic traps to collect the enzyme labeled paramagnetic particles from a microchannel flow of particle suspension. The IDA electrodes, which overlap on top of the NiFe strips, are designed to detect in close proximity the enzyme product that is produced from the particle surface. The sensors were fabricated in such a way that the particles were positioned among IDA electrodes without blocking the active electrode surface. The theoretical prediction of the sensor response is presented. It is expected that both sensitivity and limit of detection of the biosensor would be improved significantly.
AB - A particle-based electrochemical biosensor was developed by integrating soft magnetic material, NiFe, with interdigitated array (IDA) electrodes. The NiFe strips were embedded beneath the IDA electrodes and acted as magnetic traps to collect the enzyme labeled paramagnetic particles from a microchannel flow of particle suspension. The IDA electrodes, which overlap on top of the NiFe strips, are designed to detect in close proximity the enzyme product that is produced from the particle surface. The sensors were fabricated in such a way that the particles were positioned among IDA electrodes without blocking the active electrode surface. The theoretical prediction of the sensor response is presented. It is expected that both sensitivity and limit of detection of the biosensor would be improved significantly.
UR - http://www.scopus.com/inward/record.url?scp=48349143996&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=48349143996&partnerID=8YFLogxK
U2 - 10.1109/ICSENS.2007.4388597
DO - 10.1109/ICSENS.2007.4388597
M3 - Conference contribution
AN - SCOPUS:48349143996
SN - 1424412617
SN - 9781424412617
T3 - Proceedings of IEEE Sensors
SP - 1097
EP - 1100
BT - The 6th IEEE Conference on SENSORS, IEEE SENSORS 2007
T2 - 6th IEEE Conference on SENSORS, IEEE SENSORS 2007
Y2 - 28 October 2007 through 31 October 2007
ER -