TY - GEN
T1 - A Label-Free Impedimetric Immunosensor Based on Humidity Sensing Properties of Barium Strontium Titanate
AU - Rasouli, Mahdi
AU - Tan, O. K.
AU - Sun, L. L.
AU - Mao, B. W.
AU - Gan, L. H.
PY - 2009
Y1 - 2009
N2 - A novel signal amplification mechanism for impedimetric biosensors is proposed. The proposed mechanism is based on humidity sensing properties of BST composite film and eliminates the need for application of bioactive labels for signal enhancement in amplified impedimetric biosensors. It suggests a good alternative to conventional impedimetric biosensors by improving the detection limit without adding any extra complexity to the system. It is direct and label-free, and can be employed for detection of a wide range of analytes. The sensing capability of the system was exemplified for detection of anti-BSA protein and a low detection limit of 10 ng/ml was obtained.
AB - A novel signal amplification mechanism for impedimetric biosensors is proposed. The proposed mechanism is based on humidity sensing properties of BST composite film and eliminates the need for application of bioactive labels for signal enhancement in amplified impedimetric biosensors. It suggests a good alternative to conventional impedimetric biosensors by improving the detection limit without adding any extra complexity to the system. It is direct and label-free, and can be employed for detection of a wide range of analytes. The sensing capability of the system was exemplified for detection of anti-BSA protein and a low detection limit of 10 ng/ml was obtained.
KW - Barium Strontium Titanate
KW - Electrochemical Sensor
KW - Impedance Spectroscopy
KW - Impedimetric Immunosensor
KW - Surface Modification
UR - http://www.scopus.com/inward/record.url?scp=84891951718&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84891951718&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-92841-6_212
DO - 10.1007/978-3-540-92841-6_212
M3 - Conference contribution
AN - SCOPUS:84891951718
SN - 9783540928409
T3 - IFMBE Proceedings
SP - 863
EP - 866
BT - 13th International Conference on Biomedical Engineering - ICBME 2008
T2 - 13th International Conference on Biomedical Engineering, ICBME 2008
Y2 - 3 December 2008 through 6 December 2008
ER -