期刊
ELECTROANALYSIS
卷 21, 期 11, 页码 1237-1250出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.200804554
关键词
Aptamers; Aptasensors; Biosensors; Electrochemical detection; Review
This review presents electrochemical aptasensors reported in the literature. Their development has been growing as evidenced by the increasing number of scientific publications on this subject since 2004. Aptasensors are presented according to their transduction mode, including the most described amperometric and impedimetric devices as well as FETs and the first very recently reported potentiometric aptasensor. 'Signal-on' (positive readout signal) Mid less sensitive 'signal-off' (negative readout signal) aptasensors are reviewed based oil target hinding-induced conformational change of aptamers or on target binding-induced strand displacement or even oil both processes. Aptamer-labeled and aptamer label-free devices are presented separately.
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