Journal
DIAGNOSTICS
Volume 11, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/diagnostics11010104
Keywords
electrochemical; aptasensor; label-free; clinically important biomarkers
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This article reviews the diversity of electrochemical aptasensors for target analyte detection, covering strategies of aptamer immobilization, types of sensors, and applications for clinically important biomarkers.
This article reviews the progress of diversity of electrochemical aptasensor for target analytes detection. The immobilization strategies of aptamers on an electrode surface are addressed. The aptasensors are also introduced in compliance with the assay platforms. Many electrochemical aptasensors are nearly identical to conventional immunochemical approaches, sandwich and competition assays using electroactive signaling moieties. Others are signal-on and sign-off aptasensors credited to the target binding-induced conformational change of aptamers. Label-free aptasensors are also highlighted. Furthermore, the aptasensors applied for clinically important biomarkers are emphasized.
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