Electrochemical Aptamer-Based Biosensors
A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Biosensors".
Deadline for manuscript submissions: closed (20 May 2023) | Viewed by 27906
Special Issue Editors
Interests: electrochemical biosensors; redox-active layers; medical diagnostics; analytical chemistry
Special Issues, Collections and Topics in MDPI journals
Interests: electrochemical biosensors; redox-active layers; medical diagnostics; analytical chemistry
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Since the development of the first electrochemical biosensors for glucose detection in 1962 by Clark and Lyons, electrochemical biosensor technology has become one of most extensively studied disciplines in chemistry. Electrochemical biosensors are powerful analytical tools generally providing multiplex analysis, fast response, sensitivity, and specificity at low cost. New possibilities have opened up for electrochemical biosensors since 1990, with the discovery of “aptamers”—new artificial biological receptors with unique properties. Aptamers are short single-stranded DNA or RNA oligonucleotides that are isolated, in vitro, from a synthetic oligonucleotide library using the automated technique SELEX. Aptamers are able to bind their target with high affinity (ranging from nano- to picomolar level) and specificity. The analytes cover a wide range, from small molecules and proteins to complex structures like whole cells and viruses. Aptamers are characterized by numerous relevant properties suitable for electroanalytical applications, as follows: (1) highly efficient and reproducible chemical synthesis, (2) high-affinity binding capacity, (3) thermal and conformational stability, (4) easily controlled chemical modification, (5) a highly flexible structure, and (6) low cross-reactivity. Electrochemical aptasensors can be applied in several areas such as health (clinical diagnostic and therapeutic purposes), the food industry, and environmental monitoring.
We welcome submissions that expand the exciting filed of electrochemical aptamer-based biosensors by describing new developments in biosensors and their applications. We look forward to your participation in this Special Issue.
Dr. Iwona Grabowska
Dr. Katarzyna Kurzątkowska
Guest Editors
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Keywords
- aptamers
- electrochemical aptasensors
- aptasensor design
- clinical diagnostics
- food analysis
- environmental analysis
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