Back to Search
Start Over
A one-step electrochemical sensor for rapid detection of potassium ion based on structure-switching aptamer.
- Source :
-
Sensors & Actuators B: Chemical . Nov2013, Vol. 188, p1155-1157. 3p. - Publication Year :
- 2013
-
Abstract
- Abstract: A one-step electrochemical sensor for sensing of potassium ion (K+) based on the conformational change of a single stranded DNA (ssDNA) with G-rich sequence was presented. The introduction of K+ induced folding of the aptamer, and the Fc moiety approached the electrode surface to produce measurable electrochemical signals. The aptasensor had a lower detection limit at 0.1nM, which was an excellent sensitivity compared with other methods for K+ detection. The proposed approach showed high selectivity and minimized the nonspecific adsorption, so that it was used for the detection of target K+ in the human serum sample. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 09254005
- Volume :
- 188
- Database :
- Academic Search Index
- Journal :
- Sensors & Actuators B: Chemical
- Publication Type :
- Academic Journal
- Accession number :
- 90635652
- Full Text :
- https://doi.org/10.1016/j.snb.2013.08.039