Publication: A novel L-cysteine sensor using in-situ electropolymerization of L-cysteine: Potential to simple and selective detection
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Issued Date
2022
Resource Type
Language
eng
File Type
application/pdf
ISSN
399140
Rights Holder(s)
Scopus
Bibliographic Citation
Talanta. Vol 237, No. (2022)
Suggested Citation
Khamcharoen W., Henry C.S., Siangproh W. A novel L-cysteine sensor using in-situ electropolymerization of L-cysteine: Potential to simple and selective detection. Talanta. Vol 237, No. (2022). doi:10.1016/j.talanta.2021.122983 Retrieved from: https://hdl.handle.net/20.500.14740/10252
Author(s)
Abstract
This work presents an all-in-one origami paper-based electrochemical platform for simple and inexpensive L-cysteine (Cys) detection using Cys as a monomer for modifying electrode surfaces. The proposed method combines the steps of electropolymerization and detection into a single device to offer a highly convenient method for the end-user. In comparison, the sensitivity toward Cys detection is a significantly increased using this modified electrode. The developed device provided a linear concentration range of 10–800 μM with a limit of detection of 5.5 μM. For application, the device was successfully applied to detect Cys in different food products such as wheat flour, bread, and cake with satisfactory results, yielding excellent intra-day and inter-day relative standard deviations (1.5–4.9%) and recoveries (84.2–110.8%). This discovery is important from the viewpoint of the development of Cys detection in other applications in the future. © 2021