Pandey, R.
, Alshahrani, H.
, Krylyuk, S.
, Williams, E.
, Davydov, A.
and Chusuei, C.
(2018),
Electrochemical Detection of Acetaminophen with Silicon Nanowires, Electroanalysis
(Accessed May 12, 2025)
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Electrochemical Detection of Acetaminophen with Silicon Nanowires
Published
Author(s)
Raja Ram Pandey, Hussain S. Alshahrani, , Elissa Williams, , Charles C. Chusuei
Abstract
Acetaminophen (APAP) is an antipyretic, analgesic agent. Overdose during medical treatment poses a risk for liver failure. Hence, it is important to develop methods to monitor APAP in the body to avoid APAP toxicity. Here, we report an efficient and selective electrochemical APAP sensor based on glassy carbon electrodes (GCE) modified with silicon nanowires (SiNWs). Electrocatalytic activity of the SiNW/GCE sensors was monitored under various pH conditions and concentrations of APAP using cyclic voltammetry (CV) and chronoamperometry (CA). CV of the SiNWs at 0.5 mM to 13 mM APAP concentrations was used to determine the oxidation and reduction potential of APAP. The selective detection of APAP was then demonstrated using CA at +0.568 V, APAP's determined oxidation potential using CV, in the 0.01 mM to 3 mM concentration range. The SiNW sensor has the ability to detect APAP well within the detection limits for APAP toxicity, showing promise as a practical biosensor.Citation
Electroanalysis
Volume
30
Pub Type
Journals
Keywords
cyclic voltammetry, chronoamperometry, silicon nanowires, acetaminophen, electrochemical sensor
Citation
Issues
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Created February 7, 2018, Updated October 12, 2021