Forensic electrochemical sensor for fentanyl and morphine detection using an Au-NiO _<i>x</i> -electrodeposited carbon electrode.

ABSTRACT: The overuse and abuse of narcotics, such as fentanyl and morphine, has resulted in serious threats to human health. Although current detection methods are generally effective, they rely on specialized laboratory equipment. Herein, a forensic electrochemical sensor was developed for the on-site detection of trace quantities of fentanyl and morphine. A screen-printed carbon electrode (SPCE) was modified via the electrodeposition of Au and nickel oxide (NiO _x ) to enhance its electrochemical activity. Au electrodeposition was performed using a multi-potential step method that alternated between deposition and resting potentials (-0.2 and 0.7 V, respectively) with pulse durations of 1 s and 500 ms, respectively. Subsequently, NiO _x deposited onto the

SUBMITTER: Kim EJ 

PROVIDER: S-EPMC12035603 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature