Abstract
ABSTRACT Introduction: Several athletes use steroids such as nandrolone aiming at muscle hypertrophy and performance gain. The current research focused on developing a GO-TiO2 nanostructure as an electrochemical sensor for detecting Nandrolone (ND) like doping agents. Objective: Develop a graphene oxide and carbon paste-modified TiO2 nanocomposite electrode (TiO2-GO/CPE) as an electrochemical biosensor for the detection of anabolic steroids in the urine of athletes. Methods: The hydrothermal approach was employed to make GO-TiO2 nanocomposites, while the modified Hummers approach was used to make GO nanofilaments. Results: The interaction of TiO2 nanostructures with GOES resulted in the anchoring of TiO2 nanoparticles on the surface of GO nanowires, as demonstrated by structural investigations of the generated nanocomposite using SEM. The DPV approach was used to investigate the electrochemical properties of an anabolic steroid sensor, which revealed a stable and selective response to anabolic steroids and superior performance to previously reported anabolic steroid sensors. Conclusion: RSD values ranged from 3.20% to 4.45%, indicating that the developed electrochemical anabolic steroid sensor can be used as a viable detection technique to identify anabolic steroids in human biological fluids. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.
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