Deep Eutectic Solvent-Assisted Synthesis of Ni-Graphene Composite Supported on Screen-Printed Electrodes for Biogenic Amine Detection.

ABSTRACT: Deep eutectic solvents (DES) have emerged as versatile, sustainable media for the synthesis of nanomaterials due to their low toxicity, tunability, and biocompatibility. This study develops a one-step method to modify commercially available screen-printed electrodes (SPE) using laser-induced pyrolysis of DES, consisting of choline chloride and tartaric acid with dissolved nickel acetate and dispersed graphene. The electrodes were patterned using a 532 nm continuous-wave laser for the in situ formation of Ni nanoparticles decorated on graphene sheets directly on the SPE surface (Ni-G/SPE). The synthesis parameters, specifically laser power and graphene concentration, were optimized using the Nelder-Mead method to produce modified Ni-G/SPEs with maximized electrochemical response to dopamine

SUBMITTER: Levshakova A 

PROVIDER: S-EPMC11766956 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature