In situ synthesis of copper-ruthenium bimetallic nanoparticles on laser-induced graphene as a peroxidase mimic.
Dinakaran ThirumalaiJun-Uk LeeHyojeong ChoiMinjeong KimJaewon LeeSuhkmann KimBo-Sung ShinSeung-Cheol ChangPublished in: Chemical communications (Cambridge, England) (2021)
A new type of disposable flexible sensor for hydrogen peroxide (H2O2) detection was developed by in situ synthesis of copper-ruthenium bimetallic nanoparticles on a laser-induced graphene surface (Cu-Ru/LIG). The approach produced Cu-Ru/LIG via a solid phase transfer mechanism which loaded the metal precursor onto LIG, followed by laser scribing without demanding chemical vapor deposition or solution-based reactions. Cu-Ru/LIG showed a high electrocatalytic response toward H2O2 reduction at -0.4 V vs. Ag/AgCl. The sensor also showed good selectivity and reproducibility. This method provides an alternative route to easily synthesize various catalysts on conductive substrates for sensor applications.
Keyphrases
- hydrogen peroxide
- metal organic framework
- walled carbon nanotubes
- nitric oxide
- energy transfer
- aqueous solution
- highly efficient
- drug delivery
- reduced graphene oxide
- quantum dots
- carbon nanotubes
- oxide nanoparticles
- loop mediated isothermal amplification
- solid state
- gold nanoparticles
- cancer therapy
- electron transfer