title: Green synthesized nickel nanoparticles modified electrode in ionic liquid medium and its application towards determination of biomolecules.
abstract: An air and moisture stable ionic liquid 1-ethyl-3-methylimidazolium ethyl sulfate (EMIMES) was used as an electrolyte for electropolymerization of L-cysteine followed by electrodeposition of nickel nanoparticles (NiNP) on paraffin wax impregnated graphite electrode (PIGE). The electrodeposited NiNP modified electrode showed good redox activity and stability in 0.1M KOH solution. The modified electrode has been characterized using Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDS), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The modified electrode was examined for electrocatalytic oxidation of some compounds of biological and clinical importance such as vitamin B6, L-tyrosine, L-tryptophan, vanillin, glucose and hydrogen peroxide by cyclic voltammetry to demonstrate the electrocatalytic activity of the electrodeposited NiNPs.
authors.affiliation: Department of Analytical Chemistry, School of Chemical Sciences, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India.
authors.forename: Rajendran Suresh
authors.initials: RS
authors.lastname: Babu
authors.forename: Pandurangan
authors.initials: P
authors.lastname: Prabhu
authors.forename: Sangilimuthu Sriman
authors.initials: SS
authors.lastname: Narayanan
mesh_terms: D004566:Electrodes; D052578:Ionic Liquids; D053768:Metal Nanoparticles; D009532:Nickel / Q000737:chemistry*; D013057:Spectrum Analysis / Q000379:methods
chemical_list: D052578:Ionic Liquids; D009532:Nickel