Hybrid coating on steel: ZnNi electrodeposition and surface modification with organothiols and diazonium salts

Voltammetric Immunoassay for the Detection of Protein Biomarkers

“…The electrode was cycled voltammetrically in 0.5 M H 2 SO 4 in the range −0.3 V to +1.5 V vs. Ag/AgCl (3 M NaCl) at 0.1 V s −1 , until a stable current was observed (typically 10 min). Aniline‐modification of the electrode surface was achieved through electrochemical reduction of 2 mM FRGG in 0.1 M TBAP‐MeCN during 4‐reduction‐oxidation cycles (Figure S‐1 in Supporting Information) to yield a nitrobenzene‐modified electrode 49. A deposition of monolayer was assumed after the first cycle and accumulated to a possible multilayer during the second scan 48.…”

“…47, using diazonium salt electro‐reduction to build a bioelectroanalytical platform surface employing covalently‐bound ferrocene‐labelled antibodies 36, which are attached under mild conditions. This approach is versatile since it may be applied to any electrode surface 48,49, whilst maintaining a robust “wiring” of the antibody to the electrode surface 50, providing a means of rapid immunoassay. The approach is validated through rigorous testing of the system, as well as through ex vivo studies on cardiac tissue samples which allow for the potential of analysis of biomarkers on microfluidic chip systems 51.…”

EIS study of the redox reaction of at glassy carbon electrode via diazonium reduction in aqueous and acetonitrile solutions

“…Recently, some authors have reported the modification of glassy carbon surfaces by means of electrochemical methods using 4-phenylacetic acid diazonium salt to produce stable and reproducible enzymatic films [13] and also for the selective determination of DA cation in the presence of ascorbate at physiological pH [9]. The electrochemically assisted method has been used to attach modifiers to carbon materials ranging from glassy carbon (GC) and highly ordered pyrolytic graphite (HOPG) [1,14] to carbon fibers [15], felt [17] and powder [18] to screen-printed carbon films [19,20] and pyrolyzed photoresist films (PPFs) [21][22][23] and common metals such as steel [24], zinc [25,26], etc. At least five factors come out to significantly influence the structure of films formed on carbon substrates by electroreduction of aryl diazoniums.…”

Influence of modification time and high frequency ultrasound irradiation on self-assembling of alkylphosphonic acids on stainless steel: Electrochemical and spectroscopic studies

“…SAMs can provide metal surfaces with various properties. Indeed, their compact ordered structure can make them efficient barriers against corrosion [1][2][3]. Their chemical functionalization can be tuned as to offer wanted chemical reactivity [4][5][6].…”