Electrochemical Determination of Pyrogallol at Conducting Poly(3,4‐ethylenedioxythiophene) Film‐Modified Screen‐Printed Carbon Electrodes

Abstract

We report a simple and environment friendly method to fabricate superhydrophobic metallic mesh surfaces for oil/water separation. The obtained mesh surface exhibits superhydrophobicity and superoleophilicity after it was dried in an oven at 200 °C for 10 min. A rough silver layer is formed on the mesh surface after immersion, and the spontaneous adsorption of airborne carbon contaminants on the silver surface lower the surface free energy of the mesh. No low‐surface‐energy reagents and/or volatile organic solvents are used. In addition, we demonstrate that by using the mesh box, oils can be separated and collected from the surface of water repeatedly, and that high separation efficiencies of larger than 92 % are retained for various oils. Moreover, the superhydrophobic mesh also possesses excellent corrosion resistance and thermal stability. Hence, these superhydrophobic meshes might be good candidates for the practical separation of oil from the surface of water.

One-step electrochemical deposition of antifouling polymers with pyrogallol for biosensing applications

“…It has been demonstrated that electrodeposition of polyphenolic molecules on the surface of conductive materials induces the formation of a conformal coating without aggregates of reacted monomers in the bulk of the solution. 18–22…”

“…It has been demonstrated that electrodeposition of polyphenolic molecules on the surface of conductive materials induces the formation of a conformal coating without aggregates of reacted monomers in the bulk of the solution. [18][19][20][21][22] The aim of this study was to fabricate a biosensing platform with antifouling ability using one-step electrodeposition of an antifouling polymer. A model binding system, avidin/biotin, was used to demonstrate the feasibility of the platform.…”

Electrochemical Behavior and Redox-Dependent Disassembly of Gallic Acid/FeIII Metal–Phenolic Networks

“…16 In general, ortho-dihydroxybenzenes (i.e., catechol) are known to be redox active in both their pristine (i.e., non-coordinated form) and coordinated forms in discrete metal complexes. [17][18][19] Thus, it can be expected that the coordinated structures of MPNs will respond to electrochemical stimuli and that such responses will add to our current understanding of the nature of the coordination networks. In particular, the electrochemical analysis of MPN systems may provide details on specific characteristics such as redox activity and reversibility, the oxidation states of the redox-active species, and specific conditions required for controlled disassembly.…”

“…To date, MPNs have shown potential applications in various fields, such as catalysis, separations, bioimaging, and drug delivery. ,− Although progress has been made in understanding the assembly, structure, and physicochemical properties of MPN films, ,,, the electrochemical nature of MPNs, such as the reduction and oxidation behavior, has received scant attention . In general, ortho -dihydroxybenzenes (i.e., catechols) are known to be redox active in both their pristine (i.e., the non-coordinated form) and coordinated forms in discrete metal complexes. − Thus, it can be expected that the coordinated structures of MPNs will respond to electrochemical stimuli and that such responses will add to our current understanding of the nature of the coordination networks. In particular, the electrochemical analysis of MPN systems may provide details on specific characteristics such as redox activity and reversibility, the oxidation states of the redox-active species, and specific conditions required for controlled disassembly.…”

Screen-Printed Fabrication of PEDOT:PSS/Silver Nanowire Composite Films for Transparent Heaters

“…The screen printing is an environment-friendly and cost-effective method to fabricate uniform films. It is one of the scalable production technologies [ 25 , 26 , 27 ]. In this study, a composite film has combined PEDOT:PSS with Ag NWs using a screen-printed fabrication to gain a uniform film with good conductivity.…”