Bioinspired superwettable electrodes towards electrochemical biosensing

Abstract

The recent progress of superhydrophilic/phobic electrodes, superaerophilic/phobic electrodes, superwettable patterned electrodes, Janus wettability electrodes and wettability switchable electrodes in electrochemical biosensing is reviewed.

Large-Area and Rapid Fabrication of a Microlens Array on a Flexible Substrate for an Integral Imaging 3D Display

“…The higher hydrophilicity of the modified CYTOP surface can be explained by introducing the Wenzel model, where the droplets wet the total surface area. This model describes the contacts angles on nanostructured surfaces according to the following equation , cos nobreak0em.25em⁡ θ * = r 0.25em cos nobreak0em.25em⁡ θ where θ* is the apparent contact angle, r is the roughness ratio, and θ is the Young contact angle on an ideal surface.…”

Stimuli-responsive polymers for interface engineering toward enhanced electrochemical analysis of neurochemicals

“…In electrochemical sensors based on electron transport, the electrochemical reaction occurring at the inner Helmholtz layer is generally accompanied by mass transport (reactant and product) and interfacial electron conduction. 77–79 For a reversible reaction, the enrichment of reactants can promote the forward reaction to accelerate the thermodynamics of the reaction process. Switching the wettability of electrodes by tailoring the surface structure can realize reactant enrichment, which will improve the electrochemical sensitivity.…”

Microfluidic devices for photo-and spectroelectrochemical applications

“…This can be overcome by allocating electrodes and contact pads on both sides of the substrate and connect them by vias, and by 3D integration of multiple substrates. Antifouling coatings (for life-sciences and medical applications) and coatings modifying wettability of microfluidic channels often challenge the optimal performance requiring additional development [36]. Over time, electrodes may also deteriorate leading to changes in material and EC active area.…”