A one-step maskless oxygen plasma etching process is investigated to nanopattern conjugated polymer dodecylbenzenesulfonate doped polypyrrole (PPy(DBS)) and to examine the effects of nanostructures on the inherent tunable wettability of the surface and the droplet mobility. Etching characteristics such as the geometry and dimensions of the nanostructures are systematically examined for the etch...

A metal-assisted chemical etching process employing p-type silicon wafers with varied durations is used to produce nanowires. Silver nanoparticles prepared by deposition are utilized as a catalyst in the formation of Images from field emission scanning electron microscopy confirmed that diameter SiNWs grows when duration increased. The photoelectrochemical cell's characteristics were investigat...

Purpose: The goal of the study is to research the effect of various time of ageing on corrosion resistance, hardness and structures of Remanium 2000+ Co-Cr-Mo alloys used in prosthodontia. Design/methodology/approach: To investigation was prepared mould, cast in 1430°C and realized the heat treatment: solutioning in 1250°C by 3 hours and then ageing in 850°C by 4, 8, 16 and 24 hours. Electroche...

Bacterial adhesion to stainless steel 316L (SS316L), which is an alloy typically used in many medical devices and food processing equipment, can cause serious infections along with substantial healthcare costs. This work demonstrates that nanotextured SS316L surfaces produced by electrochemical etching effectively inhibit bacterial adhesion of both Gram-negative Escherichia coli and Gram-positi...

A clean and defect-free substrate/coating interface is required to guarantee good adhesion of coatings under service conditions. For this purpose, an etching pre-treatment using High-Power Impulse Magnetron Sputtering (HiPIMS) was performed modify the surface 304L stainless steel. The effect three procedures on substrate properties, such as corrosion resistance adhesion, investigated with unpre...

We describe recent experiments aimed at using carbon nanofibers for biosensing applications. Vertically aligned carbon nanofibers are grown on molybdenum electrodes to provide electrical contact to the nanofibers. Upon exposure to electrolyte solutions, we find that short nanofibers of <1 Am length can be wet and dried without significant mechanical disruption. However, longer fibers are prone ...

Field Ion Microscopy (FIM) and Scanning Tunneling Microscopy (STM) have found a wide application in nanotechnology. These microscopes use a metallic nanotip for image acquisition. Resolution of FIM and STM images depends largely on the radius of nanotip apex; the smaller the radius the higher the resolution. In this research, for tungsten nanotip fabrication, electrochemical etching of tungsten...

Gradient surfaces are emerging tools for investigating mammalian cell-surface interactions in high throughput. We demonstrate the electrochemical fabrication of an orthogonal gradient platform combining a porous silicon (pSi) pore size gradient with an orthogonal gradient of peptide ligand density. pSi gradients were fabricated via the anodic etching of a silicon wafer with pore sizes ranging f...