A cheap and portable electrochemical immunosensor based on the silver-enhanced colloidal gold electrochemical stripping technique and gold nanoclusters (AuNCs) labels was proposed for the detection of human IgG. Inspired by adhesive proteins that secreted by marine mussels, the stable and robust film-poly (dopamine) was used to immobilize biomolecules (Ab1) on an indium tin oxide (ITO) electrod...

The colorimetric identification of pathogenic and non-pathogenic bacteria in cell culture is commonly performed using the redox mediator N,N,N0,N0-tetramethyl-para-phenylene-diamine (TMPD) in the socalled oxidase test, which indicates the presence of bacterial cytochrome c oxidases. The presented study demonstrates the ability of electrochemistry to employ TMPD to detect bacteria and quantify t...

In this study silicon-multi walled carbon nanotube (Si-MWCNT) lithium ion battery anodes were produced and their electrochemical galvanostatic charge/discharge tests were conducted at various (25 ◦C, 35 ◦C, 50 ◦C) temperatures to determine the cyclic behaviors of anode at di erent temperatures. Anodes were produced via vacuum ltration and DC magnetron sputtering technique. Silicon was sputtered...

We show a photolithography technique that permits gold nanowire array electrodes to be routinely fabricated at reasonable cost. Nanowire electrode arrays offer the potential for enhancements in electroanalysis such as increased signal-to-noise ratio and increased sensitivity while also allowing quantitative detection at much lower concentrations. We explore application of nanowire array electro...

Platinum (Pt) is the common catalyst used in a direct methanol fuel cell (DMFC). However, Pt can lead towards catalyst poisoning by carbonaceous species, thus reduces the performance of DMFC. Thus, this study focuses on the fabrication of a new composite TiO2 carbon nanofiber anodic catalyst support for direct methanol fuel cells (DMFCs) via electrospinning technique. The distance between the t...

Electrochemical biosensors have superior properties over other existing measurement systems because they can provide rapid, simple and low-cost on-field determination of many biological active species and a number of dangerous pollutants. In our work, we suggested a new heavy metal biosensor based on interaction of heavy metal ions (Cd and Zn) with phytochelatin, which was adsorbed on the surfa...

BACKGROUND Reactive oxygen species and redox signaling play an important role in the regulation of many vital biological processes. However, they are also tightly connected with many pathological conditions. The detection and evaluation of these signaling events are very often accompanied with great difficulties. In this article, we describe the development of a novel electrochemically-based te...

facing the world today is the contamination of the environment by inorganic, organic, and organometallic species. One area of particular interest is the detection of heavy metals and metalloids in environmental matrices and the elucidation of their pathways through various environmental compartments (1–4). Ultimately, these toxic metals are incorporated into drinking water and various food chai...

the present work describes a selective, rapid and sensitive method for the determination of cobalt using the adsorptive differential pulse voltammetry technique. the method is based on the accumulation of co(ii) complex with 2-aminocyclopentene-1-dithiocarboxylic acid on a hanging mercury drop electrode, followed by measurement of the current of the adsorbed complex. the effects of experimental...

a modified electrode was prepared by modification of the carbon paste electrode (cpe) with graphene nano-sheets. the fabricated modified electrode exhibited an electrocatalytic activity toward gallic acid (ga) oxidation because of good conductivity, low electron transfer resistance and catalytic effect. the graphene modified cpe had a lower overvoltage and enhanced electrical current respect to...