Electrochemical pH modulator coupled with Ni-based electrode for glucose sensing.

The non-enzymatic electrochemical detection of glucose by direct oxidation using electrodes modified with suitable electrocatalysts is now well-established. However, it most often requires highly alkaline media, limiting dramatically the use of such electrodes at neutral pH. This is notably the case of Ni-based electrodes.

Local electrochemical sample acidification for the detection of Pb traces.

Electrochemical detection of pollutants ( heavy metals) in real samples often requires the adjustment of pH to allow optimal sensitivity. Such sample pretreatment can be challenging for on-site applications as it implies the use of valves, pumps and storage of base or acid solutions. We report here the use of an electrochemical approach for the control of water sample pH.

Molecularly imprinted polymer as a synthetic receptor mimic for capacitive impedimetric selective recognition of Escherichia coli K-12.

We fabricated an electrochemical molecularly imprinted polymer (MIP) chemosensor for rapid identification and quantification of E. coli strain using 2-aminophenyl boronic acid as the functional monomer. This strain is a modified Gram-negative strain of Escherichia coli bacterium, an ordinary human gut component.

Multiwalled Carbon Nanotubes-CeO Nanorods: A "Nanonetwork" Modified Electrode for Detecting Trace Rifampicin.

Herein, a "nanonetwork" modified electrode was fabricated based on multiwalled carbon nanotubes and CeO nanorods. Scanning electron microscopy, X-ray powder diffraction and zeta potential were employed to characterize this electrode. Multiwalled carbon nanotubes negatively charged and CeO nanorods positively charged form "nanonetwork" via electrostatic interaction.