Superoxide Scavenging by Natural Antioxidants studied using Cyclic Voltammetry

Cyclic Voltammetry

Study of Ferricyanide by Cyclic Voltammetry Using the CV-50W

couple is used as an example of an electrochemically reversible redox system in order to introduce some of the basic concepts of cyclic voltammetry (1,2). The CV-50W is ideal for teaching purposes. The instrument is simple to use, and its Windows-based software can be quickly mastered by students with little or no background in electrochemistry. The experiment outlined below demonstrates the de...

Cyclic Voltammetry of Auranofin

The oxidative behavior of Auranofin, 2,3,4,6-tetra-O-acetyl-1-thio-beta-D-glucopyranosato- S(triethylphosphine)gold(I), was investigated by using cyclic voltammetry (CV) in 0.1 M Bu(4)NPF(6)/CH(2)Cl(2) and 0.1 M Bu(4)NPF(4)/CH(2)Cl(2) solutions using Pt working and auxiliary electrodes and a Ag/AgCI reference. CV studies at scan rates from 50-2,000 mV/s and Auranofin concentrations between 1 an...

Total phenolic contents, radical scavenging and cyclic voltammetry of seaweeds from Brittany

The role of polyphenols as antioxidants in our daily nutrition has been extensively investigated, but information on composition of tannins from marine sources on nutrient utilisation is limited. This study will be focused on the determination of the polyphenol quantities in brown seaweeds from Brittany coast in France; the extracts were delivered from algae centre for valorisation (CEVA), and ...

Reactions of complex metalloproteins studied by protein-film voltammetry

The following review explores applications of voltammetric methods for observing reactions of complex metalloproteins. Attention is focused upon the technique of ‘protein-film voltammetry’, in which the protein molecules under investigation are adsorbed on the electrode surface and electrochemically ‘interrogated.’ The experiments address a minuscule sample with high sensitivity, and optimal co...