In this study, optimization conditions for cyanide biodegradation by Klebsiella pneumoniae strain were determined to be 25 °C, pH=7 and 150 rpm at the concentration of 0.5 mM potassium cyanide in the medium. Additionally, it was found that K. pneumoniae strain is not only able to degrade potassium cyanide, but also to degrade potassium hexacyanoferrate(II) trihydrate and sodium ferrocyanide dec...

Abstract Among several types of redox flow batteries (RFBs) under development, non-aqueous (NRFBs) have the potential to approach energy density lithium-ion batteries, while maintaining advantages systems, including ability decouple power and ratings, thermal stability. Despite their promise, NRFBs suffer from low densities because solubility limitation species in solvents remains relatively lo...

Possible involvement of the plasma membrane bound redox system in the generation of the trans-root electrical potential difference (TRP) arising across 8 day old maize (Zea mays L. hybrid ZPSC704) roots was studied. Excised roots were exposed to artificial impermeable electron acceptors (potassium hexacyanoferrate III and potassium hexachloroiridate IV) in external solution, and TRP response, o...

Ultrasound-assisted micellar extraction of phenolic antioxidants from spices has been developed for the first time. The effect of the surfactant nature and its concentration on the extraction efficiency has been evaluated. Electrogenerated hexacyanoferrate(III) ions have been used as coulometric titrants owing to their selectivity towards phenolic antioxidants. The best recovery of phenolic ant...

Kinetics of ruthenium (III) catalysed oxidation of essential amino acid, arginine by hexacyanoferrate (III) has been carried out in aqueous alkaline medium at 35°C.The rate of the reaction shows first order dependence on hexacyanoferrate (III). The reaction rate is first order at low concentrations of amino acid and alkali both and tends towards zero order at higher concentrations of substrate ...

A potentiometric non-enzymatic sensor using off-chip extended-gate field effect transistor (EGFET) with a ferrocenyl-alkanethiol modified gold electrode is demonstrated for determining the uric acid concentration in human serum and urine. Hexacyanoferrate (II) and (III) ions are used as redox reagent. This potentiometric sensor measures the interface potential on the ferrocene immobilized gold ...