Cysteamine core polyamidoamine G-4 dendron branched with β-cyclodextrins was chemisorbed on the surface of Au electrodes and further coated with Pt nanoparticles. Adamantane-modified glucose oxidase was subsequently immobilized on the nanostructured electrode surface by supramolecular association. This enzyme electrode was used to construct a reagentless amperometric biosensor for glucose, making use of the electrochemical oxidation of H2O2 generated in the enzyme reaction. The amperometric response of the biosensor was rapid (6 s) and a linear function of glucose concentration between 5 and 705 μmol L(-1). The biosensor had a low detection limit of 2.0 μmol L(-1), sensitivity of 197 mA mol(-1) L cm(-2), and retained 94% of its initial response after storage for nine days at 4 °C.
In
the present research, an electro-oxidation method was applied
to decrease the organic compounds and remove the available micro-organisms
in activated sludge of the sewage. Within this method, low cost electrodes
were used, including stainless steel, graphite, and Pb/PbO2, and the operating parameters (pH, current density, and operating
time) were experimentally optimized. In order to determine sludge
stabilization (removal of organic matters and microorganisms), the
decrease of parameters like chemical oxygen demand, the increase of
electroconductivity and the total dissolved solids, total coli form,
and fecal coli form were investigated. Two machine learning techniques
(artificial neural networks and support vector machines) were applied
comparatively for prediction of the process efficiency. Accurate results
were obtained by simulation, in agreement with experimental data.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.