Photoelectrochemical Reduction of Carbon Dioxide on Quantum-Dot-Modified Electrodes by Electric Field Directed Layer-by-Layer Assembly Methodology.

The photoelectrocatalytic reduction of CO2 on ITO-modified electrodes, with electrostatic assemblies (polycations/quantum dots) (polycations=poly diallyldimethylammonium, PDDA, and poly(2-trimethylammonium)ethyl methacrylate, PMAEMA)), is described in the present work. Nanoparticles of CdTe (5.6 nm) were incorporated through an electric field directed layer-by-layer assembly method on ITO electrodes.

The visual stresses of the aerospace environment.

The aviator or astronaut is subject to alterations of the environment which may seriously affect his performance or survivability. In a series of experiments, the stresses of hypoxia, vibration, high and low gravity, heat and noise were investigated to determine their effects upon visual function. With the possible exceptions of the latter two, all were found to produce measurable decrements in performance even at moderate levels; however, it is most remarkable that significant capability remains even in rather severe stress.