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A novel photochemical synthesis of size-controlled gold nanoparticles was reliably accomplished via both a direct reduction and a seeded-growth method at room temperature under the irradiation of fluorescent light. These methods utilized the intensity of fluorescent light that closely resembles daily sunlight (∼100 mW cm(-2)). This effectively allowed for… (More)
The effectiveness of MSA charcoal tubes and those constructed by the USAF Environmental Health Laboratory were statistically compared. No significant differences were noted. Also, tube recovery efficiencies were determined for 10 different solvents for which there was no or limited data. The effects of moisture on gravimetric analysis are presented.
The preparation of biocompatible N-isopropylacrylamide-co-acrylic acid polymer on sacrificial silica (SiO2) nanoparticles is reliably carried out using conventional free radical polymerization. Subsequent removal of the SiO2 core with diluted hydrofluoric acid leads to the formation of uniform hollow polymer structures containing COOH functional groups. The… (More)