silicon dioxide – TechConnect Briefs

Far-infrared Radiation Properties of Poly(vinyl alcohol) Nanofibrous Membranes Containing Germanium and Silicon Dioxide

Chung J., Lee S., Yonsei University, KR

Far-infrared radiation effect and antibacterial properties were introduced in PVA nanofibrous membrane using germanium (Ge) and silicon dioxide (SiO2). Composite fibers containing Ge and SiO2 were fabricated at various concentrations of Ge and/or SiO2 using [...]

Silicon Dioxide Nanoparticles Can Exert Cytotoxic Effects on Neural Cells

Lai J.C.K., Lai M.B., Lai J.C.K., Lai M.B., Edgley K.L., Bhushan A., Dukhande V., Daniels C.K., Leung S.W., Idaho State University, US

The health risk and cytotoxic effects of nanoparticles are almost unknown. Consequently, we have launched an interdisciplinary research program to systematically investigate the toxicity of nanoparticles. An initial observation prompted us to hypothesize that SiO2 [...]

Cytotoxicity of Dental Nanocomposite Particles

Kostoryz E.L., Utter C.J., Wang Y., Dusevich V., Spencer P., University of Missouri-Kansas City, US

Safety assessment of dental composites is focused on the toxicity of leachable unreacted monomers. With the advent of nanostructured materials, safety assessment needs to include the potential toxicity of nanoparticles. The objective of this study [...]

Photoluminescence and Photoluminescence Excitation Measurements of Eu-Doped Nano-Si/SiO2 Thin Films

Nery G.A., Fonseca L.F., Liu H., Resto O., Weisz S.Z., University of Puerto Rico at Rio Piedras, PR

Europium (Eu) ions are already used in significant visual technological applications. We attempted to determine if a silicon nanoparticle (nano-Si) / Europium interaction could occur. The energy transfer from nano-Si to rare earth ions has [...]

A Study on Growth of Ultrathin Silicon Dioxide Films by Rapid Thermal Oxidation

Zeng T., Doumanidis H.C., North Carolina State University, US

Silicon dioxide thin films are the basic components for microelectronics and other micro technologies. As the size of the transistors and relevant micro devices shrinks for faster and smaller chips and other microsystems, growth of [...]