Though there are a variety of microfabrication techniques, one that can fabricate three-dimensional metal structure by simple procedure is rarely seen. Given this fact, we suggest a new method for threedimensional microfabrication that is characterized by photocatalytic deposition. The setup for this method consists of a wavelength 405nm laser diode, a numerical aperture 0.9 objective lens, and...

the effect of ethanol-water media on the synthesis of ag/tio2 nanocomposite was investigated with 0.05, 0.1 and 0.5 (wt.%) of ag content. ethanol was used as hole-scavenger enhancing the photodecomposition of ag+ ions under illumination of near-uv light. the nanocomposites were further calcined to 300˚c and 400˚c under controlled atmosphere. the synthesized nanocomposites were tested for photoc...

in this study, silver nanoparticles were synthesized by chemical reduction method at different concentrations of ag colloid in the range of 500-16000 ppm. nanoparticles were deposited by spin coating method on pre-etched glass and si substrates. structural, optical and electrical properties of the samples were studied using scanning electron microscopy equipped with edax, uv-vis spectrophotomet...

In this study antimicrobial activity of ZnO nanoparticles and TiO2 nanoparticles on the most common pathogen bacterium Pseudomonas aeruginosa was evaluated. P. aeruginosa is one of the prevalent pathogen that caused nosocomial infection. It is generally multi-drug resistant. Pseudomonas aeruginosa (ATCC 27853) were cultured on nutrient agar medium (NA) for 24h at 37°C. TiO2 and ZnO nanoparticle...

0167-9317/$ see front matter 2012 Elsevier B.V. A http://dx.doi.org/10.1016/j.mee.2012.11.009 ⇑ Corresponding authors. Tel.: +1 412 648 8989. E-mail addresses: [email protected] (M. Yun), We report the fabrication of resistive random access memory (ReRAM) on both Si and PET flexible substrates using TiO2 as the dielectric spacer between Ag electrodes. Ag/TiO2/Ag ReRAM shows unipolar switching...

Titanium dioxide (TiO2) nanoparticles are currently the second most produced engineered nanomaterial in the world with vast usage in consumer products leading to recurrent human exposure. Animal studies indicate significant nanoparticle accumulation in the brain while cellular toxicity studies demonstrate negative effects on neuronal cell viability and function. However, the toxicological effec...

A simple, robust and versatile hydrothermal synthesis route to in situ functionalized TiO2 nanoparticles was developed using titanium(IV) isopropoxide as Ti-precursor and selected silane coupling agents (3-aminopropyltriethoxysilane (APTES), 3-(2-aminoethylamino)propyldimethoxymethylsilane (AEAPS), and n-decyltriethoxysilane (DTES)). Spherical nanoparticles (ca. 9 nm) with narrow size distribut...

The present work investigates the size dependent reflective properties of TiO2 nanoparticles and discusses the development of reflectors. The nanocrystalline TiO2 powders with different crystallinity and phase structures were obtained by controlling the reaction parameters. TiO2 nanoparticles synthesized via sol-gel method were characterized by using X-ray diffraction (XRD), transmission electr...

tio 2 nanoparticles (nps) might be considered as the most important photosensitizer due to high photocatalytic and sonocatalytic efficiency, low toxicity, excellent biocompatibility, low cost and high chemical stability. tio 2 -nps normally tend to aggregate in physiological medium and which results to decreased cell viability and inducing expression of stress-related genes. thus dispersion and...