Papers – Page 628 – TechConnect Briefs

Silicon Dioxide Nanoparticles Exert Dissimilar Cytotoxic Effects on Mammalian Cell Types

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

Applications of nanomaterials (e.g., silicon dioxide (SiO2) nanoparticles) are ubiquitous. Thus, environmental and occupational exposure to these nanoparticles could pose potential health risk. SiO2 microparticles are toxic in animals in vivo and SiO2 nanoparticles are [...]

Cytotoxic Effects of Short Multi-wall Carbon Nanotubes

Agharkar V.A., Bhushan A., Lai J.C.K., Daniels C.K., Idaho State University, US

The applications of carbon nanotubes (CNTs), a novel and important class of nanomaterials, can change paradigms of various research areas. Although biomedical applications of CNTs are increasing, their putative cytotoxicity has not been substantially addressed. [...]

Disinfection of Cryptosporidium Parvum Oocysts in Water using Ultrasonic Treatment

Olvera M.E., Ilangovan K., Instituto Tecnologico y de Estudios Superiores de Monterrey, MX

Ultrasound in a liquid phase cause mass and heat transfer across the liquid through cavitational processes which act as nanoreactors to generate unstable mechanical equilibrium. The effect of 1 MHz ultrasound on the inactivation of [...]

Photocatalytic Activity Assessment of Some Transition Metal Doped

Popa M., Baia L., Baia M., Ghica C., Cosoveanu V., Baia L., Baia M., Danciu V., Babes-Bolyai University, RO

Titania based aerogels are nanoscopic pore-solid architectures with high surface area and a continuous mesoporous network fashioned from interconnected nano-quasicrystallites building blocks that make them attractive for various (photo)catalysis based applications [1]. Besides the role [...]

New nanostructured cellulose materials

Vismara E., Gastaldi G., Melone L., Cosentino C., Torri G., Politecnico di Milano, IT

Optimized synthesis of new cellulose-GMA materials via radical and physical chemical activation, their chemical composition determination and derivatization quantification. Structural solid state NMR and IR ATR characterizations. Derivative screenings for possible use in filtration of [...]

Nanofiltration of Electrolyte Solutions by Sub-2nm Carbon Nanotube Membranes

Fornasiero F., Park H.G., Holt J.K., Stadermann M., Kim S., In J.B., Grigoropoulos C.P., Noy A., Bakajin O., Lawrence Livermore National Laboratory, US

Both MD simulations and experimental studies have shown that liquid and gas flow through carbon nanotubes with nanometer size diameter is exceptionally fast. For applications in separation technology, selectivity is required together with fast flow. [...]

Environmental and Economic Assessment of Nano-Fabrication Processes of Memory Devices

Dahlben L., Isaacs J.A., Northeastern University, US

The unique mechanical, electronic, and non-volatility of carbon nanotubes (CNT) have significant potential to replace current silicon-based switches. However, before fully integrating CNT switches into the semiconductor industry, the production costs and environmental impacts associated [...]

Sensor for real-time monitoring of food degradation

Ibrisimovic N., Bauer M., Pittner F., University Vienna, AT

The aim of our novel approach was to create a simple and cheap sensor providing reasonable sensitivity and selectivity to indicate the “best use before” period combined with a memory effect that cannot easily be [...]

A Portable Raman Sensor for the Rapid Identification of the Olive Oil

Qi X., Zhang X., Zou M., Chen Y., Ye J., Chinese Academy of Inspection and Quarantine, CN

The adulteration of the olive oil with lower-priced oils and its distinction of different classifications are serious problems in the olive oil market, a fast on-site screening method is needed to be developed. In addition [...]

Exposure to nanoparticles collected in the Los Angeles basin in California leads to the up regulation to brain associated genes

Ljubimova J.Y., Kleinman M.T., Khazenzon N.M., Fujita M., Rudenkyy S., Ospital J., Wallerstein B., Meacher D., Gookin G., Salazar K., Black K.L., Cedars-Sinai Medical Center, US

Direct evidence regarding brain tumors as a result of exposure to specific chemical agents and particulate air pollutants is limited. We wanted to determine the size of nanoparticles from Los Angeles basin in California, coarse [...]