Energy & Sustainability – Page 187

Nanomaterials down the drain: perception and reality

The fate of nanoparticles in commercial products at the end of product life is not entirely clear. This uncertainty, coupled with the unknowns regarding the potential for risks to human health and the environment, could [...]

Effects-Based Risk Assessment of Emerging and Existing Nanomaterials

Chan-Remillard S., Kapustka L., Goudey S., Golder Associates Ltd. & HydroQual Laboratories Ltd., CA

Nanotechnology has been compared to the industrial revolution in its scope of applications and ability to dramatically transform new and existing technologies. Nanotechnology is a quickly emerging field where the toxicological effects on human and [...]

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 [...]

Engineering of efficient biocatalysts using nanostructured mesoporous silicate carriers

Szymanska K., Bryjak J., Jarzebski A.B., Institute of Chemical Engineering, Polish Academy of Science, PL

Immobilization of free enzymes/proteins on water-insoluble mesoporous silica (MS) supports is often applied to obtain efficient biocatalysts for various applications. Three methods were applied for enzyme bonding onto MS: (1) physical adsorption with subsequent crosslinking [...]