Nanotechnology

An Ionic Twist on Hair Care

Nanomaterials developed by NASA play a big role in professional hairstyling tools.Disinfecting can be dirty work. Typical cleaning agents, like chlorine and alcohol, release fumes that don’t go away when applied in the contained environment of a spacecraft. So NASA scientists developed an alternative method to keep surfaces disinfected, using a material whose antimicrobial properties have long been known: nanosilver.

Posted in: Articles, Nanotechnology, Bacteria, Human factors, Ceramics, Materials properties, Nanomaterials

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Record Efficiency for Next-Generation Solar Cells

Researchers from the University of Toronto (U of T) and King Abdullah University of Science & Technology (KAUST) have made a breakthrough in the development of colloidal quantum dot (CQD) films. The researchers created a solar cell out of inexpensive materials that was certified at a world-record 7.0% efficiency.

Posted in: News, News, Energy Efficiency, Renewable Energy, Solar Power, Nanotechnology, Semiconductors & ICs

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Solar Nanowire Template Permits Flexible Energy Absorption

Researchers creating electricity through photovoltaics want to convert as many of the sun’s wavelengths as possible to achieve maximum efficiency. For this reason, they see indium gallium nitride as a valuable future material for photovoltaic systems. Changing the concentration of indium allows researchers to tune the material’s response so it collects solar energy from a variety of wavelengths.

Posted in: News, News, Energy Efficiency, Renewable Energy, Solar Power, Materials, Nanotechnology

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Generating Electricity From Viruses?

Berkeley Lab scientists have developed a way to generate power using harmless viruses that convert mechanical energy into electricity. Their generator is the first to produce electricity by harnessing the piezoelectric properties of a biological material.

Posted in: News, News, Power Management, Energy, Energy Harvesting, Displays/Monitors/HMIs, Nanotechnology

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Technology Awarded for Improving Submarine Air Quality

Creators of a nanotech-based system that captures carbon dioxide from the atmosphere within a submarine while providing a more environmentally friendly removal process have won the Federal Laboratory Consortium Interagency Partnership Award for 2012. The technology — Self Assembled Monolayers on Mesoporous Supports, or SAMMS — is destined for incorporation into future submarines.

Posted in: News, News, Greenhouse Gases, Remediation Technologies, Materials, Nanotechnology

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Copper-Gold Nanoparticles Efficiently Convert Carbon Dioxide

Copper is one of the few metals that can turn carbon dioxide into hydrocarbon fuels with relatively little energy, but it is temperamental and easily oxidized. MIT researchers have engineered nanoparticles of copper mixed with gold - which is resistant to corrosion and oxidation - making the copper much more stable. They coated electrodes with the hybrid nanoparticles and found that much less energy was needed for conversion.

Posted in: News, News, Energy Efficiency, Greenhouse Gases, Remediation Technologies, Materials, Metals, Nanotechnology

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Magnetic Responsive Hydrogel Material Delivery System

Magnetic nanoparticles can be used as contrasting agents in MRIs, and as a drug delivery mechanism. Interest in the design of new drug delivery systems focuses on releasing the drug at a controlled rate and desired time. Magnetic nanoparticles (MNPs) have shown great potential for use in biomedicine due to their ability to get close to biological entities such as cells, viruses, proteins, and genes with heating ability when exposed to a time-varying magnetic field. Superparamagnetic MNPs with proven biocompatibility have attracted attention as drug carriers in hyperthermia therapy, magnetic resonance imaging (MRI) as a contrasting agent, tissue repair, immunoassay, and cell separation procedures.

Posted in: Briefs, MDB, Briefs, Drug Delivery, Medical, Nanotechnology, Medical equipment and supplies, Magnetic materials, Nanomaterials, Pharmaceuticals

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