Nanotechnology

An Ionic Twist on Hair Care

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
Read More >>

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
Read More >>

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
Read More >>

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
Read More >>

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
Read More >>

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
Read More >>

Magnetic Responsive Hydrogel Material Delivery System

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
Read More >>

Boosting Nanowires for Better Batteries and Solar Cells

Stanford University engineers have found a novel method for "decorating" nanowires with chains of tiny particles to increase their electrical and catalytic performance. The technique is simpler and faster than earlier methods and could lead to better lithium-ion batteries, more efficient thin-film solar cells, and improved catalysts that yield new synthetic fuels.

Posted in: News, News, Batteries, Alternative Fuels, Energy Storage, Renewable Energy, Solar Power, Nanotechnology
Read More >>

Nanotrees Turn Sunshine into Hydrogen Fuel

University of California, San Diego electrical engineers are building a forest of tiny nanowire trees in order to cleanly capture solar energy and harvest it for hydrogen fuel generation. Nanowires, which are made from abundant natural materials like silicon and zinc oxide, offer a cheap way to deliver hydrogen fuel on a mass scale.

Posted in: News, News, Alternative Fuels, Energy Harvesting, Renewable Energy, Solar Power, Greenhouse Gases, Nanotechnology
Read More >>

Measuring Techniques Improve Efficiency & Safety of Nanoparticles

Using high-precision microscopy and X-ray scattering techniques, University of Oregon researchers have gained new insights into the process of applying green chemistry to nanotechnology - resulting in high yields, improved efficiency, and a dramatic reduction of waste and potential negative exposure to human health or the environment.

Posted in: News, News, Energy Efficiency, Green Design & Manufacturing, Smart Grid, Imaging, Nanotechnology
Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.