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ScienceDaily - 30-Apr-2014

The Department of Defense needs materials for armor windows that provide essential protection for both personnel and equipment while still having a high degree of transparency. To meet that need, scientists have developed a method to fabricate nanocrystalline spinel that is 50 percent harder than the current spinel armor materials used in military vehicles. ...

ScienceDaily - 29-Apr-2014

Scientists have created a thin, flexible film that combines the best qualities of batteries and supercapacitors. Chemists developed a flexible material with nanoporous nickel-fluoride electrodes layered around a solid electrolyte to deliver battery-like supercapacitor performance that combines the best qualities of a high-energy battery and a high-powered supercapacitor without the lithium found in...

ScienceDaily - 29-Apr-2014

A unique, noninvasive method measures the disassembly of biodegradable nanoparticles that can be used to deliver medicines to patients. The technique is a necessary stop in translating nanoparticles into clinical use. "Nanoparticles could be formulated with contrast agents for diagnostic imaging, or could deliver anticancer drugs to a tumor," one researcher said. "Our measuring tool can help researchers...

ScienceDaily - 25-Apr-2014

A new version of 'spaser' technology being investigated could mean that mobile phones become so small, efficient, and flexible they could be printed on clothing. A spaser is effectively a nanoscale laser or nanolaser. It emits a beam of light through the vibration of free electrons, rather than the space-consuming electromagnetic wave emission process of a traditional laser. ...

ScienceDaily - 25-Apr-2014

Who guarantees that expensive olive oil isn't counterfeit or adulterated? An invisible label could perform this task. The tag consists of tiny magnetic DNA particles encapsulated in a silica casing and mixed with the oil. The worldwide need for anti-counterfeiting labels for food is substantial. In December 2013 and January 2014, Interpol and Europol confiscated more than 1,200 tonnes of counterfeit...

ScienceDaily - 24-Apr-2014

A way to detect and measure cancer levels in a living cell by using tiny gold particles with tails of synthetic DNA has been developed by scientists. The process uses gold nanoparticles to target and bind to fragments of genetic material known as BRCA1 messenger RNA splice variants, which can indicate the presence and stage of breast cancer. The number of these mRNA splice variants in a cell can be...

ScienceDaily - 24-Apr-2014

By looking at a piece of material in cross section, engineers discovered how copper sprouts grass-like nanowires that could one day be made into solar cells. The researchers worked with copper foil, a simple material similar to household aluminum foil. When most metals are heated, they form a thick metal oxide film. However, a few metals, such as copper, iron and zinc, grow grass-like structures known...

ScienceDaily - 23-Apr-2014

By combining the powers of two single-atom-thick carbon structures, researchers have created a new ultracapacitor that is both high performance and low cost. The device capitalizes on the synergy brought by mixing graphene flakes with single-walled carbon nanotubes, two carbon nanostructures with complementary properties. ...

ScienceDaily - 23-Apr-2014

Nanotechnology researchers have discovered new methods to build boiling-resistant nanostructures and arrays using a new RNA triangle scaffold. These new RNA nanoarchitechtures can be used to form arrays with a controllable repeat number of the scaffold, resembling monomer units in a polymerization reaction. Their enhanced structural stability and controllability at the nano scale offer key advantages...

ScienceDaily - 23-Apr-2014

Two groups of researchers have recently advanced the field of solar cells with a cheaper and efficient replacement for platinum and better synthesis of zinc oxide. Working on dye-sensitized solar cells -- researchers in Malaysia have achieved an efficiency of 1.12%, at a fraction of the cost compared to those used by platinum devices. ...

ScienceDaily - 23-Apr-2014

Using nanodot technology, researchers demonstrated the first size-based form of chromatography for studying the membranes of living cells. This unique physical approach to probing cellular membrane structures reveals critical information that can't be obtained through conventional microscopy. ...

ScienceDaily - 23-Apr-2014

In the quest to make sun power more competitive, researchers are designing ultrathin solar cells that cut material costs. At the same time they're keeping these thin cells efficient by sculpting their surfaces with photovoltaic nanostructures that behave like a molecular hall of mirrors. ...

ScienceDaily - 23-Apr-2014

Ions are an essential tool in chip manufacturing, but they can also be used to produce nano-sieves. A large number of electrons must be removed from the atoms for this purpose. Such ions either lose a large amount of energy or almost no energy at all as they pass through a membrane that measures one nanometer in thickness. Researchers report that this discovery is an important step towards developing...

ScienceDaily - 23-Apr-2014

By mimicking a viral strategy, scientists have created the first cloaked DNA nanodevice that survives the body's immune defenses. Their success opens the door to smart DNA nanorobots that use logic to spot cancerous tissue and manufacture drugs on the spot to cripple it, as well as artificial microscopic containers called protocells that detect pathogens in food or toxic chemicals in drinking water....

ScienceDaily - 20-Apr-2014

Impurities can hurt performance -- or possibly provide benefits -- in a key superconductive material that is expected to find use in a host of applications, including future particle colliders. The size of the impurities determines whether they help or hinder the material's performance, according to new research. ...

ScienceDaily - 20-Apr-2014

Researchers have shown how to switch a particular transition metal oxide, a lanthanum nickelate, from a metal to an insulator by making the material less than a nanometer thick. Ever-shrinking electronic devices could get down to atomic dimensions with the help of transition metal oxides, a class of materials that seems to have it all: superconductivity, magnetoresistance and other exotic properties....


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