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Nanotechnology

Medical

Nanotube film could replace defective retinas

A promising new study suggests that a wireless, light-sensitive, and flexible nanotube-semiconductor nanocrystal film could potentially form part of a prosthetic device to replace damaged or defective retinas. The film both absorbs light and stimulates neurons without being connected to any wires or external power sources, standing it apart from silicon-based devices used for the same purpose. It has so far been tested only on light-insensitive retinas from embryonic chicks, but the researchers hope to see the pioneering work soon reach real-world human application.Read More

Automotive

New tech could allow electric cars' body panels to store energy

Imagine opening up an electric car and finding no batteries. An absent-minded factory worker or magic? Perhaps neither. If nanotechnology scientists led by the Queensland University of Technology (QUT) are on the right track, it may one day be a reality as cars are powered not by batteries, but their body panels – inside which are sandwiched a new breed of supercapacitors.Read More

Science

Large 3D nanostructures built from Lego-like DNA bricks

The very same building blocks that make us have been successfully programmed to form 32 differently-shaped crystal structures. The structures feature a precisely-defined depth and a variety of sophisticated 3D nanoscale attributes, thereby laying further foundations for the use of DNA to revolutionize nanotechnology.Read More

Medical

Green tea nanocarrier delivers cancer-killing drugs more effectively

Many of us drink green tea for its wonderful health benefits, including proven antioxidant, antimicrobial, anti-aging and anti-cancer properties. Now, researchers in Singapore have taken its cancer-fighting properties to the next level, developing a green tea-based nanocarrier that encapsulates cancer-killing drugs. It is the first time green tea has been used to deliver drugs to cancer cells, with promising results. Animal studies show far more effective tumor reduction than use of the drug alone while significantly reducing the accumulation of drugs in other organs.Read More

Electronics

Breakthrough in LED construction increases efficiency by 57 percent

With LEDs being the preferred long-lasting, low-energy method for replacing less efficient forms of lighting, their uptake has dramatically increased over the past few years. However, despite their luminous outputs having increased steadily over that time, they still fall behind more conventional forms of lighting in terms of brightness. Researchers at Princeton University claim to have come up with a way to change all that by using nanotechnology to increase the output of organic LEDs by 57 percent.Read More

Science

Shellfish proteins inspire waterproof wonderglue

Clingy barnacles might be something of a nuisance for seafarers, but these stubborn shellfish and their relatives could hold the key to a new breed of sticky materials. Engineers from MIT have created waterproof adhesives based on the proteins that give these creatures such qualities, a development that could one day be used in ship repairs or medical applications. Read More

Electronics

Buckyballs and diamondoids combined to create molecule-sized diode

Scientists working at the Stanford Institute for Materials and Energy Sciences (SIMES) claim to have created a molecule-sized electronic component just a few nanometers long that conducts electricity in only the one direction. In essence, a rectifier diode, but one so small that it may one day help replace much bulkier diodes and other semiconductors found on today's integrated circuits to produce incredibly compact, super-fast electronic devices.Read More

Medical

Organs-on-Chips emulate human organs, could replace animals in tests

The search for more efficient tests of pharmaceuticals without animal models is taking a stride forward, with a new technology being developed in the US called Organs-on-Chips. The new miniature platform and software, which mimic the mechanical and molecular characteristics of human organs, were developed by bioengineers from the Wyss Institute for Biologically Inspired Engineering at Harvard University. Read More

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