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Science

Chemists create clever rewritable paper

The paperless office – one of the promises of the new digital age – has not really eventuated. Instead, most organizations still print out large amounts of documents on paper that, according to the WWF, is being produced at around 400 million tons (362 million tonnes) a year and rising. So, wouldn’t it be great if we could just simply wipe off the print on paper and use it over and over again? Chemists at the University of California, Riverside (UCR) thought that this might be a good idea too, and have now created rewritable paper that can be printed on and erased more than 20 times before it needs to be discarded.Read More

Environment

Nanoparticle-based material turns up the heat on concentrated solar power

The key factor when it comes to solar power plant efficiency – be they of the photovoltaic or concentrated solar power variety – is the amount of light that can be captured by the light-absorbing material and converted into electricity or heat. Researchers at the University of California, San Diego have developed a new nanoparticle-based material that promises to improve the efficiency of CSP plants with its ability to absorb and convert over 90 percent of the sunlight it captures into heat. Read More

Electronics

Ant-sized radios could help connect trillions of devices to the Internet of Things

A team of researchers from Stanford University and the University of California, Berkeley, has created prototype radio-on-a-chip communications devices that are powered by ambient radio waves. Comprising receiving and transmitting antennas and a central processor, the completely self-contained ant-sized devices are very cheap to manufacture, don't require batteries to run and could give the "Internet of Things" (IoT) a serious kick start. Read More

Environment

Hitachi developing reactor that burns nuclear waste

The problem with nuclear waste is that it needs to be stored for many thousands of years before it’s safe, which is a tricky commitment for even the most stable civilization. To make this situation a bit more manageable, Hitachi, in partnership with MIT, the University of Michigan, and the University of California, Berkeley, is working on new reactor designs that use transuranic nuclear waste for fuel; leaving behind only short-lived radioactive elements.Read More

Medical

Multi-tasking nanoparticle both seeks and destroys cancerous cells

Nanoparticles hold great potential as a way of both detecting cancer cells and delivering the drugs to treat them. One hurdle that has proven difficult to overcome is incorporating these properties into one multi-purpose device, as nanoparticles are generally engineered with either goal in mind. In what appears a promising development, researchers at the University of California Davis (UC Davis) Cancer Center have created a multi-tasking nanoparticle shown to be effective both in the diagnosis of a tumor and attacking its cells – a flexibility that could lead to new treatment options for cancer patients.Read More

Electronics

Temporary tattoo lactate sensor converted into sweat-powered biobattery

Last year, researchers at the University of California, San Diego (UCSD) unveiled a sensor imprinted on a temporary tattoo that, when applied to the skin, is able to continuously monitor lactate levels in a person's sweat as they exercise. Now the research team has leveraged the technology to create a biobattery powered by perspiration that could lead to small electronic devices being powered by sweat.Read More

Space

NASA selects concept technologies for phase 2 NIAC funding

NASA has chosen five studies to advance to phase 2 of its Innovative Advanced Concepts (NIAC) Program. The successful projects were chosen via a system of peer review, and represent the most promising technological concepts with the greatest potential to revolutionize the agency's approach to the building and operating of aerospace systems. Read More

Robotics

Robots that use Wi-Fi to see through walls

Robots created by a team working at the University of California, Santa Barbara are able to look through solid walls using just Wi-Fi signals. With potential applications in search and rescue, surveillance, detection and archeology, these robots have the capability to identify the position and outline of unseen objects within a scanned structure, and then categorize their composition as metal, timber, or flesh. Read More

Computers

Vision-correcting display lets users ditch their reading glasses

In an age where reading something from a screen on a phone or a computer is a normal part of our daily lives, the wearing of glasses or contact lenses often makes doing so a chore with eye-strain problems and the necessity to carry around spectacles or lenses wherever you go. In this vein, researchers at the University of California at Berkeley have created a prototype vision-correcting, printed pinhole matrix that they claim fits directly to a screen and negates the need for eyeglasses or remedial lenses and may one day offer improved visual acuity to those with eye problems much worse than simple farsightedness.Read More

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