Physicists have found a way to control the length and strength of waves of atomic motion that have promising potential uses such as fine-scale imaging and the transmission of information within tight spaces. The researchers measured waves called polaritons that can emerge when light interacts with matter.
A team of researchers has created a new implantable drug-delivery system using nanowires that can be wirelessly controlled. The nanowires respond to an electromagnetic field generated by a separate device, which can be used to control the release of a preloaded drug. The system eliminates tubes and wires required by other implantable devices that can lead to infection and other complications.
A battle is poised to unfold on a Hawaii mountain where one of the world's largest telescopes is set to be built. As work resumes Wednesday on the Thirty Meter Telescope atop the Big Island's Mauna Kea, protesters will try to peacefully stop the construction because they say it tramples on land that is sacred to Native Hawaiians.
Rotation is key to the performance of salad spinners, toy tops and centrifuges, but recent research suggests a way to harness rotation for the future of mankind's energy supply. In recently published papers, a physicist at Princeton Plasma Physics Laboratory demonstrated a novel method that scientists can use to manipulate the intrinsic rotation of hot, charged plasma gas within fusion facilities called tokamaks.
Home efficiency measures such as installing new windows or replacing insulation deliver such a small fraction of their promised energy savings that they may not save any money over the long run, according to the surprising conclusion of a Univ. of Chicago study.
A growing interest in thermoelectric materials and pressure to improve heat transfer from increasingly powerful microelectronic devices have led to improved theoretical and experimental understanding of how heat is transported through nanometer-scale materials. Recent research has focused on the possibility of using interference effects in phonon waves to control heat transport in materials.
Researchers from the Univ. of Illinois at Urbana-Champaign have developed a new approach for forming 3-D shapes from flat, 2-D sheets of graphene, paving the way for future integrated systems of graphene-MEMS hybrid devices and flexible electronics.
To find life in the universe, it helps to know what it might look like. If there are organisms on other planets that do not rely wholly on photosynthesis, how might those worlds appear from light-years away? That’s among the questions a Univ. of Washington team sought to answer in research published in Astrobiology.
Cancerous tumors cast off tiny telltale genetic molecules known as microRNAs and Univ. of Michigan researchers have come up with an efficient way to detect them in blood. The researchers say their approach could open the door to a single, inexpensive blood test to simultaneously screen for multiple types of cancer, eventually perhaps more than 100 different kinds.
An advanced manufacturing approach for lithium-ion batteries, developed by researchers at Massachusetts Institute of Technology and at a spinoff company called 24M, promises to significantly slash the cost of the most widely used type of rechargeable batteries while also improving their performance and making them easier to recycle.
Stanford Univ. scientists have invented a low-cost water splitter that uses a single catalyst to produce both hydrogen and oxygen gas 24 hrs a day, seven days a week. The device, described in Nature Communications, could provide a renewable source of clean-burning hydrogen fuel for transportation and industry.
Using a simple structure comprising a mirror and an absorbing layer to take advantage of the wave properties of light, researchers at Qualcomm MEMS Technologies Inc. have developed a display technology that harnesses natural ambient light to produce an unprecedented range of colors and superior viewing experience.
Researchers at The Univ. of Texas at Austin have successfully stopped cocaine and alcohol addiction in experiments using a drug already approved by the U.S. Food and Drug Administration to treat high blood pressure. If the treatment is proven effective in humans, it would be the first of its kind—one that could help prevent relapses by erasing the unconscious memories that underlie addiction.
Cultured human lung cells infected with a benign version of anthrax spores have yielded insights into how anthrax grows and spreads in exposed people. The study, published in the Journal of Applied Microbiology, will help provide credible data for human health related to anthrax exposure and help officials better understand risks related to a potential anthrax attack.
Eye doctors soon could use computing power to help them see individual cells in the back of a patient’s eye, thanks to imaging technology developed by engineers at the Univ. of Illinois. Such detailed pictures of the cells, blood vessels and nerves at the back of the eye could enable earlier diagnosis and better treatment for degenerative eye and neurological diseases.
The latest buzz in the information technology industry regards “the Internet of things”, the idea that vehicles, appliances, civil-engineering structures, manufacturing equipment and even livestock would have their own embedded sensors that report information directly to networked servers, aiding with maintenance and the coordination of tasks.
Researchers from the Univ. of Houston have devised a new formula for calculating the maximum efficiency of thermoelectric materials, the first new formula in more than a half-century, designed to speed up the development of new materials suitable for practical use.
The interiors of several of our solar system’s planets and moons are icy, and ice has been found on distant extrasolar planets, as well. But these bodies aren’t filled with the regular kind of water ice that you avoid on the sidewalk in winter. The ice that’s found inside these objects must exist under extreme pressures and high-temperatures, and potentially contains salty impurities, too.
In this one-minute video, hear from Nina Fedoroff, the former Science and Technology advisor to U.S. Secretaries of State Condoleezza Rice and Hillary Clinton, on why she blames intense regulatory demands for the lack of nutritionally valuable GMOs.
Down at the nanoscale, where objects span just billionths of a meter, the size and shape of a material can often have surprising and powerful electronic and optical effects. Building larger materials that retain subtle nanoscale features is an ongoing challenge that shapes countless emerging technologies. Now, scientists have developed a new technique to create nanostructured grids for functional materials with unprecedented versatility.
Some top international doctors and public health experts have issued an urgent prescription for a feverish planet Earth: Get off coal as soon as possible. Substituting cleaner energy worldwide for coal will reduce air pollution and give Earth a better chance at avoiding dangerous climate change, recommended a global health commission.
Virginia Tech engineers have shed light on what happens to a nearby particle when bubbles burst. Sunghwan Jung, an assistant professor of biomedical engineering and mechanics in the College of Engineering, has discovered new information about a phenomenon called cavitation, the process of bubble formation in a fluid like water.
As part of their long-term investigation of regulatory factors in the bacterial cell cycle, molecular biologists at the Univ. of Massachusetts Amherst now report finding a surprising new role for one factor, CpdR, an adaptor that helps to regulate selective protein destruction, the main control mechanism of cell cycle progression in bacteria, at specific times.
Physicists have developed a new way to control the transport of electrical currents through high-temperature superconductors. Their achievement, detailed in two separate scientific publications, paves the way for the development of sophisticated electronic devices capable of allowing scientists or clinicians to non-invasively measure the tiny magnetic fields in the heart or brain, and improve satellite communications.
Anything you can do, nature can do better. Chemical delivery systems, self-healing cells, non-stick surfaces, nature perfected those long ago. Now, researchers at Harvard Univ. have hacked nature's blueprints to create a new technology that could have broad-reaching impact on drug delivery systems and self-healing and anti-fouling materials.