A research team in France has invented an adhesion method that creates a strong bond between two gels by spreading on their surface a solution containing nanoparticles. Until now, there was no entirely satisfactory method of obtaining adhesion between two gels or two biological tissues. The bond is resistant to water and uses no polymers or chemical reactions.
One of the most difficult hurdles in adapting...
DARPA-funded researchers have recently developed...
Professor Ken Naitoh of Waseda Univ.'s Faculty of...
Cancer involves a breakdown of normal cell behavior. Cell reproduction and movement go haywire, causing tumors to grow and spread through the body. A new finding by Univ. of Pennsylvania scientists has identified key steps that trigger this disintegration of cellular regulation. Their discovery—that a protein called Exo70 has a split personality—points to new possibilities for diagnosing cancer metastasis.
A new study by researchers at the Univ. of California, Los Angeles and McGill Univ. reveals that the U.S. health care system ranks 22nd out of 27 high-income nations when analyzed for its efficiency of turning dollars spent into extending lives. The study illuminates stark differences in countries' efficiency of spending on health care, and the U.S.'s inferior ranking reflects a high price paid and a low return on investment.
Computational work conducted at Northwestern Univ. has led to a new mathematical theory for understanding the global spread of epidemics. The resulting insights could not only help identify an outbreak’s origin but could also significantly improve the ability to forecast the global pathways through which a disease might spread.
Brown Univ. researchers have shown that optogenetics can be as good as or possibly better than the older technique of using small bursts of electrical current. Optogenetics had been used in small rodent models. Research has shown that optogenetics works effectively in larger, more complex brains.
Blending ethanol into fuel to cut air pollution from vehicles carries a hidden risk that toxic or even explosive gases may find their way into buildings. The problems would likely occur in buildings with cracked foundations that happen to be in the vicinity of fuel spills. Vapors that rise from contaminated groundwater can be sucked inside; and, once there, trapped pools of methane could ignite and toxic hydrocarbons causing health issues.
Since the completion of the Human Genome Project, which identified nearly 20,000 protein-coding genes, scientists have been trying to decipher the roles of those genes. A new approach, called CRISPR, should speed up the process by allowing researchers to study the entire genome at once. The new system allows researchers to permanently and selectively delete genes from a cell’s DNA.
Researchers are developing a new kind of geothermal power plant that will lock away unwanted carbon dioxide underground and use it as a tool to boost electric power generation by at least 10 times compared to existing geothermal energy approaches. The technology to implement this design already exists in different industries, so the researchers are optimistic that their new approach could expand the use of geothermal energy in the U.S.
Researchers have proved the feasibility of a new type of transistor that could enable fast and low-power computing devices for energy-constrained applications such as smart sensor networks and implantable medical electronics. Called a near broken-gap tunnel field effect transistor, the new device uses the quantum mechanical tunneling of electrons through an ultrathin energy barrier to provide high current at low voltage.
Researchers at the Wyss Institute for Biologically Inspired Engineering and Harvard Univ. have have recently shown that an important class of artificial intelligence algorithms could be implemented using chemical reactions. These algorithms use a technique called “message passing inference on factor graphs” and are a mathematical coupling of ideas from graph theory and probability.
A Seoul court rejected Samsung's claim that iPhone and iPad models violated three of its patents, another setback for the South Korean electronics giant in a global battle with Apple over rights to technologies that power smartphones and tablets.
Researchers have tuned coherence in organic nanostructures due to the surprise discovery of wave-like electrons in organic materials, revealing the key to generating long-lived charges in organic solar cells. By using an ultra-fast camera, scientists have observed the very first instants following the absorption of light into artificial, organic nanostructures and found that charges formed rapidly and separated quickly over long distances.
Noble gas molecules have been detected in space for the first time in the Crab Nebula, a supernova remnant, by astronomers at Univ. College London. Led by Prof. Mike Barlow, the team used ESA's Herschel Space Observatory to observe the Crab Nebula in far infrared light. Their measurements of regions of cold gas and dust led them to the serendipitous discovery of the chemical fingerprint of argon hydride ions.
The astronauts aboard the International Space Station dimmed the lights, turned off unnecessary equipment and put off science work Thursday as NASA scrambled to figure out what's wrong with a key cooling unit. One of two identical cooling loops shut down Wednesday when the line got too cold because of a faulty valve. The system uses ammonia to dissipate heat from onboard equipment.
Strategies to manipulate light and sound go back to the first spherical glass bead and the pounding of the first hollow log. But their full potential is only just becoming apparent, according to a review by materials scientists at Rice Univ. and their colleagues. New abilities to corral light and sound from the macroscale to the nanoscale with structured polymers could deliver profound changes in the way we live.
Interplay between genes and the environment has been pondered at least since the mid-1800s. But until the arrival of modern genomic sequencing tools, it was hard to measure the extent that the environment had on a species’ genetic makeup. Now, researchers studying fruit flies that live on opposite slopes of a unique natural environment known as “Evolution Canyon” show the driving force in the gene pool is largely the environment.