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...
Researchers are adapting technology for 3-D printing metals, ceramics, and other materials to create custom medical implants designed to fix complicated injuries. Using a technology called Laser Engineered Net Shaping (LENS), these new implants integrate into the body more effectively, encouraging bone regrowth that ultimately results in a stronger, longer lasting implant.
Coral reefs, the most biodiverse ecosystems in the world’s oceans, provide safe harbor for fish and organisms of many sizes that make homes among the branches, nooks and crannies of the tree-like coral. But reefs are declining because of disease and bleaching, conditions exacerbated by rising ocean temperatures.
A Duke Univ. research team has developed a better recipe for synthetic replacement cartilage in joints. Combining two innovative technologies, the team found a way to create artificial replacement tissue that mimics both the strength and suppleness of native cartilage. Articular cartilage is the tissue on the ends of bones where they meet at joints in the body.
A novel and faster way to test cancer drugs has yielded its first big result: An experimental medicine that shows promise against a hard-to-treat form of breast cancer. The method involves studying drugs in small groups of people to quickly separate winners from duds. Bringing a new cancer drug to market usually takes more than a decade and tests in thousands of patients, and costs more than $1 billion.
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.