An official website of the United States government.
Scientists have demonstrated a wireless sensor small enough to be implanted in the blood vessels of the human brain, so it could help clinicians evaluate the healing of aneurysms -- bulges that can cause death or serious injury if they burst.
Scientists at the Massachusetts Institute of Technology have created the biggest computer chip yet made from carbon nanotubes: rolled up sheets of atom-thick graphene that conduct electricity at super-fast speeds. Some researchers hope that carbon nanotubes could be used in future computers, because they conduct electricity faster and more efficiently than silicon.
Scientists at the Massachusetts Institute of Technology have created the biggest computer chip yet made from carbon nanotubes: rolled up sheets of atom-thick graphene that conduct electricity at super-fast speeds. Some researchers hope that carbon nanotubes could be used in future computers, because they conduct electricity faster and more efficiently than silicon.
Scientists at Brookhaven National Laboratory have created “resists”—materials that are used as templates for transferring circuit patterns into device-useful substrates such as silicon – that combine the organic polymer poly(methyl methacrylate), or PMMA, with inorganic aluminum oxide. These “hybrid” organic-inorganic resists enable the patterning of high-resolution silicon nanostructures with a high aspect ratio.
Scientists at Brookhaven National Laboratory have created “resists”—materials that are used as templates for transferring circuit patterns into device-useful substrates such as silicon – that combine the organic polymer poly(methyl methacrylate), or PMMA, with inorganic aluminum oxide. These “hybrid” organic-inorganic resists enable the patterning of high-resolution silicon nanostructures with a high aspect ratio.
Researchers from Northwestern University have developed a novel way to track how nanoparticles interact with cancer cells and whether they reach their targets. The team’s work shows that if a nanoparticle targets cancer cells, it undergoes more rotational and translational movement compared to nanoparticles that cannot target cancer cells effectively.
Researchers from Northwestern University have developed a novel way to track how nanoparticles interact with cancer cells and whether they reach their targets. The team’s work shows that if a nanoparticle targets cancer cells, it undergoes more rotational and translational movement compared to nanoparticles that cannot target cancer cells effectively.
Researchers have shown that multilayer graphene can provide a two-fold defense against mosquito bites. The ultra-thin yet strong material acts as a barrier that mosquitoes are unable to bite through. At the same time, experiments showed that graphene also blocks chemical signals mosquitoes use to sense that a blood meal is near, blunting their urge to bite in the first place.
Researchers have shown that multilayer graphene can provide a two-fold defense against mosquito bites. The ultra-thin yet strong material acts as a barrier that mosquitoes are unable to bite through. At the same time, experiments showed that graphene also blocks chemical signals mosquitoes use to sense that a blood meal is near, blunting their urge to bite in the first place.
Researchers have revealed previously unknown factors that contribute to the hardening of arteries and plaque growth, which cause heart disease. Their insight is the basis for a promising therapeutic approach to halt and potentially reverse plaque buildup and the progression of disease, the researchers said.
