According to recent research at Rice University, bovine serum albumin (BSA) forms a protein “corona” around gold nanoparticles that keeps them from aggregating, particularly in high-salt environments like seawater. The discovery could lead to improved biomedical applications and contribute to projects that use nanoparticles in harsh environments.
Thin films sometimes grow layer by layer, each layer one atom thick, while in other cases atoms deposited onto a surface form 3D islands that grow, impinge, and coalesce into a continuous film. Scientists have traditionally assumed that the islands are homogeneous and coalesce at roughly the same time. In a recent study, researchers have discovered that the process is more dynamic than suggested by the traditional view.
Nearly all drugs taken orally spike in concentration, decay quickly, and are only at their peak effectiveness for a short period of time. working on a solution―nanocapsules implanted beneath the skin that release pharmaceutical drugs through a nanochannel membrane and into the body at a sustained, steady rate. To design better nanochannels for a given drug, the team is hoping to use the International Space Station.
A new study by University of Georgia researchers documents a technological breakthrough: Synthetic high density lipoprotein (HDL) nanoparticles. A completely biodegradable synthetic version of the so-called good cholesterol, the nanoparticles represent a potential new detection and therapy regimen for atherosclerosis.
Worldwide, hundreds of flights are diverted each year because of volcanic activity. Scientists monitoring Alaska's volcanoes have been forced to shut down stations that provide real-time tracking of eruptions and forgo repairs of seismic equipment amid ongoing federal budget cuts—moves that could mean delays in getting vital information to airline pilots and emergency planners.
General Motors says a new supercomputer data storage center and efforts to write its own software are paying off. The company formally opened a giant data center on Monday in the Detroit suburb of Warren, Mich. The Detroit automaker says the changes are examples of how it's moving faster to cut costs and serve customers better.
Research on bursts of energy within magnetic systems dates back two decades. But scientists haven't been able to measure and understand what prompts this phenomenon, known as "magnetic deflagration." New York University physicists have uncovered how energy is released and dispersed in magnetic materials in a process akin to the spread of forest fires.
In the curling sport, the players shoot their stones along the ice so that they slowly slide towards the target area, almost 30 m away. The game has its name from the slightly curved "curled" path taken by the stone, when released with a slow rotation. Researchers from Uppsala University in Sweden can now reveal the mechanism behind this curving path.
Detecting alien worlds presents a significant challenge since they are small, faint, and close to their stars. The two most prolific techniques for finding exoplanets are radial velocity and transits. A team at Tel Aviv University and the Harvard-Smithsonian Center for Astrophysics has just discovered an exoplanet using a new method that relies on Einstein's special theory of relativity.
Genes make up about 2% of the human genome. The rest consists of a genetic material known as noncoding DNA, and scientists have spent years puzzling over why this material exists in such voluminous quantities. Now, a new study offers an unexpected insight: The large majority of noncoding DNA, which is abundant in many living things, may not actually be needed for complex life.
A new joint innovation by the National Physical Laboratory and the University of Cambridge could pave the way for redefining the ampere in terms of fundamental constants of physics. The world's first graphene single-electron pump provides the speed of electron flow needed to create a new standard for electrical current based on electron charge.
One of the most promising new kinds of battery to power electric cars is called a lithium-air battery. But progress has been slow. Researchers have used transmission electron microscope (TEM) imaging to observe, at a molecular level, what goes on during a reaction called oxygen evolution as lithium-air batteries charge; this reaction is thought to be a bottleneck limiting further improvements to these batteries.
Leica Microsystems and TrueVision 3D Surgical introduced the debut of 3D surgical microscopes. By incorporating the digital smart 3D system inside select models of Leica Microsystems’ surgical microscopes, Leica Microsystems and TrueVision have eliminated the need for a separate 3D cart.
Rudolph Technologies Inc. has introduced the S3000SX thin-film metrology system for transparent films in advanced semiconductor fabrication applications at the 28-nm node and below. This latest addition to the S3000 product family uses Rudolph’s focused beam ellipsometry (FBE) and small site measurement optics (SSMO) to measure the thickness of single-layer and multilayer films on product wafers.
Ripening fruit, vegetables, and flowers release ethylene, which works as a plant hormone. Ethylene accelerates ripening, so other unripened fruit also begins to ripen—fruit and vegetables quickly spoil and flowers wilt. researchers in Japan have now introduced a new catalytic system for the fast and complete degradation of ethylene. This could keep the air in warehouses ethylene-free, keeping perishable products fresh longer.