Until now, designers of buildings have no choice but to use black or bluish-gray colored solar panels. With the help of thin-film technologies, researchers have now been able to turn solar cells into colorful creations.
Researchers have built a matchbox-sized device that can test for the presence of bacteria in a couple of minutes, instead of up to several weeks. A nano-lever vibrates in the presence of bacterial activity, while a laser reads the vibration and translates it into an electrical signal that can be easily read - the absence of a signal signifies the absence of bacteria.
The National Institute of Standards and Technology (NIST) has announced a competition to create an Advanced Materials Center of Excellence to foster interdisciplinary collaborations between NIST researchers and scientists and engineers from academia and industry. The new center will focus on accelerating the discovery and development of advanced materials through innovations in measurement science and in new modeling, simulation, data and informatics tools.
Researchers showed that they could detect uniform heat signatures from the various cells and measured significant difference between dead and living ones, suggesting a new way to probe cells for biological activity.
Using an instrument called an angular optical trap, researchers have reported direct measurements of the torque generated by the motor protein, E. coli RNA polymerase, as it traverses supercoiled DNA. Their technique may be used to examine the broader impacts of torque and DNA supercoiling associated with other motor proteins, and lend new insights into the gene transcription process.
Indium tin oxide has become a standard material in light-emitting diodes, flat panel plasma displays, electronic ink and other applications, but it is rare and expensive. Now, researchers from Arizona State University report creating a sturdy, transparent, and indium-free electrode from silver and titanium dioxide.
In a new study, a 'bioadhesive' coating developed at Brown University significantly improved the intestinal absorption into the bloodstream of nanoparticles that someday could carry protein drugs such as insulin. Such a step is necessary for drugs taken by mouth, rather than injected directly into the blood.
The principle of interferometry is often used in high precision measurements: A beam is split in two parts, which then interfere, yielding intricat interference patterns, from which very precise data can be obtained. Usually, this is done with photons or small massive particles such as electrons or neutrons. At the Vienna University of Technology, an interferometer has now been built which instead uses Bose-Einstein-condensates, consisting of hundreds of atoms.
For the first time, researchers have managed to observe growth of high-efficiency chalcopyrite thin film solar cells in real time and to study the formation and degradation of defects that compromise efficiency.