They are the coldest objects in the universe and are so fragile that even a single photon can heat and destroy them. Known as Bose-Einstein condensates (BECs) and consisting of just a cluster of atoms, it has up until now been impossible to measure and control these remarkable forms of matter simultaneously.
Splitting water into its components, two parts hydrogen and one part oxygen, is an important first step in achieving carbon-neutral fuels to power our transportation infrastructure. Now, North Carolina State Univ. researchers and colleagues from the Univ. of North Carolina at Chapel Hill have shown that a specialized coating technique can make certain water-splitting devices more stable and more efficient.
Humble aluminum’s plasmonic properties may make it far more valuable than gold and silver for certain applications, according to new research by Rice Univ. scientists. Because aluminum, as nanoparticles or nanostructures, displays optical resonances across a much broader region of the spectrum than either gold or silver, it may be a good candidate for harvesting solar energy and for other large-area optical devices and materials.
Lidar rangefinders gauge depth by emitting short bursts of laser light and measuring the time it takes for reflected photons to arrive back and be detected. In Science, researchers from Massachusetts Institute of Technology’s Research Laboratory of Electronics describe a new lidar-like system that can gauge depth when only a single photon is detected from each location.
Bruker Corp. has announced that it has been granted U.S. FDA clearance under Section 510(k) to market its MALDI Biotyper CA System in the United States for the identification of Gram negative bacterial colonies cultured from human specimens. The clearance marks progress in Bruker’s efforts to develop MALDI-TOF mass spectrometry into the most advanced platform for clinical microbiology identification.
The European Commission has approved the pending acquisition of Life Technologies Corp. by Thermo Fisher Scientific, which has committed to divest its cell culture (sera and media), gene modulation and magnetic beads businesses to expedite the approval. Combined, these businesses had 2012 revenue of approximately $225 million.
The presence of molecular hydrogen, in addition to carbon dioxide and water, could have created a greenhouse effect on Mars 3.8 billion years ago that pushed temperatures high enough to allow for liquid water. This is according to a team of researchers who believe this is the only way for giant canyons like Nanedi Valles could have formed.
Einstein@Home creates a global supercomputer by connecting more than 350,000 participants that contribute to a variety of scientific projects, particularly astronomy, by conducting distributed analysis routines with their home computers. This resource has already found several pulsars hidden in radio telescope data. Now, “citizen scientists” have helped researchers discover four new gamma-ray pulsars.
Univ. of Arizona agricultural and biosystems engineering associate professor Jeong-Yeol Yoon and cardiology professor Dr. Marvin Slepian are testing nanotextured surfaces to improve how cardiovascular implant devices are attached in the body. The goal is to create a selectively sticky surface, favoring endothelial cell attachment, without favoring platelet attachment.
In materials science, electric and magnetic effects have usually been studied separately. There are, however, extraordinary materials called “multiferroics”, in which electric and magnetic excitations are closely linked. Scientists in Austria have now shown in an experiment that magnetic properties and excitations can be influenced by an electric voltage.
Stuck inside on a rainy, dreary day in France, two physicists and an engineer stumbled on a television program about whirling dervishes. The film caused them to discuss structures with conical symmetry, or rotating flexible structures with a conical shape. Their thoughts have become the basis for a recent technical paper, which uses understandings of Coriolis force to develop simple explanatory equations.
New research from North Carolina State Univ. shows that iron may play a role in preserving ancient tissues within dinosaur fossils, but also may hide them from detection. The finding could open the door to the recovery of more ancient tissues from within fossils.
Researchers have made inroads into tackling a bacterium that plagues hospitals and is highly resistant to most antibiotics. They determined the 3-D structure and likely function of a new protein in this common bacterium that attacks those with compromised immune systems.
Comet ISON will be only about 1 million miles away from the sun's super-hot surface during its close encounter on Thanksgiving. On Monday, it looked like it was about to die even before it got there. On Tuesday, it appeared healthy again. Will it meet a fiery death (or survive) when it whips around the sun on Thursday? Scientists haven’t seen a comet behave this way before.
A new innovation may help us deal with post-Thanksgiving guilt: Biotechnologists have constructed a genetic regulatory circuit from human components that monitors blood-fat levels. In response to excessive levels, it produces a messenger substance that signals satiety to the body. Tests on obese mice reveal that this helps them to lose weight.