What looked at first like an upside-down planet has instead revealed a new method for studying binary star systems, discovered by a Univ. of Washington (UW) student astronomer. Working with UW astronomer Eric Agol, doctoral student Ethan Kruse has confirmed the first “self-lensing” binary star system: one in which the mass of the closer star can be measured by how powerfully it magnifies light from its more distant companion star.
Using nanodot technology, Lawrence Berkeley National Laboratory researchers have demonstrated the first size-based form of chromatography that can be used to study the membranes of living cells. This unique physical approach to probing cellular membrane structures can reveal information critical to whether a cell lives or dies, remains normal or turns cancerous, that can’t be obtained through conventional microscopy.
In the hands of some Rice Univ. senior engineering students, a fishing rod is more than what it seems. For them, it’s a way to help destroy blood clots that threaten lives. Branding themselves as “Team Evacuator,” five students have been testing a device to break up blood clots that form in the bladders of adult patients and currently have to be removed by suction through a catheter in the urethra.
Unlike healthy cells, cancer cells thrive when deprived of oxygen. Tumors in low-oxygen environments tend to be more resistant to therapy and spread more aggressively to other parts of the body. Measuring tumors’ oxygen levels could help doctors make decisions about treatments, but there’s currently no way to make such measurements. However, a new sensor developed at Massachusetts Institute of Technology could change that.
A team of scientists has successfully identified the age of 120,000-year-old Antarctic ice using radiometric krypton dating, a new technique that may allow them to locate and date ice that is more than a million years old. Unlike the well-known dating isotope carbon-14, krypton is a noble gas that does not interact chemically and is much more stable, allowing more accurate dating of ice.
The ability to stick objects to a wide range of surfaces such as drywall, wood, metal and glass with a single adhesive has been the elusive goal of many research teams across the world, but now a team of Univ. of Massachusetts Amherst inventors describe a new, more versatile version of their invention, Geckskin, that can adhere strongly to a wider range of surfaces, yet releases easily, like a gecko's feet.
Physicist Wei Chen at Univ. of Texas at Arlington’s Center for Security Advances Via Applied Nanotechnology was testing a copper-cysteamine complex created in his laboratory when he discovered unexplained decreases in its luminescence, or light emitting power, over a time-lapse exposure to x-rays. Further testing work revealed that the “Cu-Cy” nanoparticles, when combined with x-ray exposure, significantly slowed tumor growth in studies.
For years, companies have been adding whiteners to laundry detergent, paints, plastics, paper and fabrics to make whites look "whiter than white," but now, with a switch away from incandescent and fluorescent lighting, different degrees of whites may all look the same, according to experts in lighting.
Using corn crop residue to make ethanol and other biofuels reduces soil carbon and can generate more greenhouse gases than gasoline, according to a study published in the journal Nature Climate Change. The findings by a Univ. of Nebraska-Lincoln team of researchers cast doubt on whether corn residue can be used to meet federal mandates to ramp up ethanol production and reduce greenhouse gas emissions.
Fluxion Biosciences has introduced a new series of assay kits designed to enhance and complete the workflow for next-generation sequencing (NGS) using the IsoFlux System. The IsoFlux NGS assay kits are designed to work with circulating tumor material enriched on the IsoFlux System.
The Supercritical Fluid Technologies benchtop supercritical fluid extractor (SFE) model SFT-110XW is the latest addition to the SFE product line. The redesigned restrictor valve with integrated micrometer allows for very precise flow control, which is essential for demanding applications.
A team of scientists, led by physicist Amir Yacoby of Harvard Univ., has developed a magnetic resonance imaging (MRI) system that can produce nanoscale images, and may one day allow researchers to peer into the atomic structure of individual molecules. Though not yet precise enough to capture atomic-scale images of a single molecule, the system already has been used to capture images of single electron spins.
Researchers in Ireland have used a simple method for transforming flakes of graphite into defect-free graphene using commercially available tools, such as high-shear mixers. They demonstrated that the process could be scaled up to produce hundreds of liters or more, and they have partnered with Thomas Swan Ltd. to develop two new graphene-based products for the marketplace.
Scientists at Rice Univ. have created a nanoscale detector that checks for and reports on the presence of hydrogen sulfide in crude oil and natural gas while they’re still in the ground. The nanoreporter is based on nanometer-sized carbon material developed by a consortium of Rice labs led by chemist James Tour, R&D’s 2013 Scientist of the Year.
Huntington's disease is a grim diagnosis. A hereditary disorder with debilitating physical and cognitive symptoms, the disease usually robs adult patients of their ability to walk, balance and speak. More than 15 years ago, researchers revealed the disorder's likely cause—an abnormal version of the protein huntingtin; however, the mutant protein's mechanism is poorly understood, and the disease remains untreatable.