Many people rely on contact lenses to improve their vision. But these sight-correcting devices don't last forever and they are eventually disposed of in various ways. Now, scientists are reporting that throwing these lenses down the drain at the end of their use could be contributing to microplastic pollution in waterways. The researchers will present their results today at the 256th National Meeting & Exposition of the American Chemical Society.
In remote areas of the world, everyday items like electrical outlets and batteries are luxuries. Health care workers in these areas often lack electricity to power diagnostic devices, and commercial batteries may be too expensive. Today, researchers report a new type of battery -- made of paper and fueled by bacteria -- that could overcome these challenges. The researchers will present their results at the 256th National Meeting & Exposition of the American Chemical Society.
The life-threatening bacteria MRSA can cripple a medical facility since it is resistant to treatment. But scientists report that they are now making advances in a new technique that avoids antibiotics, instead using light to activate oxygen, which wipes out bacteria. The method also could be used to treat other microbial infections, and possibly even cancer. The researchers will present their results today at the 256th National Meeting & Exposition of the American Chemical Society.
A team led by researchers at Princeton University have made a finding that could help usher in new area of technology called 'valleytronics.' The study found that electrons in bismuth crystals prefer to collect in one valley rather than being distributed equally across valleys, setting up a type of electricity known as ferroelectricity.
In 2008, a contaminant eluded the quality safeguards in the pharmaceutical industry and infiltrated a large portion of the supply of the popular blood thinner heparin, sickening hundreds and killing about 100 in the US.
With inspiration from squid ring teeth, a multidisciplinary team led by UVA engineers has invented a novel way to manufacture smart materials, including fabrics, that can regulate their own thermal properties.
In a first-in-humans pilot study, researchers have identified a sentinel area of the brain that may give an early warning before clinical seizure manifestations from focal epilepsy appear. They have also validated an algorithm that can automatically detect that early warning. These two findings offer the possibility of squelching a focal epilepsy seizure -- before the patient feels any symptoms -- through neurostimulation of the sentinel area of the brain.
Formation of new blood vessels, a process also known as angiogenesis, is one of the major clinical challenges in wound healing and tissue implants. To address this issue, researchers from Texas A&M University have developed a clay-based platform to deliver therapeutic proteins to the body to assist with the formation of blood vessels.
A team of scientists using the highest-frequency capabilities of the Atacama Large Millimeter/submillimeter Array (ALMA) has uncovered jets of warm water vapor streaming away from a newly forming star. The researchers also detected the 'fingerprints' of an astonishing assortment of molecules near this stellar nursery.
A few little cells that are different from the rest can have a big effect. For example, individual cancer cells may be resistant to a specific chemotherapy -- causing a relapse in a patient who would otherwise be cured. In the journal Angewandte Chemie, scientists have now introduced a microfluidics-based chip for the manipulation and subsequent nucleic-acid analysis of individual cells. The technique uses local electric fields to highly efficiently 'trap' the cells (dielectrophoresis).