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ScienceDaily: Matter & Energy News |
| Water treatment: Removing hormones with sunlight Posted: 21 May 2021 08:53 AM PDT Micropollutants such as steroid hormones contaminate drinking water worldwide. Until now, easily scalable water treatment technologies that remove them efficiently and sustainably have been lacking. Scientists have developed a new chemical process for removing hormones. It takes advantage of the mechanisms of photocatalysis and transforms the pollutants into potentially safe oxidation products. |
| Nanoparticles: The complex rhythm of chemistry Posted: 21 May 2021 07:18 AM PDT In order to understand catalysts, we have to understand how chemical reactions evolve on nanoparticles. Different facets of the particles can have different properties, leading to intriguing 'chemical waves'. |
| A new form of carbon opens door to nanosized wires Posted: 20 May 2021 11:53 AM PDT A new allotrope of carbon has been produced. Like graphene, it is only one atom thick, but unlike graphene it behaves like a metal even at small scales, ideal for nanosized wires. This result is exciting for engineers trying to develop new carbon-based electronics and the new method demonstrates a novel way to produce other theoretically-designed but not-yet-created forms of nanoscale carbon materials. |
| Solid-state batteries line up for better performance Posted: 20 May 2021 10:37 AM PDT Solid-state batteries pack a lot of energy into a small space, but their electrodes are not good at keeping in touch with their electrolytes. Liquid electrolytes reach every nook and cranny of an electrode to spark energy, but liquids take up space without storing energy and fail over time. Researchers are now putting solid electrolytes in touch with electrodes made of strategically arranged materials - at the atomic level - and the results are helping drive better solid-state battery technologies. |
| Liquid-like motion in crystals could explain their promising behavior in solar cells Posted: 19 May 2021 09:08 AM PDT Scientists studied the inner workings of a solar cell material using X-ray and neutron scattering. The study revealed that liquid-like motion in the material may be responsible for their high efficiency in producing electric currents from solar energy. |
| New research could help manufacturers avoid 3D-printing pitfall Posted: 19 May 2021 09:08 AM PDT New research suggests that a common approach for reducing stress in printed metal is not the cure-all some may have hoped it was, but the results could also potentially help manufacturers sidestep the issue altogether. |
| Scientists take a bite out of solar efficiency challenge with sandwich model Posted: 19 May 2021 09:07 AM PDT Research has revealed the structure of 2D perovskite thin films resembles a sandwich containing layers beneficial for generating electricity more efficiently in photovoltaics. |
| COVID-19 testing method gives results within one second, researchers report Posted: 18 May 2021 10:08 AM PDT Researchers report a rapid and sensitive testing method for COVID-19 biomarkers that amplifies the binding signal for a target biomarker and provides detection within one second. |
| Nanofiber filter captures almost 100 percent of coronavirus aerosols in experiment Posted: 18 May 2021 10:07 AM PDT A filter made from polymer nanothreads blew three kinds of commercial masks out of the water by capturing 99.9 percent of coronavirus aerosols in an experiment. The study compared the effectiveness of surgical and cotton masks, a neck gaiter, and electrospun nanofiber membranes. The cotton mask and neck gaiter only removed about 45 percent to 73 percent of the aerosols. The surgical mask did much better, removing 98 percent of coronavirus aerosols. But the nanofiber filter removed almost all. |
| Portable, affordable, accurate, fast: Team invents new COVID-19 test Posted: 18 May 2021 08:48 AM PDT A new coronavirus test can get accurate results from a saliva sample in less than 30 minutes, researchers report. Many of the components of the hand-held device used in this technology can be 3D-printed, and the test can detect as little as one viral particle per 1-microliter drop of fluid. |
| How x-rays could make reliable, rapid COVID-19 tests a reality Posted: 18 May 2021 08:42 AM PDT Vaccines are turning the tide in the pandemic, but the risk of infection is still present. Instant at-home tests would help us return to normal, but current options aren't very accurate. A new discovery could help get reliable tests on the market. |
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