Latest Articles
-
Oct- 2021 -4 OctoberScience
Antimicrobial Coating for Orthopedic Implants Prevents Dangerous Bacterial Infections
After mixing self-assembling polymers with antibiotics, the infection-preventing coating is sprayed on to human intramedullary hip implants with a simple perfume bottle. Credit: Segura Laboratory and Bertha Laboratory Customizable to individual patients and requiring less than 10 minutes to prepare and use, new surgical implant coating prevented 100% of infections in mice. Biomedical engineers and surgeons at Duke University and UCLA have demonstrated an antibiotic coating that can be applied to orthopedic implants minutes before surgery that eliminates the chances of an infection around the implant. In early trials in mice, the coating prevented all subsequent infections, even without infusions…
Read More » -
4 OctoberSpace
Scientists Uncover the Mystery of Early Massive Galaxies That Strangely Ran Out of Fuel
This composite image of galaxy cluster MACSJ 0138 shows data from the Atacama Large Millimeter/submillimeter Array (ALMA) and NASA’s Hubble Space Telescope. The magnified section shows a bright orange/red dot, which traces cold dust observed in radio using ALMA. This cold dust helps scientists to understand, by inference, the amount of cold hydrogen gas—required for the formation of stars—present in the galaxies in the cluster. Credit: ALMA (ESO/NAOJ/NRAO)/S. Dagnello (NRAO), STScI, K. Whitaker et al. New study reveals that early galaxies have no fuel, and something is stopping them from refilling the tank. Early massive galaxies—those that formed in the…
Read More » -
4 OctoberScience
Scientists Discover New Method From Nature for Installing Sulphur Into Complex Molecules
Lead image: Scientists working in the lab of Ben Shen, PhD, at Scripps Research, Florida have found a new family of sulfur-installing enzymes by mining the genomes of bacteria in their microbial strain collection. Credit: Scott Wiseman for Scripps Research Advance provides new tools for synthetic chemists and biologists looking to probe and modify sulfur-based biochemistry. A group of highly reactive compounds called persulfides have provoked great curiosity among biochemists, because of their role in nature, and how they interact with proteins to change their structure and function, affecting health, aging, and disease processes. Studying persulfides and their effects has…
Read More » -
4 OctoberSpace
New research finds first clear detection of circumplanetary disk surrounding an exoplanet
Lead image: zoomed out and close-up views of PDS 70c’s moon-forming disc as seen with ALMA. The bright colouring surrounding PDS 70c is dust in the planet’s CPD Credit: ALMA (ESO/NAOJ/NRAO)/Benisty et al. In recently published research using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers announced that they had found the first clear detection of a circumplanetary, moon-forming disk surrounding the exoplanet PDS 70c — a first in astrophysics. The circumplanetary disk, or CPD, has been seen in past research from other groups. However, due to the inability to tell the disk apart from its surrounding environment, the presence of…
Read More » -
4 OctoberCOVID-19
Researchers Discover Evidence of a Major Coronavirus Epidemic 20,000 Years Ago
Studying the genomes of modern humans from 26 worldwide populations, researchers discovered the genetic “footprint” of an ancient coronavirus outbreak. Studies like this one could help identify viruses that have caused epidemics in the distant past and may do so in the future. A new study co-authored by a University of Arizona researcher has discovered a coronavirus epidemic broke out in the East Asia region more than 20,000 years ago, with traces of the outbreak evident in the genetic makeup of people from that area. In a paper published in Current Biology, researchers analyzed the genomes of more than 2,500 modern humans…
Read More »
