The novel coronavirus pandemic has caused an increased demand for antimicrobial treatments that can keep surfaces clean, particularly in health care settings. Although some surfaces have been developed that can combat bacteria, what's been lacking is a surface that can also kill off viruses. Now, researchers have found a way to impart durable antiviral and antibacterial properties to an aluminum alloy used in hospitals, according to a report in ACS Biomaterials Science & Engineering.
The collection of oral bacteria in daily e-cigarette users' mouths is teeming with potent infection-causing organisms that put vapers at substantial risk for ailments ranging from gum disease to cancer, researchers found.
In living cells, enzymes drive biochemical metabolic processes. It is this very ability which allows them to be used as catalysts in biotechnology, for example to create chemical products such as pharmaceutics. Researchers at Münster University (Germany) identified an enzyme that, when illuminated with blue light, initiates a reaction that was previously unknown in enzymatics. The study was published in 'Nature Communications'.
As inevitable fellow travellers on the bodies of astronauts, spaceships, or equipment, terrestrial microorganisms will undoubtedly come into contact with extraterrestrial environments. Researchers from the Radboudumc describe in an article in Astrobiology that bacteria can survive on an 'extraterrestrial diet', which affected their pathogenic potential.
Despite conventional understanding that three Kai proteins are required for the circadian oscillation of cyanobacteria, scientists discovered that even when one of them is destroyed, the oscillation is not completely abolished but instead damped. Further, they found that the damped rhythms resonate with external cycles of approximately 24 hours, which indicates that the natural frequency of the damped oscillation is similar to a circadian clock.
Rice University scientists are analyzing the role of ferredoxin proteins produced when viral phages alter electron transfer in ocean-dwelling, photosynthetic bacteria that produce oxygen and store carbon.
Researchers publishing May 26 in the journal Cell Reports suggest that some of these 'good' bacteria residing in our guts, genital tracts, and skin also have a niche in our noses. They found that people with chronic nasal and sinus inflammation had fewer lactobacilli in their upper respiratory tract than healthy controls and were able to identify a specific strain of the bacteria that has evolved to better survive the oxygen-rich environment of the nose.
Medical University of South Carolina researchers investigated the effects of mutations altering the structure of an essential protein in an antibiotic-resistant strain of Neisseria gonorrhoeae. They report in the Journal of Biological Chemistry that the mutations do not simply block antibiotics from binding to the protein but lock the protein in a shape that reduces its ability to interact with drugs. The findings pave the way for developing new antimicrobials to treat gonorrhea.
Scientists have identified specific compounds from the Brazilian peppertree -- a weedy, invasive shrub in Florida -- that reduce the virulence of antibiotic-resistant staph bacteria. Scientific Reports published the research, demonstrating that triterpenoid acids in the red berries of the plant "disarm" dangerous staph bacteria by blocking its ability to produce toxins.
Without access to soap and clean water, more than 2 billion people in low- and middle-income nations -- a quarter of the world's population -- have a greater likelihood of acquiring and transmitting the coronavirus than those in wealthy countries. That's the conclusion of a new study by the Institute for Health Metrics and Evaluation at the University of Washington's School of Medicine.