Scientists at Northwestern University in Evanston, Illinois have developed a hydrogel integrated with zirconium-based robust metal-organic frameworks (MOFs) that rapidly degrades organophosphate-based nerve agents used in chemical warfare. Unlike existing powdered MOF adsorbents, this hydrogel composite does not require added water and may be easily scaled up for use in protective masks or clothing. The work appears July 14 in the journal Chem Catalysis.
A recent collaboration between scientists in Michigan and Massachusetts as well as South Korea resulted in the development of a novel and broadly applicable molecular assay that used a model fungus to investigate how plant fungal pathogens circumvent the bioactivity of SDHIs. Through this analysis, they were able to successfully validate known mechanisms of fungicide resistance in several agriculturally important fungal pathogens.
Chemokine receptors, located at the surface of many immune cells, play an important role in their function. However, despite the importance of this family of receptors, their activation mechanism remains poorly understood. A research consortium (UNIGE/UNIBAS/PSI) has succeeded in decoding the activation mechanism of the CCR5 receptor, a member of this family implicated in several diseases such as HIV/AIDS, cancer, and the respiratory complications of COVID-19.
Pesticides safeguard agricultural yields by controlling insects, fungi, and weeds. However, they also enter streams and damage the aquatic communities. In a nationwide monitoring program, scientists led by the Helmholtz Centre for Environmental Research have shown that the governmental thresholds for pesticides are too high and that these levels are still exceeded in over 80% of water bodies. The loss of biodiversity can only be halted if the environmental risk assessment of pesticides is revised.
New sensors developed by Professor Otto Gregory, of the College of Engineering at the University of Rhode Island, and chemical engineering doctoral student Peter Ricci, are so powerful that they can detect threats at the molecular level.
A team of researchers from the Max Planck Institute for Chemical Ecology in Jena, Germany, demonstrates how the horseradish flea beetle regulates the accumulation of mustard oil glucosides in its body. The beetles have special transporters in the excretory system that prevent the excretion of mustard oil glucosides. This mechanism enables the insect to accumulate high amounts of the plant toxins in its body, which it uses for its own defense.
Skid marks left by cars are often analyzed for their impression patterns, but they often don't provide enough information to identify a specific vehicle. UCF Chemistry Associate Professor Matthieu Baudelet and his forensics team at the National Center for Forensic Science, which was established at UCF in 1997, may have just unlocked a new way to collect evidence from those skid marks.
A new study by five doctoral students in neuroscience at the University of Minnesota Medical School calls attention to a lack of regulation and unknown long-term health effects of tear gas. Based on their research, the group recommends changing the protocols around the use of tear gas as a crowd control measure at both the local and national level.
A new study performed in human lung airway cells is one of the first to show a potential link between exposure to organophosphate pesticides and increased susceptibility to COVID-19 infection. The findings could have implications for veterans, many of whom were exposed to organophosphate pesticides during wartime.
From engineered pandemics to city-toppling cyber attacks to nuclear annihilation, life on Earth could radically change, and soon. Scientists will forecast the fate of the planet at a press conference during the 2021 APS April Meeting.