Rocks on floor of Jezero Crater, Mars, show signs of sustained interactions with water
Since the Perseverance rover landed in Jezero crater on Mars in February, the rover and its team of scientists back on Earth have been hard at work exploring the floor of the crater that once held an ancient lake. Perseverance and the Mars 2020 mission are looking for signs of ancient life on Mars and […]
Breakup of a single chemical bond measured
The team used a high-resolution atomic force microscope (AFM) operating in a controlled environment at Princeton’s Imaging and Analysis Center. The AFM probe, whose tip ends in a single copper atom, was moved gradually closer to the iron-carbon bond until it was ruptured. The researchers measured the mechanical forces applied at the moment of breakage, […]
Unprecedented view of a single catalyst nanoparticle at work: X-rays reveal compositional changes on active surface under reaction conditions
A DESY-led research team has been using high-intensity X-rays to observe a single catalyst nanoparticle at work. The experiment has revealed for the first time how the chemical composition of the surface of an individual nanoparticle changes under reaction conditions, making it more active. The team led by DESY’s Andreas Stierle is presenting its findings […]
Lab grown tumor models could improve treatment for pancreatic cancer
An international team of scientists have created a three-dimensional (3D) pancreatic cancer tumour model in the laboratory, combining a bioengineered matrix and patient-derived cells that could be used to develop and test targeted treatments. In a new study published today in Nature Communications, researchers from the University of Nottingham, Queen Mary University of London, Monash […]
Systems approach helps assess public health impacts of changing climate, environmental policies
A team co-led by a Washington State University scientist offers an alternative way to understand and minimize health impacts from human-caused changes to the climate and environment in a new study published in the journal One Earth. Based at WSU Vancouver, lead author Deepti Singh, assistant professor in the School of the Environment, drew on […]
The mystery of the flexible shell
An international research team with participation of the Paul Scherrer Institute PSI has revealed a secret about a marine animal’s shell: The researchers have deciphered why the protective cover of the brachiopod Discinisca tenuis becomes extremely soft in water and gets hard again in the air. The study appears today in the journal Nature Communications. […]
How confined protons migrate
The results described by the team of the Bochum Excellence Cluster Ruhr Explores Solvation, RESOLV for short, together with colleagues of the sister research network CALSOLV in Berkeley were published in the journal Angewandte Chemie on September 3rd, 2021. The reviewers rated the results as a Highlight Paper (Top 10%). Protons (H+) and hydronium ions […]
Novel mechanism links genetic defect in IBD patients to gut leakiness: Study in mice and human tissue is the first to show how a disease mutation weakens barrier properties of epithelial cells lining the gut
A team of researchers led by a biomedical scientist at the University of California, Riverside, has identified a novel mechanism by which loss-of-function mutations in the gene PTPN2, found in many patients with inflammatory bowel disease, or IBD, affect how intestinal epithelial cells maintain a barrier. The intestinal epithelium, a single layer of cells, plays […]
Men and women of Roman Herculaneum had different diets, new research shows
Researchers — led by the University of York’s BioArCh team — developed a new approach to analyse amino acids, the building blocks of proteins, from 17 adult skeletons found in the aftermath of the eruption of Vesuvius in 79 AD. By measuring the isotopes of carbon and nitrogen in the bone amino acids, the researchers […]
Large genetic analysis identifies numerous gene variants linked with differences in food intake
A team of researchers at Massachusetts General Hospital (MGH), Boston University School of Public Health (BUSPH), and other institutions have identified more than two dozen genetic regions that may affect individuals’ food intake. The investigators hope that the discovery, which is described in Nature Human Behaviour, will point to new treatment strategies to curb the […]