Composite membranes for CO2 separation contain different functional layers in their structure (e.g. porous mechanical support, selective layer etc.). We found that when selective layer in composite membrane is made ultimately thin - it forms specific interface with supporting gutter polymer, and this structure shows unexpectedly high selectivity towards CO2 over nitrogen. This new finding provides the way to develop better membranes for CO2 capture.
Given higher sea levels and softer soil in the wake of a shifting climate, Sesarma crabs, which have already decimated salt marshes in the Northeast, are now rising to prominence in southeastern marshes, a new study finds.
The through-and-through greenness of hundreds of frog species that can be found deep in their lymphatic fluid, soft tissues and even bones, comes from a clever biochemical workaround that combines a normally virus-fighting type of protein with a toxic byproduct of blood breakdown. The camouflage innovation has happened at least 40 times across 11 families of frog and toad.
University of Rochester researchers use sunlight and a laser-etched metal surface to evaporate and purify water for safe drinking at greater than 100 percent efficiency, as described in a paper in Nature Sustainability. "This is a simple, durable, inexpensive way to address the global water crisis, especially in developing nations," says Chunlei Guo, professor optics. It also could help relieve water shortages in drought-stricken areas and be helpful in water desalinization projects.
The world can expect more rainfall as the climate changes, but it can also expect more water to evaporate, complicating efforts to manage reservoirs and irrigate crops in a growing world, according to a Clemson researcher whose latest work has been published in the journal Nature Communications.
Using smaller and less expensive versions of the same specialist equipment found in state-of-the-art microbiology laboratories, a new 'lab in a suitcase' developed by academics at Newcastle University,UK, and believed to be a world first, enables screening of millions of bacteria in a single water sample. The kit has already been used to analyse samples from the Akaki rive, Ethiopia, where pathogens were found that can cause diarrhoea - still a leading cause of death among children under the age of five.
Emerging genome data provides new insight into plastid evolution.
The history of human and cat relationships began 10,000 years ago. Its origins, however, still remain a mystery mainly due to scarcity of research material. Gaps in our knowledge in the subject are successfully filled by a group of researchers from the Nicolaus Copernicus University in Toru?. Dr Magdalena Krajcarz has made an attempt to find ancestors of domestic cats in Neolithic Central Europe. An article discussing the topic has recently been published in PNAS.
Scientists have discovered that the microbiota of each individual determines the maintenance of antibiotic resistant bacteria in the gut: whereas in some individuals resistant bacteria are quickly eliminated, in others they are not. The study now published in Nature Ecology and Evolution highlights the need to implement more personalized therapies and brings new perspectives to the paradigm of the evolution of antibiotic-resistant bacteria in the gut.
Multi-university effort develops solar energy storage to enable decentralized electrification systems in remote areas.