An ocean-dwelling bacterium has provided fresh insights into how cells protect themselves from the toxic effects of metal ions such as iron and copper. Although essential to life, metal ions can also generate reactive oxygen species (ROS) -- highly reactive molecules that damage cells as they try to form bonds with other molecules. In humans, reactive oxygen species are linked to aging and also to diseases such as cancers.
Researchers have discovered a simple new tweak that could double the efficiency of organic electronics. OLED-displays, plastic-based solar cells and bioelectronics are just some of the technologies that could benefit from their new discovery, which deals with 'double-doped' polymers.
A new theoretical framework predicts the kinds of holes that can form in two-dimensional materials like graphene. The work could help in the design of new filtration and desalination devices or new quantum computing and communications systems.
New study has found that the properties of a material commonly used to create conductive or protective films and encapsulate drug compounds -- and the conditions in which this material will disassemble to release that medication -- may be different than initially thought.
Scientists have studied host-guest interactions in vanadate clusters. V12 is a spherical bowl that hosts small molecules in its interior. The team created empty (guest-free) V12 for the first time. One of the 12 units of VO5 was found to flip inwards to fill the void vacated by the guest. Empty V12 could absorb CO2 but rejected CO, offering a way to separate these molecules for CO2 capture.
Around 30 percent of the world's biosolids are stockpiled or sent to landfill each year, while over 3 billion cubic meters of clay soil is dug up for the global brickmaking industry. Using biosolids in bricks offers an innovative solution to these environmental challenges.
Organic polymers can nowadays be found in solar cells, sensors, LEDs and in many other technical applications. One specific type of polymers - known as S-PPVs - were previously regarded as promising in theory but were almost impossible to produce from a technical perspective. After many years of work, a team has now managed to identify a new chemical synthesis process for the production of S-PPVs.
New research on the United States' most economically important agricultural plant -- corn -- has revealed a different internal structure of the plant than previously thought, which can help optimize how corn is converted into ethanol.
Micropores in fabricated tissues such as bone and cartilage allow nutrient and oxygen diffusion into the core, and this novel approach may eventually allow lab-grown tissue to contain blood vessels, according to researchers.
There is a considerable risk that plastic waste in the environment releases nano-sized particles known as nanoplastics, according to a new study. The researchers studied what happened when takeaway coffee cup lids, for example, were subjected to mechanical breakdown, in an effort to mimic the degradation that happens to plastic in the ocean.
Researchers have come up with a new way to create ammonia from nitrogen and water at low temperature and low pressure. They've done it successfully so far in a laboratory without using hydrogen or the solid metal catalyst necessary in traditional processes.
Engineers have created a bacteria-filtering membrane using graphene oxide and bacterial nanocellulose. It's highly efficient, long-lasting and environmentally friendly -- and could provide clean water for those in need.
Researchers have developed a way to dramatically enhance the sensitivity of nuclear magnetic resonance spectroscopy (NMR), a technique used to study the structure and composition of many kinds of molecules, including proteins linked to Alzheimer's and other diseases.