Mechanism of cobalt–manganese catalysts deciphered
Conventional catalysts for hydrogen production via water electrolysis usually contain precious metals and are expensive. However, cheaper alternatives have been developed, for example cobalt–manganese catalysts. They have a high activity and are st.....»»
Battling persistence in tuberculosis bacteria
Researchers at the Indian Institute of Science (IISc), in collaboration with NCBS and InStem, have uncovered an important mechanism that allows the tuberculosis (TB) bacterium to persist in the human host for decades. They found that a single gene in.....»»
"Goldilocks system" boosts efficiency of nickel-catalyzed reactions
In the search for cheaper, greener alternatives to routinely used precious metal catalysts like palladium, nickel has become an increasingly popular choice in the last two decades for organic chemists assembling fragments of molecules for a variety o.....»»
Unveiling the role of autophagy in metabolism and growth for tomato fruit development
Autophagy, a eukaryotic mechanism for breaking down cellular components, is a vital process in lytic organelles such as vacuoles in yeast and plants, and lysosomes in animals. Research has predominantly focused on the model plant Arabidopsis, reveali.....»»
Viral enhancement of nanomaterial cancer sensor improves early detection
Researchers from SUTD have developed an advanced system of breast cancer cell detection with improved speed and sensitivity, using a viral mechanism to enhance the tool's sensing accuracy......»»
First discovery of carbon-based cave art in France"s Dordogne region could pave way for precise radiocarbon dating
The Dordogne region of southern France is home to over 200 caves decorated with colorful Paleolithic art, but little is known about how old it is. Due to its coloration with iron- or manganese-oxide-based material, radiocarbon dating of the art has n.....»»
Green hydrogen: Improving the stability of iridium catalysts with titanium oxides
Anodes for the electrolytic splitting of water are usually iridium-based materials. In order to increase the stability of the iridium catalyst, a team at HZB and a group at HI-ERN have now produced a so-called material library: a sample in which the.....»»
Researchers develop chiral boryl radical catalysts in asymmetric catalysis
Researchers from the University of Science and Technology of China of the Chinese Academy of Sciences, and collaborators, have developed an innovative chiral boryl radical catalysis method, enabling asymmetric catalytic radical cycloisomerization rea.....»»
A mechanism of pressure-induced glass phase transition leading to advanced phase-change memories
When temperature or pressure is applied to a material, its state changes from liquid to solid or remains solid but exhibits structural changes. This change is called a phase transition or change......»»
Researchers discover a mechanism that controls the identity of stem cells
Researchers at the University of California, Irvine, discovered a mechanism that controls the identity of stem cells. When this mechanism fails, embryonic stem cells revert back in time and become totipotent......»»
A catalyst for electronically controlled C–H functionalization
The Chirik Group at the Princeton Department of Chemistry is chipping away at one of the great challenges of metal-catalyzed C–H functionalization with a new method that uses a cobalt catalyst to differentiate between bonds in fluoroarenes, functio.....»»
Engineers develop a way to determine how the surfaces of materials behave
Designing new compounds or alloys whose surfaces can be used as catalysts in chemical reactions can be a complex process relying heavily on the intuition of experienced chemists. A team of researchers at MIT has devised a new approach using machine l.....»»
Study identifies key ingredient for affordable fuel cell catalysts
To make fuel cells more affordable, researchers have spent decades searching for low-cost catalysts to replace platinum and other expensive metals......»»
Capital, canaries, or catalysts: Insurance industry"s role in tackling climate change risks
Throughout the 19th and 20th centuries, canaries were used in coal mines to assess the risk of toxic gases. If the birds became ill or passed away, their fate served as a warning for miners to vacate the premises......»»
A sun protection mechanism helps plants to survive
Just as people can get sunburned, plants can also suffer from too much sunlight. To stay healthy, they use an internal "sun protection mechanism." Pierrick Bru, a Ph.D. student working with Alizée Malnoë at Umeå Plant Science Centre and Umeå Univ.....»»
A theoretical approach to ferroelectricity in hafnia-related materials
Hafnia ferroelectrics are based on their technical promise and remarkable behaviors, where the peculiarities stem from an active extrinsic mechanism that contributes to their properties from a growing number of new intrinsic features......»»
Laser-induced hydrothermal growth for electrocatalytic applications
In the new study published in the journal International Journal of Extreme Manufacturing on 1 November 2023, researchers from the UK and China reported a novel technique based on a laser-induced hydrothermal reaction (LIHR) mechanism for the growth o.....»»
Research reveals clever dosage control mechanism of biallelic genes
Have you ever wondered why we carry two copies of each chromosome in all of our cells? During reproduction, we receive one from each of our parents. This means that we also receive two copies, or alleles, of each gene—one allele per chromosome or p.....»»
Plants found to recruit distinct chemical activities of coumarins under different soil pHs
Plants have two main uptake mechanisms to obtain iron (Fe) from the soils. The type of strategy employed depends on the botanical classification of the plant. In the so-called strategy-I mechanism, plants must first reduce the trivalent iron (Fe3+) i.....»»
Research unveils nickel-based catalysts with remarkable economic feasibility
In a development set to transform the chemical industry on a global scale, Professor Chang Ho Yoo in the Department of Chemistry at UNIST has successfully developed a highly efficient and stable carbonylation catalytic reaction using nickel catalysts.....»»
Study show extracellular vesicles can also deliver messages from non-human cells
Messenger bubbles produced by human cells can pick up bacterial products and deliver them to other cells, University of Connecticut researchers report in the Nov. 16 issue of Nature Cell Biology. The discovery may explain a key mechanism by which ba.....»»