Aggregation-induced catalysis: Asymmetric catalysis with chiral aggregates
Asymmetric synthesis and catalysis have been actively pursued in chemical and materials sciences for some time. Increasing numbers of drugs and pesticides contain chiral structural units in their structures since drug actions require conformational m.....»»
Study shows link between asymmetric polar ice sheet evolution and global climate
Joint research led by Professor An Zhisheng from the Institute of Earth Environment of the Chinese Academy of Sciences has revealed the pivotal role of the growth of the Antarctic ice sheet and associated Southern Hemisphere sea ice expansion in trig.....»»
New research shows how global warming is messing with our rainfall
The past century of human-induced warming has increased rainfall variability over 75% of the Earth's land area—particularly over Australia, Europe and eastern North America, new research shows......»»
Exploring cadmium-induced alterations in the expression profile of microRNAs
Cadmium (Cd), a toxic heavy metal, has been identified as a significant environmental pollutant due to its widespread industrial use and persistence in the environment. Chronic exposure to Cd poses a considerable threat to human health, as it accumul.....»»
Increasingly erratic rainfall patterns over the past century are likely due to human-induced climate change, study shows
Rainfall fluctuates more vigorously. Why? Scientists say it's because of us. Many people around the world have noticed that rainfall is becoming increasingly erratic. Intense downpours are occurring more frequently, while dry periods seem to last lon.....»»
Research team overcomes heteroatom constraints via cobalt catalysis
Professor Fu Yao and Associate Professor Lu Xi from the University of Science and Technology of China (USTC) have conducted a cobalt-hydride-catalyzed enantioselective hydroalkylation, enabling the efficient construction of chiral tertiary carbon cen.....»»
The Highly Infectious FLiRT Variants Behind the Summer Covid Wave
The latest dominant Covid variants have stronger infectiousness than their predecessors and the ability to evade vaccine-induced antibodies......»»
Innovative microscopy reveals amyloid architecture, may give insights into neurodegenerative disease
Amyloid-beta (A-beta) aggregates are tangles of proteins most notably associated with neurodegenerative diseases such as Alzheimer's. Despite its constant stint in the limelight, however, researchers have been unable to get a good understanding of ho.....»»
New method for simultaneous high-resolution measurement of chiral molecules
Researchers have developed a new method for precisely analyzing molecules' chirality. This method, known as cavity-enhanced chiral eigenmode (CECEM) spectroscopy, offers several advantages over existing techniques, including the ability to simultaneo.....»»
New experiment investigates light-induced Meissner effect in optically driven superconductor
Superconductivity is a fascinating phenomenon, which allows a material to sustain an electrical current without any loss. This collective quantum behavior of matter only appears in certain conductors at temperatures far below ambient......»»
Moving from the visible to the infrared: Developing high quality nanocrystals
Awarded the 2023 Nobel Prize in Chemistry, quantum dots have a wide variety of applications ranging from displays and LED lights to chemical reaction catalysis and bioimaging. These semiconductor nanocrystals are so small—on the order of nanometers.....»»
Super-resolution machining of single crystalline sapphire by femtosecond laser-induced, plasma-assisted ablation
A new study in Opto-Electronic Advances discusses super-resolution machining of single crystalline sapphire by GHz burst mode femtosecond laser-induced plasma assisted ablation......»»
Photoenzymatic synthesis achieves efficient oxidation of fatty acids
A research team designed and built a photoenzymatic cascade by combining photochemical water oxidation/O2 reduction with P450 peroxygenase catalysis to achieve efficient visible-light-driven oxidation of a range of fatty acids (C12-C20), leading to p.....»»
Features of H5N1 influenza viruses in dairy cows may facilitate infection, transmission in mammals
A series of experiments with highly pathogenic H5N1 avian influenza (HPAI H5N1) viruses circulating in infected U.S. dairy cattle found that viruses derived from lactating dairy cattle induced severe disease in mice and ferrets when administered via.....»»
Researchers reveal how plants protect themselves from viral infection by regulating deacetylation
In a paper published in Science Bulletin, a team of Chinese scientists demonstrated that TaSRT2 recognized viral protein P153 and induced wheat resistance to CWMV through inhibition of the TaSRT2-mediated deacetylation of H3K9ac and H3K79ac, which ev.....»»
Controlling magnetism with polarized light: Non-thermal pathway uses inverse Faraday effect
Intense laser pulses can be used to manipulate or even switch the magnetization orientation of a material on extremely short time scales. Typically, such effects are thermally induced, as the absorbed laser energy heats up the material very rapidly,.....»»
3D covalent organic frameworks with zyg topology for photocatalytic synthesis of hydrogen peroxide
A research team proposed a new synthetic strategy of COFs based on a new topology that remotely separates donor (D) and acceptor (A) units in 3D lattice to produce the expected metastable photo-induced charge-separated states......»»
Researchers discover photo-induced charge-transfer complex between amine and imide
A research team led by Prof. Zhang Guoqing from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) has discovered a highly reactive photo-induced charge-transfer complex (PCTC) between amine and imide. T.....»»
Report: Apple developing new way to make iPhone batteries easier to replace
As legislation in the European Union looms, Apple is reportedly developing a new technology that would make iPhone batteries more replaceable. As reported by The Information, Apple is investigating using a new “electrically induced adhesive debondi.....»»
Synthesis method for 1D segmented heteronanostructures uses stress-induced axial ordering
One-dimensional segmented heteronanostructures (1D-SHs) are promising candidates in fields such as photoelectrocatalysis (PEC) and thermoelectrics. Currently, the synthesis of 1D-SHs mainly focuses on sulfides and selenides, with relatively less rese.....»»
‘I really thought I was going to prison’: Woman convicted of killing man during marijuana-induced psychosis speaks out
‘I really thought I was going to prison’: Woman convicted of killing man during marijuana-induced psychosis speaks out.....»»