From chemical graphs to structures
3D configurations of atoms dictate all materials properties. Quantitative predictions of accurate equilibrium structures, 3D coordinates of all atoms, from a chemical graph, a representation of the structural formula, is a challenging and computation.....»»
Cloud cover and urban structures drastically reduce sunlight in cities
Sunlight plays a crucial role in public health, affecting vitamin D synthesis and psychological well-being. Inadequate exposure to sunlight is associated with various adverse health outcomes, such as cardiovascular diseases, metabolic syndrome, depre.....»»
Discovering new energy levels in atomic hyperfine structures
Since the late 1960s, the Laboratoire Aimé Cotton (LAC) in Orsay, France, has made significant progress in the classification of complex atomic spectra. These advances have been driven both by the development of Fourier transform spectroscopy, and t.....»»
Research abounds at the International Space Station
At the International Space station, researchers are making strides in everything from Earth science to chemical properties. Here's what they're up to and why it matters......»»
AI tools help uncover enzyme mechanisms for lasso peptides
Lasso peptides are natural products made by bacteria. Their unusual lasso shape endows them with remarkable stability, protecting them from extreme conditions. In a new study, published in Nature Chemical Biology, researchers have constructed and tes.....»»
Researchers achieve aluminum molecular ring-based rotaxane and polyrotaxane
Rotaxanes have garnered interest for their unique structures consisting of mechanically interlocked axles and macrocycles. Numerous organic macrocycles have been employed to construct rotaxanes, including crown ether, cyclobis(paraquat-p-phenylene),.....»»
Antioxidant carbon dot nanozymes alleviate depression in rats by restoring the gut microbiome
Depression is a significant challenge to diagnose and treat. Among the factors influencing depression onset and severity, there is growing evidence for chemical imbalances that generate oxidative stress throughout the body. To address this problem, r.....»»
Harnessing nature"s rhythm: Piezocatalysis for organic pollutant degradation
With the rapid growth of industrial and agricultural activities, water bodies are increasingly contaminated with harmful organic pollutants such as dyes, antibiotics, and bisphenol A. Traditional methods like adsorption, chemical treatments, and biol.....»»
Enhanced ion diffusion kinetics achieved through interpenetrated structures in electrochemical energy storage devices
As global demand for electrochemical electrodes continues to rise, a new trend has emerged, emphasizing the need to maintain ion diffusion efficiency while accommodating ultra-high loadings of active materials to enhance capacity and energy density......»»
A toxic chemical was blamed for killing thousands of Teesside crabs, but a study explains why pyridine isn"t the culprit
In October 2021, thousands of dead and dying crabs and lobsters washed up along 45 miles (70km) of coastline in north-east England. This mass-mortality event coincided with the redevelopment of one of the UK's largest ports at Teesside......»»
Greener pastures: Better ammonia production for a more sustainable future
Energy demands are at an all-time high, as is the need to be environmentally conscious. That's why chemical engineering professors Drs. Joseph Kwon and Mark Barteau have developed a strategy to predict the performance of new catalysts for greener amm.....»»
Synthetic mini-motor: Researchers convert chemical energy into rotational energy at the supramolecular level
Researchers at the Technical University of Munich (TUM) have developed an artificial motor at the supramolecular level that can develop impressive power. This wind-up motor is a tiny ribbon made of special molecules. When energy is applied, this ribb.....»»
Symmetry model sheds light on the chemistry surrounding peptide helices
Helices are structures found naturally in many important molecules, such as proteins. These helices possess a twist that depends on the arrangement of their basic components. By understanding how a helix is formed, we can gain deeper insights into ho.....»»
Gravity study gives insights into hidden features beneath lost ocean of Mars and rising Olympus Mons
Studies of gravity variations at Mars have revealed dense, large-scale structures hidden beneath the sediment layers of a lost ocean. The analysis, which combines models and data from multiple missions, also shows that active processes in the Martian.....»»
Study shows plant-derived secondary organic aerosols can act as mediators of plant-plant interactions
A study published in Science reveals that plant-derived secondary organic aerosols (SOAs) can act as mediators of plant-plant interactions. This research was conducted through the cooperation of chemical ecologists, plant ecophysiologists and atmosph.....»»
Making "atomic lasagna": New method transforms 3D materials into stable layered thin films with promising properties
A research team discovered a method to transform materials with three-dimensional atomic structures into nearly two-dimensional structures—a promising advancement in controlling their properties for chemical, quantum, and semiconducting application.....»»
New findings in a decade-long study of enzyme catalysis
Synthetic chemistry provides an essential material basis for our clothing, food, housing, transportation, and medicine and is an important driving force for economic development. However, traditional chemical synthesis has bottleneck problems such as.....»»
Researchers uncover new infection-fighting molecules through "molecular de-extinction"
A new study led by Cesar de la Fuente, Ph.D., Presidential Assistant Professor of Psychiatry, Microbiology, Chemistry, Chemical and Biomolecular Engineering, and Bioengineering at the University of Pennsylvania, has uncovered sequences for infection-.....»»
Chemical chameleon reveals novel pathway for separating rare-earth metals
Researchers at the Department of Energy's Oak Ridge National Laboratory have found a chemical "chameleon" that could improve the process used to purify rare-earth metals used in clean energy, medical and national security applications......»»
Zeolite catalyst method uses microwaves to convert waste cooking oil into useful chemicals
Researchers from Kyushu University have revealed that a zeolite material called Na-ZSM-5 is effective in improving the chemical conversion of biomass into olefins—a precursor chemical that makes everything from plastics to pharmaceuticals—using m.....»»
Zeolite catalyst method use microwaves to convert waste cooking oil into useful chemicals
Researchers from Kyushu University have revealed that a zeolite material called Na-ZSM-5 is effective in improving the chemical conversion of biomass into olefins—a precursor chemical that makes everything from plastics to pharmaceuticals—using m.....»»