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a new map for a birthplace of stars A New Map for a Birthplace of Stars
ASTRO WATCH A Yale-led research group has created the most detailed maps yet of a vast seedbed of stars similar to Earth’s... 1 day
alma finds most distant oxygen in the universe ALMA Finds Most-Distant Oxygen in the Universe
ASTRO WATCH Not long after the Big Bang, the first generations of stars began altering the chemical make-up of primitive galaxies, slowly enriching the... 1 day
How immune cells kill bacteria with acid
SCIENCE DAILY The first line of immune defense against invading pathogens like bacteria are macrophages, immune cells that engulf every foreign object that crosses their way and kill their prey with acid. However, it is not... 2 days
Immune cell provides cradle for mammary stem cells
SCIENCE DAILY Researchers have made new discoveries about how an immune cell known as the macrophage, which normally fights infection by swallowing foreign invaders, nurtures mammary gland stem cells through a chemical signaling molecule.... 2 days
Battling bubbles: How plants protect themselves from killer fungus
SCIENCE DAILY In the battle between plants and pathogens, molecules called small RNAs are coveted weapons used by both invaders and defenders. Researchers report how plants package and deliver the sRNAs they... 2 days
Microglia are key defenders against prion diseases
SCIENCE DAILY Prion diseases are slow degenerative brain diseases that occur in people and various other mammals. No vaccines or treatments are available, and these diseases are almost always fatal. Scientists have found little evidence of... 2 days
Conformational ensembles of RNA oligonucleotides from integrating NMR and molecular simulations
Science Magazine RNA molecules are key players in numerous cellular processes and are characterized by a complex relationship between structure, dynamics, and function. Despite their apparent simplicity, RNA... 2 days
E. coli tailored to convert plants into renewable chemicals
SCIENCE DAILY Jet fuel, pantyhose and plastic soda bottles: all three could be made from bioengineered bacteria. 2 days
Improving survival in pancreatic cancer with platinum-based chemotherapy
SCIENCE DAILY A small study of adults with the most common form of pancreatic cancer adds to evidence that patients with BRCA1 or BRCA2 gene mutations long linked to a high risk of breast... 2 days
A lipid 'trap' inside cells reduces drug effectiveness
PHYS.ORG Cellular lipids are more efficient than proteins in trapping most drugs and hence reducing the free intracellular drug concentration. This is shown by researchers at Uppsala University in an article published in... 2 days
Chemist begins new project to develop carbohydrate mimics to assist cancer therapies
NEWS MEDICAL Dr. Robert Britton firmly believes every molecule is important. This chemist doesn't want any molecule sitting unused on a laboratory shelf or in a... 2 days
New catalyst upgrades greenhouse gas into renewable hydrocarbons
SCIENCE DAILY Engineers have designed a most efficient and stable process for converting climate-warming carbon dioxide into a key chemical building block for plastics -- all powered using renewable electricity. 3 days
Photosynthesis involves a protein 'piston'
SCIENCE DAILY The photosystem I (PSI)-ferrodoxin (Fd) complex is important in electron transfer during photosynthesis, through which plants convert sunlight, carbon dioxide, and water into complex chemicals and oxygen. Scientists have recently crystallized the PSI-Fd complex for the first time.... 3 days
Materials scientists develop new forming technology: Processing glass like a polymer
SCIENCE DAILY Pure quartz glass is highly transparent and resistant to thermal, physical, and chemical impacts. These are optimum prerequisites for use in optics, data technology or medical... 3 days
Faster test for cannabis quality
SCIENCE DAILY Researchers have developed a new method of measuring phytocannabinoids -- the primary bioactive molecules in cannabis -- that will lead to faster, safer and more accurate information for producers, regulators and consumers alike. 3 days
The ultrafast dance of liquid water
SCIENCE DAILY Typically we consider that water molecules in the liquid state move randomly on ultrafast timescales due to thermal fluctuations. Now, scientists have discovered correlated motion in water dynamics on a sub-100 femtoseconds timescale. This appears as... 3 days
Old drug offers new hope for treatment of MND
NEWS MEDICAL An international study led by biochemists at the University of Liverpool has shown that the drug-molecule ebselen can correct many of the toxic characteristics of a protein that causes some... 3 days
Researchers tailor E. coli to convert plants into renewable chemicals
PHYS.ORG What does jet fuel have in common with pantyhose and plastic soda bottles? They're all products currently derived from petroleum. Sandia National Laboratories scientists have demonstrated a new... 3 days
Chemical storage of renewable energy
Science Magazine 3 days
Sharing chemistry with Maori students
Science Magazine 3 days
Wicked evolution: Can we address the sociobiological dilemma of pesticide resistance?
Science Magazine Resistance to insecticides and herbicides has cost billions of U.S. dollars in the agricultural sector and could result in millions of lives lost to insect-vectored diseases.... 3 days
Prospects for harnessing biocide resistance for bioremediation and detoxification
Science Magazine Prokaryotes in natural environments respond rapidly to high concentrations of chemicals and physical stresses. Exposure to anthropogenic toxic substances—such as oil, chlorinated solvents, or antibiotics—favors the evolution of resistant phenotypes,... 3 days
Hybrid molecular-colloidal liquid crystals
Science Magazine Order and fluidity often coexist, with examples ranging from biological membranes to liquid crystals, but the symmetry of these soft-matter systems is typically higher than that of the constituent building blocks. We dispersed micrometer-long inorganic colloidal rods in a nematic... 3 days
CO2 electroreduction to ethylene via hydroxide-mediated copper catalysis at an abrupt interface
Science Magazine Carbon dioxide (CO2) electroreduction could provide a useful source of ethylene, but low conversion efficiency, low production rates, and low catalyst stability limit current... 3 days
Battling bubbles: How plants protect themselves from killer fungus
PHYS.ORG In the battle between plants and pathogens, molecules called small RNAs are coveted weapons used by both invaders and defenders. 3 days
Functional films made of environmentally friendly clay minerals and dyes
SCIENCE DAILY Researchers have created a transparent hybrid film that combines natural clay minerals and dyes into a material that changes color in response to environmental humidity. The color change... 3 days
Pancreatic cancer patients with BRCA1 or BRCA2 mutations fare better on platinum-based chemotherapy
NEWS MEDICAL A small study of adults with the most common form of pancreatic cancer adds to evidence that patients with BRCA1 or BRCA2... 3 days
Medical News Today: Could these 'molecular switches' stop brain cancer?
MNT New research provides further promising evidence that molecular approaches might slow or reverse the progress of glioblastoma, an aggressive brain cancer. 3 days
Discovery will impact design of drug delivery systems at the molecular level
PHYS.ORG Researchers at Houston Methodist and Rice University have made a discovery that will impact the design of not only drug delivery systems, but also... 3 days
Why chikungunya, other arthritis-causing viruses target joints
SCIENCE DAILY Scientists have understood little about how chikungunya and related viruses cause arthritis. Now, researchers at have identified the molecular handle that chikungunya grabs to get inside cells. The findings could lead to ways to... 3 days
Metallic drivers of Alzheimer's disease
PHYS.ORG X-ray spectromicroscopy at the Scanning X-ray Microscopy beamline (I08), here at Diamond, has been utilised to pinpoint chemically reduced iron and calcium compounds within protein plaques derived from brains of Alzheimer's disease patients. The study, published in Nanoscale,... 3 days
Newly discovered protein operated in earliest organisms
PHYS.ORG Life on Earth depends on photosynthetic carbon dioxide (CO2) fixation to form organic carbon. Plants take atmospheric CO2 and transform it into organic molecules such as glucose. This process evolved in cyanobacteria and was... 3 days
Processing glass like a polymer
PHYS.ORG Pure quartz glass is highly transparent and resistant to thermal, physical, and chemical impacts. These are optimum prerequisites for use in optics, data technology or medical engineering. For efficient, high-quality machining, however, adequate processes are lacking. Scientists of... 3 days
X-ray laser reveals ultrafast dance of liquid water
PHYS.ORG Water's lack of color, taste and smell make it seem simple – and on a molecular level, it is. However, when many water molecules come together they form a highly complex network... 3 days
Researchers develop new chemistry to make smart drugs smarter
PHYS.ORG A method to activate targeted drugs, or smart drugs, only at the selected site of action, an approach that improves the drug's therapeutic effect and minimizes side effects, has been... 3 days
Photosynthesis involves a protein "piston"
PHYS.ORG Plants convert water and carbon dioxide into sugars and oxygen by photosynthesis. Photosynthesis is thus integral to life as we know it and has been investigated extensively by researchers around the globe. 3 days
Functional films made of environmentally friendly clay minerals and dyes
PHYS.ORG Researchers from Tokyo Metropolitan University and Shimane University have created a transparent hybrid film that combines natural clay minerals and dyes into a material that changes color in... 3 days
EU court upholds curbs on bee-killing pesticide
PHYS.ORG A top European Union court on Thursday upheld the ban on three insecticides blamed for killing off bee populations, dismissing cases brought by chemicals giants Bayer and Syngenta. 3 days
Scientists disrupt two enzymes to shrink cancer cells
NEWS MEDICAL Before cell division, the long strings of the cell's DNA are wrapped tightly into the structures we know as chromosomes. This protects the cell's genetic material from physical and chemical damage. 3 days
Researcher develops small molecules that inhibit derailment of gene expression in cancer
NEWS MEDICAL Not everyone person who has a "cancer gene" will inevitably develop this disease in their lifetime. Thanks to a new area of research called... 3 days
Study finds molecular handle that chikungunya virus uses to enter into cells and cause arthritis
NEWS MEDICAL Chikungunya virus is a growing threat to the United States and other regions of the world as the... 3 days
Mayo discovery could enable development of personalized ovarian, brain cancer treatments
NEWS MEDICAL Mayo Clinic researchers have discovered that a molecular communication pathway – thought to be defective in cancer – is a key player in determining the effectiveness... 4 days
Rising emissions of ozone-destroying chemical banned by Montreal Protocol
SCIENCE DAILY Emissions of one of the chemicals most responsible for the Antarctic ozone hole are on the rise, despite an international treaty that required an end to its production in 2010,... 4 days
Europium points to new suspect in continental mystery
SCIENCE DAILY Clues from some unusual Arizona rocks pointed scientists toward a discovery -- a subtle chemical signature in rocks the world over -- that could answer a long-standing mystery: What stole the iron... 4 days
Individualized ovarian, brain cancer therapies
SCIENCE DAILY Researchers have discovered that a molecular communication pathway -- thought to be defective in cancer -- is a key player in determining the effectiveness of measles virus oncolytic cancer treatment in ovarian and aggressive brain cancers. This discovery... 4 days
Mechanical force controls the speed of protein synthesis
PHYS.ORG As cells create proteins, the proteins modulate synthesis speed by exerting a mechanical force on the molecular machine that makes them, according to a team of scientists who used a combination of... 4 days
[Research Articles] Targeted inhibition of histone H3K27 demethylation is effective in high-risk neuroblastoma
Science Magazine High-risk neuroblastoma is often distinguished by amplification of MYCN and loss of differentiation potential. We performed high-throughput drug screening of epigenetic-targeted therapies... 4 days
Europium points to new suspect in continental mystery
PHYS.ORG Clues from some unusual Arizona rocks pointed Rice University scientists toward a discovery—a subtle chemical signature in rocks the world over—that could answer a long-standing mystery: What stole the iron from Earth's... 4 days
Emissions of banned ozone-eating chemical somehow are rising
PHYS.ORG Something strange is happening with a now-banned chemical that eats away at Earth's protective ozone layer: Scientists say there's more of it—not less—going into the atmosphere and they don't know where it... 4 days
Astronomers find evidence for stars forming just 250 million years after Big Bang
PHYS.ORG Not long after the Big Bang, the first generations of stars began altering the chemical make-up of primitive galaxies, slowly enriching the... 4 days
Cellular valve structure opens up potential novel therapies
PHYS.ORG Biochemists at the University of Zurich have determined the detailed structure of a volume-regulated chloride channel. This cellular valve is activated in response to swelling to prevent the cell from bursting. The... 4 days
Could gut bacteria drive colon cancer?
MNT Could gut bacteria impact the development of colon cancer by interacting with molecules that help to regulate gene expression? A recent study investigates. 4 days
Medical News Today: Could gut bacteria drive colon cancer?
MNT Could gut bacteria impact the development of colon cancer by interacting with molecules that help to regulate gene expression? A recent study investigates. 4 days
Beef peptides block bitter tastes
PHYS.ORG From burgers to steaks, beef has a long history of being a delicious part of dinner. But what if that pleasant experience of eating beef could extend beyond the dinner plate? Now, one group reports in ACS' Journal... 4 days
Moving away from plastics: The case of solid body wash
PHYS.ORG For consumers trying to avoid plastics and go "green," solid body wash sold without packaging seems to be a good alternative to wrapped and bottled soaps. But as... 4 days
PNNL successfully vitrifies three gallons of radioactive tank waste
PHYS.ORG In a first-of-its-kind demonstration, researchers at the Department of Energy's Pacific Northwest National Laboratory have vitrified low-activity waste from underground storage tanks at Hanford, immobilizing the radioactive and chemical materials... 4 days
Tailor-made synthesis of cyclic chemicals by means of enzymes
PHYS.ORG Penicillin-based antibiotics contain a five-membered hydrocarbon cycle, additionally incorporating a sulfur and a nitrogen atom. Nadine Zumbrägel, doctoral student at the Chair of Organic Chemistry I at Bielefeld University, has... 4 days
HKBU researchers develop metal based probes for imaging dopamine receptors in living cells
NEWS MEDICAL A team led by Dr Edmond Ma Dik-lung, Associate Professor of the Department of Chemistry of Hong Kong Baptist University has developed... 4 days
New device for quick and accurate detection of lead
PHYS.ORG A research team from the Department of Chemistry of Hong Kong Baptist University (HKBU) has invented a portable device for one-stop detection of lead concentration in drinking water. The DNA-based... 4 days
Scientists develop integrated system for early diagnosis of diseases using wearable monitors
NEWS MEDICAL Researchers from the Wolfson Faculty of Chemical Engineering at the Technion-Israel Institute of Technology have developed an integrated system for early diagnosis of diseases... 4 days
First epoetin alfa biosimilar receives FDA approval to treat certain types of anemia
NEWS MEDICAL The U.S. Food and Drug Administration today approved Retacrit (epoetin alfa-epbx) as a biosimilar to Epogen/Procrit (epoetin alfa) for the treatment of... 5 days
Making carbon nanotubes as usable as common plastics
SCIENCE DAILY By using an inexpensive, already mass produced, simple solvent called cresol, scientists have discovered a way to make disperse carbon nanotubes at unprecedentedly high concentrations without the need for additives or harsh... 5 days
Different diseases elicit distinct sets of exhausted T cells
SCIENCE DAILY The battle between the human immune system and long-term, persisting infections and other chronic diseases such as cancer results in a prolonged stalemate. Over time battle-weary T cells become exhausted,... 5 days
Astonishing effect enables better palladium catalysts
SCIENCE DAILY The taste of the chocolate cake's icing should not depend on whether it is served on a porcelain or a silver plate. Similarly, for chemical reactions on the surface of large precious metal grains, the substrate... 5 days
Making carbon nanotubes as usable as common plastics
PHYS.ORG Northwestern University's Jiaxing Huang is ready to reignite carbon nanotube research. And he's doing so with a common chemical that was once used in household cleaners. 5 days
Scientists crack how primordial life on Earth might have replicated itself
PHYS.ORG Scientists have created a new type of genetic replication system which demonstrates how the first life on Earth—in the form of RNA—could have replicated itself. The... 5 days
Electron-Shooting Carbon Nanotubes Could Improve Our Understanding of Asteroids
SPACE.COM A new NASA probe will use incredibly tiny, rolled tubes of carbon to analyze rocky objects like asteroids, which may hold chemical clues about the origin of the solar system... 5 days
Carbon-recycling system: Two-electron chemical reactions using light energy, gold
SCIENCE DAILY Scientists are one step closer to building a carbon-recycling system that can harvest solar energy to efficiently convert CO2 and water into liquid fuels. By optimizing many parts of the... 5 days
Team achieves two-electron chemical reactions using light energy, gold
PHYS.ORG Scientists are one step closer to building a carbon-recycling system that can harvest solar energy to efficiently convert CO2 and water into liquid fuels. By optimizing many parts of the... 5 days
Physicists developing quantum-enhanced sensors for real-life applications
PHYS.ORG A University of Oklahoma physicist, Alberto M. Marino, is developing quantum-enhanced sensors that could find their way into applications ranging from biomedical to chemical detection. 5 days
Immune system can produce 'universal antibodies' against various microorganisms
NEWS MEDICAL Bacteria and other microorganisms display structures from sugar molecules on their surfaces. These sugar structures play an important role for immune defense. 5 days
Producing beneficial propylene while consuming a major greenhouse gas
PHYS.ORG What if a major heat-trapping greenhouse gas could be consumed to produce a valuable chemical that is in short supply? Chemists at the U.S. Department of Energy's (DOE) Brookhaven National... 5 days
Astonishing effect enables better palladium catalysts
PHYS.ORG In chemistry, atoms can usually only affect their immediate neighborhood. At TU Vienna, a novel effect with astonishing long-range action has been discovered, which can make automotive catalytic converters more effective. 5 days
Researchers determine chemical composition of two extremely metal-poor stars
PHYS.ORG A group of scientists led by Avrajit Bandyopadhyay of the Indian Institute of Astrophysics, Bangalore, has conducted chemical analysis of two bright, extremely metal-poor stars. The results of the analysis,... 5 days
A new gelling molecule for growing neurons in 3-D
PHYS.ORG A multidisciplinary team of researchers from CNRS, INSERM and Université Toulouse III – Paul Sabatier has developed a hydrogel that can grow, develop and differentiate neural stem cells. This biomaterial... 5 days
Scientists investigate inorganic biomaterials with antimicrobial properties
PHYS.ORG A team of scientists from the Lobachevsky University Department of Solid State Chemistry under Dr. Evgeny Bulanov has developed a new method for obtaining bismuth-containing apatite and has studied its crystal structure and thermodynamic... 5 days
Chemists find new way to create lithium metal electrodes for batteries
PHYS.ORG Researchers at Yale and Donghua University in China have developed a new process for creating lithium metal that may boost the energy and capacity of rechargeable... 5 days
Computer models provide valuable insight to structure and function of Ebola, Zika viruses
NEWS MEDICAL The viruses that cause Ebola and Zika, daunting diseases that inspire concern at every outbreak, share a strong similarity in how they... 5 days
New cancer treatment approach targets specific sugar receptors
NEWS MEDICAL In the treatment of cancer, there are still several limitations. Especially the delivery of sufficient amounts of active chemotherapeutic drug is difficult. 5 days
Researchers lab-test molecule that may combat common cold virus
NEWS MEDICAL Researchers have lab-tested a molecule that can combat the common cold virus by preventing it from hijacking human cells. 5 days
Molecule that acts on human cells might provide hope for 'irresistible' cold cure
SCIENCE DAILY Researchers have lab-tested a molecule that can combat the common cold virus by preventing it from hijacking human cells. 6 days
Frequency-stable laser systems for space
SCIENCE DAILY For the first time a frequency reference based on molecular iodine was successfully demonstrated in space! What sounds a bit like science fiction is an important step towards laser interferometric distance measurements between satellites as well as for... 6 days
New molecule to improve pharmaceuticals draws inspiration from nature's toolbox
SCIENCE DAILY In the race to create more potent and stable medicines, scientists know that adding fluorine can improve drug molecules. However, there is only one fluorination reaction known to... 6 days
Astronomers Find ‘Vibrating’ Interstellar Cloud
SCI-NEWS.COM A team of astronomers from the Australian National University and the University of Crete has determined the 3D structure of the interstellar molecular cloud Musca, and... 6 days
Multiple resistance genes found in commercially farmed chickens and in hospital
PHYS.ORG A team of investigators has isolated colistin-resistant Escherichia coli from a commercial poultry farm in China. Colistin is an antibiotic of last resort against certain bacteria.... 6 days
Molecule that acts on human cells might provide hope for 'irresistible' cold cure
PHYS.ORG Researchers have lab-tested a molecule that can combat the common cold virus by preventing it from hijacking human cells. 6 days
Eco-friendly water treatment works best with experienced bacterial flora
SCIENCE DAILY Sustainable, biological filters called slow sand filters have been used to filter drinking water since the 1800s. They don't use any chemicals, create no waste and use very little energy.... 6 days
Trial shows chemotherapy is helping kids live with pulmonary vein stenosis
SCIENCE DAILY A clinical trial shows that adding chemotherapy to a treatment regimen including catheterization and surgery can deter abnormal cellular growth and finally give children with pulmonary... 6 days
Shedding light on a cyclic molecule with a twist
SCIENCE DAILY As suggested by their name, Möbius molecules have a twisted loop structure, a special characteristic with many potential applications. A research team has revealed the properties of a type of... 6 days
Eco-friendly water treatment works best with experienced bacterial flora
PHYS.ORG Sustainable biological filters called slow sand filters have been used to filter drinking water since the 1800s. They don't use any chemicals, create no waste and use very little energy.... 6 days
Carbon dioxide and iron at the origin of life
PHYS.ORG Researchers at the University of Strasbourg have discovered a striking similarity between the way carbon dioxide (CO2) reacts with metals and the way that ancient microbes use CO2 to build... 6 days
Shedding light on a cyclic molecule with a twist
PHYS.ORG As suggested by their name, Möbius molecules have a twisted loop structure, a special characteristic with many potential applications. A Japanese research team has revealed the properties of a type... 6 days
Embryonic patterning system reveals cell coordination to create astonishingly precise patterns
PHYS.ORG As an embryo develops from a little glob of primitive cells, it patterns itself into precise, spatially organized regions and tissues. This requires that individual cells... 6 days
Supercharged biomacromolecules can maintain their reordered structures induced, for example, by a fingertip touch
PHYS.ORG Stimuli-sensitive materials can respond to physical forces with structural phase transitions. This also applies to biopolymer–surfactant mixtures, a study by... 6 days
Microscale IR spectroscopy enabled by phase change materials and metasurfaces
PHYS.ORG The mid-infrared is an interesting part of the electromagnetic spectrum composed of colours that cannot be seen by the human eye. Many chemical molecules resonate when illuminated by... 6 days
Researchers screen molecules that could be potential target for prostate cancer treatments
NEWS MEDICAL Cancer researchers at the University of Bath have measured systematically how efficient molecules are at suppressing the activity of a protein associated with prostate... 6 days
Adding chemotherapy to treatment regimen can give children with PVS a chance to grow up
NEWS MEDICAL Pulmonary vein stenosis (PVS) is a rare disease in which abnormal cells build up inside the veins responsible... 1 week
Chemoradiotherapy could be safely avoided in many rectal cancer patients
NEWS MEDICAL It’s unclear whether all patients with advanced rectal cancer need chemoradiotherapy, or whether some can forego the treatment and therefore be spared its side effects. 1 week
Phase behaviors of colloidal analogs of bent-core liquid crystals
Science Magazine Bent-core liquid crystal (LC) molecules are known to form mesophases with fascinating polar order and supramolecular chirality despite the achiral nature of the mesogens. The assembly of colloidal particles with... 1 week
Tuning peptide self-assembly by an in-tether chiral center
Science Magazine The self-assembly of peptides into ordered nanostructures is important for understanding both peptide molecular interactions and nanotechnological applications. However, because of the complexity and various self-assembling pathways of peptide molecules, design of... 1 week
A giant 'singing' cloud in space will help us to understand how star systems form
PHYS.ORG