Mimicking a molecule found in poppies
A Rice University undergraduate student's grit and talent paid off in a big way when she introduced the first synthesis of a rare and potentially potent molecule drawn from poppies. .....»»
Ductile oligomeric acceptor enables highly efficient and mechanically robust flexible organic solar cells
A research group led by Prof. Ge Ziyi at the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences has incorporated a ductile oligomeric acceptor (DOA) into the polymer donors and small molecule acceptors.....»»
Anti-viral drug backfires: COVID drug linked to viral mutations that spread
Merck's small-molecule molnupiravir linked to mutated viruses that spread in people. Enlarge / A worker handles a bottle of Merck & Co. and Ridgeback Biotherapeutics LPs molnupiravir antiviral medication in a warehouse in Shoha.....»»
Iron-based molecular switch improves reaction yield by modulating zeolite catalyst acidity
A molecular switch, or molecule that changes in response to varying environmental stimuli, has successfully modified the acidity of a zeolite catalyst to improve the yield of paraxylene from methanol in heterogeneous catalysis, or a reaction where th.....»»
Efficient fuel-molecule sieving using graphene
A research team led by the University of Tsukuba has successfully developed a new method that can prevent the crossover of large fuel molecules and suppress the degradation of electrodes in advanced fuel cell technology using methanol or formic acid......»»
Using harmless light to change azobenzene molecules with new supramolecular complex
Azobenzenes are incredibly versatile and have many potential uses, such as in making tiny machines and improving technology as well as making light controllable drugs. This molecule can switch between two different forms by light. However, the two fo.....»»
A mysterious blue molecule will help make better use of light energy
Researchers at IOCB Prague are the first to describe the causes of the behavior of one of the fundamental aromatic molecules, which fascinates the scientific world not only with its blue color but also with other unusual properties—azulene. Their c.....»»
"Crappier-than-crap" molecule exposed in overhaul of carbon-nitrogen-hydrogen chemistry
Russian researchers have explained why scientists studying crude oil and celestial chemistry—as well as certain down-to-earth matters—frequently come across some molecules incorporating carbon, nitrogen, and hydrogen but not other combinations of.....»»
Scientists probe the source of key hydrocarbons on Earth—and in space
Polycyclic aromatic hydrocarbons (PAHs) are a type of organic molecule that carry fused rings made of the chemical benzene. Scientists believe that PAHs are responsible for chemical processes that eventually lead to soot and other carbonaceous nanopa.....»»
Researchers present novel principle for nitric oxide-mediated signaling in blood vessels
Although a simple molecule, nitric oxide is an important signal substance that helps to reduce blood pressure by relaxing the blood vessels. But how it goes about doing this has long been unclear. Researchers at Karolinska Institutet in Sweden now pr.....»»
For the first time, research reveals crows use statistical logic
The birds can associate images with distinct reward probabilities. Enlarge (credit: John Dreyer) Whether playing tricks, mimicking speech, or holding “funerals,” crows and ravens (collectively known as corvids) have.....»»
AI "nose" predicts smells from molecular structures
In a major breakthrough, scientists have built a tool to predict the odor profile of a molecule, just based on its structure. It can identify molecules that look different but smell the same, as well as molecules that look very similar but smell tota.....»»
Quantum computer unveils atomic dynamics of light-sensitive molecules
Researchers at Duke University have implemented a quantum-based method to observe a quantum effect in the way light-absorbing molecules interact with incoming photons. Known as a conical intersection, the effect puts limitations on the paths molecule.....»»
"Thermometer" molecule confirmed on exoplanet WASP-31b
Chromium hydride (CrH), a molecule that's relatively rare and particularly sensitive to temperature, is useful as a "thermometer for stars," according to astronomer Laura Flagg, because it's abundant only in a narrow range between 1,200–2,000 degre.....»»
Study: Wnt signaling pathway inhibitor promotes mesenchymal stem cell differentiation into cardiac progenitor cells
Cardiovascular diseases, particularly myocardial infarction (MI), are the leading cause of mortality and morbidity around the globe. Because cardiac tissue possesses very limited regeneration potential, use of a potent small molecule, inhibitor Wnt p.....»»
Molecule identified that could be key for a new wave of drugs to target obesity and bone diseases
Scientists have identified a molecule that plays a key role in how cells detect when they are being pushed or pulled which could lead to the development of future drugs for obesity, osteoporosis, and inflammatory diseases......»»
The link between the impact of radiation on DNA and the time in which the damaged molecule breaks irreversibly revealed
We are exposed to ionizing radiation more often than we think: when we bathe in the sun, which emits UV rays, or when we get X-rayed. Even when we are traveling on an intercontinental flight, which reaches 10,000 meters above sea level. This type of.....»»
Small-molecule autocatalysis may have paved the way for the emergence of evolution by natural selection
The discipline of systems chemistry deals with the analysis and synthesis of various autocatalytic systems and is therefore closely related to the study of the origin of life, since it investigates systems that can be considered as a transition betwe.....»»
Researchers discover antifungal molecule
Fungal infections are killing thousands of Americans each year, some with a morbidity rate of nearly 80%. To make matters worse, only a handful of antifungal treatments are available, and even those are becoming less effective as fungi become more re.....»»
When cheating pays: Survival strategy of insect uncovered
Researchers have revealed the unique 'cheating' strategy a New Zealand insect has developed to avoid being eaten—mimicking a highly toxic species......»»
Researchers use quantum circuit to identify single nucleotides
DNA sequencing technology, i.e., determining the order of nucleotide bases in a DNA molecule, is central to personalized medicine and disease diagnostics, yet even the fastest technologies require hours, or days, to read a complete sequence. Now, a m.....»»