Current Molecules News and Events

Current Molecules News and Events, Molecules News Articles.
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Scientists identify potential contributor to hyper immune responses in patients with severe COVID-19
Researchers have pinpointed a helper T cell population in the lungs of patients with severe COVID-19 that may be central to the development of hyperinflammation, lung injury, and subsequent acute respiratory distress syndrome (ARDS) during disease (2021-02-23)

New technique reveals switches in RNA
Scientists at the University of Groningen (The Netherlands), in collaboration with colleagues from the University of Torino (Italy), have developed a method to visualize and quantify alternative structures of RNA molecules. These alternative RNA 'shapes' can have important functional relevance in viruses and bacteria. The method was used to identify a conserved structural switch in the RNA of the SARS-CoV-2 virus. (2021-02-22)

Giving oxygen to the question of air quality
Volatile alkanes can rapidly acquire oxygen atoms in a free radical chain reaction, a process significant for fuel combustion and air pollution. (2021-02-18)

Fuel for earliest life forms: Organic molecules found in 3.5 billion-year-old rocks
For the first time, biologically-relevant organic molecules have been detected in Archaean fluid inclusions, which most likely served as nutrients for early life on Earth. (2021-02-18)

New microscopy analysis allows discovery of central adhesion complex
Researchers at University of M√ľnster and the Max Planck Institute of Biochemistry have developed a method for determining the arrangement and density of individual proteins in cells. In this way, they were able to prove the existence of an adhesion complex consisting of three proteins. (2021-02-15)

The water surface is a fantastic place for chemical reactions
Using an advanced technique, scientists from the RIKEN Cluster for Pioneering Research have demonstrated that a chemical reaction powered by light takes place ten thousand times faster at the air-water interface--what we usually call the water surface--than in the bulk of the water, even when the light has equivalent energy. This finding could help our understanding of the many important chemical and biological processes that take place at the water surface. (2021-02-15)

Researchers measure temperature effect of plasmon in chemical reactions using organic "sensors"
The researchers of TPU together with their colleagues from Russian and foreign scientific centers have found a way to estimate the temperature of a chemical reaction activated by pseudo-particles - plasmons. Two organic molecules served as ultra-small sensors or thermometers. (2021-02-15)

A new perceptually-consistent method for MSI visualization
Skoltech scientists have proposed a Mass Spectrometry Imaging (MSI) method leveraging the unique features of human vision (2021-02-11)

Using Nature's strategies in the development of new drugs
Dimerization of the human neuropeptides oxytocin and vasopressin can produce new types of bioactive molecules. Such new constructs provide several opportunities to optimize the efficacy of these neuropeptides for therapeutic application. The researchers were inspired for this approach from naturally occurring dimers. (2021-02-10)

Chemists identified necessary conditions for successful synthesis of small molecules
A team of researchers from Immanuel Kant Baltic Federal University and Saint Petersburg State University identified the factors that affect the speed of synthesis of organic molecules consisting of several heterocycles. According to the team, accurate selection of reagents and reaction conditions can help efficiently obtain compounds used in the pharmaceutical industry. (2021-02-09)

New drug target for Ebola, Marburg viruses
Researchers have identified a previously unknown site on the filovirus glycoprotein to which small drug molecules can bind and prevent infection -- blocking both sites may be a more effective treatment while reducing the risk of side effects. (2021-02-08)

New way to power up nanomaterials for electronic applications
UCLA materials scientists and colleagues have discovered that perovskites, a class of promising materials that could be used for low-cost, high-performance solar cells and LEDs, have a previously unutilized molecular component that can further tune the electronic property of perovskites. (2021-02-05)

How metal atoms can arrange themselves on an insulator
In order to produce tiny electronic memories or sensors in future, it is essential to be able to arrange individual metal atoms on an insulating layer. Scientists at Bielefeld University's Faculty of Chemistry have now demonstrated that this is possible at room temperature: molecules of the metal-containing compound molybdenum acetate form an ordered structure on the insulator calcite without jumping to other positions or rotating. Their findings have been presented in the Nature Communications journal. (2021-02-04)

New weapon for inflammation
Flinders University researchers have discovered a new anti-inflammatory role for well-known blood clot protein fibrinogen, which could support targeted new treatments for kidney, heart and other common diseases. The study in Redox Biology describes how fibrinogen can be protective against hypochlorite - a chemical generated by the body during inflammation - and so act as a kind of antioxidant in blood plasma. (2021-01-31)

Dalian coherent light source reveals the origin of interstellar medium S2 fragments
Researchers observed the C+S2 product channel from CS2 photodissociation for the first time using a home-made Time-Sliced Velocity Map Ion Imaging (TS-VMI) experimental setup, based on the Dalian Coherent Light Source (DCLS). (2021-01-28)

An efficient tool to link X-ray experiments and ab initio theory
The electronic structure of complex molecules and their chemical reactivity can be assessed by the method of resonant inelastic X-ray scattering (RIXS) at BESSY II. However, the evaluation of RIXS data has so far required very long computing times. A team at BESSY II has now developed a new simulation method that greatly accelerates this evaluation. The results can even be calculated during the experiment. Guest users could use the procedure like a black box. (2021-01-28)

A professor from RUDN University developed new liquid crystals
A professor from RUDN University together with his Indian colleagues synthesized and studied new dibenzophenazine-based liquid crystals that could potentially be used in optoelectronics and solar panels. (2021-01-22)

Researchers make domestic high-performance bipolar membranes possible
A team led by Prof. XU Tongwen and Prof WU Liang from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) adopted an in-situ growth idea to construct a stable and efficient membrane (2021-01-21)

Pioneering new technique could revolutionise super-resolution imaging systems
Scientists have developed a pioneering new technique that could revolutionise the accuracy, precision and clarity of super-resolution imaging systems. (2021-01-21)

A massive advance in spectrometry
Kanazawa University scientists use computer simulations of charged molecules to help improve the accuracy of mass spectrometers. By understanding the collisions between ions that reduce excess charges, this work may lead to more sensitive radiocarbon dating and medical testing. (2021-01-18)

Modulating helical nanostructures in liquid crystal phase by molecular design
Toyohashi University of Technology has successfully developed sulfur-containing liquid crystal (LC) dimer molecules, which exhibit a helical liquid crystal phase, over a wide temperature range. It is that the ester bond direction in the molecular structures largely impacts the pitch lengths of helical nanostructures in the NTB phase. It is expected that this molecular design can be used to tune the resultant physical properties of LC materials that would contribute to new LC technologies. (2021-01-18)

High-sensitivity nanophotonic sensors with passive trapping of analyte molecules in hot-spots
Optical sensing which captures fingerprint information of chemical or biological substances with light, plays a crucial role in many areas including environmental sensing, medical diagnostics and homeland security. Scientists from University at Buffalo demonstrated an optical sensor design which utilizes nano-scale trenches to passively concentrate and trap trace analytes in a solution, leading to the capability of detecting picogram level biomolecules such as glucose and amino acids. The devices also achieved effective trapping of nano-particles. (2021-01-13)

Rare quadruple-helix DNA found in living human cells with glowing probes
New probes allow scientists to see four-stranded DNA interacting with molecules inside living human cells, unravelling its role in cellular processes. (2021-01-13)

University at Buffalo researchers report quantum-limit-approaching chemical sensing chip
University at Buffalo researchers are reporting an advancement of a chemical sensing chip that could lead to handheld devices that detect trace chemicals -- everything from illicit drugs to pollution -- as quickly as a breathalyzer identifies alcohol. (2021-01-11)

Gum disease-causing bacteria borrow growth molecules from neighbors to thrive
The human body is filled with friendly bacteria. However, some of these microorganisms, such as Veillonella parvula, may be too nice. These peaceful bacteria engage in a one-sided relationship with pathogen Porphyromonas gingivalis, helping the germ multiply and cause gum disease, according to a new University at Buffalo-led study. (2021-01-05)

Chemists synthesize 'flat' silicon compounds
Chemists at the University of Bonn (Germany) have synthesized extremely unusual compounds. Their central building block is a silicon atom. Different from usual, however, is the arrangement of the four bonding partners of the atom, which are not in the form of a tetrahedron around it, but flat like a trapezoid. This arrangement is usually energetically extremely unfavorable, yet the molecules are very stable. The results appear in the Journal of the American Chemical Society. (2020-12-22)

Chemists describe a new form of ice
Scientists from the United States, China, and Russia have described the structure and properties of a novel hydrogen clathrate hydrate that forms at room temperature and relatively low pressure. Hydrogen hydrates are a potential solution for hydrogen storage and transportation, the most environmentally friendly fuel. (2020-12-22)

New insights into Fragile X syndrome and the fetal brain
Researchers at Tohoku University have revealed further insight into the fetal development of our brain and the potential causes of Fragile X syndrome (FSX). (2020-12-16)

How water helps the substrate into the enzyme
Researchers from Bochum and Berkeley have investigated why cages can increase the catalytic activity of enclosed molecules. Using terahertz spectroscopy and complex computer simulations, they showed that water encapsulated in a tiny cage has special properties - that are structurally and dynamically distinct from any known phase of water. The water forms a droplet inside the cage that facilitates the encapsulation of a host molecule, i.e. to access the catalytic centre. (2020-12-15)

Device mimics life's first steps in outer space
A device developed by scientists at the CY Cergy Paris University and Paris Observatory promises insight into how the building blocks of life form in outer space. In Review of Scientific Instruments, the scientists detail how VENUS -- an acronym of the French phrase ''Vers de Nouvelles Syntheses,'' which means ''toward new syntheses'' -- mimics how molecules come together in the freezing darkness of interstellar space. (2020-12-15)

Mystery solved with math: cytoplasmic traffic jam disrupts sleep-wake cycles?
KAIST mathematicians and their collaborators at Florida State University have identified the principle of how aging and diseases like dementia and obesity cause sleep disorders. A combination of mathematical modelling and experiments demonstrated that the cytoplasmic congestion caused by aging, dementia, and/or obesity disrupts the circadian rhythms in the human body and leads to irregular sleep-wake cycles. This finding suggests new treatment strategies for addressing unstable sleep-wake cycles. (2020-12-11)

Making cheaper, biocompatible E-skin electrodes
DGIST materials scientists and colleagues in Korea have improved electrical conductivity in a polymer electrode for E-skin applications. Their approach is simple and cheap, but further enhancements are needed for the polymer to become a viable alternative to more expensive gold electrodes. The scientists published their findings in the journal Biosensors and Bioelectronics. (2020-12-10)

New JILA tools 'turn on' quantum gases of ultracold molecules
JILA researchers have developed tools to 'turn on' quantum gases of ultracold molecules, gaining control of long-distance molecular interactions for potential applications such as encoding data for quantum computing and simulations. (2020-12-09)

Hydrogels with fine-toothed molecular combs may make enduring glucose-monitoring implants
In a new study, published online in the journal American Chemical Society (ACS) Applied Polymer Materials, scientists at Texas A&M University reported they have designed a hydrogel membrane that may be used to house optical glucose sensing materials, toward building a biosensor for monitoring sugar levels in diabetics. (2020-12-09)

Pollution from cooking remains in atmosphere for longer - study
Particulate emissions from cooking stay in the atmosphere for longer than previously thought, making a prolonged contribution to poor air quality and human health, according to a new study. (2020-12-08)

In new step toward quantum tech, scientists synthesize 'bright' quantum bits
Qubits (short for quantum bits) are often made of the same semiconducting materials as our everyday electronics. But now an interdisciplinary team of chemists and physicists at Northwestern University and the University of Chicago has developed a new method to create tailor-made qubits: by chemically synthesizing molecules that encode quantum information into their magnetic, or ''spin,'' states. This new bottom-up approach could ultimately lead to quantum systems that have extraordinary flexibility and control, helping pave the way for next-generation quantum technology. (2020-12-08)

Key building block for organic molecules discovered in meteorites
Scientists from Japan and the USA have confirmed the presence in meteorites of a key organic molecule which may have been used to build other organic molecules, including some used by life. The discovery validates theories of the formation of organic compounds in extraterrestrial environments. (2020-12-07)

Shining a light on the weird world of dihydrogen phosphate anions
UNSW scientists show that dihydrogen phosphate anions actually bind to one another when their negative charges suggest they shouldn't. (2020-12-07)

How to use antibodies to control chemical reactions
In a collaborative effort a group of international scientists has recently demonstrated a way to control different synthetic chemical reactions with specific antibodies. Their work has been now published in Nature Communications. (2020-12-07)

Molecular pores for thought
Ultrathin porous films that can pluck out specific nanoscopic molecules could refine oil purification and drug development. (2020-12-06)

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