Japanese researchers have succeeded in catalytic asymmetric iodoesterification from simple alkene substrates and carboxylic acids. Published in Angewandte Chemie International Edition on April 27, this new research, was accomplished by precisely controlling multiple interactions in a single catalytic reaction. This synthetic reaction is expected to contribute to the simplification of industrial processes and greater efficiency in optical active drug production.
NIST Scientists used UV light and glow powder to study the way small amounts of drug residue get spread around a forensic chemistry lab when analysts test seized drugs. Their study, recently published in Forensic Chemistry, addresses safety concerns in an age of super-potent synthetic drugs like fentanyl, which can potentially be hazardous to chemists who handle them frequently.
A technology to further accelerate the commercialization of Colloidal Quantum Dot(CQD) Photovoltaic(PV) devices, which are expected to be next-generation photovoltaic devices, has been developed.
In a Science Policy Forum, lead author Sam Weiss Evans joins more than a dozen biosecurity practitioners and analysts in calling for a new approach to biosecurity governance, grounded in experimentation. Developing an ability to rethink and test assumptions about biology, security, and society is vital to evolving biosecurity for the 21st Century. This means being systematic in governance design, periodically reassessing based on lived experience, and learning across biosecurity environments.
Did coronavirus mutate from a virus already prevalent in humans or animals or did it originate in a laboratory? As scientists grapple with understanding the source of this rapidly spreading virus, the Grunow-Finke assessment tool (GFT) may assist them with determining whether the coronavirus outbreak is of natural or unnatural origins.
Depending on whether uranium is released by the civil nuclear industry or as fallout from nuclear weapon tests, the ratio of the two anthropogenic, i.e. man-made, uranium isotopes 233U and 236U varies. These results were lately found by an international team at the University of Vienna and provides a promising new "fingerprint" for the identification of radioactive emission sources. As a consequence, it is also an excellent environmental tracer for ocean currents.
ORNL Story Tips: Antidote chasing, traffic control and automatic modeling
Metal-organic frameworks (MOFs) are porous, crystalline materials that can trap compounds within their molecular cavities, giving them a wide range of applications in gas storage and separation, carbon capture, and in the catalysis of chemical reactions, to name a few. A new range of applications are now being investigated by converting crystalline MOFs into liquid and/or glassy states.
The materials the United States and other countries plan to use to store high level nuclear waste will likely degrade faster than anyone previously knew, because of the way those materials interact, new research shows. The findings, published today in the journal Nature Materials, show that corrosion of nuclear waste storage materials accelerates because of changes in the chemistry of the nuclear waste solution, and because of the way the materials interact with one another.
Researchers at Northwestern University and Argonne National Laboratory have developed a new material that opens doors for a new class of neutron detectors. The semiconductor-based detector is highly efficient, stable, and can be used both in small, portable devices for field inspections and very large detectors that use arrays of crystals.