Processing & Handling
A more-sensitive way to differentiate chiral compounds
Circular dichroism (CD) is the established method for distinguishing between enantiomers — the optical isomers of molecules that are mirror images of each other. In this approach, circularly polarized light is passed through the sample and is absorbed differently by…
Upcycling of waste ABS into 3D-printable material with enhanced properties
In an advancement toward circularity for commodity plastics, researchers at the Oak Ridge National Laboratory (ORNL; Oak Ridge, Tenn.; www.ornl.gov) have developed a method for upcycling the commodity thermoplastic acrylonitrile butadiene styrene (ABS) into an ABS-vitrimer material that can be…
Limpet tooth inspires strongest biomaterial
An interdisciplinary team of biologists, chemists and engineers from the University of Portsmouth (U.K.; www.port.ac.uk) have become the first to successfully grow a limpet-inspired biomaterial with extreme strength. The common limpet (Patella vulgata) is a small, snail-like mollusk with a…
Biosynthesis of renewable, high-energy-density, cyclopropane-based fuels
Cyclopropane-functionalized hydrocarbons can be excellent fuels because of their high energy densities, but organic synthesis of such fuels is difficult. In work recently published in the journal Joule, a research team led by Jay Keasling at the Joint Bioenergy Institute…
Grace invests in small molecule API expansion
W. R. Grace & Co. (Columbia, Md.; www.grace.com) a global leader in specialty silica and fine chemicals, today announced it is proceeding with an expansion of its contract development and manufacturing (CDMO) facility in South Haven, Mich. The expansion will…
Chemenator Briefs
Cellulosic ethanol Clariant AG (Muttenz, Switzerland; www.clariant.com) has produced the first commercial cellulosic ethanol at its sunliquid production plant in Podari, Romania. The entire offtake is contracted with a multi-year agreement to Shell. Over the last six months, the plant…
Boosting methane yields in biogas plants
Biogas plants play an important role in defossilization — anaerobic bacteria in these plants break down biomass to form biogas which, on average, comprises up to 60% methane and more than 40% CO2. While the biogas is used to generate…
A ‘liquid’ platinum catalyst outperforms solids at low temperature
Platinum is widely used for many catalytic reactions, and because the precious metal is so expensive, efforts have been ongoing to reduce the amount of Pt required to perform reactions. Among these efforts are the use of nano-dispersions, clusters and…
‘Symbiotic’ electrolyzer runs on waste heat
A new steam-fed electrolyzer aims to bridge the gap between liquid-water electrolyzers, many of which require exotic materials and intricate membranes, and solid-oxide electrolyzers, which require superheated steam and temperatures as high as 800°C. This ‘symbiotic’ electrolyzer, developed by Advanced…
Iron catalyst shows promise for improving economics of metathesis reactions
The olefin metathesis reaction produces new carbon-carbon double bonds by swapping the carbon atoms in olefins, and is important for producing a number of chemicals. Currently, the most popular catalysts for this reaction are made from the precious metal ruthenium…