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“#Organocatalyst that controls radical reactions for complex and bulky compound synthesis” Credit: ACS Catalysis Organocatalysts consisting of organic compounds without metal elements are receiving much attention as next generation catalysts in the hope of reducing environmental burden and coping with exhaustion/rising prices of rare metals. However, it is difficult for an organocatalyst to control radical…
“#Breaking molecular traffic jams with finned nanoporous materials” 3-D finned zeolite catalysts enhance molecule access to the interior of the particle. Credit: J.C. Palmer Thousands of chemical processes used by the energy industry and for other applications rely on the high speed of catalytic reactions, but molecules frequently are hindered by molecular traffic jams that…
“#Seeing chemical reactions with music” (Top) Sound-controlled spatiotemporal patterns. Schematic representation of experimental setup used for sound-controlled spatiotemporal pattern generation. For pattern generation experiments, O2-sensitive methyl viologen (MV2 /MV * ) redox couple (left) or CO2-sensitive pH indicator bromothymol blue (BTB) is used. (Middle) Patterns generated in different conditions. Patterns generated in Petri dishes on…
“#Research team helps Arc’teryx stay green and dry with next-generation water-repellent fabrics” UBC Okanagan researchers Sadaf Shabanian (left) and Kevin Golovin (right) test water-repellent fabric treatment. Credit: UBC Okanagan A sustainable, non-toxic and high-performance water-repellent fabric has long been the holy grail of outdoor enthusiasts and clothing companies alike. New research from UBC Okanagan and…
“#Artificial intelligence sheds light on membrane performance” Credit: King Abdullah University of Science and Technology Membrane separations have long been recognized as energy-efficient processes with a rapidly growing market. In particular, organic solvent nanofiltration (OSN) technology has shown considerable potential when applied to various industries, such as petrochemicals, pharmaceuticals and natural products. The energy consumed…
“#Using porous crystals to harvest light” The metal-organic framework (MOF) contains zirconium-based nodes (lilac cuboctahedra) connected by carbon-based linker molecules (red and yellow rods) to form a porous structure with two large cavities (yellow and green spheres) in the crystalline material. The first linker absorbs ultraviolet light (315nm) and then transfers the energy as blue…
“#Discovery of naturally chiral surfaces for safer pharmaceuticals” The two non-superimposable mirror images of a chiral metal surface at the atomic scale. Credit: Professor Andrew Gellman In the 1960s, the sedative thalidomide was widely popular as one of the only non-barbiturate, over-the-counter sleep-aids on the market. When doctors started noticing that it also helped alleviate…
“#Programmable synthetic materials” Rods of multivariate MOFs (left) can be programmed with different metal atoms (colored balls) to do a series of chemical tasks, such as controlled drug release, or to encode information like the ones and zeros in a digital computer. Credit: UC Berkeley image by Omar Yaghi and Zhe Ji Artificial molecules could…
“#Making N-C bonds directly from dinitrogen: Summary and perspective” Credit: CC0 Public Domain As the most abundant constituent in Earth’s atmosphere, dinitrogen (N2) is the main nitrogen source of N-containing compounds in the Earth. Therefore, N2 fixation and activation are essential both for nature and humans. Nevertheless, the high bond dissociation energy (942 kJ/mol) and…
“#New-generation carbon dioxide gas separation system using gate-type adsorbents” Scientists in Japan designed a gate-type adsorbent tower system that captures and separates mixed gases, CO2, to enable lowering greenhouse gas emissions from industrial sources. Credit: Shotaro Hiraide Ph.D., Department of Chemical Engineering, Kyoto University The Paris Agreement of 2015 set a goal of reducing CO2…