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Category: Chemical Engineering

Cutting potentially harmful chemicals like PFAS from consumer goods — ScienceDaily

Human exposure to unnecessary and potentially harmful chemicals could be greatly reduced if manufacturers add chemicals only when they are truly essential in terms of health, safety and functioning of society. That’s the conclusion of a study published today in Environmental Science: Processes & Impacts, a peer-reviewed journal published by the Royal Society of Chemistry. In this study, researchers propose a framework based on the concept of “essential use” to determine whether a chemical is really needed in a particular…

Evidence from ancient burials at high elevations — ScienceDaily

Cannabis has been cultivated as an oil-seed and fibre crop for millennia in East Asia. Little is known, however, about the early use and eventual cultivation of the plant for its psychoactive and medicinal properties. Despite being one of the most widely used psychoactive drugs in the world today, there is little archaeological or historical evidence for the use of marijuana in the ancient world. The current study, published in the journal Science Advances, identified psychoactive compounds preserved in 2,500-year-old…

New microorganism for algae biomass to produce alternative fuels — ScienceDaily

The biorefinery technology uses biomass as a feedstock and converts it to energy and other beneficial byproducts. It is drawing attention as an eco-friendly and sustainable technology to prepare for depletion of fossil fuels. However, the types of biomass that can be used for this technology are very limited. Starch crops such as corns are utilized as biomass (mainly glucose), but they are easily consumed by microorganism. Such processes have limitations in satisfying the growing demands of bioproducts, for example,…

Hand-held scanner for detecting hazardous substances and explosives

Credit: Fraunhofer Institute for Applied Solid State Physics IAF Together with partners from research and industry, Fraunhofer IAF has developed a hand-held scanner for hazardous substances within the EU project CHEQUERS. The sensor detects explosive, toxic and other dangerous substances in real time and will help emergency personnel with on-site detections at crime scenes, after accidents or terroristic attacks. On April 25, the project consortium met for the successful completion of the project. Police forces encounter a suspicious room during…

Data science helps engineers discover new materials for solar cells and LEDs — ScienceDaily

Engineers at the University of California San Diego have developed a high-throughput computational method to design new materials for next generation solar cells and LEDs. Their approach generated 13 new material candidates for solar cells and 23 new candidates for LEDs. Calculations predicted that these materials, called hybrid halide semiconductors, would be stable and exhibit excellent optoelectronic properties. The team published their findings on May 22, 2019 in the journal Energy & Environmental Science. Hybrid halide semiconductors are materials that…

Trio of Mizzou Engineers earn top MU academic accolade

Sarah Gebken, Luke Guerdan and Julie Nguyen earned MU Awards for Academic Distinction. A trio of Mizzou Engineering students earned a University of Missouri Award for Academic Distinction recently in honor of their tremendous success in the classroom. The awardees, with their majors and faculty mentors, were: Sarah Gebken, Biological Engineering (Chris Pires) Luke Guerdan, Computer Science and Psychology (Yi Shang) Julie Nguyen, Chemical Engineering and Music (Bret Ulery) According to MU, the award recognizes undergraduate students who go above…

Smart device detects food contaminants in real time

Credit: Eric Von Seggern, Shutterstock Some consumers place importance on locally grown or organic food. Others want the products they purchase to look and taste good. Yet others focus on low prices. However, no matter what their other requirements, everyone would like their food to be free of contaminants, which makes it quite worrying that over 97 percent of European food products contain pesticide residues. The problem is that current contamination testing processes can be long and expensive, and can…

Six Engineers tapped into secret societies on Tap Day

Tap Day is one of the University of Missouri’s grandest traditions, dating back to the early 20th Century. Students and honorary alumni and faculty members are inducted into one of six secret societies for their exemplary service and achievements during their time at MU. Five Mizzou Engineering students and one alumnus were chosen for induction this year and were revealed at Friday’s Tap Day ceremony at Jesse Hall. QEBH  Rusty Martin — 1984 Civil and Environmental Engineering graduate Mortar Board…

Scientists restore some functions in a pig’s brain hours after death — ScienceDaily

Circulation and cellular activity were restored in a pig’s brain four hours after its death, a finding that challenges long-held assumptions about the timing and irreversible nature of the cessation of some brain functions after death, Yale scientists report April 18 in the journal Nature. The brain of a postmortem pig obtained from a meatpacking plant was isolated and circulated with a specially designed chemical solution. Many basic cellular functions, once thought to cease seconds or minutes after oxygen and…

Smart antioxidant-containing polymer responds to body chemistry, environment — ScienceDaily

Oxidants found within living organisms are byproducts of metabolism and are essential to wound-healing and immunity. However, when their concentrations become too high, inflammation and tissue damage can occur. University of Illinois engineers have developed and tested a new drug-delivery system that senses high oxidant levels and responds by administering just the right amount of antioxidant to restore this delicate balance. The findings are published in the journal Small. Many pharmaceuticals include specialized polymers and particles that control the timing…