Hand sanitizer is causing an epidemic of chemical burns to children’s eyes

All that hand sanitizer people have been slathering on since the start of the COVID-19 pandemic has lead to more than just dry hands and eye-watering smells: More and more children are showing up to hospitals with hand sanitizer in their eyes, in some cases risking blindness. In a paper published Thursday (Jan. 21) in […]

Synthesis of potent antibiotic follows unusual chemical pathway — ScienceDaily

Images of a protein involved in creating a potent antibiotic reveal the unusual first steps of the antibiotic’s synthesis. The improved understanding of the chemistry behind this process, detailed in a new study led by Penn State chemists, could allow researchers to adapt this and similar compounds for use in human medicine. “The antibiotic thiostrepton […]

Synthesis of potent antibiotic follows unusual chemical pathway

The synthesis of the potent antibiotic thiostrepton uses a radical SAM protein TsrM, whose crystal structure is shown at left while bound to an iron-sulfur cluster and cobalamin. New images of this crystal structure allowed researchers from Penn State to infer the chemical steps during the antibiotic’s synthesis (right), as a methyl group moves from […]

Controlling chemical catalysts with sculpted light

IMAGE: Depiction of the experimental setup where palladium nanorods lie atop gold nanobars. In this image, an electron beam is directed at the sample to watch the catalytic interactions between the… view more  Credit: Katherine Sytwu Like a person breaking up a cat fight, the role of catalysts in a chemical reaction is to hurry up […]

Engineers find a way to control chemical catalysts with sculpted light

Depiction of the experimental setup where palladium nanorods lie atop gold nanobars. In this image, an electron beam is directed at the sample to watch the catalytic interactions between the hydrogen molecules (in green) and the palladium catalyst. The light driving the illumination is shown in red. Credit: Katherine Sytwu Like a person breaking up […]

Controlling chemical catalysts with sculpted light — ScienceDaily

Like a person breaking up a cat fight, the role of catalysts in a chemical reaction is to hurry up the process — and come out of it intact. And, just as not every house in a neighborhood has someone willing to intervene in such a battle, not every part of a catalyst participates in […]

Hybrid chemical bonds are a mash-up of hydrogen and covalent bonds

fluorine atoms bonded to hydrogen atom

Chemistry students the world over are familiar with covalent bonds and hydrogen bonds. Now a study has revealed a strange variety of bond that acts like a hybrid of the two. Its properties raise questions about how chemical bonds are defined, chemists report in the Jan. 8 Science. Hydrogen bonds are typically thought of as […]

New type of ultra-strong chemical bond discovered

Scientists have recently discovered a totally new type of chemical bond — and it’s way stronger than it has any right to be. The new type of bond shows that the divide between powerful covalent bonds, which bind molecules together, and weak hydrogen bonds, which form between molecules and can be broken by something as […]

Glacier-dwelling bacteria thrive on chemical energy derived from rocks and water

Portage Glacier (right), Burns Glacier (center), and Shakespeare Glacier (left) in Southcentral Alaska, seen from the air. (USGS, Alaska Science Center/) In the darkness beneath glaciers, which range in thickness from less than a quarter mile to a full mile deep (or more), microbes cannot depend on sunlight for energy. Instead, many of these hardy […]

Newly described chemical reaction could have assembled DNA building blocks before life forms and their enzymes existed. — ScienceDaily

Chemists at Scripps Research have made a discovery that supports a surprising new view of how life originated on our planet. In a study published in the chemistry journal Angewandte Chemie, they demonstrated that a simple compound called diamidophosphate (DAP), which was plausibly present on Earth before life arose, could have chemically knitted together tiny […]