Researchers from the Institute of Process Engineering (IPE) of the Chinese Academy of Sciences and Nanjing Normal University recently reported a strategy for boosting the electrocatalytic performance of palladium (Pd) in ethanol oxidation reaction, thus propelling the development of direct ethanol fuel cells (DEFCs).
Scientists based at the University of Oxford as part of the Faraday Institution CATMAT project researching next-generation cathode materials have made a significant advance in understanding oxygen-redox processes involved in lithium-rich cathode materials. The paper, published in
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IMAGE: Co-authors on the oncohistone research and postdocs in Princeton s Muir Lab, John Bagert and Michelle Mitchener. view more
Credit: Photo by C. Todd Reichart
Researchers in the Muir Lab at Princeton University s Department of Chemistry have completed the first comprehensive analysis of cancer-associated histone mutations in the human genome, featuring both biochemical and cellular characterizations of these substrates. Their study reports that histone mutations that perturb nucleosome remodeling may contribute to the development or progression of a wide range of human cancers.
Within the human genome, DNA is wrapped around disc-shaped structures made up of eight histone proteins, each forming nucleosomes. Repeating nucleosome units comprise chromatin, a storehouse of genetic information that is both structured and dynamic. Broadly, the Muir Lab seeks to understand how chromatin controls genetic processes in the cell and how disruption of these processes
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IMAGE: 4D hydrogel-based materials can undergo multiple conformational shape changes in response to environmental cues view more
Credit: Aixiang Ding
Tissue engineering has long-depended on geometrically static scaffolds seeded with cells in the lab to create new tissues and even organs. The scaffolding material usually a biodegradable polymer structure is supplied with cells and the cells, if supplied with the right nutrients, then develop into tissue as the underlying scaffold biodegrades. But this model ignores the extraordinarily dynamic morphological processes that underlie the natural development of tissues.
Now, researchers at the University of Illinois Chicago have developed new 4D hydrogels 3D materials that have the ability to change shape over time in response to stimuli that can morph multiple times in a preprogrammed or on-demand manner in response to external trigger signals.
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IMAGE: New technology developed by Iowa State engineers uses heat and oxidation to recover pure and precious metals from electronic waste. It works in two ways it can bring the. view more
Credit: Photo courtesy of Martin Thuo/Iowa State University.
AMES, Iowa - Inspired by nature s work to build spiky structures in caves, engineers at Iowa State University have developed technology capable of recovering pure and precious metals from the alloys in our old phones and other electrical waste.
Using controlled applications of oxygen and relatively low temperatures, the engineers say they can dealloy a metal by slowly moving the most reactive components to the surface where they form stalagmite-like spikes of metal oxides.