Latest Physical chemistry Stories

Work inspired by curly leaves Inspired by nature's ability to shape a petal, and building on simple techniques used in photolithography and printing, researchers at the University of Massachusetts Amherst have developed a new tool for manufacturing three-dimensional shapes easily and cheaply, to aid advances in biomedicine, robotics and tunable micro-optics. Ryan Hayward, Christian Santangelo and colleagues describe their new method of halftone gel lithography for photo-patterning...

[ Watch the Video ] University of California, San Diego bioengineers have developed a self-healing hydrogel that binds in seconds, as easily as Velcro, and forms a bond strong enough to withstand repeated stretching. The material has numerous potential applications, including medical sutures, targeted drug delivery, industrial sealants and self-healing plastics, a team of UC San Diego Jacobs School of Engineering researchers reported March 5 in the online Early Edition of the Proceedings...

University of California, San Diego researchers have developed a new injectable hydrogel that could be an effective and safe treatment for tissue damage caused by heart attacks. The study by Karen Christman and colleagues appears in the Feb. 21 issue of the Journal of the American College of Cardiology. Christman is a professor in the Department of Bioengineering at the UC San Diego Jacobs School of Engineering and has co-founded a company, Ventrix, Inc., to bring the gel to clinical...

ATLANTA, Jan. 25, 2012 /PRNewswire/ -- James W. Johnston and Cornel Hagiopol, Ph. D., two Georgia-Pacific (GP) Chemicals employees, have recently authored a comprehensive review of the papermaking process. Written from the chemist's perspective, The Chemistry of Modern Papermaking is intended to supply researchers, developers and end-users with updated information on the literature of papermaking chemistry. Supported by more than 3000 references of patents and scientific articles...

Johns Hopkins researchers have developed a jelly-like material and wound treatment method that, in early experiments on skin damaged by severe burns, appeared to regenerate healthy, scar-free tissue. In the Dec. 12-16 online Early Edition of Proceedings of the National Academy of Sciences, the researchers reported their promising results from mouse tissue tests. The new treatment has not yet been tested on human patients. But the researchers say the procedure, which promotes the formation...

For anyone who has experienced the discomfort of bunions or corns on their feet, relief can probably not come soon enough. Maddak Inc., manufacturer of Ableware® aids for daily living, has recently added Silopos® Gel Products to their line. Pequannock, NJ (PRWEB) December 08, 2011 For anyone who has experienced the discomfort of bunions or corns on their feet, relief can probably not come soon enough. Maddak Inc., manufacturer of Ableware® aids for daily living, has...

A cheap material that can store heat energy collected from the sun during the day that can be released slowly over night has been developed by researchers in the India. The material based on paraffin wax and stearic acid is described in a forthcoming issue of the International Journal of Renewable Energy Technology and could help keep homes warm in sunny parts of the world that get very cold at night without burning wood or fossil fuels. Mechanical engineer Meenakshi Reddy of Sri...

Clouds affected by spikes in air pollution levels can lead to reduced precipitation during dry conditions, as well as increased rain and snow during times and in places already being affected by severe storms, claims a new study published Sunday in the journal Nature Geoscience. The study, which was led by University of Maryland Professor of Atmospheric and Oceanic Science Zhanqing Li, claims to provide "the first clear evidence of how aerosols -- soot, dust and other small particles in...

Experimental confirmation of a fundamental physical theorem The so-called ergodic theorem formulates a fundamental physical principle relating to the behavior of dynamical systems. Essentially the theorem states that in a multiparticle system each individual particle behaves just as “chaotically” as does the system as a whole. In other words, one can extrapolate from the behavior of a single element to that of the whole system. Strangely enough, in spite of its wide-ranging...

KIT Technology Significantly Reduces Production Costs of Lithium-ion Cells The latest development by engineers of KIT is inspired by nature. To fill the porous electrodes of lithium-ion batteries more rapidly with liquid electrolyte, they use a physicochemical effect that also provides water transport in trees. The new process increases the throughput of battery production and reduces investment costs. This and other innovations will be presented by KIT at the eCarTec International...