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Latest Photochemistry Stories

2011-04-14 10:14:00

KARLSRUHE, Germany, April 14, 2011 /PRNewswire/ -- The exploitation and utilization of new energy sources are considered to be among today's major challenges. Solar energy plays a central role, and its direct conversion into chemical energy, for example hydrogen generation by water splitting, is one of its interesting variants. Titanium oxide-based photocatalysis is the presently most efficient, yet little understood conversion process. In cooperation with colleagues from Germany and...

2011-01-28 22:21:05

Research could lead to cheap, clean ways to produce hydrogen for use in fuel cells A little disorder goes a long way, especially when it comes to harnessing the sun's energy. Scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) jumbled the atomic structure of the surface layer of titanium dioxide nanocrystals, creating a catalyst that is both long lasting and more efficient than most materials in using the sun's energy to extract hydrogen from...

2011-01-25 00:02:24

The first evaluation of air-purifying asphalt and concrete photocatalytic pavements in America was announced today by PURETI Inc., a US-based manufacturer of air-purifying, photocatalytic surface treatments, together with LSU Assistant Professor of Construction Management & Industrial Engineering Marwa Hassan. Photocatalysis is a proven technology "“ most simply described as the opposite of photosynthesis "“ that uses light and a common earth mineral (titanium dioxide) to...

2010-05-24 16:24:00

From William D. James, MD, FAAD, president, American Academy of Dermatology CHICAGO, May 24 /PRNewswire-USNewswire/ -- Sunscreen active ingredients, which are compounds that absorb, scatter or reflect ultraviolet (UV) light, are regulated as over-the-counter (OTC) drugs by the U.S. Food and Drug Administration (FDA). The FDA is currently addressing requirements for UVA coverage in sunscreens and considering sunscreen labeling changes to help the public make knowledgeable decisions about...

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2010-03-14 11:01:25

Nanoparticles provide a targeted version of photothermal therapy for cancer In a lecture he delivered in 1906, the German physician Paul Ehrlich coined the term Zuberkugel, or "magic bullet," as shorthand for a highly targeted medical treatment. Magic bullets, also called silver bullets, because of the folkloric belief that only silver bullets can kill supernatural creatures, remain the goal of drug development efforts today. A team of scientists at Washington University in St. Louis is...

2010-01-19 19:34:48

In the battle against bacteria, researchers at the University of Illinois have developed a powerful new weapon "“ an enhanced photocatalytic disinfection process that uses visible light to destroy harmful bacteria and viruses, even in the dark. Based upon a new catalyst, the disinfection process can be used to purify drinking water, sanitize surgical instruments and remove unwanted fingerprints from delicate electrical and optical components. "The new catalyst also has a unique...

2009-09-14 07:00:00

PHOENIX, Sept. 14 /PRNewswire/ -- RoseStreet Labs Energy (RSLE) scientists announced a leap forward in generating hydrogen gas directly from sunlight by a photoelectrochemical cell (PEC). This hydrogen fuel is generated spontaneously in a single device without external power and without petroleum products such as natural gas. Hydrogen gas is a key resource for next generation hydrogen fueled cars, and also a key component in the renewable process of harvesting biofuels and biodiesel for...

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2009-09-09 14:09:51

In an advance toward better treatments for the most serious form of brain cancer, scientists in Illinois are reporting development of the first nanoparticles that seek out and destroy brain cancer cells without damaging nearby healthy cells. The study is scheduled for the Sept. 9 issue of ACS' Nano Letters, a monthly journal. Elena Rozhkova and colleagues note the pressing need for new ways to treat the disease, glioblastoma multiforme (GBM), which often causes death within months of...

2009-03-24 10:57:15

University of California-Santa Cruz scientists say they have developed a metal nanostructure that shows medical, chemical and biological promise. The hollow gold nanospheres developed by UCSC Professor Jin Zhang and his colleagues at the University of Texas M.D. Anderson Cancer Center can, among other things, target tumors for photothermal therapy. What makes this structure special is the combination of the spherical shape, the small size and the strong absorption in visible and near infrared...

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2009-03-11 09:53:48

Berkeley Lab Researchers Create a Nano-sized Photocatalyst for Artificial Photosynthesis For millions of years, green plants have employed photosynthesis to capture energy from sunlight and convert it into electrochemical energy. A goal of scientists has been to develop an artificial version of photosynthesis that can be used to produce liquid fuels from carbon dioxide and water. Researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have now...


Latest Photochemistry Reference Libraries

Photochemical & Photobiological Sciences
2012-05-28 10:25:06

Photochemical & Photobiological Sciences (PPS) is a peer-reviewed scientific journal published monthly by the Royal Society of Chemistry and is the official journal of the European Photochemistry Association, The European Society for Photobiology, the Asia and Oceania Society for Photobiology and the Korean Society of Photoscience. As of May 2012, the editors-in-chief are Frans de Schryver and Rex Tyrell. The journal covers numerous areas including: Applied photochemistry, Atmospheric...

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