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2009-11-03 08:04:39

Database details 2.7 million possible structures for molecular sieves In all the world, there are about 200 types of zeolite, a compound of silicon, aluminum and oxygen that gives civilization such things as laundry detergent, kitty litter and gasoline. But thanks to computations by Rice University professor Michael Deem and his colleagues, it appears there are -- or could be -- more types of zeolites than once thought. A lot more. A project that goes back 20 years came to fruition earlier...

2009-09-08 09:18:00

NEW YORK, Sept. 8 /PRNewswire/ -- Reportlinker.com announces that a new market research report is available in its catalogue. Nanoporous Materials http://www.reportlinker.com/p0131238/Nanoporous-Materials.html This report analyzes the Global Market for Nanoporous Materials in Millions of US$. The report analyzes the market for Nanoporous (Microporous) Materials by the following product segments: Zeolites, Activated Carbon, Silica Gel, Activated Alumina, Clays, and Others. Annual...

2009-08-03 11:10:00

Thin-film zeolite membranes with tiny, molecule-sized pores are one step closer to replacing the energy-intensive processes now used in industrial separations, a group of academic researchers is reporting.Writing this week in Science magazine, the group says the membranes' ability to separate molecules in a mixture is significantly improved by subjecting the zeolite to rapid thermal processing (RTP). By heating the membranes from room temperature to 700 degrees Centigrade in one minute,...

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2009-07-30 15:30:00

Engineers have developed a new method for creating high-performance membranes from crystal sieves called zeolites; the method could increase the energy efficiency of chemical separations up to 50 times over conventional methods and enable higher production rates.The ability to separate and purify specific molecules in a chemical mixture is essential to chemical manufacturing. Many industrial separations rely on distillation, a process that is easy to design and implement but consumes a lot of...

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2009-06-16 15:20:00

Now researchers at the University of Washington are using the same principle for biomedical applications. Mixing chitosan, found in the shells of crabs and shrimp, with an industrial polyester creates a promising new material for the tiny tubes that support repair of a severed nerve, and could serve other medical uses. The hybrid fiber combines the biologically favorable qualities of the natural material with the mechanical strength of the synthetic polymer."A nerve guide requires very strict...

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2009-03-13 07:00:00

Scratches on an otherwise perfect looking vehicle can be a real annoyance for car owners, but scientists have developed a polyurethane coating that heals its own scratches when exposed to sunlight."We developed a polymeric material that is able to repair itself by exposure to the sun," said Marek Urban of the University of Southern Mississippi in Hattiesburg. The findings are published in the journal Science.The report says the self-healing coating uses chitosan. It's a substance found in the...

2009-02-18 09:06:25

A research project at Rice University has brought scientists to the brink of comprehending a long-standing medical mystery that may link cardiovascular disease, osteoporosis and perhaps even Alzheimer's disease. And for that, we can thank the rat.The recent paper in Artery Research by Rice evolutionary biologist Michael Kohn and his team reports they have found that common rats with a genetic mutation have developed a resistance to rat poison, aka warfarin. That's good news for the rats,...

2008-10-31 15:00:26

Vitamin E has been found to decrease cardiovascular risk, but high doses of vitamin E also result in an increase in nose bleeds, U.S. researchers said. Maret Traber of Oregon State University said that vitamin E has been heralded for its ability to reduce the risk of blood clots, heart attack and sudden death, however, vitamin E promotes bleeding by interfering with vitamin K, which is essential in blood clotting. Traber reviewed vitamin E studies and said one of the most compelling...

2008-10-21 06:00:23

Rive Technology, a developer of catalyst technology for the petroleum refining industry, has announced that it will commence operations of a 10,000-square-foot R&D facility in Monmouth Junction, New Jersey in November 2008. Rive Technology said that it develops proprietary zeolite catalyst technology that expands characteristically small zeolite pores to enable the conversion of inexpensive, heavy crude oil into valuable, refined products such as transportation fuel. Larry Evans,...

2008-10-17 03:00:05

A high daily dose of a vitamin K supplement did not protect against age-related bone mineral density decline, Canadian researchers said. However, it may help with preventing fractures or cancers, study leader Angela Cheung said. In a randomized controlled trial, Cheung and colleagues at the University of Toronto had 440 postmenopausal women with osteopenia -- bone mineral density lower than normal -- to receive either 5 mg of vitamin K or a placebo daily for two years. Two hundred and...


Word of the Day
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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