In the steamy waters of Yellowstone National Parks hot springs lives a type of bacterium that could help make industrial bleaching cheaper and more environmentally friendly. Scientists have found Thermus brockianus bacteria produce a hardy enzyme that can be put to work breaking down hydrogen peroxide in industrial wastewater, producing only harmless oxygen and water as byproducts. Most important, the so-called extremozyme endures harsh industrial conditions better than currently available alternatives and lasts thousands of times longer.
R&D Magazine declared the isolation and production of the enzyme -- named the Ultrastable Catalase Enzyme by the Department of Energys Idaho National Engineering and Environmental Laboratory researchers who found it -- to be one of the 100 most significant technological achievements of 2004. Chemical engineer Vicki Thompson and biologists William Apel and Kastli Schaller from INEEL will be recognized at the R&D Magazine awards banquet in Chicago on Oct. 14, 2004.
"Its exciting that the R&D 100 chose a project involving extremophiles," Thompson says. "It will help spread the word about the practical applications and environmental benefits that can come from extremophilic research."
Regina Nuzzo | EurekAlert!
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Spectrally narrow x-ray pulses may be “sharpened” by purely mechanical means. This sounds surprisingly, but a team of theoretical and experimental physicists developed and realized such a method. It is based on fast motions, precisely synchronized with the pulses, of a target interacting with the x-ray light. Thereby, photons are redistributed within the x-ray pulse to the desired spectral region.
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Physicists working with researcher Oriol Romero-Isart devised a new simple scheme to theoretically generate arbitrarily short and focused electromagnetic fields. This new tool could be used for precise sensing and in microscopy.
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Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers
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Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.
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