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About Oregon daily emerald. (Eugene, Or.) 1920-2012 | View Entire Issue (Nov. 29, 2004)
$399 with Boots & Bindings jRjF M Packages include Free Mounting & Free Hot Wax 13th & Lawrence • Eugene • 683-1300 . 13th & Lawrence • 683-1300 www.bergsskishop.com The North Face Denali Jacket Men's & women's Reg. $165 Angela Adams‘White & Warren • Mitzi Ben Sherman‘Three Dots‘Angela Adams‘White & Warren • Mitzi Baker t Accessorize... B O U X 541.485.4891 2827 Oak St. , ;- www.boux.com • 10:30-5:30 Monday-Friday • 11-4 Saturday • rnn^mriinamnnnnBramrafiniim QiiaaaiiDniaBB Find fun stuff in the ODE Classifieds: Comics, your daily horoscope, and, of course, the crossword. Walker Bags • Ben Sherman • Three Dots New technology may rid drinking water of arsenic Researchers have developed molecules that trap and immobilize the poison in an affordable manner “The reason our molecule is fairly effective is we use this tool of self-as sembly,” Johnson said. Self-assemblv is compared in the BY THOMAS MU NRO DAILY EMERALD FREELANCE REPORTER A group of University researchers has made a step toward effective, af fordable technology to treat arsenic poisoning and lower arsenic levels in the world’s drinking water. The re searchers developed molecules that trap and immobilize atoms of the heavy metal. Assistant professor of chemistry Darren Johnson and doctoral student Jake Vickaryous published their work in the Nov. 5 issue of Angewandte Chemie International Edition, the world’s leading chemistry journal, ac cording to a University press release. Johnson said he was attracted to the arsenic problem by the lack of basic re search into the heavy metal. “Arsenic is synonymous with poi son, but we don’t have great ways to treat it,” Johnson said. When Johnson joined the Universi ty faculty a year and a half ago, he said he was eager to fight this health haz ard. According to a 2001 Environmen tal Protection Agency report, arsenic in drinking water has been conclusively linked to bladder and lung cancer. It may also increase the risk of high blood pressure and diabetes. Removal of this dangerous heavy metal has proved a difficult technolog ical problem. Important work was done at Sandia National Laboratories in New Mexico, which announced in 2001 the development of “new chemi cals with flypaper-like arsenic-trapping properties,” according to a Sandia press release. However, prohibitive costs and other concerns held back this technology. Johnson, like his Sandia predeces sors, began his molecule design on a computer. He aimed to find a “design strategy to specifically interact with ar senic ions.” He was aided by Rainer Herges, a computational chemist at the University of Kiel in Germany. Johnson said doctoral student Vickaryous was responsible for most of the research work. He described him as “a fantastic graduate student who has really taken this project in the direction he wanted to go. ” The two created molecules known as chelators, a word that derives from the Greek for “crab claw. ” Chelators wrap themselves around heavy metal atoms, in this case forming a pyramid like molecule, according to the Univer sity press release. Johnson and Vickaryous created an effective arsenic trap that also prom ised to be relatively inexpensive. University press release to “a puzzle that puts itself together.” This means that there is no need to directly assem ble each molecule. This groundbreaking basic research will have application in the study of the other heavy metals, including mer cury, Johnson said. The next step in Johnson’s research will be to create a water-soluble ver sion that could have medical applica tions. He can also look into integrating the molecules into an extraction agent for use in groundwater. “It would be great if someone could develop a better drug for arsenic or a better way to remove it from the envi ronment,” Johnson said. Much work lies between Johnson and Vickaryous’ paper and a useable technology. Research must be done to determine the heath effects of the mol ecules produced by the chelation. The relative speed and effectiveness of ab sorption of the new chelators and the tissues of the human body must also be investigated, Johnson said. According to the University press re lease, “Roughly 10 percent of U.S. groundwater contains arsenic concen trations above 10 ppb,” the maximum level allowed by the EPA. The work of Johnson and Vickaryous may some day improve this dangerous situation. Don’t-Do-lt-Yourself Directory PROFESSIONAL SERVICE PROVIDERS LISTED HERE EVERY MONDAY ARTS & CRAFTS Harlequin Beads & Jewlery 1027 Willamete St. 683-5903. www.harleauinbeads.com. 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