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|Articles - June 2012|
|Tuesday, May 29, 2012|
BY CORY MIMMS
Surgeons sometimes leave things inside patients — needles, scissors, even scalpels. Those items easily show up on X-rays, allowing doctors to find and remove them. But not surgical sponges. They require extra precaution; most sponges are marked with barium, which is difficult to see on X-rays. Portland State University chemistry professor Andrea Goforth and her graduate assistant, Anna Brown, have developed a better way to tag sponges using bismuth. Denser than lead and nontoxic, bismuth nanoparticles are perfect X-ray deflectors, and by infusing them in silicone they can be stitched into surgical sponges. “The heavier the atoms the better they scatter X-rays,” Goforth says. These bismuth markers — bismarkers — show up bright white on X-rays, making them practically impossible to miss. The preliminary patent application was filed last June and Goforth now is seeking an industry partner for the next stage of development: manufacturing, marketing and selling. She isn't finished with her bismuth research, though. “My original concept was that these would be injectable contrast agents,” Goforth says. By modifying them to bind with certain types of cells and then injecting them into the bloodstream, the particles could be used to find tumors.
Friday, July 10, 2015
BY JOE CORTRIGHT
The false promise of economic impact statements.
Tuesday, July 28, 2015
Uncertainty in Greece and China, along with potential interest rate hikes mean investors are looking at the market and nervously questioning where they should be invested.
Wednesday, July 15, 2015
Former Governor John Kitzhaber's resignation in February prompted some soul searching in this state about ethical behavior in industry and government.
Monday, July 13, 2015
BY JACOB PALMER
Dean of the Atkinson Graduate School of Management, Willamette University
Wednesday, June 10, 2015
Jeff Lang and his wife Rae used to dole out campaign checks like candy. “We were like alcoholics,” Lang says. ”We couldn’t just give a little.”
Monday, July 13, 2015
BY KIM MOORE
Revenues in Oregon's private, for profit sector maintained solid growth as the economy continued to rebound.
Monday, July 06, 2015
Picking a business partner is not much different than choosing a spouse or life partner, and the business break-up can be as heart-wrenching and costly as divorce.
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