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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.
Wednesday, July 15, 2015
We asked readers to weigh in on the fossil fuel-green energy equation.
Thursday, July 30, 2015
Activists have suspended themselves from the St. Johns Bridge in Portland, slowing an icebreaker's departure for the Arctic.
Friday, July 17, 2015
Photographer Jason Kaplan takes a look at Murray's Pharmacy in Heppner. The family owned business is run by John and Ann Murray, who were featured in our July/August cover story: 10 Innovators in Rural Health Care.
Tuesday, June 23, 2015
Oregon’s new marijuana law is expected to lead to a bevy of new business opportunities for the state. And not just for growers. Law firms, HR consultants, energy efficiency companies and many others are expected to benefit from the decriminalization of pot, according to panelists at an Oregon Business breakfast meeting on Tuesday.
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.
Wednesday, June 17, 2015
Monday, July 13, 2015
BY CHRIS NOBLE
Whether you're stepping out to work or onto the track, Pacific Northwest shoe companies have you covered.
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|Downtime with Debra Ringold|
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|Economy's growth disappoints analysts|
|Portland fireworks hotline overloaded by call volume|
|Rolling Stone magazine sued by UVA frat brothers|
|'Kayaktivists' hang from St. Johns Bridge to protest Shell Oil ship|
|Legal pot sales to start Oct. 1 in Oregon|
|Best Buy will sell Apple Watch, is hoping it boosts sales|
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