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February 2013 story tips from Oak Ridge National Laboratory
Date:2/4/2013

HEALTH Neutron imaging breast cancer . . .

More precise optical imaging is vital for better diagnosis of breast cancer, which strikes one in eight women annually in the United States alone. Researchers at Oak Ridge National Laboratory and the University of Tennessee are using the neutron imaging beam line at ORNL's High Flux Isotope Reactor to evaluate neutron imaging as a powerful new tool for early detection. The study, led by Dr. Maria Cekanova of UT, working with imaging instrument scientist Hassina Bilheux, is using tissue from dogs treated at the UT College of Veterinary Medicine. Canine cancers have a similar composition to human cancers, and researchers noted that no animals were hurt or euthanized for this study. [Contact: Agatha Bardoel, (865) 574-0644; bardoelaa@ornl.gov]

MATERIALS Grand-scale graphene . . .

In the race to make graphene available for flexible touch screens, smart phones, flat-panel displays, solar panels and more, researchers at Oak Ridge National Laboratory and New Mexico State University have produced a graphene sheet 40 inches in diagonal. This sheet, the largest demonstration in the United States, was made using an atmospheric pressure setup that eliminated significant difficulties with the approach previously used, known as low-pressure chemical vapor deposition. Team leader Ivan Vlassiouk noted the achievement represents a major step toward the goal of industrial roll-to-roll graphene manufacturing that could produce literally miles of graphene. The process is highlighted in a paper titled "Large scale atmospheric pressure chemical vapor deposition of graphene" published in the journal Carbon. The paper is available at http://dx.doi.org/10.1016/j.carbon.2012.11.003. [Contact: Ron Walli, (865) 576-0226; wallira@ornl.gov]


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Contact: Ron Walli
wallira@ornl.gov
865-576-0226
DOE/Oak Ridge National Laboratory
Source:Eurekalert

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