Chemistry and biology researchers at Virginia Tech have enhanced the abilities of the molecules they are creating to deliver killing blows to cancer cells. The man-made molecular complexes enter cancer cells and, when signaled, deliver killing medicine or cause the cell to change. The new supermolecules have more units that will absorb light – providing more control over the range of light frequencies that can be included and excluded as signals and the responses.
Karen Brewer, professor of chemistry, will give an invited talk, and her students will present a number of posters at the American Chemical Society (ACS) 230th annual meeting in Washington, D.C., Aug. 28 through Sept. 1 to explain their discoveries and applications.
Many scientists are racing to create ways to deliver cancer-killing drugs to tumors without harming surrounding tissue. At ACS meetings in August 2004 and March 2005, Brewer and her team announced the creation of molecular assemblies that solved two challenges facing photodynamic therapy, or activating drug delivery devices with light. The Brewer groups systems could be activated by visible light in the therapeutic range – a wavelength not blocked or reflected by tissue. The systems also were able to operate without oxygen.
Susan Trulove | EurekAlert!
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The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.
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Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...
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