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Clued into infrared forensics Crime scene investigators detect forgeries and counterfeits and trace the origins of all kinds of materials using infrared light. Now forensics enters new territory with synchrotron infrared from the Advanced Light Source, helping the Secret Service characterize ink on paper and analyzing chemical "sweatprints," as unique and ubiquitous as physical fingerprints. A hook
to knit damaged DNA Researchers have discovered a metal-mediated interface between proteins, the "zinc hook" the essential Mre11/Rad50 complex uses to link broken DNA strands so they can be rejoined. It's the first major result of the multi-institutional Structural Cell Biology of DNA Repair Machines project, aimed at understanding DNA repair at every level. Geology on the nanoscale |
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