WASHINGTON--(BUSINESS WIRE)--If you thought scanning one of those strange, square QR codes with your phone was somewhat advanced, hold on to your seat. Researchers at the University of California, Los Angeles (UCLA) have recently developed a device that can turn any smartphone into a DNA-scanning fluorescent microscope. "A single DNA molecule, once stretched, is about two nanometers in width," said Aydogan Ozcan, HHMI Chancellor Professor, UCLA. “For perspective, that makes DNA about 50,000 tim