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DNA Research

Research from Johns Hopkins University yields new data on DNA research

Published in Cancer Weekly, May 25th, 2010

According to a study from the United States, "Circulating nucleic acid (CNA) has been the focus of recent research as a noninvasive source of biomarker candidates. Among these markers, DNA fragment size has shown promise for discerning the source of CNA molecules in cancer and prenatal diagnostics."

"We have developed a one-step assay for analyzing circulating DNA size and quantity directly in human serum. Microfluidic cylindrical illumination confocal spectroscopy and fluorescence burst size analysis are used to individually count and size fluorescently-labeled CNA molecules as they are driven through a microfluidic constriction. First, single molecule sizing was...

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