New technology developed by UC Berkeley bioengineers promises to make a workhorse lab tool cheaper, more portable and many times faster by accelerating the heating and cooling of genetic samples with the switch of a light.
This turbocharged thermal cycling, described in a paper published in the journal Light: Science & Application, greatly expands the clinical and research applications of the polymerase chain reaction (PCR) test, with results ready in minutes instead of an hour or more.
read more at : http://www.forensicmag.com/news/2015/08/heating-and-cooling-light-leads-ultrafast-dna-diagnostics
DNA Double Helix