Light-induced DNA detection enables more affordable, ultra-sensitive/ precise, ultra-fast genetic analysis without need for PCR amplification

https://www.eurekalert.org/news-releases/1081114

"avoids PCR testing's centralized labs, bulky equipment, specially trained personnel... directly detects DNA by concentrating it enhancing specificity through strong optical forces/ photothermal effect... gold nanoparticle/ polystyrene microparticle short DNA sequence probes bind matching strands together, detectable through 5 minute fluorescence mutation detection with 1 order magnitude higher sensitivity than PCR... diagnosing infectious disease/ early-stage cancer, analyzing food safety/ environmental DNA"