NANOPARTICULES AND CRIME SCENES

Tiny particles of gold could soon be helping to spot viruses, bacteria and toxins

Researchers in the UK have found that gold nanoparticles are very effective detectors of biological toxins.

The particles reveal the presence of poisons far faster than existing techniques which often involve shipping samples back to a lab.

The aim is to integrate the technology in a portable device that could give instant answers at crime scenes.