Scientists have developed a tiny microscope – the width of a human hair – which they say could “revolutionise” the examination of biological samples.

Cardiff University researchers, lead Professor Paul Smith, said the optical biochip could help doctors test for diseases and develop new drugs. The team is looking to integrate the biochip into medical technology, such as diagnostic equipment.

The biochip, developed with a GBP2.2m grant, works by emitting tiny lasers which analyse a cell. Biological samples can be placed on the biochip – just visible to the human eye – which then relays what it finds via an electrical signal. Future generations may even be able to use these as the basis for hand-held system.

In theory, the biochip could detect diseases such as HIV, malaria and some cancers, or aid drug development by analysing how a cell reacts to a substance.

Link: BBC Health.