How a phone could instantly detect malaria

At just a few hundred nanometers thick, the new diagnostic device fits on top of the camera lens

Infectious diseases such as malaria remain a leading cause of death in many regions.

This is partly because people there don’t have access to medical diagnostic tools that can detect these diseases (along with a range of non-infectious diseases) at an early stage, when there is more scope for treatment.

It’s a challenge scientists have risen to, with a goal to democratise healthcare for economically disadvantaged people the world over.

My colleagues and I have developed