Tiny gold probes to help track disease

Once the probe is inside a cell, laser light shone on to it is absorbed then re-emitted, causing nearby proteins in the cell to vibrate according to their shape.

Further studies will look at diseases linked to the immune system in the first instance, but researchers say the technique has potential to help doctors diagnose and monitor a range of conditions.

By creating a sensor that can safely be implanted into tissue and combining this with a sensitive light-measurement technique, we have developed a useful device that will help diagnose and track disease in patients.


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