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Lofty Thought of the Day
- Category: Science & Technology
Dec 16, 2009 - nzherald.co.nz New Zealand scientists have developed tiny "light" particles that can seek out and destroy cancer cells.
Victoria University synthetic chemist Richard Tilley said researchers had established the tools to detect cancer when it was at the stage of a single diseased cell - well ahead of some MRI scans which cannot identify tumours until they are about 2.5 centimetres wide.
"This will mean earlier detection, so it could lead to a better chance of survival," he told the Dominion Post.
After nearly six years the researchers found a way to make tiny silicon particles, or "quantum dots", that gave out light and could be sent safely into the body.
They also found a way to bind the quantum dot to a cancerous cell, so the cell could be found.
The dot could also have drugs attached to it, which could treat the cancer in a targeted way.
Similar particles had been made overseas before but only from toxic chemicals.
The president of the Institute of Chemistry, John Spencer, said the results were a result of combining the skills of different experts. Dr Tilley worked with scientists at the Crown research institute Industrial Research Limited, the Malaghan Institute and MacDiarmid Institute research centres...MORE...
