IT'S harder than finding a needle in a haystack. Unusual or rare cells, such as those that cause the spread of cancer, are difficult to isolate from thousands of other cells in a sample.

Now a ne read more »

Carbon nanotubes, the poster child of the burgeoning nanotechnology industry, could trigger diseases similar to those caused by asbestos, a study suggests.

Specific lengths of the tiny fibres were read more »