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New technology that allows cancer proteins to be analysed in tiny samples could spell the end of surgical biopsies, which involve removing lumps of tissue, often under general anaesthetic.
Researchers at Stanford University, California, have developed a machine that separates cancer-associated proteins by means of their electric charge, which varies according to modifications on the protein’s surface.
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http://www.timesonline.co.uk/tol/news/uk/science/article6082812.ece