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Page last updated at 07:48 GMT, Friday, 8 January 2010

Nano technology 'will be huge'

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Food companies are being urged to be more open about their secret research into potentially harmful nano technology.

The Lords Science and Technology Select Committee is concerned that the potentially harmful particles are being used to improve the flavour, texture and shelf-life of foods.

Lord Krebs, the committee's chair, and Julian Hunt, director of communications at the Food and Drink Federation, debate the use of nano technology in food.

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