In this Thursday, May 6, 2010 file photo, a radiologist uses a magnifying glass to check mammograms for breast cancer in Los Angeles. (AP Photo/Damian Dovarganes, File)
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A square sheet 4.8 by 4.8 centimeters (1.9 inches) in size has 144 locations that can measure pressure, said the research teams led by Tokyo University professor Takao Someya and Harvard University's Zhigang Suo.Many researchers are developing flexible pressure sensors but they are vulnerable when bent and twisted, which makes it difficult to detect pressure changes accurately, the Tokyo University and Harvard researchers say.The nanofiber pressure sensor they have developed can be bent over a radius of as small as 80 micrometers – "equivalent to just twice the width of a human hair" – they say.
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