LUCAS

Professor Aydogan Ozcan of UCLA has taken a typical Sony Ericsson phone, and by adding a few off-the-shelf parts that cost less than $50, he can get it to produce a remarkable image that shows the thousands of cells in a small fluid sample such as human blood.

The device is called LUCAS, which stands for lensless ultra-wide-field cell monitoring array platform based on shadow imaging. It uses a short wavelength blue light to illuminate a sample of liquid -- blood, saliva or another fluid -- on a laboratory slide.

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