A close-up of part of the fiber optical tweezers developed by a research team at Worcester Polytechnic Institute (WPI). The two fibers seen here project intersecting beams of laser light to create a three-dimensional optical trap that can hold and move individual cells. Credit: Worcester Polytechnic Institute (WPI)
A team of researchers at Worcester Polytechnic Institute (WPI) has demonstrated how a device that uses beams of light to grip and manipulate tiny objects, including individual cells, can be miniaturized, opening the door to creating portable devices small enough to be inserted into the bloodstream to trap individual cancer cells and diagnose cancer in its earliest stages.
The technique, known as optical tweezers, uses optical beams of laser light to create an attractive force fi...
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