We can test the quality and freshness of fruits and vegetables with our fingers, and even industrial robots have been performing successfully at tactile applications for years. But how is it possible to grab and rotate objects with the width of a human hair? Prof. Dr. Alexander Rohrbach from the University of Freiburg’s Department of Microsystems Engineering and his team have now published a study on this question in the journal Nature Communications. Their work demonstrates how several optical tweezers made of highly focused laser light will one day be able to grab cell clusters in a controlled manner and rotate them in any desired direction. This will allow tiny objects like miniature tumors to be studied more specifically under the microscope.
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Source: Phys.org