Nanotechnology and Harnessing 'Micro-Oxen'

A paper published this week in the Proceedings of the National Academy of Sciences describes a way to use tiny algae as beasts of burden, hitching tiny beads to them like loads attached to a team of "micro-oxen."

Guest:

George Whitesides, Woodford L. and Ann A. Flowers University Professor in the Department of Chemistry and Chemical Biology at Harvard University in Cambridge, Mass.

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