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UCLA scientists have created billions of fluorescent microscale "LithoParticles" shaped like alphabet letters in a liquid solution.
The letters demonstrate "the power of a new method, at the microscale, to create objects of precisely designed shapes that are highly uniform in size," says Thomas Mason, a UCLA chemistry professor and a member of the university's California NanoSystems Institute. The research could lead to the development of tiny pumps, medical motors and containers, and security applications, Mason says.
Meantime, the scientists are playing a microscale Scrabble with laser tweezers.