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An alphabet too small to read without a microscope

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At the University of California, Los Angeles, researchers have developed a method for producing colloidal dispersions of letter-shaped microscopic particles. The structures may have application in cell biology and in studies of thermodynamic self-assembly, and the technique can be modified to create nanoscale particles as well. To manufacture the structures — called LithoParticles — the scientists used automated stepper UV lithography. Past efforts to create monodisperse colloids with other bottom-up techniques produced a limited number of geometric shapes, but none as complex as letters....Read full article

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    Published: April 2007
    As We Go To PressBiophotonicsBreaking Newsindustrialmicroscopic particlesMicroscopyPresstime Bulletinthermodynamic self-assemblyUV lithography

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