Journal
APPLIED PHYSICS LETTERS
Volume 89, Issue 14, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2358820
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An optically driven lobed micropump was developed using three-dimensional two-photon microfabrication. The two built-in rotors, 9 mu m in diameter, are cooperatively driven by means of time-divided scanning of a single laser beam. It was demonstrated that a tracer particle was moved by simultaneously rotating the two rotors. The velocity of the tracer particle was proportional to the rotation speed of the rotors in the range of 0.2-0.7 mu m/s. The flow rate was estimated to be sub-pL/min level. This ultralow flow rate will be useful for further integration and miniaturization of micro-total-analysis systems. (c) 2006 American Institute of Physics.
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