Abstract
Contact-free handling, trapping and precise transfer of small polarizable neutral objects in solution based on dielectrophoresis is demonstrated. Laser-direct-write-created concentric aluminum ring electrode microcages are generated coaxially on top of a glass capillary that enables the direct, fast and precise transfer of specimens to and from the cage’s trapping region. In this way, aggregates of pre-selected and desired size can be formed as demonstrated for pairs, triples and also larger clusters. Using a combination of two traps, which can freely be positioned with respect to each other, pairs of objects can be separated, keeping one of the constituents trapped.
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85.85.+j; 42.62.Be; 42.62.-b; 47.60.+i; 77.22.-d; 81.05.-z
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Stuke, M., Mueller, K., Mueller, T. et al. Laser-direct-write creation of three-dimensional OREST microcages for contact-free trapping, handling and transfer of small polarizable neutral objects in solution. Appl. Phys. A 81, 915–922 (2005). https://doi.org/10.1007/s00339-005-3280-7
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DOI: https://doi.org/10.1007/s00339-005-3280-7