Optoelectronic tweezers

Using projected light patterns to form virtual electrodes on a photosensitive substrate, optoelectronic tweezers are able to grab and move micro- and nanoscale objects at will, facilitating applications far beyond biology and colloidal science.

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Figure 1: Optoelectronic tweezers.
Figure 2: Phototransistor-based optoelectronic tweezers.

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Correspondence to Ming C Wu.

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Wu, M. Optoelectronic tweezers. Nature Photon 5, 322–324 (2011). https://doi.org/10.1038/nphoton.2011.98

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