Researchers developed a hybrid microfluidic–optical trapping device to trap and transport very small nanoparticles and DNA molecules.
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References
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Yang, A.H.J. et al. Optical manipulation of nanoparticles and biomolecules in sub-wavelength slot waveguides. Nature 457, 71–75 (2009).
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Doerr, A. Setting a nanoparticle trap. Nat Methods 6, 190 (2009). https://doi.org/10.1038/nmeth0309-190
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DOI: https://doi.org/10.1038/nmeth0309-190