Journal
NANO LETTERS
Volume 13, Issue 9, Pages 4230-4235Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl401922p
Keywords
Optical sorting; metallic nanoparticles; Mie theory; thermo-hydrodynamical forces; plasmofluidics; Brownian motion
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Funding
- ERG [227557]
- Agence Nationale de la Recherche (ANR, Equipex Union)
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We exploit plasmonic and thermo-hydrodynamical forces to sort gold nanoparticles in a microfluidic environment. In the appropriate regime, the experimental data extracted from a Brownian statistical analysis of the kinetic motions are in good agreement with Mie-type theoretical evaluations of the optical forces acting on the nanoparticles in the plasmonic near field. This analysis enables us to demonstrate the importance of thermal and hydrodynamical effects in a sorting perspective.
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