Thermophoretic tweezers for single nanoparticle manipulation.
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ABSTRACT:
SUBMITTER: Stergar J
PROVIDER: S-EPMC7404219 | biostudies-literature | 2020
REPOSITORIES: biostudies-literature
Publications
Thermophoretic tweezers for single nanoparticle manipulation.
Stergar Jošt J Osterman Natan N
Beilstein journal of nanotechnology 20200730
We present the trapping and manipulation of a single nano-object in an aqueous medium by optically induced temporally varying temperature gradients. By real-time object tracking and control of the position of the heating laser focus, we can precisely employ thermophoretic drift to oppose the random diffusive motion. As a result, a nano-object is confined in a micrometer-sized trap. Numerical modeling gives a quantitative prediction of the effect. Traps can be dynamically created and relocated, w ...[more]
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