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Flow-dependent double-nanohole optical trapping of 20?nm polystyrene nanospheres.

ABSTRACT: We study the influence of fluid flow on the ability to trap optically a 20?nm polystyrene particle from a stationary microfluidic environment and then hold it against flow. Increased laser power is required to hold nanoparticles as the flow rate is increased, with an empirical linear dependence of 1??l/(min×mW). This is promising for the delivery of additional nanoparticles to interact with a trapped nanoparticle; for example, to study protein-protein interactions, and for the ability to move the trapped particle in solution from one location to another.

SUBMITTER: Zehtabi-Oskuie A

PROVIDER: S-EPMC3520027 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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Flow-dependent double-nanohole optical trapping of 20 nm polystyrene nanospheres.

Zehtabi-Oskuie Ana A Bergeron Jarrah Gerald JG Gordon Reuven R

Scientific reports 20121212

We study the influence of fluid flow on the ability to trap optically a 20 nm polystyrene particle from a stationary microfluidic environment and then hold it against flow. Increased laser power is required to hold nanoparticles as the flow rate is increased, with an empirical linear dependence of 1 μl/(min×mW). This is promising for the delivery of additional nanoparticles to interact with a trapped nanoparticle; for example, to study protein-protein interactions, and for the ability to move th ...[more]

PMID: 23236587

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