Nanoparticle dynamics in a nanodroplet.

Lu, Jingyu; Aabdin, Zainul; Loh, N Duane; Bhattacharya, Dipanjan; Mirsaidov, Utkur · Nano Lett · 2014

basic_science · Level V

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Abstract

We describe the dynamics of 3-10 nm gold nanoparticles encapsulated by ∼30 nm liquid nanodroplets on a flat solid substrate and find that the diffusive motion of these nanoparticles is damped due to strong interactions with the substrate. Such damped dynamics enabled us to obtain time-resolved observations of encapsulated nanoparticles coalescing into larger particles. Techniques described here serve as a platform to study chemical and physical dynamics under highly confined conditions.