(331f) Understanding Nanoparticle Diffusion and Exploring Interfacial Nanorheology Using Molecular Dynamics Simulations
AIChE Annual Meeting
2009
2009 Annual Meeting
Engineering Sciences and Fundamentals
Transport at Interfaces
Tuesday, November 10, 2009 - 5:00pm to 5:20pm
We have studied the dynamics of nanoparticles at polydimethylsiloxane (PDMS) oil-water interfaces using molecular dynamics (MD) simulations. The diffusion of nanoparticles in pure water and low viscosity PDMS oil are found to be reasonably consistent with the prediction by the Stokes-Einstein equation. In addition, we have calculated the shear moduli and viscosities of bulk oil and water as well as oil-water interfaces from single-nanoparticle tracking and demonstrated the potential of probing nanorheology from a MD simulation approach.
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