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Particle-Collector Interactions In Nanoscale Heterogeneous Systems, Marina Bendersky

Open Access Dissertations

Particle-surface interactions govern a myriad of interface phenomena, that span from technological applications to naturally occurring biological processes.

In the present work, particle-collector DLVO interactions are computed with the grid-surface integration (GSI) technique, previously applied to the computation of particle colloidal interactions with anionic surfaces patterned with O(10 nm) cationic patches. The applicability of the GSI technique is extended to account for interactions with collectors covered with topographical and chemical nanoscale heterogeneity. Surface roughness is shown to have a significant role in the decrease of the energy barriers, in accordance with experimental deposition rates that are higher than those predicted …