A Framework to Account for Sedimentation and Diffusion in Particle-Cell Interactions
AuthorCui, J; Faria, M; Bjornmalm, M; Ju, Y; Suma, T; Gunawan, ST; Richardson, JJ; Heidar, H; Bals, S; Crampin, EJ; ...
PublisherAMER CHEMICAL SOC
University of Melbourne Author/sCaruso, Francesco; Cui, Jiwei; Crampin, Edmund; Richardson, Joseph; Bjornmalm, Axel Mattias Hekansson; Gunawan, Sylvia; Ju, Yi; Suma, Tomoya; Faria, Matthew William; Faria, Matthew
AffiliationChemical and Biomolecular Engineering
Mathematics and Statistics
Document TypeJournal Article
CitationsCui, J; Faria, M; Bjornmalm, M; Ju, Y; Suma, T; Gunawan, ST; Richardson, JJ; Heidar, H; Bals, S; Crampin, EJ; Caruso, F, A Framework to Account for Sedimentation and Diffusion in Particle-Cell Interactions, LANGMUIR, 2016, 32 (47), pp. 12394 - 12402
Access StatusOpen Access
In vitro experiments provide a solid basis for understanding the interactions between particles and biological systems. An important confounding variable for these studies is the difference between the amount of particles administered and that which reaches the surface of cells. Here, we engineer a hydrogel-based nanoparticle system and combine in situ characterization techniques, 3D-printed cell cultures, and computational modeling to evaluate and study particle-cell interactions of advanced particle systems. The framework presented demonstrates how sedimentation and diffusion can explain differences in particle-cell association, and provides a means to account for these effects. Finally, using in silico modeling, we predict the proportion of particles that reaches the cell surface using common experimental conditions for a wide range of inorganic and organic micro- and nanoparticles. This work can assist in the understanding and control of sedimentation and diffusion when investigating cellular interactions of engineered particles.
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