The results of this analysis show that FAs readily aggregate rapidly into long-lived clusters in under 100 ns, with over 60% of the total lipids clustered in the first 30 ns. Figure shows the fraction of total lipids clustered as well as the total number of clusters calculated over the duration of the simulations. Snapshots from the MD simulations for A1 are provided with each cluster colored individually. Upon visual inspection, the first timepoint (30 ns) already shows lipids organizing into their final clusters, with latter timesteps illustrating increased molecular alignment, greater surface coverage, and fewer unclustered patches. By the final timesteps, the surface is nearly saturated (SI Movie M2), and the lipids are aligned into rafts, or patches of similarly-aligned FAs at the particle surface. Two major rafts are visible in the snapshots in Figure , colored in red and gray, with unclustered individual FAs in black between the clusters. The individual rafts are distinct from one another by tilt angle and form a patchwork pattern over the surface. (Note that we use the term "raft" here to describe a surfactant monolayer patch in which the lipids aggregate at the air/saltwater interface and adopt a similar tilt angle and orientation. This term is not to be confused with the phenomenon occurring in cellular membranes)