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. Author manuscript; available in PMC: 2013 Feb 12.
Published in final edited form as: Langmuir. 2011 Apr 13;27(10):6358–6367. doi: 10.1021/la200546g

Figure 6.

Figure 6

Evolution of dimensionless and normalized surface area (a,b) and radius of gyration Rg (c,d) of DLCA aggregates (initial Df = 1.79) consisting of 16–512 monodisperse primary particles. The results are averaged over 50 different aggregates of each size and the highlighted areas in (a) and (c) represent the range of the standard deviation. The more primary particles an aggregate has, the longer it takes until the particles fully coalesce. If the time is scaled with τA = ηr0(N/2)(0.5-Df/6)/γ, the normalized surface area evolution collapses around a single line up to A′ = 0.2 (b) and is described well by the KF model (eq 19). (d) The evolution of the normalized radius of gyration scales best with N(0.7–0.18Df). The surface area evolution scales differently than that of the radius of gyration (or moment of inertia).