Hi. If you are interested in characterizing the 2D spatial distribution of your nanoparticles, you can apply statistical tools from spatial point pattern analysis. A book on the topic I found clear and sufficiently in-depth is Wiegand, Moloney, "Handbook of Spatial Point-Pattern Analysis in Ecology". Especially, you can use the pair correlation function to test if the distribution of your NPs is random (Poisson distribution), if it is clustered or hyperdispersed, and also extract some informations like the spatial range of clustering (in case of clustering). Some mateials-science related literature: investigation of clustering in pits dislocations of GaN surfaces ( M.A.Moram,R.A.Oliver,M.J.Kappers,C.J.Humphreys,Adv.Mater.21(38–39) (2009)3941), analysis of breakdown spots patterns in Pt/HfO2/Pt structures (Miranda et al., Journal of Applied Physics 115, 174502 (2014); doi: 10.1063/1.4874740), analysis of clustering in Ni-Si microinslands after temperature induced dewetting of Ni deposited on Si (Carapezzi et al., J. Mater. Chem. C, 2016, 4, 8226) . Best Stefania Carapezzi
On Sun, Sep 11, 2016 at 3:09 PM, Daniil Bratashov <[email protected]> wrote: > We're now preparing an article about MRI contrasting by magnetite > nanoparticles and I'm puzzled, what kind of grain statistic can be used > to describe non-uniformity of lateral particle distribution. It can be > distribution of interparticle distances, some statistical parameters > from the distribution like minimal interparticle distance, average > particles cluster size, some thermodynamical parameters. For example, > with highly charged particles its distributed highly uniformly, then we > have small aggregates forming, then it's all one large aggregate. Is > there any parameters that reliably describe such processes, and which > literature can one recommend for such analysis? > > WBR, Daniil Bratashov. > > ------------------------------------------------------------ > ------------------ > _______________________________________________ > Gwyddion-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/gwyddion-users >
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