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. Author manuscript; available in PMC: 2014 Jan 7.
Published in final edited form as: Phys Med Biol. 2010 Sep 21;55(19):10.1088/0031-9155/55/19/023. doi: 10.1088/0031-9155/55/19/023

Figure 1.

Figure 1

Figure 1

(a) Transmission electron microscopy of Ocean nanoparticles with nominal diameters of 20, 25, 30, and 35 nm. The SHP-20 particles show a generally uniform intensity in TEM. In the images of the larger particles, an increasing number of particles exhibit intensity variations (light and dark bands), which we attribute to polycrystallinity. (b) Particle size distributions determined by user-guided image analysis of 2500 particles from each sample.