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. 2015 Nov 16;5:16914. doi: 10.1038/srep16914

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(a) Nanoparticle aggregates found in the external solution, for which RICS measurement was repeated overall 30 times. Scale bar: 1.5 μm. (b) A cell region selected for RICS experiments. Scale bar: 10 μm. (c) Size distribution and gaussian fitting for nanoparticles found in the external solution. The mean radius is 100 ± 30 nm. (d) TM9-ATTO 425 diffusion coefficients (μm²/s) obtained from RICS for nanoparticles and for internalized peptide.