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TEM and AFM size distribution statistics of red emitting TOPO and peptide-coated CdSe/ZnS nanocrystals. Size distribution histograms of TOPO-coated nanocrystals (bottom a and c) and the same nanocrystals coated with peptide 4 (bottom b and d) were constructed from low and high resolution (insert) TEM images (top a and b) and AFM images (top c and d). The diameter of the nanocrystals was measured to be 73.8 Å (±27%) (a), 73.7 Å (±24%) (b), 70.7 Å (±27%) (c), and 55.2 Å (±38%) (d).
