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Figure 4 | Nanoscale Res Lett

Figure 4

From: Interaction of Water-Soluble CdTe Quantum Dots with Bovine Serum Albumin

Figure 4

AFM (a, b, c, e) and STEM (d, f) images of CdTe quantum dots. ac AFM images of quantum dots dispersed on mica (dispersed from aqueous solution kept for: a 40 min, b 5 h, c 24 h), d STEM image of quantum dots dispersed on TEM grid (dispersed from solution kept for 48 h), e AFM image of quantum dots with BSA dispersed on mica (dispersed from aqueous solution kept for 2 months), f STEM image of quantum dots with BSA (dispersed from aqueous solution kept for 2 months). Inserts (in d and f images) show magnified view (40 nm × 40 nm). Concentrations of solutions used for sample preparation were 6 × 10-6 mol/l.

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