Gold Nanoparticles Promote Proliferation of Human Periodontal Ligament Stem Cells and Have Limited Effects on Cells Differentiation

Figure 2

Cell morphology. Representative images of hPDLSCs incubated with 60 nm AuNPs at 56 μM concentrations for 24 h (a, b) and without AuNPs (c, d). AuNPs were seen as dense and dark black clusters. Cells are spindle or triangular in shape and typically well-spread.

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