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Nano Convergence
Fig. 2 | Nano Convergence

Fig. 2

From: Regulation of intracellular transition metal ion level with a pH-sensitive inorganic nanocluster to improve therapeutic angiogenesis by enriching conditioned medium retrieved from human adipose derived stem cells

Fig. 2

Characteristics of ps-TNCs. a TEM image of ps-TNCs. b Size distribution of ps-TNCs. The average size of ps-TNCs is 3.79 ± 1.00 nm. c EDX profile of ps-TNCs. White arrows indicate iron atom peaks. d XRD patterns of ps-TNCs. Red circles indicate iron ion patterns. e UV–vis spectra of gold nanoparticles (AuNPs, black line) and ps-TNCs (red line). Peak moves to left side due to the presence of iron. f Atomic ratio (gold/iron) of ps-TNCs according to the pH difference at 12 h as quantified by EDS. (n = 3, *p < 0.05 compared to other groups)

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