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. 2021 May 28;22(11):5779. doi: 10.3390/ijms22115779

Figure 1.

Figure 1

In vitro release of vascular growth factors from NPs incorporated alone or in combination with other NPs, in an alginate hydrogel. (A) VEGF-loaded PLGA:PLGA-PEG NPS and (B) PDGF-loaded PLGA:PLGA-PEG NPs were embedded in a 1% alginate matrix and VEGF and PDGF were quantified in the release buffer (40 mM CaCl2 PBS) at 34 °C for 21 days (n = 4).