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. Author manuscript; available in PMC: 2023 Feb 1.
Published in final edited form as: Biomaterials. 2021 Dec 28;281:121333. doi: 10.1016/j.biomaterials.2021.121333

Fig 2.

Fig 2.

(Ai.) An illustration scheme of chitosan nanoparticles (CS-NPs) combining chitosan (CS) with tripolyphosphate (TPP) via ionic gelation method. (Aii.) Formation of pBMP-2 encapsulated CS-NPs by ionic gelation. (B) Particle size distribution profiles and peak zeta potential of CS-NPs and CS-NPs(pBMP-2) (PDI: poly dispersive index) (n=3). (C) SEM images showing the morphology of formed CS-NPs and CS-NPs(pBMP-2). (D) ATR-FTIR spectra of CS-NPs and CS-NPs(pBMP-2).