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. 2024 Jul 1;14(10):4014–4057. doi: 10.7150/thno.97335

Figure 1.

Figure 1

Preparation and characterization of GelMA and ZIF-8@PDA nanoparticles. (A) Schematic illustration of GelMA synthesis. (B) 1H NMR and (C) FTIR of gelatin and GelMA. (D) Schematic illustration of ZIF-8@PDA synthesis and its photothermal properties. (E) Morphological and basic characteristics of the ZIF-8 nanoparticles: Photographs of the nanoparticles (a) before and (b) after dispersion in PBS; (c) SEM image. Scale bar: 300 nm; (d) TEM image. Scale bar: 300 nm; (e) Particle size distribution; (f) Zeta potential. (F) Morphological and basic characteristics of the ZIF-8@PDA nanoparticles: Photographs of the nanoparticles (a) before and (b) after dispersion in PBS; (c) SEM image. Scale bar: 300 nm; (d) TEM image. Scale bar: 300 nm; (e) Particle size distribution; (f) Zeta potential. (G) FTIR spectra, (H) XPS analysis, (I) XRD spectra, and (J) TG diagrams of pure ZIF-8 and ZIF-8@PDA nanoparticles.