Page 241 - IJB-10-1

International Journal of Bioprinting NIR-secretome release for nerve regeneration

Figure 1. Bioprinting and characterization of alginate-graphene oxide microbeads. (A) Schematic illustration of the experimental setup, from bioprinting
of microbeads to NIR. (B) Bright-field image of the microbeads. (C) SEM images at different magnifications of microbeads, highlighting alginate polymers
(green) and GO sheets (red). (D) Biocompatibility of microbeads having different concentrations of GO. (E) FTIR analysis of microbeads, showing typical
peaks of alginate and GO. (F) FTIR analysis of microbeads loaded with the secretome of mesenchymal stem cells. (G) Thermal responsiveness of the
microbeads with different concentrations of GO. (H) Cumulative release over time of FITC–Dextran from microbeads after infrared radiation. ***p < 0.01,
one-way ANOVA and Tukey’s post-hoc test.

Volume 10 Issue 1 (2024) 233 https://doi.org/10.36922/ijb.1045