Page 456 - IJB-9-2

International Journal of Bioprinting Fabrication of 3D functional hydrogel for wound dressings

Figure 8. The morphological observation of L929 fibroblasts on the hydrogels by SEM and cytotoxicity test of the hydrogels. (a) The SEM images of fi-
broblasts cultured on the hydrogels for 1, 4, and 7 days (500× magnification, scale bar: 20 μm) and the enlarged images of fibroblasts for 7 days (1000×
magnification, scale bar: 20 μm). (b) Cell survival ratio on the hydrogels tested by CCK-8. Data are expressed as mean ± SD. NS: p > 0.05; * p < 0.05,
** p < 0.01, *** p < 0.001.

superior biocompatibility based on live and dead staining Funding
test, SEM images and CCK-8 assay. The strategy of combining This work was supported by the National Natural Science
the advantages of 3D printing and several biocompatible Foundation of China (31670978/32000977), the Fok
materials in this study provided an inspiration for the design Ying Tung Education Foundation (132027), the State
of multifunctional dressing for wound healing.
Key Laboratory of Fine Chemicals (KF1111), and the
Acknowledgments Fundamental Research Funds for the Central Universities
(DUT20ZD206/ DUT21YG113/DUT22YG213) and Natural
None. Science Foundation of Shandong Province (ZR2020QH188).

Volume 9 Issue 2 (2023) 448 https://doi.org/10.18063/ijb.689