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. Author manuscript; available in PMC: 2021 Aug 1.
Published in final edited form as: Acta Biomater. 2020 Jun 1;112:262–273. doi: 10.1016/j.actbio.2020.05.034

Figure 1: Fabrication and multi-scale hierarchy of three types of hydrogels.

Figure 1:

(A) Fabrication setup (left) and schematic representation of bottom-up hierarchy (right) common to the three types of hydrogels; (B1, C1, and D1) SEM micrographs of single fiber of CHT-ALG, CHT-GG, and CHT-KCA, respectively. (A3, B3, and C3) TEM micrograph showing dark and light regions with periodically varying electron density at nanoscale for single fiber of CHT-ALG, CHT-GG, and CHT-KCA, respectively. (B3, C3, and D3) Photographic images of CHT-ALG, CHT-GG, and CHT-KCA hydrogels, respectively; (B4, C4, and D4) Light microscopy images of CHT-ALG, CHT-GG, and CHT-KCA hydrogels, respectively; (B5, C5, and D5) SEM micrograph showing fibrous surface of CHT-ALG, CHT-GG, and CHT-KCA hydrogels, respectively.