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. 2022 Mar 9;9:rbac016. doi: 10.1093/rb/rbac016

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© The Author(s) 2022. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 1. — Characteristics of the injectable FGF1-SS hydrogel. (A) Digital image of the fabricated injectable FGF1-SS hydrogel, scale bar: 1 cm. (B) SEM images of the FGF1-SS hydrogel under at 500-fold magnification (top inset) and 2000-fold magnification (bottom inset), respectively. (C) FTIR analysis of the WT+FGF1. (D) Viscosity–shear rate relation of the WT+FGF1. (E) Release behavior of the FGF1-SS hydrogel. (F) The degradation dynamics of the FGF1-SS hydrogel in PBS (pH 7.4) with or without lysozyme. (G) Changes of FGF1 expression in rats injected with FGF1-SS hydrogel in situ. (H) Expression of FGF1 factor in rat uterus to detect the retention behavior of FGF1-SS hydrogels in vivo. *P < 0.05; **P<0.01. n = 5