Supporting information
Fig.S1 (A) Tensile stress-strain curves, (B) plastic strain and (C)
ultimate tensile strength of PTMC/TPU scaffolds tested at 37 ℃.
Fig.S2 (A) Water contact angle and (B) relative amount of BSA adsorption
by PTMC/TPU scaffolds of different PTMC:TPU ratios.
Fig.S3 (A) Schematic illustration of GelMA synthesis. (B)1H-NMR and (C) FTIR spectra of Gel and GelMA.
Fig.S4 SEM images and diameter distribution of electrospun PLGA/GelMA
fibers at different feeding rates (Applied voltage: 10 kV).
Fig.S5 SEM images and diameter distribution of electrospun PLGA/GelMA
fibers at different applied voltages (Feeding rate: 2.0 ml/h).
Fig.S6 Fiber diameter analysis for electrospun PLGA/GelMA fibers at
different (A) feeding rates and (B) applied voltages.
Fig.S7 (A) Water contact angle and (B) relative amount of BSA adsorption
by S and bilayer S+F-PDA scaffolds.
Fig.S8 (A) UV-vis spectra and (B) average particle size of PDA and
PDA@E2 particles.
Fig.S9 Average fiber diameter of electrospun PLGA/GelMA fibers having
different concentrations of PDA particles.
Fig.S10 DSC curve of PLGA.
Fig.S11 An SEM image providing the cross-sectional view of a bilayer
scaffold at the initial electrospinning stage.
Fig.S12 Analysis of E2 release using the Higuchi model for S+F-PDA@E2
scaffolds in pH 4.5, 7.4, and 9.0 environments.
Fig.S13 SEM images showing BMSC morphology on S, S+F and S+F-PDA@E2
scaffolds after 1d culture.
Fig.S14 Printability of GelMA-Gel inks and GelMA-Gel-BMSC bioinks.
Table S1 Nominal and real percentages of PTMC in PTMC/TPU scaffolds.
Table S2 Tensile properties of S+F-PDA bilayer scaffolds.
Video S1 The shape morphing process of PTMC/TPU scaffold.
Video S2 The shape morphing process of S+F-PDA bilayer scaffold.
Video S3 The shape morphing process
of trilayer scaffold.