Fig. 1. SEM images of PGS/TCP, PGS-Cu/TCP, and PGS-Cu/PTCP cross sections as well as EDS analysis of PGS-Cu/PTCP

Fig. 2. Cell viability of the hydrogels

Fig. 3. Temperature change curves of PGS-Cu/PTCP hydrogel under irradiation with different infrared power densities

Fig. 4. Photothermal performance measurement. (a) Temperature change of each group of samples at constant laser power density (1.05 W/cm²); (b) five laser on/off cycles temperature curve of the PGS-Cu/PTCP hydrogel; (c) real-time photothermal images of each group of samples

Fig. 5. Antibacterial performance test. (a) Images of bacterial colonies of Escherichia coli and Staphylococcus aureus; (b) viability analysis of Escherichia coli (incubated at constant temperature of 37 ℃ for 6 h); (c) viability analysis of Staphylococcus aureus