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. 2023 Jul 17;29:214–229. doi: 10.1016/j.bioactmat.2023.06.007

Fig. 7.

Fig. 7

Photothermal and antibacterial properties of the APTF hydrogels. Temperature enhancement over time for the (a) dry APTF hydrogels and (b) wet APTF hydrogels under irradiation with a NIR laser (808 nm) under different power densities. (c) Photothermal stability of the engineered APTF hydrogel undergoing 10 consecutive heating cycles. (d) Infrared thermal images of the AP and APTF hydrogels under 808 nm irradiation for 6 min. (e) Quantitative antibacterial efficiency against p. aeruginosa under different treatment conditions. (f) Quantitative antibacterial efficiency of APTF hydrogel against p. aeruginosa and MRSA under 808 nm irradiation. (g) Representative images from the p. aeruginosa colonies on the agar plates after treatment with DPBS, DPBS + light, AP hydrogel + light, APTF hydrogel, APTF hydrogel + light. Images were taken from a Zeiss Axio Observer Z1 inverted microscope. Scar bar = 500 μm. (h) Cell viability in the presence of APTF hydrogel after 5 min irradiation.