Fig. 7

Confocal fluorescence images of HepG2 cells suffered with different treatments and stained with calcein AM/EthD-1 homodimer. The cells in PC₁₀A hydrogel, PC₁₀A/HAuNS hydrogel, and PC₁₀A/DOX/HAuNS hydrogel were exposed under an 808 nm laser with a power density of 2.0 W cm⁻² for 9 min (PC₁₀A: 3% w/w; DOX: 0.8 mg mL⁻¹, HAuNS: 20 μg mL⁻¹)