Fig. 4From: Restorative biodegradable two-layered hybrid microneedles for melanoma photothermal/chemo co-therapy and wound healingAÂ Near-infrared thermal imaging of the microneedles under irradiation by 808Â nm laser within 5Â min (0.75Â W/cm2). BÂ Heating curves of the microneedles after irradiation by NIR lightBack to article page