Fig. 5From: Targeted delivery of organic small-molecule photothermal materials with engineered extracellular vesicles for imaging-guided tumor photothermal therapy(a) PA spectrum of CR@E8-EVs (50 µg/mL based on CR) in water. (b) In vivo PA imaging and (c) PA signal intensity of MKN45 tumor at 4, 8, 12, 24 h post-tail vein injection of CR (50 µg/mL) and CR@E8-EVs (50 µg/mL based on CR)Back to article page