Fig. 5
a NIR-II PAI of BTN@LND NPs in vivo under 1064-nm pulsed laser excitation. b PA intensity in the tumor site (n = 3). c Infrared thermograms of the tumor site at different time points under 1064-nm laser irradiation (1.0 W cm−2). d Heating curves in the tumor site (n = 3). e Tumor growth curves after receiving different treatments (n = 5). f Final ex vivo tumor images after receiving different treatments. g Histological examination of 4T1 tumors in different groups, scale bar = 100 μm. h Expression levels of GSDMD in different treatments, scale bar = 100 μm. *P < 0.05