A dual-mode viscosity-activatable probe for the immediate evaluation of photodynamic/photothermal therapy efficacy. - Fu, Ao-Xiang; Li, Li; Liao, Qin-Ting; Peng, Chu-Yu-Hui; Yang, Ning; Mao, Guo-Jiang; Ouyang, Juan; Hu, Liufang; Xu, Fen; Li, Chun-Yan (Chemical Communications, 2026)