Fig.7 (a)Schematicillustrationforactivatingintramolecular motionof17 for boosted photothermal effect. (b) The plot of I/I 0 versus waterfraction in H 2 O/THF mixtures. Inset: the photothermal property of 17NPs. (c) Photothermal conversion behavior of 17 NPs at differentconcentrations (5–100 mM) under 808 nm laser irradiation. Dataadapted with permission. 82 Copyright 2019, American ChemicalSociety.