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. 2019 Oct 2;5(10):eaaw6264. doi: 10.1126/sciadv.aaw6264

Fig. 3. Photothermal property and disassembly behavior study of the self-assembled nanostructures.

Fig. 3

(A) Visible absorption spectra of 2-nm core-sized NPs and 200-nm self-assembled nanostructures. a.u., absorbance unit. (B) Temperature response of self-assembled nanostructures, upon NIR irradiation, dispersed in water and cell culture medium. Mean values ± SD, n = 3. (C) Temperature rise of self-assembled nanostructures, upon NIR irradiation, dispersed in water and cell culture medium. (D) Change of maximum absorbance (767 nm) of 2-nm core-sized NPs and 200-nm self-assembled nanostructures upon NIR irradiation. (E and F) TEM observation of disassembly behavior of 200-nm self-assembled nanostructures before (top) and after (bottom) NIR irradiation (808 nm, 10 min). (G) Hydrodynamic diameter of (a) monodispersed 2-nm Au-POY2T NPs and size change of the 200-nm nanosunflowers before (b) and after (c and d) NIR irradiation for different time periods (3 and 10 min).