Figure 29.

Representative potential applications of photothermal nanomaterials in sensing, photothermal electrodes, and wearable devices. (a) Sensing. The schematic illustrates the restoration of the light sensitivity of an eye using Au nanorods bound to temperature-sensitive engineered TRP channels. Reprinted with permission from ref (792). Copyright 2020 American Association for the Advancement of Science. (b) Photothermal electrodes. Left: schematic illustrating a TiN-based supercapacitor under solar illumination at an open environment and −40 °C. Right: cyclic voltammetry curves of the photothermally assisted supercapacitor at −40 °C with and without solar illumination. Reprinted with permission from ref (797). Copyright 2021 Elsevier. (c) Wearable devices. Top: schematic illustrating the photothermal effect produced from (Ag nanoparticle)@MXene hybrid structures when irradiated with light. Bottom: photograph (left) of a composite film made of (Ag nanoparticle)@MXene and polyurethane and attached on one human hand, and IR thermal images of the human hand with the attached film before (middle) and after (right) solar irradiation for 1 min. Reprinted with permission from ref (801). Copyright 2019 American Chemical Society.