Fig. 2From: NIR-II-activated biocompatible hollow nanocarbons for cancer photothermal therapyOptical and photothermal response of HPP. a Absorption spectra of HPP with different concentrations. b Photothermal response of HPP with different concentrations under 1064 nm laser exposure. c Photothermal response of HPP of 10 µg/mL under different laser power densities. d Comparison of HCE of HPP with previous reported NIR-II PTAsBack to article page