Photothermal effects could be utilized for the preparation of various different near-infrared (NIR)-responsive nanoscale drug delivery systems (NDDSs).
Two-photon excitation was another promising NIR-light for the fabrication of novel NIR-responsive NDDSs.
Upconversion nanoparticles (UCNPs) could be employed as an efficient NIR-light transducer for the activation of many conventional molecules, originally in response to visible or UV light.