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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: Adv Drug Deliv Rev. 2020 Jun 29;156:188–213. doi: 10.1016/j.addr.2020.06.020

Fig. 19.

Fig. 19.

Schematic representation: (a) upconverted luminescence triggers degradation and release from light-sensitive nanoparticles; (b) spectral overlap between the UV emission profile of NaYF 4 :Yb.Tm core-shell UCNPs (black trace) and the absorption spectrum (shaded blue) of ONB triggering groups; (c) photochemical mechanism of light-triggered degradation. (Adapted from ref. 367).