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. 2017 Dec 13;5:118. doi: 10.3389/fchem.2017.00118

Figure 2.

Figure 2

(A–C) TEM image of UCNP@SiO2@mSiO2&PMO Janus nanoparticles and the fabrication scheme (A inset). Reprinted with permission from Li et al. (2014b). Copyright (2014) American Chemical Society. (D) Scheme, (E) TEM, and (F) SEM images of asymmetry single-hole nanorattles. Reprinted with permission from Li et al. (2015b). Copyright (2015) American Chemical Society. (G) TEM image of match-like asymmetric Au-NR@SiO2&EPMO and the photothermal induced drug release (inset). Reprinted with permission from Li et al. (2017). Copyright 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.