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. 2018 Jul 19;5(10):1800518. doi: 10.1002/advs.201800518

Figure 3.

Figure 3

Surface chemistry of MXenes for biomedicine. Schematic illustrations of polymer‐based surface chemistry of MXenes. a) PVP modification of M2X (e.g., Nb2C nanosheets). b) PEGylation of M3X2 (e.g., Ti3C2 nanosheets). c) SP modification M4X3‐based MXenes. Schematic representations of inorganic nanoparticle‐based surface chemistry of MXenes. d) Superparamagnetic iron oxide (Fe3O4) nanoparticles grew onto the surface of Ta4C3 MXene by an in situ redox reaction. Reproduced with permission.78 Copyright 2018, Ivyspring International Publisher. e) In situ growth of small MnOx nanosheets on the surface of Ti3C2 according to a facile redox reaction. Reproduced with permission.51 Copyright 2017, American Chemical Society. f) Integration of GdW10‐based polyoxometalates (POMs) onto the surface of Ti3C2 MXene though an amide bond. Reproduced with permission.79 Copyright 2018, Springer. g) Surface nanopore engineering of silica (SiO2) on the 2D Ti3C2 MXene based on a process of sol‐gel chemistry. Reproduced with permission.80 Copyright 2018, Wiley‐VCH. The STEM images and the corresponding element mappings of h) Fe3O4@Ta4C3, i) MnOx@Ti3C2, j) POMs@Ti3C2, and k) SiO2@Ti3C2 composite MXenes.