Synthesis of Polyhedral Metal-Organic Framework@Mesoporous Silica Hybrid Nanocomposites with Branched Shapes

ACS Appl Bio Mater. 2021 Feb 15;4(2):1221-1228. doi: 10.1021/acsabm.0c01518. Epub 2021 Feb 2.

Abstract

The structural modulation of multicompartment porous nanomaterials is one of the major challenges of nanoscience. Herein, by utilizing the polyhedral effects/characteristics of metal-organic frameworks (MOFs), we present a versatile approach to construct MOF-organosilica hybrid branched nanocomposites with MOF cores, SiO2 shells, and periodic mesoporous organosilica (PMO) branches. The morphology, structure, and functions of the obtained hybrid nanocomposites can be facilely modulated by varying particle size, shape, or crystalline structures of the MOF cores. Specifically, these branched multicompartment porous nanoparticles exhibit evasion behaviors in epithelial cells compared with macrophage cells, which may endow them great potential as a vehicle for immunotherapy.

Keywords: bioapplication; hybrid nanocomposite; metal−organic framework; multicompartment porous nanomaterials; organosilica.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Line, Tumor
  • Cell Survival / drug effects
  • Epithelial Cells / drug effects
  • Humans
  • Macrophages / drug effects
  • Metal-Organic Frameworks / chemical synthesis*
  • Metal-Organic Frameworks / toxicity
  • Mice
  • Nanocomposites / chemistry*
  • Nanocomposites / toxicity
  • Particle Size
  • Porosity
  • RAW 264.7 Cells
  • Silicon Dioxide / chemistry
  • Silicon Dioxide / toxicity

Substances

  • Metal-Organic Frameworks
  • Silicon Dioxide