Preparation of Monodispersed Nanoporous Eu(III)/Titania Loaded with Ibuprofen: Optimum Loading, Luminescence, and Sustained Release

Inorg Chem. 2021 Jun 21;60(12):8765-8776. doi: 10.1021/acs.inorgchem.1c00718. Epub 2021 Jun 3.

Abstract

Functional nanomaterials are one of the potential carriers for drug delivery, whereas there are many prerequisites for this purpose. The carrier should be monodispersed, be fluorescent, and have a proper nanostructure to keep/release drug molecules to achieve controlled release, although preparing a nanomaterial which fulfills all the demands is still very challenging. In this paper, we show the preparation of monodispersed nanoporous amorphous titania submicron particles with fluorescent property. They adsorb a model drug molecule-ibuprofen-with their surface coverage up to 100%. Such a perfect loading does not decrease the fluorescent intensity because of any quenching effects but even maximize it. We also demonstrate the release behavior of IBU into simulated body fluid. Interestingly, the present carrier releases most of IBU in 6 h, whereas that modified with the polyethylene glycol moiety takes 48 h to finish releasing IBU, indicating its potential for controlled release applications.

MeSH terms

  • Adsorption
  • Delayed-Action Preparations
  • Drug Carriers / chemistry
  • Drug Liberation
  • Europium / chemistry*
  • Ibuprofen / chemistry*
  • Luminescence*
  • Molecular Structure
  • Organoplatinum Compounds / chemical synthesis*
  • Organoplatinum Compounds / chemistry
  • Particle Size
  • Porosity
  • Surface Properties
  • Titanium / chemistry*

Substances

  • Delayed-Action Preparations
  • Drug Carriers
  • Organoplatinum Compounds
  • titanium dioxide
  • Europium
  • Titanium
  • Ibuprofen