Biodegradable Oxamide-Phenylene-Based Mesoporous Organosilica Nanoparticles with Unprecedented Drug Payloads for Delivery in Cells

  • Jonas G. Croissant
  • , Yevhen Fatieiev
  • , Khachatur Julfakyan
  • , Jie Lu
  • , Abdul Hamid Emwas
  • , Dalaver H. Anjum
  • , Haneen Omar
  • , Fuyuhiko Tamanoi
  • , Jeffrey I. Zink
  • , Niveen M. Khashab

Research output: Contribution to journalArticlepeer-review

89 Scopus citations

Abstract

We describe biodegradable mesoporous hybrid nanoparticles (NPs) in the presence of proteins and their applications for drug delivery. We synthesized oxamide phenylene-based mesoporous organosilica nanoparticles (MON) in the absence of a silica source which had remarkably high organic content and high surface areas. Oxamide functions provided biodegradability in the presence of trypsin model proteins. MON displayed exceptionally high payloads of hydrophilic and hydrophobic drugs (up to 84 wt %), and a unique zero premature leakage without the pore capping, unlike mesoporous silica. MON were biocompatible and internalized into cancer cells for drug delivery.

Original languageBritish English
Pages (from-to)14806-14811
Number of pages6
JournalChemistry - A European Journal
Volume22
Issue number42
DOIs
StatePublished - 10 Oct 2016

Keywords

  • biodegradable
  • bridged silsesquioxanes
  • drug delivery
  • enzymes
  • nanoparticles

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