Formation of organosilica nanoparticles with dual functional groups and simultaneous payload entrapment

Ya Ling Su, Chien Yu Lin, Shih Jiuan Chiu, Teh Min Hu

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A mixed organosilane system for simultaneous formation of organosilica nanoparticles has been systematically studied for loading of various compounds with a wide range of log P values. The molecule-entrapping system was understood by investigating the effects of adjusting various experimental parameters on particle formation and molecule entrapment. Particularly, rhodamine 6 G (R6G) loaded colloidal particles were prepared and characterised in detail. The results show that whereas most molecules had entrapment efficiency (EE%) in the range of 20–80%, R6G exhibited near 100% efficiency. Moreover, the colloidal system can be tuned to incorporate R6G with the extent of entrapment spanning at least 2 orders of magnitude (i.e. from 0.04 to 4 mg) and a maximum EE% of 98%. In conclusion, the study demonstrates the promise of the proposed mixed organosilane system in forming colloidal particles containing multiple functional groups with selective loading of highly hydrophobic molecules.

Original languageEnglish
Pages (from-to)381-391
Number of pages11
JournalJournal of Microencapsulation
Volume35
Issue number4
DOIs
Publication statusPublished - May 19 2018

Keywords

  • nanoparticle
  • nanoprecipitation
  • organosilane
  • Silica
  • silsesquioxane

ASJC Scopus subject areas

  • Bioengineering
  • Pharmaceutical Science
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Colloid and Surface Chemistry

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