Fabrication and characterization of an inorganic gold and silica nanoparticle mediated drug delivery system for nitric oxide.

Amitava Das, Priyabrata Mukherjee, Sumit K. Singla, Praveen Guturu, Megan C. Frost, Debabrata Mukhopadhyay, Vijay H. Shah, Chitta Ranjan Patra

Research output: Contribution to journalArticle

34 Scopus citations

Abstract

Nitric oxide (NO) plays an important role in inhibiting the development of hepatic fibrosis and its ensuing complication of portal hypertension by inhibiting human hepatic stellate cell (HSC) activation. Here we have developed a gold nanoparticle and silica nanoparticle mediated drug delivery system containing NO donors, which could be used for potential therapeutic application in chronic liver disease. The gold nanoconjugates were characterized using several physico-chemical techniques such as UV-visible spectroscopy and transmission electron microscopy. Silica nanoconjugates were synthesized and characterized as reported previously. NO released from gold and silica nanoconjugates was quantified under physiological conditions (pH = 7.4 at 37 degrees C) for a substantial period of time. HSC proliferation and the vascular tube formation ability, manifestations of their activation, were significantly attenuated by the NO released from these nanoconjugates. This study indicates that gold and silica nanoparticle mediated drug delivery systems for introducing NO could be used as a strategy for the treatment of hepatic fibrosis or chronic liver diseases, by limiting HSC activation.

Original languageEnglish (US)
Number of pages1
JournalNanotechnology
Volume21
Issue number30
DOIs
StatePublished - Jan 1 2010
Externally publishedYes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Das, A., Mukherjee, P., Singla, S. K., Guturu, P., Frost, M. C., Mukhopadhyay, D., Shah, V. H., & Patra, C. R. (2010). Fabrication and characterization of an inorganic gold and silica nanoparticle mediated drug delivery system for nitric oxide. Nanotechnology, 21(30). https://doi.org/10.1088/0957-4484/21/30/305102