Supramolecular chemistry on multi-walled carbon nanotubes decorated with Fe3O4 nanoparticles for controlled targeted drug delivery.

Yu Jen Lu, Shin Ming Li, Kuo Chen Wei, Shih Yi Yang, Yuan Li Huang, Hong Chieh Tsai, Chiung Yin Huang, Pin Yuan Chen, Shu Mei Chen, Chen Chi Ma, Jyh Ping Chen*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this work, we combine the advantages of Multi-walled carbon nanotubes (MWCNTs) and iron oxide magnetic nanoparticles (MN) and develop a novel multifunctional magnetic MWCNTs. Poly(acrylic acid) was first functionalized MWCNT(PAA-MWCNTs) through free radical polymerization and decorated with MN(MN-PAA-MWCNTs) containing anti-cancer drug doxorubicin (DOX), folic acid (FA) (DOX-FA-MN-PAA-MWCNTs), and fluorescent dye (FITC). The proposed methodology provides dual targeted delivery of the anti-cancer drug to cancer cells under the guidance of a magnetic field and through ligand-receptor interactions while allowing real-time monitoring of drug treatment through dual-modal fluorescence and magnetic resonance imaging. The chemico-physical properties of MWCNTs were fully characterized by XPS, TEM and SQUID, in addition to its drug loading efficiency and drug releasing characteristics. Doxorubicin could be loaded to MWCNTs with high efficiency via stacking and enhance its cytotoxic activity toward human U87 glioma cells compared to free DOX. We confirmed that DOX-FA-MN-PAA-MWCNTs is efficiently taken up by cancer cells with subsequent intracellular release of DOX, which then translocates to the nucleus while the nanocarriers remain in the cytoplasm. These properties make DOX-FA-MN- PAA-MWCNTs a potential candidate for controlled targeted delivery of DOX for cancer treatment.

Original languageEnglish
Title of host publication7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
PublisherACCM-7 Organizing Committee
Pages804-807
Number of pages4
ISBN (Print)9781632660756
StatePublished - 2010
Event7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010 - Taipei, Taiwan
Duration: 15 11 201018 11 2010

Publication series

Name7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
Volume2

Conference

Conference7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
Country/TerritoryTaiwan
CityTaipei
Period15/11/1018/11/10

Keywords

  • Doxorubicin
  • Drug delivery
  • Iron oxide magnetic nanoparticles
  • Multi-walled carbon nanotubes

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