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Synthesis, characterization and cytotoxicity of phosphoryl choline-grafted water-soluble carbon nanotubes

  • Tao Zhang*
  • , Min Xu
  • , Ling He
  • , Kai Xi
  • , Min Gu
  • , Zhengsheng Jiang
  • *Corresponding author for this work
  • Nanjing University
  • China Pharmaceutical University

Research output: Contribution to journalArticlepeer-review

Abstract

Carbon nanotubes (CNTs) were rendered water-soluble by grafting on phosphoryl choline (PC). The modified CNTs were characterized utilizing Fourier transform infrared spectra, X-ray photoelectron spectra, thermogravimetric analysis, nuclear magnetic resonance, transmission electron microscopy, ultraviolet/visible absorbance spectra and dynamic laser light-scattering. The results show that the target products are easily dispersed in water and remain dispersed for at least three months. This study showed that both CNTs and CNT-PC induce no cytotoxicity on clonal pheochromocytoma cells (PC12) and human colon carcinoma cell lines (Caco-2). The grafted PC group confers water solubility and keeps the cell-compatibility of CNTs.

Original languageEnglish
Pages (from-to)1782-1791
Number of pages10
JournalCarbon
Volume46
Issue number13
DOIs
StatePublished - Nov 2008

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