Assessing the role of polyethylene glycol-bl-propylene sulfide (PEG-PPS) block copolymers in the preparation of carbon nanotube biocompatible dispersions

Erika Maria Di Meo, Antonello Di Crescenzo, Diana Velluto, Conlin P. O'Neil, Davide Demurtas, Jeffrey A. Hubbell, Antonella Fontana

Research output: Contribution to journalArticle

27 Scopus citations

Abstract

Amphiphilic block copolymers based on hydrophobic polysulfides (poly(propylene sulfide), PPS) and hydrophilic polyethers (polyethylene glycol), PEG) have been used to solubilize and disperse single-walled carbon nanotubes (SWNTs). The obtained highly concentrated aqueous dispersions are stable for months. The factors that affect the dispersant activity of the studied block copolymers have been characterized, and comparisons with the much more investigated oxygen analogues (Pluronics) are reported. The biocompatibility and the stability after dilution of the most representative suspensions have been investigated as prospective drug carriers.

Original languageEnglish (US)
Pages (from-to)3429-3437
Number of pages9
JournalMacromolecules
Volume43
Issue number7
DOIs
StatePublished - Apr 13 2010

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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    Di Meo, E. M., Di Crescenzo, A., Velluto, D., O'Neil, C. P., Demurtas, D., Hubbell, J. A., & Fontana, A. (2010). Assessing the role of polyethylene glycol-bl-propylene sulfide (PEG-PPS) block copolymers in the preparation of carbon nanotube biocompatible dispersions. Macromolecules, 43(7), 3429-3437. https://doi.org/10.1021/ma902443j