Synthesis and Cytotoxicity of POSS Modified Single Walled Carbon Nanotubes

Abstract EN

Single walled carbon nanotubes (SWNTs) decorated with polyhedral oligomeric silsesquioxane (POSS) were synthesized via the amide linkages between the acid treated SWNTs and amine-functionalized POSS.

The successful modification of SWNTs with POSS was confirmed by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and UV-Vis spectra.

The resulting SWNTs-POSS can be dispersed in both water and organic solutions.

The biocompatibility and cytotoxicity of the SWNTs and SWNTs-POSS were evaluated by CCK-8 viability assays, which indicated that SWNTs-POSS exhibit very extremely low toxicity.

The low toxicity of the POSS modified SWNTs leads to more opportunities for using carbon nanotubes in biomedical fields.