초록 |
Carbon nanotubes have been accepted as promising materials due to their outstanding electrical, mechanical and optical properties and small diameter. However, strong bundles and hydrophobicity have been one of the obstacle for their biological applications. To solve such problems, we examine the dispersing ability of mussel protein for carbon nanotube in water. Mussel protein have attention as the potential biomolecules due to their intrinsic properties such as adherence to organic and/or inorganic materials and high biocompatibility. Especially, adherence in wet condition helps carbon nanotubes dispersed in water by strongly and homogeneously coated the sidewall of nanotubes. As the results, carbon nanotubes were individually isolated in water, so that they exhibits sharp peaks in absorption spectra as well as luminescent emissions in Raman spectra and photoluminescence map. Furthermore, the degree of dispersion depends on the molecular mass and concentration of mussel proteins. |