Facile and Stable Dispersion of Carbon Nanotubes into a Hydrogel Composed of a Low Molecular-weight Gelator Bearing a Tautomeric Dye Group

It was found that single-walled carbon nanotubes are stably dispersed into a low molecular-weight hydrogel ((beta)-Dglucopyranoside–azonaphthol conjugate). From absorption and fluorescence spectral observations and microscopic images, it was shown that this gelator tends to orientate on the surface of SWNTs and specifically emits fluorescence light.