Fig. 11.

Left: cartoons illustrating the size of fullerene C₆₀ and carbon nanotube in comparison to the surfactant proteins Rsn-2 (A) and latherin (B), approximately to scale. The structures for Rsn-2 (pdb: 2WGO) and latherin (pdb: 3ZPM) are taken from [4] and [7], respectively. Right: (C) UV–vis spectra of C₆₀ dispersed in aqueous solutions of Rsn-2 (upper panel) or latherin (lower panel). The inserts show superimposed spectra of samples after storage at 4 °C for approximately 1, 2 and 6 months [12].