Dynamic surface properties of C-60-arginine and C-60-L-lysine aqueous solutions

作者：Noskov Boris A^*; Timoshen Kirill A; Akentiev Alexander V; Charykov Nikolai A; Loglio Giuseppe; Miller Reinhard; Semenov Konstantin N

来源：Colloids and Surfaces A: Physicochemical and Engineering Aspects , 2017, 529: 1-6.

DOI：10.1016/j.colsurfa.2017.05.055

• C-60 fullerene
• Amino acid derivatives of C-60 fullerene
• Dilational surface rheological properties
• Surface structure
• Capillary waves
• Brewster angle microscopy

The surface properties of the solutions of two derivatives of C-60 fullerene with lysine and arginine were investigated by measurements of surface tension, dilational surface rheological properties, characteristics of capillary waves, and by Brewster angle microscopy. It is shown that the adsorption of the derivatives is irreversible and they can form a dynamic network at the interface with almost zero surface pressure and high dynamic surface elasticity, up to similar to 100 mN/m. The adsorption layers of C-60-Lys and C-60-Arg are characterized by strongly different surface rheological properties and distinct morphologies after an external mechanical perturbation due to different numbers of amino acid residues per C-60 fullerene.

• 出版日期2017-9-20