Cerato ulmin (CU), a class II hydrophobin, has unique properties; specifically, CU forms rod-like bubbles in solution. This is contrary to �normal� spherical bubbles that minimize the surface energy.  Optical microscopy studies have shown CU is capable of encapsulating hydrophobic dyes in aqueous solution while keeping the rod-like structures. Microbubbles and nanometer scale structures are also present. While static light scattering experiments have probed the size of these structures in ethanol/water solutions, the stability has not been investigated. In this research, stability of CU in water is observed using dynamic light scattering.  Time, temperature, height in the scattering cell and concentration were altered, and the resultant correlation functions were analyzed to explore the stability and size range of structures present. Supported by the Gulf of Mexico Research Institute.

Cerato ulmin, how stable is it? Light scattering studies of cylindrical bubbles

245th National Meeting (2013)

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