This article says that some researchers have indicated that the milk protein alpha-lactalbumin may have unique properties that make it suitable for use in nanoencapsulation. The article says that the protein, which is currently used in baby formulas and nutritional supplements, is able to self-assemble into linear nanotubes under appropriate conditions. The article indicates that these are the only known food protein nanotubes and that they display good stability and can withstand pasteurization and freeze-drying. The article says that these nanotubes could be used for encapsulating molecules such as vitamins or enzymes. The article says that the protein could also have applications as a thickening agent.