Self-assemblies of amphiphiles in solutions were investigated by using freeze-fracture transmission electron microscopy(FF-TEM). Especially, vesicles were characterized by FF-TEM and the transition of self-assemblies ...Self-assemblies of amphiphiles in solutions were investigated by using freeze-fracture transmission electron microscopy(FF-TEM). Especially, vesicles were characterized by FF-TEM and the transition of self-assemblies was determined. The stacked lamellar Lα-phase was prepared without shear forces by a chemical reaction. The stacked lamellar Lα-phase can be transformed into multilamellar vesicles by the shearing forces that occur when the stacked lamellar Lα-phase sample is turned upside down a few times. The multilamellar vesicles can also be transformed into unilamellar vesicles by high shearing forces. These transitions were demonstrated by FF-TEM measurements. Zn2+-induced vesicle formation in the single-chain surfactant solutions was first achieved.展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant No.20243007)the Alexander von Humboldt Foundation+4 种基金the Program of Hundreds Talent of the Chinese Academy of SciencesShandong University(Hao Jingcheng) by the National Natural Science Foundation of China(Grant No.50275142) the Minis try of ScienceTechnology ofChina(Grant No.2202AA302609)(LiuWeimin).
文摘Self-assemblies of amphiphiles in solutions were investigated by using freeze-fracture transmission electron microscopy(FF-TEM). Especially, vesicles were characterized by FF-TEM and the transition of self-assemblies was determined. The stacked lamellar Lα-phase was prepared without shear forces by a chemical reaction. The stacked lamellar Lα-phase can be transformed into multilamellar vesicles by the shearing forces that occur when the stacked lamellar Lα-phase sample is turned upside down a few times. The multilamellar vesicles can also be transformed into unilamellar vesicles by high shearing forces. These transitions were demonstrated by FF-TEM measurements. Zn2+-induced vesicle formation in the single-chain surfactant solutions was first achieved.
