Integrative Self-Sorting in a Three Component System Leading to Formation of Long Fibrous Structures

摘要

abstract_textpIn this paper we report the integrative self-sorting processes in a three-component system consisting of b-CD, a bis-adamantane derivative AD-AD and a bis-pyromellitic diimide derivative PI-PI in a 2: 1: 1 ratio, leading to the slow evolution of long fibers. Using TEM, AFM and time-dependent ICD measurements of the three-component system and the constituent two-component systems (beta-CD/AD-AD and beta-CD/PI-PI), involvement of two social self- sorting and two narcissistic self- sorting processes, which led to the evolution of the long fibers, were identified. Initially a bis-inclusion complex of beta-CD and AD-AD is formed through a social self- sorting process. The bis-inclusion complex undergoes a narcissistic self- assembly to give vesicles. The key step in the integrative self- sorting is binding of PI-PI to the vesicle surface through rim-binding association. The rim-binding motif is effectively exploited herein to perform the functions of vesicle recognition, and vesicle joining./p/abstract_text