Optimal Method to Realize Quantitative Detection of 1D and 2D Nanoassemblies Based on AIE-Active Bolaamphiphilic Molecules

Controllable transformation between the bolaamphiphilic molecule assemblies with different morphological nanostructures represents an exciting new direction for materials. However, there are still significant challenges for the quantitative detection and real-time monitoring of a controllable nanoself-assembly process due to insufficient measuring methods. Herein, we propose a new and effective fluorescence technology for realizing quantitative detection of a controllable conversion process of one-dimensional (1D)/two-dimensional (2D) nanoassemblies by introducing AIEgens as the fluorescence signal part. First, an aggregation-induced emission (AIE)-active bolaamphiphilic molecule (TPE-C8-Br) was designed and synthesized by incorporating tetraphenylethene (TPE) as the chromophore into the cationic amphiphile. Subsequently, the 1D nanofibrous morphology of TPE-C8-Br was successfully converted into the 2D rectangular and circular sheet of tosylate (TPE-C8-Ts) and sodium 1-hexanesulfonate (TPE-C8-HS) with…