Related Experiment Video
Updated: Feb 3, 2026

Facile Protocol for the Synthesis of Self-assembling Polyamine-based Peptide Amphiphiles PPAs and Related Biomaterials
Published on: June 25, 2018
Self-Assembly of Amphiphilic Schiff Base and Selectively Turn on Circularly Polarized Luminescence by Al3
Qingxian Jin1, Shuyu Chen1,2, Hejin Jiang2
1Henan Provincial Key Laboratory of Surface & Interface Science , Zhengzhou University of Light Industry , Zhengzhou , Henan 450002 , China.
Abstract:
We designed glutamide-derived amphiphilic Schiff bases containing three different aldehyde moieties for the fabrication of circularly polarized luminescence (CPL) emitting materials. Upon self-assembly in acetonitrile, Schiff bases featuring 4-(dimethylamino)-2-hydroxylbenzaldehyde and 1-hydroxy-2-naphthaldehyde groups form supramolecular gels with twist and fiber structures, respectively, whereas Schiff bases featuring 2-hydroxy-1-naphthaldehyde groups form precipitation with flake structures. Although emission and circular dichroism signals can be detected from the supramolecular gels formed by amphiphilic Schiff bases, none of them exhibits a circularly polarized luminescence (CPL). Although Mg2+, Zn2+, and Al3+ can significantly enhance the fluorescence of the Schiff bases, interestingly, only Al3+ ion is able to turn on the CPL emission. This study on the one hand provides a simple method for the fabrication of CPL-emitting supramolecular materials and on the other hand offers a novel way for the sensing of aluminum ion with supramolecular materials.
Related Concept Videos
Group Polarization
Molecular Shape and Polarity
Deformation in a Circular Shaft
Polar Coordinates
Stress Concentrations in Circular Shafts
Protein Complex Assembly
Many viruses self-assemble into a fully functional unit using the infected host cell to...

