Research progress on AIE cyanostilbene-based self-assembly gels: Design, regulation and applications

An Isothiazolanthrone‐Based Self‐Assembling Anticancer Color‐Changing Dye for Concurrent Imaging and Monitoring of Cell Viability

“…[44] In this context, the studies reported by the research group of Cao, Yi and Zhou in designing several interesting fluorescent self-assembled systems and illustrating their potential applications as sensors for the detection of different analyte is of particular interest. [45][46][47][48] Recently, self-assembling rhodamine based probes have also been designed which can be used for super resolution imaging of nuclei and mitochondrial cristae. [49] In yet another interesting report, a robust reversible self-assembling system composed of a hydrophobic gold nanoparticle (AuNP) core and a shell of pH-responsive dye-incorporated block copolymers was designed and employed as "smart" probes for visualizing the subtle dynamic pH changes among different intracellular compartments, [50] Self-assembling amphiphilic imidazolium-based probe containing a dansyl fluorophore and a long cetyl chain has also been developed for ATP recognition.…”

Functional α-Cyanostilbenes: Sensing to Imaging

“…The 1 H NMR evidence reveals the formation of a phenoxide ion (5) in the presence of a base and a protonated amine derivative in acid media, contributing to the emission changes 15 . The bent α-cyanostilbene (8) tethered with amino groups on two benzene rings 16 8 showed stimuli-responsive emission for acid and base due to the presence of the amine groups. A switchable emission is observed upon adding trifluoroacetic acid (TFA) and base triethylamine (TEA) with conversion between protonated and deprotonated states accompanied by color changes 16 .…”

“…Many organic fluorophores have thus been designed based on these structural scaffolds. Examples include derivatives based on tetraphenylethenes 2 , triphenylethene 3 , distyrylanthracene 4 , distyrylbenzene 5,6 , Perylenes, Pyrene 7 , and naphthalene 8 and have been widely used in various fields, such as chemical sensing, bioimaging, and organic light-emitting diodes (OLEDs).…”

“…All rights reserved. An important scaffold exhibiting such characteristic AIE emission is α-cyanostilbene 5,8,9 .…”

Robust Fluorescent Self-Assembly System for Sensing of Phosgene, Thionyl Chloride, and Oxalyl Chloride

“…The concept of supramolecular self-assembly is a versatile method that can be exploited in the fields of bioimaging, , materials, sensors, oriented synthesis, − and drug delivery . Supramolecular self-assembly can proceed under the synergistic action of weak and reversible noncovalent interactions, such as hydrogen bonds, π–π stacking, van der Waals’ force, electrostatic interaction, and hydrophobicity effect. − According to the weakness and reversibility of noncovalent interactions, supramolecular self-assembly systems exhibit outstanding responses toward external stimuli, such as light, heat, electricity, magnetism, mechanical force, chemical substance, and biomolecules. − In other words, the self-assembly process can be finely adjusted by tuning the noncovalent interactions. We have previously reported that the self-assembly process of two gelators can be tuned by changing solvents and inducing variations in the emission properties, morphology, and surface wettability in solvents. , Low-molecular-weight organic molecular gels, as a kind of self-assembly soft matter, have received immense attention as they can be used for the fabrication of sensors, light-harvesting systems, drug delivery agents, and catalysis.…”