Nanofibers generated from linear carbazole-based organogelators for the detection of explosives

Abstract

Emitting nanofibers based on tricarbazole derivatives have been fabricated via organogelation and used as fluorescence sensors to detect nitroaromatics.

Supercoiled fibres of self-sorted donor–acceptor stacks: a turn-off/turn-on platform for sensing volatile aromatic compounds

“…These considerations prompted us to explore the potential of fluorescent donor–acceptor assemblies designed based on the principles of nanoarchitectonics 4 for the sensing of volatile analytes. A number of reports are available on the sensing of VOCs such as aromatic amines 5 and nitroaromatics 3 , 6 , 7 that generally cause fluorescence quenching of a probe. In this context, self-sorted supramolecular assemblies 8 – 10 are an ideal platform for the sensing of VOCs.…”

Strong Fluorescence Film of Dicyano Oligo(P‐Phenylenevinylene) Supramolecular Gel for Aromatic Amine Vapors Detection

“…Easy alteration of these weak interactions endows supramolecular gels, especially fluorescence π‐gels, with ability to respond to external stimuli. For example, fluorescence π‐gels have been widely utilized as sensing materials to detect metal cations, anions, and dangerous gases and acid vapors because of their large surface area and porous microstructure. As a porous xerogel film is also used as a sensing material, fluorescence quenching induced by analytes, such as explosives and organic amine vapors, is amplified because of the exciton migration within self‐assemblies .…”

Melt‐Processable Dynamic‐Covalent Poly(hemiaminal) Organogels as Scaffolds for UV‐Induced Polymerization

“…Therefore, the nature of the gelling agent has a tremendous impact on the thermodynamic, mechanical, and other properties of the gel . LMW organogels have been used for polymer reinforcement, porous materials, sensing, and drug delivery . Several non‐aqueous polymeric gel systems have been investigated as adsorbents, drug delivery vehicles, synthetic biological tissues, or cleaning agent scaffolds for artwork conservation .…”