Anion-driven supramolecular gel: naked-eye detection of picric acid, facilitating in situ formation of gel nanocomposites and enabling solid-state anion exchange
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View abstract on PubMed
Summary
This summary is machine-generated.Researchers developed a tripodal receptor (GUA-IND) that forms a supramolecular gel (GI-G) in response to sulfate/bisulfate anions. This gel enables naked-eye detection of picric acid and forms nanocomposites with antioxidant and antimicrobial properties.
Area Of Science
- Supramolecular Chemistry
- Materials Science
- Anion Recognition
Background
- Tripodal receptors are crucial for selective molecular recognition.
- Anion-induced supramolecular gelation is a rare phenomenon.
- Developing novel sensors and functional materials is an ongoing challenge.
Purpose Of The Study
- To synthesize a novel tripodal receptor (GUA-IND) with indole moieties.
- To investigate anion-induced supramolecular gelation behavior.
- To explore the potential applications of the resulting gel and its nanocomposites.
Main Methods
- Synthesis of the tripodal Schiff base receptor GUA-IND.
- Induction of organohydrogel (GI-G) formation by sulfate/bisulfate anions.
- Stimuli-responsive studies with nitro-aromatic compounds, including picric acid.
- In situ formation of copper and silver nanocomposites (GI-Cu-G, GI-Ag-G).
- Evaluation of antioxidant and antimicrobial activities.
- Investigation of solid-state anion exchange properties.
Main Results
- Selective formation of an organohydrogel (GI-G) triggered by SO<sub>4</sub><sup>2-</sup>/HSO<sub>4</sub><sup>-</sup> anions.
- Naked-eye detection of picric acid (PA) by the supramolecular gel.
- Development of GI-Cu-G and GI-Ag-G nanocomposites with antioxidant and antimicrobial properties.
- Demonstration of versatile solid-state anion exchange capabilities.
Conclusions
- The GUA-IND receptor exhibits unique anion-induced supramolecular gelation.
- The developed supramolecular gel serves as an effective sensor for picric acid.
- The nanocomposites possess valuable biological activities, opening avenues for biomedical applications.
- The receptor's design highlights versatility for advanced material development.
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