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RESEARCH PRODUCT
Nitrogen-Doped Carbon Nanodots-Ionogels: Preparation, Characterization, and Radical Scavenging Activity
Renato NotoFrancesca ArcudiLuka ĐOrđevićFrancesca D'annaCarla RizzoNadka Tzankova DintchevaMaurizio PratoMaurizio Pratosubject
carbon nanostructurePhase transitionMaterials scienceOpacityKineticsGeneral Physics and Astronomychemistry.chemical_element02 engineering and technologycarbon dots; carbon nanostructures; dicationic organic salts; fluorescence; ionogels; radical scavenging; supramolecular gels010402 general chemistry01 natural sciencesdicationic organic saltschemistry.chemical_compoundRheologycarbon dotsGeneral Materials ScienceThermal stabilitycarbon dotradical scavengingGeneral Engineeringsupramolecular gelsSettore CHIM/06 - Chimica Organica021001 nanoscience & nanotechnologycarbon nanostructures0104 chemical sciencesSettore ING-IND/22 - Scienza E Tecnologia Dei MaterialiionogelchemistryChemical engineeringionogelsIonic liquidcarbon nanostructures carbon dots supramolecular gels ionogels dicationic organic salts fluorescence radical scavengingdicationic organic saltfluorescence0210 nano-technologyHybrid materialCarbondescription
Hybrid diimidazolium-based ionogels were obtained by dispersing nitrogen-doped carbon nanodots (NCNDs) in ionic liquid (IL) solutions and by using dicationic organic salts as gelators. The properties of the NCND-ionogels were studied in terms of thermal stability, mechanical strength, morphology, rheological, and microscopic analyses. Insights into the formation of the hybrid soft material were attained from kinetics of sol-gel phase transition and from estimating the size of the aggregates, obtained from opacity and resonance light-scattering measurements. We demonstrate that, on one hand, NCNDs were able to favor the gel formation both in the presence of gelating and nongelating ILs. On the other hand, the gelatinous matrix retains and, in some cases, improves the properties of NCNDs. The NCND-ionogels showed the typical fluorescence emission of the carbon dots and a notable antiradical activity, with higher efficiency as compared to the single components. The presented hybrid materials hold great promise for topical applications in antioxidant fields.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-01-01 |