6533b854fe1ef96bd12af361
RESEARCH PRODUCT
Perylenetetracarboxylic anhydride as a precursor of fluorescent carbon nanoonion rings
Hermenegildo García BaldovíJose Raul Herance CamachoVíctor Manuel VíctorMaria Mercedes Alvaro RodríguezHermenegildo García Gómezsubject
Materials scienceCell SurvivalPolymerschemistry.chemical_elementNanoparticleQuantum yieldBiocompatible MaterialsPhotochemistryMicroscopy Atomic ForceIn-vitroQUIMICA ORGANICAComplexesEuropiumCell Line TumorSpectroscopy Fourier Transform InfraredOnionsFluorescence microscopeOrganic chemistryHumansFluorescentGeneral Materials ScienceHigh-pressureschemistry.chemical_classificationCarbon nanoonion ringQuantum dotsPolymerFluorescenceCarbonDynamic Light ScatteringHydrocarbonsNanostructuresPhotoluminiscencechemistryMicroscopy FluorescenceQuantum dotBiocompatibilityPerylenetetracarboxylic anhydride.EuropiumCarbondescription
[EN] Thermal annealing at 400 degrees C of perylenetetracarboxylic anhydride in low molecular mass PEG gives rise to the formation of well defined nanoobjects of 2.5 nm height and size distribution from 10 to 65 nm (average 40 nm) after purification of the raw mixture with silicagel chromatography. TEM reveals that the flat nanoobjects are constituted of concentric graphenic rings (0.34 nm interlayer distance). The morphology of the nanoparticles resembles onion rings of nanometric dimensions (nanoonion rings C-NOR). C-NOR particles have an excitation dependent emission with lambda(em) from 430 to 570 nm and a maximum emission quantum yield of 0.49. C-NOR particles can be internalized into Hep3B human hepatoma cells as determined by confocal fluorescence microscopy and are remarkably biocompatible affecting slightly cell viability according to the MTT test.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-07-03 |