0000000000004942

AUTHOR

Marcella Bonchio

showing 4 related works from this author

Highly selective detection of Epinephrine at oxidized Single-Wall Carbon Nanohorns modified Screen Printed Electrodes (SPEs)

2014

Oxidized Single-Wall Carbon Nanohorns (o-SWCNHs) were used, for the first time, to assemble chemically modified Screen Printed Electrodes (SPEs) selective towards the electrochemical detection of Epinephrine (Ep), in the presence of Serotonine-5-HT (S-5HT), Dopamine (DA), Nor-Epineprhine (Nor-Ep), Ascorbic Acid (AA), Acetaminophen (Ac) and Uric Acid (UA). The Ep neurotransmitter was detected by using Differential Pulse Voltammetry (DPV), in a wide linear range of concentration (2-2500 μM) with high sensitivity (55.77 A M(-1) cm(-2)), very good reproducibility (RSD% ranging from 2 to 10 for different SPEs), short response time for each measurement (only 2s) and low detection of limit (LOD=0.…

Neurotransmitters; Screen Printed Electrodes (SPEs); Selective detection; SWCNHs; Biosensing Techniques; Electrochemical Techniques; Electrodes; Epinephrine; Limit of Detection; Nanostructures; Oxidation-Reduction; Reproducibility of Results; Biophysics; Biomedical Engineering; Biotechnology; Electrochemistry; Medicine (all)NanostructureEpinephrineScreen Printed Electrodes (SPEs)ElectrodeBiophysicsAnalytical chemistryBiomedical EngineeringReproducibility of ResultBiosensing TechniquesElectrochemistryNanomaterialsSWCNHs; Screen Printed Electrodes (SPEs); Neurotransmitters; Selective detectionBiosensing TechniqueSelective detectionLimit of DetectionElectrochemistrySWCNHSettore CHIM/01 - Chimica AnaliticaNeurotransmitterElectrodesDetection limitSWCNHsReproducibilityElectrochemical TechniqueChemistryMedicine (all)Reproducibility of ResultsGeneral MedicineElectrochemical TechniquesNeurotransmittersAscorbic acidNanostructuresLinear rangeBiophysicElectrodeDifferential pulse voltammetryOxidation-ReductionNuclear chemistryBiotechnology
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Supramolecular Design of Low-dimensional Carbon Nano-hybrids encoding a Polyoxometalate-bis-Pyrene Tweezer

2014

A novel bis-pyrene tweezer anchored on a rigid polyoxometalate scaffold fosters a unique interplay of hydrophobic and electrostatic supramolecular interactions, to shape carbon nanostructures (CNSs)-based extended architectures.

Materials Chemistry2506 Metals and AlloysSurfaces Coatings and FilmCarbon nanotubelaw.inventionCatalysiCoatings and Filmschemistry.chemical_compoundlawhybrid materialsMaterials ChemistryCarbon nanostructures; recognition; hybrid materials; polyoxometalatesMaterials Chemistry2506 Metals and AlloyPyrenesPyreneElectronic Optical and Magnetic MaterialChemistry (all)Metals and AlloysTungsten CompoundsSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsSurfacesSpectrophotometryPolyoxometalatePyrenerecognitionLangmuir-Schaefer filmsHybrid materialHydrophobic and Hydrophilic InteractionsCarbon nanostructuresMaterials scienceStatic ElectricitySupramolecular chemistrychemistry.chemical_elementNanotechnologyCeramics and CompositeCarbon nanotubeCatalysisNano-ElectronicpolyoxometalatesChemistry (all); Catalysis; Ceramics and Composites; Electronic Optical and Magnetic Materials; Surfaces Coatings and Films; Materials Chemistry2506 Metals and Alloys; 2506Optical and Magnetic Materialscarbon nanotubeHybrid materialPolyoxometalateGeneral ChemistryCarbon nanostructuresCarbonNanostructureschemistryCeramics and Composites2506Supramolecular chemistryCarbon
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Sensor Properties of Pristine and Functionalized Carbon Nanohorns

2016

Nanodispersions of pristine single-wall carbon nanohorns (i.e., p-SWCNHs) and oxidized-SWCNHs (i.e.; o-SWCNHs) were used to modify screen printed electrode (SPE). p-SWCNHs and o-SWCNHs were fully characterized by using several analytical techniques, as: HR-TEM (High Resolution-Transmission Electron Microscopy), FE-SEM/EDX (Field Emission-Scanning Electron Microscopy/Energy Dispersive X-ray Analysis), Raman spectroscopy, thermogravimetric analysis, differential thermal analysis (DTA), and the Brunauer-Emmett-Teller (BET) method. The chemically modified SPEs were also characterized with Cyclic Voltammetry (CV), using several different electro-active targets. In all cases, p-SWCNHs showed bett…

Carbon NanohornThermogravimetric analysisScreen Printed ElectrodesMaterials scienceAnalytical chemistrychemistry.chemical_element02 engineering and technologyGlassy carbon010402 general chemistryElectrochemistry01 natural sciencesCarbon NanohornsAnalytical Chemistrysymbols.namesakeDifferential thermal analysisElectrochemistrySettore CHIM/01 - Chimica AnaliticaSingle-WallCarbon Nanohorns; Screen Printed Electrodes; Single-Wall; Analytical Chemistry; ElectrochemistryScreen Printed Electrode021001 nanoscience & nanotechnology0104 chemical scienceschemistryElectrodesymbolsCyclic voltammetry0210 nano-technologyRaman spectroscopyCarbonElectroanalysis
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Thermal behaviour and electrochemical properties of bis(trifluoromethanesulfonyl)amide and dodecatungstosilicate viologen dimers

2012

We report the synthesis and characterization of dimeric viologen salts (1',1''-(alkane-1,n-diyl)bis(1-ethyl-4,4'-bipyridinium) with n = 4-10) with bis(trifluoromethanesulfonyl)amide (bistriflimide, Tf(2)N(-)) as a counteranion. For n = 4, 5 and 6, and for the nonylviologen cation (1,1'-dinonyl-4,4'-bipyridinium) we also prepared salts with the totally inorganic dodecatungstosilicate anion, SiW(12)O(40)(4-), featuring a poly-charged surface and nanosized dimensions. The materials have been characterized by means of calorimetric techniques, X-ray diffraction and solid state NMR and a comparison is made with analogous monomeric viologen salts exhibiting smectic mesophases. A strong odd-even ef…

ChemistryDimerGeneral Physics and AstronomyViologenPhotochemistryNMRX-ray diffractionviologen dimerchemistry.chemical_compoundCrystallographySolid-state nuclear magnetic resonanceSettore CHIM/03 - Chimica Generale E InorganicaLiquid crystalAmidepolyoxometalateIonic liquidmedicineBistriflimidePhysical and Theoretical ChemistryCyclic voltammetrycalorimetrymedicine.drug
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