Search results for " Alloys"

showing 10 items of 1469 documents

Manganese(II) complexes of scorpiand-like azamacrocycles as MnSOD mimics.

2011

Mn(II) complexes of scorpiand-type azamacrocycles constituted by a tretrazapyridinophane core appended with an ethylamino tail including 2- or 4-quinoline functionalities show very appealing in vitro SOD activity. The observed behaviour is related to structural and electrochemical parameters.

Biomimetic materialsAza CompoundsManganeseMacrocyclic CompoundsStereochemistrySuperoxide DismutaseMetals and AlloysMolecular Conformationchemistry.chemical_elementGeneral ChemistryManganeseElectrochemistryCrystallography X-RayCatalysisMolecular conformationSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryBiomimetic MaterialsCoordination ComplexesMaterials ChemistryCeramics and CompositesQuinolinesAza CompoundsChemical communications (Cambridge, England)
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The magnetic properties of ferrocene based macromolecules

1993

Abstract Magnetic susceptibility data for conjugatively linked biferrocenes and a methylene bridged ferrocene polymer are presented. In 9,10-di((2-ferrocenyl)vinyl)anthracene a rigid divinylanthracene bridge is connecting two ferrocene units, and the oxidation of both iron centers leads to an antiferromagnetic coupling. In contrast, ferromagnetic coupling between iron centers is indicated for 2,2'-cis,trans-di((2-ferrocenyl)vinyl)biphenyl, where a twist around the phenyl-phenyl bond in the divinylbiphenyl bridging molecule is likely to occur.

BiphenylAnthraceneStereochemistryMechanical EngineeringMetals and AlloysCondensed Matter PhysicsMagnetic susceptibilityElectronic Optical and Magnetic Materialschemistry.chemical_compoundCrystallographychemistryFerroceneFerromagnetismMechanics of MaterialsMaterials ChemistryMoleculeMethyleneMacromoleculeSynthetic Metals
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Assembly of a planar, tricyclic B4N8 framework with s-indacene structure.

2007

A neutral, formally 16pi-electron, tricyclic tetrahydrazidotetraborane was obtained in a two-step procedure involving self-assembly of a dilithiodiborate with B(4)N(8) framework and subsequent oxidation of the phenylborate moieties to boranes and biphenyl using Fe(II) as an oxidant.

Biphenylchemistry.chemical_classificationChemistryMetals and AlloysBoranesGeneral ChemistryCatalysisSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialschemistry.chemical_compoundPlanarComputational chemistryMaterials ChemistryCeramics and CompositesOrganic chemistryTricyclicChemical communications (Cambridge, England)
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Enhancement of SOD activity in boehmite supported nanoreceptors

2018

The binuclear Cu2+ complex of a pyridinophane polyamine ligand ranking amongst the fastest SOD mimetics so far reported displays a remarkable SOD activity enhancement when grafted to the surface of boehmite (γ-AlO(OH)) nanoparticles (BNPs).

Boehmite010405 organic chemistryLigandChemistryMetals and AlloysNanoparticleGeneral ChemistryQuímica010402 general chemistry01 natural sciencesCatalysis0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialschemistry.chemical_compoundPolymer chemistryMaterials ChemistryCeramics and CompositesPolyamine
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Grafted squaramide monoamine nanoparticles as simple systems for sulfate recognition in pure water.

2012

New simple systems formed by a chain containing a squaramide function and a quaternised amine group attached to boehmite or silica-coated boehmite nanoparticles are able to discriminate anions in pure water.

BoehmiteMetals and AlloysSquaramideNanoparticleGeneral ChemistryCatalysisSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialschemistry.chemical_compoundMonoamine neurotransmitterchemistryPolymer chemistryMaterials ChemistryCeramics and CompositesOrganic chemistryAmine gas treatingSulfateChemical communications (Cambridge, England)
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One-pot preparation of surface modified boehmite nanoparticles with rare-earth cyclen complexes.

2007

We report on the one-pot synthetic procedure of cyclen derivatives bearing three acetate groups attached on boehmite nanoparticles, the complexing capabilities of these inorganic–organic hybrid materials with rare earth cations, and the behaviour as contrast agents or fluorescence probes. Delgado Pinar, Estefania, Estefania.Delgado@uv.es ; Frias Martinez, Juan Carlos, Juan.Frias@uv.es ; Albelda Gimeno, Maria Teresa, Teresa.Albelda@uv.es ; Alarcon Navarro, Javier, Javier.Alarcon@uv.es ; Garcia-España Monsonis, Enrique, Enrique.Garcia-Es@uv.es

BoehmiteSurface PropertiesUNESCO::QUÍMICARare earthInorganic chemistryNanoparticleAluminum HydroxideCyclams:QUÍMICA [UNESCO]FluorescenceCatalysischemistry.chemical_compoundSynteticCyclenHeterocyclic CompoundsPolymer chemistryMaterials ChemistryNanoparticles ; Syntetic ; Acetate ; Capabilities ; Inorganic-organic ; FluorescenceAluminum OxideInorganic organicInorganic-organicAcetateSurface modifiedUNESCO::QUÍMICA::Química analíticaMetals and AlloysGeneral ChemistryCapabilitiesFluorescenceSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialschemistry:QUÍMICA::Química analítica [UNESCO]Ceramics and CompositesNanoparticlesMetals Rare EarthHybrid materialChemical communications (Cambridge, England)
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Osseous response on linear and cyclic RGD-peptides immobilized on titanium surfaces in vitro and in vivo

2017

Biomimetic surface modifications of titanium implants using the Arg-Gly-Asp-sequence (RGD) are promising to accelerate bone healing in cases of medical implants. Therefore, we compared the impact of linear and cyclic RGD (l- and c-RGD) covalently coupled onto titanium surfaces on the osseous response in vitro and in vivo. In vitro, osteoblasts' behaviour on different surfaces (unmodified, amino-silanized (APTES), l- and c-RGD) was analysed regarding adhesion (fluorescence microscopy), proliferation (resazurin stain) and differentiation (RT-PCR on alkaline phosphatase (AP) & osteocalcin (OC)). In vivo, osteosynthesis screws (unmodified n=8, l-RGD n=8, c-RGD n=8) were inserted into the proxim…

Bone growthMaterials sciencebiologyMetals and AlloysBiomedical Engineering030206 dentistry02 engineering and technologyBone healingAdhesion021001 nanoscience & nanotechnologyIn vitroBiomaterials03 medical and health sciences0302 clinical medicineIn vivoCeramics and CompositesFluorescence microscopeOsteocalcinbiology.proteinAlkaline phosphatase0210 nano-technologyBiomedical engineeringJournal of Biomedical Materials Research Part A
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A new chromo-fluorogenic probe based on BODIPY for NO2 detection in air

2014

[EN] A novel colorimetric probe for the selective and sensitive detection of NO2 in solution and in air based on a BODIPY core containing an oxime group has been prepared.

Boron CompoundsDesignNitrogen DioxidePhotochemistryCatalysisChemistry Techniques Analyticalchemistry.chemical_compoundQUIMICA ORGANICASelective detectionMaterials ChemistryDyesFluorescent DyesMolecular StructureChemistryAirQUIMICA INORGANICAMetals and AlloysGeneral ChemistryOximeSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsFluorescent-probeCeramics and CompositesColorimetryNitrogen-DioxideBODIPY
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First bodipy–DOTA derivatives as probes for bimodal imaging

2010

The synthesis and the photophysical studies of the first bodipy-DOTA and its In(III), Ga(III) and Cu(II) complexes are reported. The introduction of an isothiocyanate handle generates a new bimodal imaging agent capable of both optical and nuclear imaging.

Boron CompoundsNuclear imagingStereochemistryMolecular ConformationGalliumIndiumCatalysisMolecular conformationHeterocyclic Compounds 1-Ringchemistry.chemical_compoundCoordination ComplexesMaterials ChemistryDOTAFluorescent DyesTomography Emission-Computed Single-PhotonMetals and AlloysGeneral ChemistryCombinatorial chemistryImaging agentSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryPositron-Emission TomographyIsothiocyanateCeramics and CompositesBODIPYCopperChemical Communications
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Chromo-fluorogenic BODIPY-complexes for selective detection of V-type nerve agent surrogates

2014

Two new Eu3+ and Au3+ BODIPY-complexes capable of chromofluorogenically detecting micromolar concentrations of V-type nerve agent surrogates by a simple displacement assay are described

Boron CompoundsSURFACECHEMICAL WARFARE AGENTSCatalysischemistry.chemical_compoundQUIMICA ORGANICAEuropiumMIMICSOrganometallic CompoundsMaterials ChemistrymedicineSENSORSNerve agentMolecular StructureQUIMICA INORGANICAMetals and AlloysOrganothiophosphorus CompoundsGeneral ChemistryCombinatorial chemistrySurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryCeramics and CompositesGoldBODIPYGOLD(III) COMPLEXESDYESmedicine.drug
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