0000000000359265

AUTHOR

Giorgio Sberveglieri

0000-0003-0080-8117

showing 2 related works from this author

Bovine Serum Albumin protofibril-like aggregates formation: Solo but not simple mechanism

2011

We report an experimental study on the model protein Bovine Serum Albumin (BSA), with the aim of elucidating the mechanisms by which a fully folded globular protein undergoes different aggregation pathways leading to the formation of amyloid fibrils or amorphous aggregates. We observe thermally induced formation of fibrillar structures at pH far from the protein isoelectric point. The increase of electrostatic repulsion results in protein destabilization and in modifications of inter and intra-molecular interactions leading to the growth of fibril-like aggregates stabilized by inter-molecular-β sheets. The aggregation kinetics is studied by means of fluorescence techniques, light scattering…

Circular dichroismProtein ConformationGlobular proteinStatic ElectricityBiophysicsProtein aggregationBiochemistryprotein aggregation amyloid fibril fluorescence conformational changeschemistry.chemical_compoundProtein structureAnimalsBenzothiazolesBovine serum albuminMolecular Biologychemistry.chemical_classificationbiologyTemperatureTryptophanSerum Albumin BovineHydrogen-Ion ConcentrationSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)KineticsThiazolesCrystallographyIsoelectric pointchemistryProtein destabilizationbiology.proteinThermodynamicsCattleThioflavinProtein Multimerization
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SnO2 : Sb - A new material for high-temperature MEMS heater applications: Performance and limitations

2007

MEMS micro heater devices capable of long-term operation at temperatures up to 1000 degrees C are presented. The enhanced long-term stability has been achieved by employing antimony-doped tin oxide (SnO2:Sb) as a substitute for the conventionally used noble metal heater resistors. A detailed investigation of its high-temperature stability reveals that degradation is caused by out-diffusion of Sb impurities from the SnO2 film. (c) 2007 Elsevier B.V. All rights reserved.

Materials scienceFABRICATIONengineering.materialFILMSlaw.inventionlawImpurityMaterials ChemistryElectrical and Electronic EngineeringSILICONInstrumentationMicroelectromechanical systemsbusiness.industryMetals and AlloysCondensed Matter PhysicsTin oxideSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsMETALengineeringOptoelectronicsDegradation (geology)Noble metalResistorbusinessGAS SENSORS
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