Search results for "Allium"

showing 10 items of 385 documents

High accuracy Raman measurements using the Stokes and anti-Stokes lines

1997

We show that by measuring the separation between the Stokes and anti-Stokes peaks excited by two different laser lines we obtain a very precise determination of absolute phonon energies. The method is useful for measuring small changes of these energies with strain, temperature, laser power, etc. It doubles the changes and avoids the necessity of using the reference lines in the Raman spectra. The method can be applied for the determination of phonon deformation potentials, for the characterization of strained heteroepitaxial layers, and for micro-Raman analysis of strain in silicon integrated circuits. We give examples of phonon shifts in Si, Ge, GaAs, InAs, and GaP as a function of applie…

SiliconMaterials scienceSiliconRaman SpectraPhononAnalytical chemistryGeneral Physics and Astronomychemistry.chemical_elementIndium CompoundsMolecular physicsGallium arsenidelaw.inventionGallium Arsenidesymbols.namesakechemistry.chemical_compoundThermo-Optical EffectsCondensed Matter::Materials Sciencelaw:FÍSICA [UNESCO]Laser power scalingSemiconductor Epitaxial LayersLaser Beam EffectsElemental SemiconductorsSilicon ; Germanium ; Elemental Semiconductors ; Gallium Arsenide ; Indium Compounds ; Gallium Compounds ; III-V Semiconductors ; Raman Spectra ; Phonon Spectra ; Semiconductor Epitaxial Layers ; Integrated Circuit Technology ; Deformation ; Laser Beam Effects ; Thermo-Optical EffectsGermaniumUNESCO::FÍSICAIII-V SemiconductorsPhonon SpectraLaserCondensed Matter::Mesoscopic Systems and Quantum Hall EffectIntegrated Circuit TechnologyDeformationchemistryExcited stateGallium CompoundssymbolsDeformation (engineering)Raman spectroscopy
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Solar blind detectors based on AlGaN grown on sapphire

2005

Solar blind detectors have been fabricated based on AlGaN heterostructures grown on sapphire by molecular beam epitaxy or chemical vapour deposition. MSM and Schottky detectors were investigated. High performance devices have been obtained thanks to an optimization of the material crystalline quality (including the suppression of cracks) and of the process. We show that the spectral limitations of MSM detectors are dictated by intrinsic phenomena that are analysed in details while the responsivity and detectivity also depends on the technological process with a special emphasis on the geometry of finger and contact pads. One and two dimensional arrays have been fabricated and preliminary re…

SiliconMaterials sciencebusiness.industryFlame DetectionPhotodetectorsSchottky diodePhotodetectorHeterojunctionultraviolet photodetectorsChemical vapor depositionGallium nitrideSettore ING-INF/01 - ElettronicaPhotodiodelaw.inventionResponsivitylawSapphireDetectivityOptoelectronicsSolar-blind detector UV detector AlGaNbusinessPhotodiodesMolecular beam epitaxyFilms
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Cytoprotection assessment against mycotoxins on HepG2 cells by extracts from Allium sativum L

2021

Abstract Cytoprotection effects of Allium sativum L garlic extract from a local garlic ecotype from Ferrara (Italy) on hepatocarcinoma cells, HepG2 cells, is presented in this study. This garlic type is known as Voghiera garlic and has been characterized as PDO (Protected designation of Origin) product. Voghiera garlic extract (VGE) was evaluated against beauvericin (BEA) and two zearalenone (ZEA) metabolites (α-zearalenol (α-ZEL) and β-zearalenol (β-ZEL))-induced cytotoxicity on HepG2 cells by the MTT (3–4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) assay, over 24 h and 48 h. Direct treatment, simultaneous treatment and pre-treatment strategies at the dilution 1:16–1:00 for VG…

Socio-culturaleToxicology03 medical and health scienceschemistry.chemical_compound0404 agricultural biotechnologyPDOHumansVoghieraFood scienceGarlicMycotoxinCytotoxicityHepG2 cellsZearalenoneBeauvericin; Garlic; HepG2 cells; PDO; Voghiera; α-ZEL; β-ZEL; Cytoprotection; Garlic; Hep G2 Cells; Humans; Mycotoxins030304 developmental biology0303 health sciencesHep G2 Cells04 agricultural and veterinary sciencesGeneral Medicineβ-ZELMycotoxinsBeauvericinAllium sativum040401 food scienceCytoprotectionBeauvericinDirect Treatmentchemistryα-ZELCytoprotectionHepg2 cellsFood ScienceFood and Chemical Toxicology
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CCDC 1581596: Experimental Crystal Structure Determination

2018

Related Article: Jamie Hicks, Petra Vasko, Jose M. Goicoechea, Simon Aldridge|2018|Nature (London)|557|92|doi:10.1038/s41586-018-0037-y

Space GroupCrystallography(27-di-t-butyl-N4N5-bis[26-diisopropylphenyl]-99-dimethyl-9H-xanthene-45-diamido)-iodo-gallium(iii) toluene solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1037192: Experimental Crystal Structure Determination

2016

Related Article: Riccardo Gava, Andrea Olmos, Bárbara Noverges, Teresa Varea, Eleuterio Álvarez, Tomás R. Belderrain, Ana Caballero, Gregorio Asensio, and Pedro J. Pérez|2015|ACS Catalysis|5|3726|doi:10.1021/acscatal.5b00718

Space GroupCrystallography(hydrogen tris(4-bromo-35-bis(trifluoromethyl)pyrazolyl)borate-NN'N'')-thalliumCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 171410: Experimental Crystal Structure Determination

2002

Related Article: F.Thomas, S.Schulz, M.Nieger, K.Nattinen|2002|Chem.-Eur.J.|8|1915|doi:10.1002/1521-3765(20020415)8:8<1915::AID-CHEM1915>3.0.CO;2-Z

Space GroupCrystallography(mu~2~-bis(Trimethylsilyl)arsine)-tricarbonyl-dimethyl-(4-(dimethylamino)pyridyl)-gallium-nickel(0)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 821786: Experimental Crystal Structure Determination

2011

Related Article: M.Risto, T.Chivers, J.Konu|2011|Dalton Trans.|40|8238|doi:10.1039/c1dt10646e

Space GroupCrystallography(mu~2~-bis(bis(diphenylphosphorothioyl)methanido) diselenide)-di-thallium(i) dichloromethane solvateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 672478: Experimental Crystal Structure Determination

2008

Related Article: Hyui Sul Lee, S.-O.Hauber, D.Vindus, M.Niemeyer|2008|Inorg.Chem.|47|4401|doi:10.1021/ic800029z

Space GroupCrystallographyCrystal SystemCrystal Structure(3-(eta^5^-2462''4''6''-Hexamethyl-11':3';1''-terphenyl-2'-yl)-1-(eta^4^-2'4'6'-triisopropylbiphenyl-2-yl)triazenido)-thalliumCell ParametersExperimental 3D Coordinates
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CCDC 906036: Experimental Crystal Structure Determination

2013

Related Article: B.P.Waldron, D.Parker, C.Burchardt, D.S.Yufit, M.Zimny, F.Roesch|2013|Chem.Commun.|49|579|doi:10.1039/c2cc37544c

Space GroupCrystallographyCrystal SystemCrystal Structure(N-(14-bis(carboxymethyl)-6-methyl-14-diazepan-6-yl)-N-methylglycinato)-gallium hemihydrateCell ParametersExperimental 3D Coordinates
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CCDC 672476: Experimental Crystal Structure Determination

2008

Related Article: Hyui Sul Lee, S.-O.Hauber, D.Vindus, M.Niemeyer|2008|Inorg.Chem.|47|4401|doi:10.1021/ic800029z

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(13-bis(eta^5^-2'4'6'-Triisopropylbiphenyl-2-yl)triazenido)-thalliumExperimental 3D Coordinates
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