0000000000350157

AUTHOR

M. Engel

showing 3 related works from this author

A novel galactose- and arabinose-specific lectin from the sponge Pellina semitubulosa: isolation, characterization and immunobiological properties.

1992

A new lectin from the sponge Pellina semitubulosa is derived which was extracted and purified to homogeneity. The purified lectin is probably a hexamer of polypeptide chains (each M(r) 34,000) which are covalently linked via disulfide linkages; the isoelectric point is 6.1. The lectin displays the following specificities: D-galactose (50% inhibition of hemagglutination at 0.2 mM) = L-arabinose (0.2 mM) greater than D-fucose (1.5 mM) greater than D-glucose (3.0 mM). It precipitates human erythrocytes (A1, A2, A1B, B, and O) with a titer between 2(8) and 2(11) and erythrocytes from sheep and rabbits with a titer between 2(5) and 2(10). The Pellina lectin displays a strong mitogenic effect on …

Interleukin 2HemagglutinationChemical PhenomenaLymphocyte ActivationBiochemistrySubstrate Specificitychemistry.chemical_compoundLectinsmedicineAnimalsLymphocytesAmino AcidsbiologyChemistry PhysicalMacrophagesInterleukinLectinGalactoseGeneral MedicineHemagglutination TestsMolecular biologyArabinosePoriferaTiterIsoelectric pointchemistryBiochemistryConcanavalin AGalactosebiology.proteinInterleukin-2medicine.drugInterleukin-1Biochimie
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Structural Relationships between Floating and Deposited Monolayers of Docosanoic Acid

1991

Floating docosanoic acid (behenic acid) monolayers in the SmI and SmH phase were deposited with the Langmuir-Blodgett technique onto thin polymethylmethacrylate (PMMA) and Formvar substrates and investigated by electron diffraction. The molecular packing of the monolayers on the substrates vary from those on the water surface and are different for different substrates. On PMMA four phases (H, SmB, SmI, SmL) have been identified, depending on the deposition conditions. While SmB and SmI are known for docosanoic acid on the water surface, H and SmL have only been unequivocally observed in other substances or on other subphases. The monolayer structure on Formvar was identical under all deposi…

Materials scienceGeneral Chemical EngineeringAdhesionSurface pressurechemistry.chemical_compoundAdsorptionFormvarchemistryElectron diffractionChemical engineeringPhase (matter)MonolayerOrganic chemistryBehenic acidBerichte der Bunsengesellschaft für physikalische Chemie
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The upgrade of the ALICE TPC with GEMs and continuous readout

2020

Journal of Instrumentation 16(03), P03022 (2021). doi:10.1088/1748-0221/16/03/P03022

Physics - Instrumentation and DetectorsComputer sciencePhysics::Instrumentation and DetectorsFOS: Physical sciences61001 natural sciences114 Physical sciences030218 nuclear medicine & medical imaging03 medical and health sciences0302 clinical medicine0103 physical sciencesMicropattern gaseous detectors (MSGC GEM THGEM RETHGEM MHSP MICROPIC MICROMEGAS InGrid etc)Electronicsddc:610Detectors and Experimental TechniquesInstrumentationphysics.ins-detMathematical PhysicsCMOS readout of gaseous detectorsLarge Hadron Collider010308 nuclear & particles physicsbusiness.industryDetectorTime projection Chambers (TPC)Readout electronicsInstrumentation and Detectors (physics.ins-det)ChipUpgradeGaseous imaging and tracking detectorsGas electron multiplierALICE (propellant)businessComputer hardware
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