Search results for "matrix assisted laser desorption ionization time of flight mass spectrometry"

showing 2 items of 2 documents

Cellular effects of bacterial N-3-Oxo-dodecanoyl-L-Homoserine lactone on the sponge Suberites domuncula (Olivi, 1792): insights into an intimate inte…

2014

International audience; Sponges and bacteria have lived together in complex consortia for 700 million years. As filter feeders, sponges prey on bacteria. Nevertheless, some bacteria are associated with sponges in symbiotic relationships. To enable this association, sponges and bacteria are likely to have developed molecular communication systems. These may include molecules such as N-acyl-L-homoserine lactones, produced by Gram-negative bacteria also within sponges. In this study, we examined the role of N-3-oxododecanoyl-L-homoserine lactone (3-oxo-C12-HSL) on the expression of immune and apoptotic genes of the host sponge Suberites domuncula. This molecule seemed to inhibit the sponge inn…

ProteomicsApoptosisPathogenesisPathology and Laboratory MedicineBiochemistrycaspase 74-Butyrolactonecaspase 3lcsh:ScienceCytoskeletoncaspase like 7 gene0303 health sciencesToll-like receptorMarine Ecologytoll like receptorGenomicsproto oncogeneEndocytosisCell biologySuberites domunculaCellular Structures and Organellesalpha actininCell signalingtoll like receptor associated factor 6Gram negative bacteriumparacrine signalingMicrobiology03 medical and health sciencesGeneticsRNA Messengerhost pathogen interactionprotein expressiontwo dimensional electrophoresisBacteria030306 microbiologyEcology and Environmental Scienceslcsh:RBiology and Life SciencesComputational BiologyImmunity Innatecarrier proteinSpongebacterial membranelcsh:Qimmunological toleranceSuberitesProtein AbundanceSuberitessuberites domuncula[SDV]Life Sciences [q-bio]lcsh:MedicineMolecular Cell BiologyMedicine and Health Sciencesinnate immunityperforinMultidisciplinaryEcologybiologymessenger RNAarticlecell communicationAnimal Modelsmatrix assisted laser desorption ionization time of flight mass spectrometryunclassified drugPoriferaHost-Pathogen InteractionscytotoxicityactinTranscriptome Analysishormone actionResearch ArticleSymbiotic bacteriaprotein bcl 2Marine BiologycofilinResearch and Analysis Methodsn (3 oxododecanoyl)homoserine lactoneMicrobial EcologycogninModel OrganismsHomoserineAnimalscontrolled study14. Life underwatergeneSymbiosiscell viabilityadenosine triphosphatase030304 developmental biologynonhumanChemical EcologyMembrane ProteinsCell Biologytumor necrosis factor receptor associated factor 6Genome Analysisbiology.organism_classificationalpha tubulinGene Expression RegulationMembrane proteingene expressioncaspase like 3 geneGenome Expression AnalysisBacteriaPLoS ONE
researchProduct

A statistical design of experiments for optimizing the MALDI-TOF-MS sample preparation of polymers. An application in the assessment of the thermo-me…

2011

[EN] The sample preparation procedure for MALDI-TOF MS of polymers is addressed in this study by the application of a statistical Design of Experiments (DoE). Industrial poly (ethylene terephthalate) (PET) was chosen as model polymer. Different experimental settings (levels) for matrixes, analyte/matrix proportions and concentrations of cationization agent were considered. The quality parameters used for the analysis were signal-to-noise ratio and resolution. A closer inspection of the statistical results provided the study not only with the best combination of factors for the MALDI sample preparation, but also with a better understanding of the influence of the different factors, individua…

Solucions polimèriquesEthylenePolymersAnalytical chemistryDegradation kineticsBiochemistryThermo-mechanical degradationSample preparation procedureAnalytical ChemistryMatrix (chemical analysis)chemistry.chemical_compoundDegradationGlycolsMatrix assisted laser desorption ionization time of flight mass spectrometryPolyethylene terephthalateMechanismsCationizationSample preparationRecyclingMechanical recyclingSpectroscopyPriority journalchemistry.chemical_classificationDithranolSignal to noise ratioPolyethylene terephthalateHydrolysisMultiple processingPolymerPoly (ethylene terephthalate)Potential reactionsInjection cyclesMAQUINAS Y MOTORES TERMICOSInductively coupled plasmaSimulationEthersMatrix-assisted laser desorption/ionization time-of-flightQuality parametersDesign of ExperimentsGlycol unitsSample preparationArticleEthyleneEnvironmental ChemistryPolyethylene terephthalatesMALDI TOF MSSignal noise ratioMass spectrometryMatrixTermoplàsticsSignal to noiseTransesterificationDegradation mechanismMatrix-assisted laser desorption/ionizationStatistical design of experimentsTransesterificationchemistryChemical engineeringOligomersDesorptionEthylene glycolControlled studyProcess optimizationAnalytica chimica acta
researchProduct