Search results for " Organic solvents"

showing 2 items of 2 documents

Species- and site-specific efficacy of commercial biocides and application solvents against lichens

2017

Abstract Control of lichens on stone cultural heritage is mostly achieved by a combination of mechanical removal with biocide applications. However, there is a lack of scientific evidence on the efficacy of different biocides on different species, and on the consistency of biocide effects on heritage sites in different environmental conditions. This results in some uncertainty when conservation interventions to control lichens are routinely defined on the basis of restoration tradition or empirical evaluation, without experimental measures of how lichens respond. In this work, we quantitatively evaluated (a) the efficacy of five commercially-available biocides, applied using a brush or with…

0301 basic medicineBiocideBiocide; Chlorophyll a fluorescence; Ergosterol; Lichen; Organic solvents; Microbiology; Biomaterials; Waste Management and DisposalBiocide030106 microbiologyLichenVerrucaria nigrescens010501 environmental sciencesBiologyVitalityProtoparmeliopsis muralis01 natural sciencesMicrobiologyBiomaterials03 medical and health sciencesErgosterolChlorophyll a fluorescenceBotanyLichenWaste Management and Disposal0105 earth and related environmental sciencesBiocide Chlorophyll fluorescence Ergosterol Lichen Organic solventsPoulticeOrganic solventsEnvironmental chemistryChlorophyll fluorescenceBiocide Chlorophyll a fluorescence Ergosterol Lichen Organic solventsInternational Biodeterioration & Biodegradation
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Synergistic assembly of hyperbranched polyethylenimine and fatty acids leading to unusual supramolecular nanocapsules

2005

Self-assembly of hyperbranched polyethylenimine (PEI) and fatty acids leads to supramolecular inverted micellar structures that are able to irreversibly transfer water-soluble guest molecules into organic solvents. Perez Prieto, Julia, Julia.Perez@uv.es ; Stiriba, Salah Eddine, Salah.Stiriba@uv.es

Macromolecular SubstancesUNESCO::QUÍMICAAssemblyAssembly ; Hiperbranched polyethylenimine ; Spramolecular ; Water-soluble ; Organic solventsSupramolecular chemistrymacromolecular substances:QUÍMICA [UNESCO]CatalysisNanocapsuleschemistry.chemical_compoundPolymer chemistryMaterials ChemistryPolyethyleneimineMoleculeSpramolecularPolyethylenimineNanotubesMolecular StructureFatty Acidstechnology industry and agricultureMetals and AlloysWaterWater-solubleGeneral ChemistryUNESCO::QUÍMICA::Química macromolecularHiperbranched polyethylenimineSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsOrganic solventsModels ChemicalchemistrySolventsCeramics and Composites:QUÍMICA::Química macromolecular [UNESCO]lipids (amino acids peptides and proteins)Chem. Commun.
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