ESSENTIAL OILS DELIVERY BY LIPID NANOPARTICLES AuthorC. Carbone, E.B. Souto, G. Puglisi Year2017 SourceICB-CNR SIROE LanguageEnglish Pages13 LUMiSizerLSEssential oils (EOs)food 9 more nutritionRosmarinus officinalisLavanda sumianOriganum hirtum and Thymus capitatusexperimental creaming valuesinstability phenomenapredictionextrapolationextrapolate the creaming at regular gravity More details EditionAbstract Giornata Formativa LocationCatania, 30 Giugno 2017 Internal reference1770 Open publication →
Estabilidade de emulsões na presença da biomassa da microalga Arthrospira platensis e do polímero hidroxipropil metilcelulose - Stability of emulsions using the biomass of Arthrospira platensis AuthorRobson Takeshi Shimada Year2017 SourceMaster's Dissertation LanguagePortuguese Pages1-85 ComplexationEmulsion stabilityHydroxypropyl methylcelluloseNatural emulsifier 12 more SpirulinaComplexaçãoEmulsionante naturalEstabilidade de emulsãoHidroxipropil metilceluloseLUMiReader PSALRPSAestabilidade coloidal das emulsoestransmitancia integradointegral transimissioncolloidal stability1446 More details LocationUniversidade de Sao Paulo, Instituto de Química, Brazil Internal reference1446 Open publication →
ESTRATÉGIA DE VETORIZAÇÃO POR NANOTECNOLOGIA DO ATIVO PERÓXIDO DE CARBAMIDA PARA CLAREAMENTO DENTAL AuthorFABIANA VIEIRA LIMA Year2017 SourceTese LanguagePortuguese Pages1-137 A formação de uma nanopartícula estável foi confirmada pelo analisador de dispersão LUMisizer®que apresentou baixo índice de instabilidade e perfil de transmissão de luz com ausência de sedimentação.LSpharmaceutical 3 more medicinewas confirmed by the dispersion analyzer LUMiSizer®which presented low instability index and light transmission profile considered stable under the analyzed conditions.estabilidade física das nanopartículas de PC More details LocationUniversidade Federal de Santa Catarina, Brazil Internal reference1715 Open publication →
ESTUDIO DE TECNICAS DE MEDICION DE DTC A TRAVÉS DE ADQUISICION DE IMÁGENES Y VELOCIDAD DE SEDIMENTACIÓN AuthorKelvyn Baruc Sánchez-Sánchez, Eusebio Bolaños-Reynoso Year2017 SourceMemorias del XXXVIII Encuentro Nacional de la AMIDIQ LanguageSpanish Pages1-7 LUMiReaderLUMiReader PSALRPSACristales de azúcar 4 more alimentosfoodvelocidad de sedimentación1635 More details EditionConference Paper LocationIxtapa-Zihuatanejo, Guerrero, México, 9 al 12 de Mayo de 2017 Internal reference1635 Open publication →
ESTUDO DA ESTABILIDADE E COMPORTAMENTO DE SUSPENSÕES AQUOSAS DE PÓDE ARDÓSIA PARA APLICAÇÃO EM PROCESSAMENTO CERÂMICO AuthorLuciana Boaventura Palhares Year2017 SourceTese de Doutorado LanguagePortuguese Pages1-245 ceramicsLUMiSizerLScompression 55 more 1893Sedimentação por centrifugaçãoAvaliação do comportamento sob aplicação de tensão compressivaArdósia PuraAbstract from thesis: Organic reagents interactions with oxide surfaces are important in ceramic processing of fine particles such as in the slip casting process. The additives added have the objective of forces control between the particles to promote the stability. The stabilization mechanism efficiency results in a dispersion condition that reflects on the rheological behavior and sedimentation improving the properties pieces produces by slip casting process. In the present work were used the slate waste generated by the extraction and beneficiation stages of the rock in Minas Gerais State (Brazil). The waste was characterized by microstructure showing heterogeneous particles in shape and size: isotropicelongated and lamellar. The particle sizes distributions showed a significant percentage of particles with diameter between 0.5 to 25 μm by the laser diffraction technique as well as the automated image analysis. The X-ray diffractometry indicated the presence of quartzmuscovitechlinoclorecalcite and feldspars. The chemical analyses showed the high presence of SiO2 and Al2O3 and these two oxides are the major constituents of quartz and silica-alumina mineralssuch as muscovite and chlinochlore. The suspension was prepared by mixing the slate powder and water followed by magnetic stirring for 24 hours in order to homogenize the suspension with four different dispersants concentrations and six different solid percentages. The slate suspensions presented a complex behavior due to the many minerals founded in its constitution. The suspensions properties were analysed by: particle sizezeta potentialviscosity and gravity and centrifugal sedimentation. It was observed that increasing the solids percentage the formation of agglomerates (~100 μm) occurred including the samples with pure slate. When dispersantscitric acidpoly (ammonium acrylate) and sodium poly (methacrylate) and poly (diallyldimethylammonium chloride) were addeddifferent particle size distributions was verified. For suspensions with citric acid and poly (acrylate) ammonium was observed bimodal curves and to sodium poly (methacrylate) and poly (dialyldimethylammonium chloride) - (PDADMACDMAC) dispersantseither individually or in combinationmonomodal curves with slightly deflection to the right comparing to slate pure suspensions with peaks ranging from 6 and 8.5m. The zeta potential values obtained for all suspensions were generally negative for the pH ranges evaluated. The values obtained for the suspensions with the PMANa and PDADMAC dispersants suggest a dominance of negative surface charge except to pH below 4. In the gravity sedimentation and centrifugation tests was evidenced that increasing the solids fraction the sedimentation rate decrease due the hindered settling effect. This phenomenon is present in concentrated suspensions where large interactions occur between the particles and the sedimentation is delayed by neighbour particles. Regarding the rheological behaviorthe slate suspensions exhibited a pseudoplastic behavior with viscosity increasing as a function of the percentage of solids in the suspensions. In the cases studiedthe addition of different dispersants slightly affected this behaviorwith lower viscosities obtained for poly (ammonium acrylate) and poly (sodium methacrylate) dispersants. The results obtained by centrifugal compression showed that the suspensions containing the dispersants poly (sodium methacrylate) and poly (diallyldimethylammonium chloride)presented sediments with a higher capacity of compression despite the presence of aggregates. The highest voluminous and open sediments were obtained using the PDADMAC dispersanta result consistent with the higher viscosity data. The yield stress values of suspensions were lowest to pure slate than the dispersant suspensions showing lower forces between the particles and consequently the lower viscosity data obtained. The results showed the complex behavior of the slate powder and the difficulty to obtain stabilized suspensions without agglomerates and sedimentation of particles. Neverthelessthe slate powder can be used in ceramic processing. Resumo: Interações de reagentes orgânicos com superfícies de óxidos são importantes no processamento cerâmico de partículas finascomo por exemploo processo de colagem de barbotinas (“slip casting”). Os aditivos adicionados têm como objetivo principal o controle das forças entre as partículas na suspensão visando sua estabilidade. A eficiência do mecanismo de estabilização resulta em uma condição de dispersão que reflete em aspectos de comportamento reológico e de sedimentação associados ao sistema econsequentementenas propriedades das peças produzidas. No presente trabalho utilizou-se o resíduo de pó de ardósia gerado nas etapas de extração e beneficiamento pelas mineradoras no Estado de Minas Gerais - Brasil. O resíduo foi caracterizado quanto a microestrutura evidenciando a heterogeneidade de forma e tamanhomostrando partículas de formato isotrópicode folhas e lamelares. Os tamanhos de partículas encontrados no rejeito foram da ordem de 05 até 25μm tanto pela técnica de difração a laser quanto pelas análises de imagens automatizadas. A difração de raios X mostrou a presença dos principais minerais constituintes dessa rocha: quartzomoscovitaclinoclorocalcita e feldspatos. As análises químicas mostraram a presença de óxidos de silício e alumínio em maiores quantidades devido a presença de quartzo e minerais sílico-aluminososcomo moscovita e clinocloro. As suspensões de ardósia produzidascom diferentes porcentagens de sólidos e dispersantesapresentaram complexo comportamento em função da variada mineralogia tendo suas propriedades analisadas por: tamanho de partículaspotencial zetaviscosidade e sedimentação. Foi observado que com o aumento da porcentagem de sólidos ocorreu a formação de aglomerados (~100m) incluindo as amostras com ardósia pura. Quando os dispersantesácido cítricopoli(acrilato de amônio) e poli(metacrilato) de sódio e poli(cloreto de dialildimetilamônio) foram adicionadosresultados diferentes foram obtidos em função das características específicas dos mesmos. As distribuições de tamanho de partículas para as suspensões com ácido cítrico e poli(acrilato) de amônio mostraram curvas bimodais com um pico na região submicrométrica e outro na região de maior tamanho de partículas indicando a presença de aglomerados. A adição dos dispersantes ácido poli(metacrilato) de sódio (PMANa) e poli(cloreto de dialildimetilamônio) – (PDADMACDMAC)tanto individualmente ou combinadosafetaram ligeiramente as curvas de distribuição de tamanho de partículas das suspensões que apresentam-se monomodais com picos variando de 6 e 85m. Em relação a ardósia pura verificou-se o aumento do número de aglomerados com deslocamento das curvas para esquerda do eixo das abcissas. Os valores de potencial zeta obtidos para todas as suspensões foramem geralnegativos para as faixas de pH avaliadas. Os valores obtidos para as suspensões com os dispersantes PMANa e PDADMAC isoladamente sugerem dominância das cargas superficiais das partículas da ardósia em valores específicos de pHcarga positiva abaixo de pH 4 e carga negativa acima de pH 11. Nos testes de sedimentação por gravidade e centrifugação para todas as suspensõesficou evidenciado que quando a fração volumétrica de sólidos em água foi aumentadaa taxa de sedimentação diminuiu devido ao efeito de impedimento (“hindered settling”). Fenômeno frequente em suspensões concentradas onde ocorre grandes interações entre as partículas e a sedimentação é atrasada pelas partículas vizinhas. Em relação ao comportamento reológicoas suspensões de ardósia exibiram comportamento pseudoplástico com aumento da viscosidade em função da porcentagem de sólidos nas suspensões. Nos casos estudadosa adição de diferentes dispersantes afetou ligeiramente esse comportamento sendo menores viscosidades obtidas para os dispersantes poli(acrilato de amônio) e poli(metacrilato de sódio). Os resultados obtidos para suspensões sob compressão por centrifugação mostraram que nas suspensões contendo os dispersantes poli(metacrilato de sódio) e poli(cloreto de dialildimetilamônio)os sedimentos apresentaram maior capacidade de compressãomas com a presença de agregados de partículas. O dispersante PDADMAC quando utilizado isoladamente apresentou sedimentos mais volumosos e abertosresultado consistente com os dados mais elevados de viscosidade. O limite de escoamento das suspensões foi menor para as suspensões de ardósia pura do que os valores das suspensões com dispersante evidenciando menores forças de ligação entre as partículas e os menores valores de viscosidade obtidos. Os resultados mostraram o complexo comportamento do pó de ardósia e a dificuldade de manter a suspensão estabilizada sem a formação de aglomerados e sedimentação de partículas não impedindo totalmentesua utilização em processamento cerâmico. More details LocationUniversidade Federal de Ouro Preto, Brazil Internal reference1893 Open publication →
Evaluation of a chloroaluminium phthalocyanine- loaded magnetic nanoemulsion as a drug delivery device to treat glioblastoma using hyperthermia and photodynamic therapy AuthorL. B. de Paula, F. L. Primo, M. R. Pinto, P. C. Morais and A. C. Tedesco Year2017 SourceRSC Adv. LanguageEnglish Pages9115 – 912 production of magnetic nanoemulsions (MNEs) loaded with citrate-coated maghemite nanoparticles and chloroaluminum-phthalocyanineLUMiSIzerLSpharmaceutical 3 more brain cancer interventionsuch as glioblastomatransmission profiles of empty formulations of NE/ClAlPc More details Edition7 Internal reference1653 Open publication →
Evaluation of a rapid haze stability measurement for beer AuthorKevin van Koerten, Catrienus de Jong, Hans Tromp Year2017 Source36th Congress European Brewery Convention LanguageEnglish Pages1 RAPID SCREENING OF PROCESS EFFECTS ON BEER QUALITY: HAZE STABILITYLUMiFuge data of transmission (470nm)LFLUMiSizer 7 more LSFoodnutritionbeverageNIZO food research B.V.drinksspecial beers More details EditionPoster Abstract 018 LocationLjubljana, Slovenia, 14-18 May 2017 Internal reference1426 Open publication →
Evaluation of analytical centrifugation performance for the particle size analysis of real-world materials AuthorC. Ullmann, I. Rio, D. Mehn, D. Gilliland, W. Wohlleben, R. Koeber, F. Babick Year2017 SourceInternational Conference & Workshop Dispersion Analysis & Materials Testing 2018 LanguageEnglish Pages1-3 1498LUMiSizer; LSAnalytical CentrifugationIntermediate Precision 12 more Particle SizeNanomaterialDefinitionpsapsdtri-modal polystyrene suspensionSuspensions of the two grades of BaSO4 were prepared by suspending powder in sodium hexametaphosphate solutionparticle size distributionparticle size analysisysaysa2018lumysa More details EditionNominated for LUM Young Scientist Award 2018 LocationBerlin, Germany, 29-30 January 2018 Internal reference1498 Open publication →
Evaluation of particle sizing by analytical centrifugation using real - world materials for the implementation of the EC definition of the term “nanomaterial” AuthorC. Ullmann , I. Rio, D . Mehn , D. Gilliland, W. Wohlleben, R. Koeber, F. Babick Year2017 SourceProceedings of the Nanotech France 2017 International Conference LanguageEnglish Pages1-6 analytical centrifugationevaluationintermediate precisionnanomaterial detection 9 more particle sizeLUMiSizerLSpsapsdparticle size distribution analysisACtri-modal polystyrene mixture and non-spherical BaSO4 materials in the nano and sub-micrometre size rangeNanoDefine More details LocationParis, France – June 28 – 30, 2017 Internal reference1699 Open publication →
Evaluation of Physicochemical and Glycaemic Properties of Commercial Plant-Based Milk Substitutes AuthorStephanie Jeske, Emanuele Zannini, Elke K. Arendt Year2017 SourcePlant Foods for Human Nutrition LanguageEnglish Pages26–33 LUMiSizerfoodnutritiondairy 8 more Plant-based milk substitutesProtein requirementGlycaemic indexDispersion stabilityLSphase separation analysisanalytical centrifuge1350 More details Edition72, Issue 1 Internal reference1350 Open publication →
EVALUATION OF THE INFLUENCE OF A VARYING MOLAR RATIO OF SODIUM DODECYL SULFATE TO WHEY PROTEIN ISOLATE ON THE STABILITY OF THE WHEY PROTEIN EMULSIONS AuthorTran Le Thu, Nguyen Thi Ngoc Hoi Year2017 SourceVietnam Journal of Science and Technology LanguageEnglish Pages26-33 Lumifuge centrifugationSDSwhey protein emulsionand zeta potential apparatus 5 more LUMiFugeLFLUMiSizerLSinfluence of a varying molar ratio of Sodium Dodecyl Sulfate (SDS) to Whey Protein Isolate (WPI) on the stability of the whey protein emulsions More details Edition55 (5B) Internal reference1586 Open publication →
Exopolysaccharides in fermented dairy products: Effects on sedimentation behaviour during manufacture and storage AuthorGeorg Surber, Carsten Nachtigall, Doris Jaros, Harald Rohm Year2017 SourceInternational Conference & Workshop Dispersion Analysis & Materials Testing 2018 LanguageEnglish Pages1-3 1497LUMiSizer; LSexopolysaccharidewhey separation 9 more syneresisyoghurtfresh cheesefoodnutritionmilkysalumysaysa2018 More details EditionNominated for LUM Young Scientist Award 2018 LocationBerlin, Germany, 29-30 January 2018 Internal reference1497 Open publication →
Experimental evaluation of effect of continuous phase rheology on sedimentation behaviour AuthorT. Sobisch, D. Lerche Year2017 SourceDispersion Letters LanguageEnglish Pages17-26 1525LUMiSizerLSLUMiReader PSA 19 more LRPSALUMiReader X-RayLRXcontinuous phase rheologynon-Newtonian liquidsvelocity distributiongravity settlingapparent viscositypectinpolyether imide (PEI)rutile and ‘monosized’ silicaTiO2Pectin AmidVolume weighted size distributionspsapsdSedimentation kinetics as function of solids content of PEIVelocity – RCA dependenceSedimentation kinetics More details Edition8 LocationISBN: 978-3-944261-68-3 Internal reference1525 Open publication →
Fabrication and characterization of porous ceramic filters with impregnated silver nanoparticles for water purification AuthorTatiane de Mattos Amadio Year2017 SourceThesis LanguageEnglish Pages1-185 LUMiSizerLS1852dispersion stability 16 more powders used as raw materials for the filter were aluminaceramicsPhysical properties and chemical composition of alumina C and alumina FAverage particle size -LumisizerAlpsapsdparticle size distributionOne of the most efficient technologiesfor water purificationis the useof ceramic filters. In this worktwo raw materialsalumina and/or kaoliniteand two shaping techniquesrespectivelypressing (with or without porogenic agents) or freezecastingwere considered for manufacturing ceramic filters. More details LocationFederal University of Santa Catarina (UFSC), Graduate Program in Materials Science and Engineering (PGMAT), Brazil Internal reference1852 Open publication →
Fate of edible solid lipid nanoparticles (SLN) in surfactant stabilized o/w emulsions. Part 1: Interplay of SLN and oil droplets AuthorJohanna Milsmann, Kathleen Oehlke, Katrin Schrader, RalfGreiner, Anja Steffen-Heins Year2017 SourceColloids and Surfaces A: Physicochemical and Engineering Aspects LanguageEnglish foodnutritionLUMiSizerLS 7 more Solid lipid nanoparticleso/w emulsionsSurfactant mixturesMass transferDifferential scanning calorimetryZeta potentialemulsions in the presence and absence of SLN was studied under accelerated conditions with an analytical centrifuge More details EditionIn Press, Corrected Proof Locationhttps://doi.org/10.1016/j.colsurfa.2017.05.073 Internal reference1460 Open publication →
Formation and characterization of the binary complex between zein and propylene glycol alginate at neutral pH AuthorCuixia Sun, Lei Dai, Yanxiang Gao Year2017 SourceFood Hydrocolloids LanguageEnglish Pages36–47 LUMiSizerLSZein; Propylene glycol alginate; Non-covalent interaction; Binary complex; Mechanismphysical stability 1 more colloidal dispersions More details Edition64 Internal reference1323 Open publication →
Formation of Mefenamic Acid Nanocrystals with Improved Dissolution Characteristics AuthorChristoph Konnerth, Veronika Braig, Atsutoshi Ito, Jochen Schmidt, Geoffrey Lee, Wolfgang Peukert Year2017 SourceChemie Ingenieur Technik LanguageEnglish LUMiSizerLSDissolution rate enhancementMedia milling 8 more NanocrystalPolymorphismPoorly water‐soluble drugSpray dryingPharmaceuticalParticle Size Analysisanalytical centrifugation (AC)mefenamic acid (MA) More details EditionVolume 89, Issue8 Special Issue: Pharmazeutische Verfahrenstechnik Internal reference1579 Open publication →
Formulation and Stability Characterization of Rutin-Loaded Oil-in-Water Emulsions AuthorIlyes Dammak & Paulo José do Amaral Sobral Year2017 SourceFood Bioprocess Technol LanguageEnglish Pages1-15 RutinO/W emulsionMicrofluidizationStability 9 more Creamingstability of rutin emulsionsLUMiSizerLScreaming indexphase separation velocityformulation and characterization of oil-in-water (O/W) emulsions loaded with rutinRutin is a flavonoid belonging to the subclass of flavones found in various plant sourcesand its antioxidant potential More details Editiondoi:10.1007/s11947-017-1876-5 Internal reference1390 Open publication →
Gadolinium-Loaded Poly(N-vinylcaprolactam) Nanogels: Synthesis, Characterization, and Application for Enhanced Tumor MR Imaging AuthorWenjie Sun, Sabrina Thies, Jiulong Zhang, Chen Peng, Guangyu Tang, Mingwu Shen, Andrij Pich, and Xiangyang Shi Year2017 SourceACS Appl. Mater. Interfaces LanguageEnglish Pages3411–3418 Gd-DOTA; MR imaging; nanogels; poly(N-vinylcaprolactam); tumorsLUMiSizerLSdispersion stabilities of the PVCL NGs with or without Gd-loading 2 more sedimentation velocitiesvelocity More details Edition9 (4) Internal reference1373 Open publication →
Gezielte Haftvermittler-Entwicklung AuthorKunststoff-Profi Verlag GmbH & Co. KG Year2017 SourceK-PROFI – Impulse für Kunststoffverarbeiter LanguageGerman Pages36 LUMiFracLFracTramacoTrapylen 4 more TrapurHaftvermittlerHaftungsprüfungKunststoffverarbeitung More details EditionAusgabe 3-4/2017 LocationBad Homburg Internal reference1529 Open publication →
