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3140 Ergebnisse

ESSENTIAL OILS DELIVERY BY LIPID NANOPARTICLES

Autor
C. Carbone, E.B. Souto, G. Puglisi
Jahr
2017
Quelle
ICB-CNR SIROE
Sprache
English
Seiten
13
  • LUMiSizer
  • LS
  • Essential oils (EOs)
  • food
9 weitere
  • nutrition
  • Rosmarinus officinalis
  • Lavanda sumian
  • Origanum hirtum and Thymus capitatus
  • experimental creaming values
  • instability phenomena
  • prediction
  • extrapolation
  • extrapolate the creaming at regular gravity
Weitere Details
Ausgabe
Abstract Giornata Formativa
Ort
Catania, 30 Giugno 2017
Interne Referenz
1770
Veröffentlichung öffnen

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

Autor
Robson Takeshi Shimada
Jahr
2017
Quelle
Master's Dissertation
Sprache
Portuguese
Seiten
1-85
  • Complexation
  • Emulsion stability
  • Hydroxypropyl methylcellulose
  • Natural emulsifier
12 weitere
  • Spirulina
  • Complexação
  • Emulsionante natural
  • Estabilidade de emulsão
  • Hidroxipropil metilcelulose
  • LUMiReader PSA
  • LRPSA
  • estabilidade coloidal das emulsoes
  • transmitancia integrado
  • integral transimission
  • colloidal stability
  • 1446
Weitere Details
Ort
Universidade de Sao Paulo, Instituto de Química, Brazil
Interne Referenz
1446
Veröffentlichung öffnen

ESTRATÉGIA DE VETORIZAÇÃO POR NANOTECNOLOGIA DO ATIVO PERÓXIDO DE CARBAMIDA PARA CLAREAMENTO DENTAL

Autor
FABIANA VIEIRA LIMA
Jahr
2017
Quelle
Tese
Sprache
Portuguese
Seiten
1-137
  • 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.
  • LS
  • pharmaceutical
3 weitere
  • medicine
  • was 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
Weitere Details
Ort
Universidade Federal de Santa Catarina, Brazil
Interne Referenz
1715
Veröffentlichung öffnen

ESTUDIO DE TECNICAS DE MEDICION DE DTC A TRAVÉS DE ADQUISICION DE IMÁGENES Y VELOCIDAD DE SEDIMENTACIÓN

Autor
Kelvyn Baruc Sánchez-Sánchez, Eusebio Bolaños-Reynoso
Jahr
2017
Quelle
Memorias del XXXVIII Encuentro Nacional de la AMIDIQ
Sprache
Spanish
Seiten
1-7
  • LUMiReader
  • LUMiReader PSA
  • LRPSA
  • Cristales de azúcar
4 weitere
  • alimentos
  • food
  • velocidad de sedimentación
  • 1635
Weitere Details
Ausgabe
Conference Paper
Ort
Ixtapa-Zihuatanejo, Guerrero, México, 9 al 12 de Mayo de 2017
Interne Referenz
1635
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ESTUDO DA ESTABILIDADE E COMPORTAMENTO DE SUSPENSÕES AQUOSAS DE PÓDE ARDÓSIA PARA APLICAÇÃO EM PROCESSAMENTO CERÂMICO

Autor
Luciana Boaventura Palhares
Jahr
2017
Quelle
Tese de Doutorado
Sprache
Portuguese
Seiten
1-245
  • ceramics
  • LUMiSizer
  • LS
  • compression
55 weitere
  • 1893
  • Sedimentação por centrifugação
  • Avaliação do comportamento sob aplicação de tensão compressiva
  • Ardósia Pura
  • Abstract 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: isotropic
  • elongated 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 quartz
  • muscovite
  • chlinoclore
  • calcite 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 minerals
  • such 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 size
  • zeta potential
  • viscosity 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 dispersants
  • citric acid
  • poly (ammonium acrylate) and sodium poly (methacrylate) and poly (diallyldimethylammonium chloride) were added
  • different 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) dispersants
  • either individually or in combination
  • monomodal curves with slightly deflection to the right comparing to slate pure suspensions with peaks ranging from 6 and 8.5m. 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 behavior
  • the slate suspensions exhibited a pseudoplastic behavior with viscosity increasing as a function of the percentage of solids in the suspensions. In the cases studied
  • the addition of different dispersants slightly affected this behavior
  • with 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 dispersant
  • a 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. Nevertheless
  • the slate powder can be used in ceramic processing. Resumo: Interações de reagentes orgânicos com superfícies de óxidos são importantes no processamento cerâmico de partículas finas
  • como por exemplo
  • o 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 e
  • consequentemente
  • nas 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 tamanho
  • mostrando partículas de formato isotrópico
  • de folhas e lamelares. Os tamanhos de partículas encontrados no rejeito foram da ordem de 0
  • 5 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: quartzo
  • moscovita
  • clinocloro
  • calcita 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-aluminosos
  • como moscovita e clinocloro. As suspensões de ardósia produzidas
  • com diferentes porcentagens de sólidos e dispersantes
  • apresentaram complexo comportamento em função da variada mineralogia tendo suas propriedades analisadas por: tamanho de partículas
  • potencial zeta
  • viscosidade e sedimentação. Foi observado que com o aumento da porcentagem de sólidos ocorreu a formação de aglomerados (~100m) incluindo as amostras com ardósia pura. Quando os dispersantes
  • ácido cítrico
  • poli(acrilato de amônio) e poli(metacrilato) de sódio e poli(cloreto de dialildimetilamônio) foram adicionados
  • resultados 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 combinados
  • afetaram ligeiramente as curvas de distribuição de tamanho de partículas das suspensões que apresentam-se monomodais com picos variando de 6 e 8
  • 5m. 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 foram
  • em geral
  • negativos 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 pH
  • carga positiva abaixo de pH 4 e carga negativa acima de pH 11. Nos testes de sedimentação por gravidade e centrifugação para todas as suspensões
  • ficou evidenciado que quando a fração volumétrica de sólidos em água foi aumentada
  • a 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 reológico
  • as suspensões de ardósia exibiram comportamento pseudoplástico com aumento da viscosidade em função da porcentagem de sólidos nas suspensões. Nos casos estudados
  • a 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 compressão
  • mas com a presença de agregados de partículas. O dispersante PDADMAC quando utilizado isoladamente apresentou sedimentos mais volumosos e abertos
  • resultado 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 totalmente
  • sua utilização em processamento cerâmico.
Weitere Details
Ort
Universidade Federal de Ouro Preto, Brazil
Interne Referenz
1893
Veröffentlichung öffnen

Evaluation of a chloroaluminium phthalocyanine- loaded magnetic nanoemulsion as a drug delivery device to treat glioblastoma using hyperthermia and photodynamic therapy

Autor
L. B. de Paula, F. L. Primo, M. R. Pinto, P. C. Morais and A. C. Tedesco
Jahr
2017
Quelle
RSC Adv.
Sprache
English
Seiten
9115 – 912
  • production of magnetic nanoemulsions (MNEs) loaded with citrate-coated maghemite nanoparticles and chloroaluminum-phthalocyanine
  • LUMiSIzer
  • LS
  • pharmaceutical
3 weitere
  • brain cancer intervention
  • such as glioblastoma
  • transmission profiles of empty formulations of NE/ClAlPc
Weitere Details
Ausgabe
7
Interne Referenz
1653
Veröffentlichung öffnen

Evaluation of a rapid haze stability measurement for beer

Autor
Kevin van Koerten, Catrienus de Jong, Hans Tromp
Jahr
2017
Quelle
36th Congress European Brewery Convention
Sprache
English
Seiten
1
  • RAPID SCREENING OF PROCESS EFFECTS ON BEER QUALITY: HAZE STABILITY
  • LUMiFuge data of transmission (470nm)
  • LF
  • LUMiSizer
7 weitere
  • LS
  • Food
  • nutrition
  • beverage
  • NIZO food research B.V.
  • drinks
  • special beers
Weitere Details
Ausgabe
Poster Abstract 018
Ort
Ljubljana, Slovenia, 14-18 May 2017
Interne Referenz
1426
Veröffentlichung öffnen

Evaluation of analytical centrifugation performance for the particle size analysis of real-world materials

Autor
C. Ullmann, I. Rio, D. Mehn, D. Gilliland, W. Wohlleben, R. Koeber, F. Babick
Jahr
2017
Quelle
International Conference & Workshop Dispersion Analysis & Materials Testing 2018
Sprache
English
Seiten
1-3
  • 1498
  • LUMiSizer; LS
  • Analytical Centrifugation
  • Intermediate Precision
12 weitere
  • Particle Size
  • Nanomaterial
  • Definition
  • psa
  • psd
  • tri-modal polystyrene suspension
  • Suspensions of the two grades of BaSO4 were prepared by suspending powder in sodium hexametaphosphate solution
  • particle size distribution
  • particle size analysis
  • ysa
  • ysa2018
  • lumysa
Weitere Details
Ausgabe
Nominated for LUM Young Scientist Award 2018
Ort
Berlin, Germany, 29-30 January 2018
Interne Referenz
1498
Veröffentlichung öffnen

Evaluation of particle sizing by analytical centrifugation using real - world materials for the implementation of the EC definition of the term “nanomaterial”

Autor
C. Ullmann , I. Rio, D . Mehn , D. Gilliland, W. Wohlleben, R. Koeber, F. Babick
Jahr
2017
Quelle
Proceedings of the Nanotech France 2017 International Conference
Sprache
English
Seiten
1-6
  • analytical centrifugation
  • evaluation
  • intermediate precision
  • nanomaterial detection
9 weitere
  • particle size
  • LUMiSizer
  • LS
  • psa
  • psd
  • particle size distribution analysis
  • AC
  • tri-modal polystyrene mixture and non-spherical BaSO4 materials in the nano and sub-micrometre size range
  • NanoDefine
Weitere Details
Ort
Paris, France – June 28 – 30, 2017
Interne Referenz
1699
Veröffentlichung öffnen

Evaluation of Physicochemical and Glycaemic Properties of Commercial Plant-Based Milk Substitutes

Autor
Stephanie Jeske, Emanuele Zannini, Elke K. Arendt
Jahr
2017
Quelle
Plant Foods for Human Nutrition
Sprache
English
Seiten
26–33
  • LUMiSizer
  • food
  • nutrition
  • dairy
8 weitere
  • Plant-based milk substitutes
  • Protein requirement
  • Glycaemic index
  • Dispersion stability
  • LS
  • phase separation analysis
  • analytical centrifuge
  • 1350
Weitere Details
Ausgabe
72, Issue 1
Interne Referenz
1350
Veröffentlichung öffnen

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

Autor
Tran Le Thu, Nguyen Thi Ngoc Hoi
Jahr
2017
Quelle
Vietnam Journal of Science and Technology
Sprache
English
Seiten
26-33
  • Lumifuge centrifugation
  • SDS
  • whey protein emulsion
  • and zeta potential apparatus
5 weitere
  • LUMiFuge
  • LF
  • LUMiSizer
  • LS
  • influence of a varying molar ratio of Sodium Dodecyl Sulfate (SDS) to Whey Protein Isolate (WPI) on the stability of the whey protein emulsions
Weitere Details
Ausgabe
55 (5B)
Interne Referenz
1586
Veröffentlichung öffnen

Exopolysaccharides in fermented dairy products: Effects on sedimentation behaviour during manufacture and storage

Autor
Georg Surber, Carsten Nachtigall, Doris Jaros, Harald Rohm
Jahr
2017
Quelle
International Conference & Workshop Dispersion Analysis & Materials Testing 2018
Sprache
English
Seiten
1-3
  • 1497
  • LUMiSizer; LS
  • exopolysaccharide
  • whey separation
9 weitere
  • syneresis
  • yoghurt
  • fresh cheese
  • food
  • nutrition
  • milk
  • ysa
  • lumysa
  • ysa2018
Weitere Details
Ausgabe
Nominated for LUM Young Scientist Award 2018
Ort
Berlin, Germany, 29-30 January 2018
Interne Referenz
1497
Veröffentlichung öffnen

Experimental evaluation of effect of continuous phase rheology on sedimentation behaviour

Autor
T. Sobisch, D. Lerche
Jahr
2017
Quelle
Dispersion Letters
Sprache
English
Seiten
17-26
  • 1525
  • LUMiSizer
  • LS
  • LUMiReader PSA
19 weitere
  • LRPSA
  • LUMiReader X-Ray
  • LRX
  • continuous phase rheology
  • non-Newtonian liquids
  • velocity distribution
  • gravity settling
  • apparent viscosity
  • pectin
  • polyether imide (PEI)
  • rutile and ‘monosized’ silica
  • TiO2
  • Pectin Amid
  • Volume weighted size distributions
  • psa
  • psd
  • Sedimentation kinetics as function of solids content of PEI
  • Velocity – RCA dependence
  • Sedimentation kinetics
Weitere Details
Ausgabe
8
Ort
ISBN: 978-3-944261-68-3
Interne Referenz
1525
Veröffentlichung öffnen

Fabrication and characterization of porous ceramic filters with impregnated silver nanoparticles for water purification

Autor
Tatiane de Mattos Amadio
Jahr
2017
Quelle
Thesis
Sprache
English
Seiten
1-185
  • LUMiSizer
  • LS
  • 1852
  • dispersion stability
16 weitere
  • powders used as raw materials for the filter were alumina
  • ceramics
  • Physical properties and chemical composition of alumina C and alumina F
  • Average particle size -Lumisizer
  • Al
  • psa
  • psd
  • particle size distribution
  • One of the most efficient technologies
  • for water purification
  • is the useof ceramic filters. In this work
  • two raw materials
  • alumina and/or kaolinite
  • and two shaping techniques
  • respectively
  • pressing (with or without porogenic agents) or freezecastingwere considered for manufacturing ceramic filters.
Weitere Details
Ort
Federal University of Santa Catarina (UFSC), Graduate Program in Materials Science and Engineering (PGMAT), Brazil
Interne Referenz
1852
Veröffentlichung öffnen

Fate of edible solid lipid nanoparticles (SLN) in surfactant stabilized o/w emulsions. Part 1: Interplay of SLN and oil droplets

Autor
Johanna Milsmann, Kathleen Oehlke, Katrin Schrader, RalfGreiner, Anja Steffen-Heins
Jahr
2017
Quelle
Colloids and Surfaces A: Physicochemical and Engineering Aspects
Sprache
English
  • food
  • nutrition
  • LUMiSizer
  • LS
7 weitere
  • Solid lipid nanoparticles
  • o/w emulsions
  • Surfactant mixtures
  • Mass transfer
  • Differential scanning calorimetry
  • Zeta potential
  • emulsions in the presence and absence of SLN was studied under accelerated conditions with an analytical centrifuge
Weitere Details
Ausgabe
In Press, Corrected Proof
Ort
https://doi.org/10.1016/j.colsurfa.2017.05.073
Interne Referenz
1460
Veröffentlichung öffnen

Formation and characterization of the binary complex between zein and propylene glycol alginate at neutral pH

Autor
Cuixia Sun, Lei Dai, Yanxiang Gao
Jahr
2017
Quelle
Food Hydrocolloids
Sprache
English
Seiten
36–47
  • LUMiSizer
  • LS
  • Zein; Propylene glycol alginate; Non-covalent interaction; Binary complex; Mechanism
  • physical stability
1 weitere
  • colloidal dispersions
Weitere Details
Ausgabe
64
Interne Referenz
1323
Veröffentlichung öffnen

Formation of Mefenamic Acid Nanocrystals with Improved Dissolution Characteristics

Autor
Christoph Konnerth, Veronika Braig, Atsutoshi Ito, Jochen Schmidt, Geoffrey Lee, Wolfgang Peukert
Jahr
2017
Quelle
Chemie Ingenieur Technik
Sprache
English
  • LUMiSizer
  • LS
  • Dissolution rate enhancement
  • Media milling
8 weitere
  • Nanocrystal
  • Polymorphism
  • Poorly water‐soluble drug
  • Spray drying
  • Pharmaceutical
  • Particle Size Analysis
  • analytical centrifugation (AC)
  • mefenamic acid (MA)
Weitere Details
Ausgabe
Volume 89, Issue8 Special Issue: Pharmazeutische Verfahrenstechnik
Interne Referenz
1579
Veröffentlichung öffnen

Formulation and Stability Characterization of Rutin-Loaded Oil-in-Water Emulsions

Autor
Ilyes Dammak & Paulo José do Amaral Sobral
Jahr
2017
Quelle
Food Bioprocess Technol
Sprache
English
Seiten
1-15
  • Rutin
  • O/W emulsion
  • Microfluidization
  • Stability
9 weitere
  • Creaming
  • stability of rutin emulsions
  • LUMiSizer
  • LS
  • creaming index
  • phase separation velocity
  • formulation and characterization of oil-in-water (O/W) emulsions loaded with rutin
  • Rutin is a flavonoid belonging to the subclass of flavones found in various plant sources
  • and its antioxidant potential
Weitere Details
Ausgabe
doi:10.1007/s11947-017-1876-5
Interne Referenz
1390
Veröffentlichung öffnen

Gadolinium-Loaded Poly(N-vinylcaprolactam) Nanogels: Synthesis, Characterization, and Application for Enhanced Tumor MR Imaging

Autor
Wenjie Sun, Sabrina Thies, Jiulong Zhang, Chen Peng, Guangyu Tang, Mingwu Shen, Andrij Pich, and Xiangyang Shi
Jahr
2017
Quelle
ACS Appl. Mater. Interfaces
Sprache
English
Seiten
3411–3418
  • Gd-DOTA; MR imaging; nanogels; poly(N-vinylcaprolactam); tumors
  • LUMiSizer
  • LS
  • dispersion stabilities of the PVCL NGs with or without Gd-loading
2 weitere
  • sedimentation velocities
  • velocity
Weitere Details
Ausgabe
9 (4)
Interne Referenz
1373
Veröffentlichung öffnen

Gezielte Haftvermittler-Entwicklung

Autor
Kunststoff-Profi Verlag GmbH & Co. KG
Jahr
2017
Quelle
K-PROFI – Impulse für Kunststoffverarbeiter
Sprache
German
Seiten
36
  • LUMiFrac
  • LFrac
  • Tramaco
  • Trapylen
4 weitere
  • Trapur
  • Haftvermittler
  • Haftungsprüfung
  • Kunststoffverarbeitung
Weitere Details
Ausgabe
Ausgabe 3-4/2017
Ort
Bad Homburg
Interne Referenz
1529
Veröffentlichung öffnen

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