Plant protein-based antioxidant Pickering emulsions and high internal phase Pickering emulsions against broad pH range and high ionic strength: Effects of interfacial rheology and microstructure AuthorTingting Feng, Xingwei Wang, Xuejiao Wang, Shuqin Xia, Qingrong Huang Year2021 SourceLWT LanguageEnglish Pages111953 24342.3.2. Centrifugal stability of PEs and HIPPEs tested by LUMISizerLSPickering emulsion 8 more Interfacial rheologyMicrostructureLipid oxidationEnvironmental stressThe present work aimed to explore the stability mechanism of Pickering emulsions (PEs) and high internal phase PEs (HIPPEs) to resist environmental stresses (i.e.pH and ionic strength) via altering the interfacial rheology and microstructure. The storagecentrifugaloxidative stabilities and interfacial properties of PEs and HIPPEs stabilized by pea protein isolate-high pectin-epigallocatechin gallate (PPI-HMP-EGCG) complex were investigated. More details Edition150 Internal reference2434 Open publication →
Polyfunktionelle Urethanacrylatbausteine, Nanokomposite, Dual-Cure Systeme und sauerstofftolerante Organogerman-Initiatoren für die Photopolymerisation und den 3D-Druck AuthorHannah Juliane Buchheit Year2021 SourceDISSERTATION LanguageGerman Pages1-283 2788Zur Untersuchung der Dispersionsstabilitäten wurden Füllstoffe in unterschiedlichen Massenanteilen in das Basisharz aus Laromer:TEGDMA:HPMA = 30:20:50 mit 05 Gew.% Irgacure 819 und 05 Gew.% BHT eingearbeitet und mit einem LUMiSizer vermessen. LS 2 more Komposit-HarzeKorund-Komposite mit WCA12 und Ronaflair zeigten die höchsten Instabilitätsindices und damit die niedrigsten Dispersionsstabilitäten aller vermessenen Komposite More details LocationFakultät für Chemie und Pharmazie Albert-Ludwigs-Universität Freiburg, Germany Internal reference2788 Open publication →
Potential applications of hydrophobically modified inulin as an active ingredient in functional foods and drugs - A review AuthorMuhammad Usman, Chengnan Zhang, Prasanna Jagannath Patil,a Arshad Mehmood,a Xiuting Li,a,* Muhammad Bilal,b Junaid Haider,c and Shabbir Ahmad Year2021 SourceCarbohydr Polym. LanguageGreek Pages117176 2343LUMiSizerLSLUMiFuge 10 more LFnutritionpharmaceuticalEncapsulationHydrophobically modified inulinControlled releaseEmulsionsGut microbiotaStabilization of O/W and W/O emulsions using various types of nonionic polymeric surfactants.creaming stability More details Edition252 Internal reference2343 Open publication →
Potential of Suspension Spraying for Development of Dense WC-12Co Coatings AuthorFilofteia-Laura Toma; Oliver Kunze; Anja Meyer; Annegret Potthoff; Markus Mayer; Johannes Pötschke Year2021 SourceITSC 2021 May 24–28, 2021 LanguageEnglish Pages508-514 2505A LUMiSizer apparatus (LUM GmbHGermany) was used to determine the sedimentation rate of the WC-12CoLS 14 more microstructurephase compositionsuspension high-velocity oxyfuel spray coatingtungsten carbide-cobaltviscosityMicrostructure High-velocity oxyfuel spray coating Spray forming Chemical composition Viscosity Tungsten carbide cermetsSuspension and Solution Plasma and Thermal SprayThermally sprayed WC-Co coatings provide excellent wear resistance and corrosion protection under heavy loadsbut their application usually involves additional grinding and polishing stepswhich can be 3-4 times costlier than the spraying process itself. There is thus the motivation to develop a process that produces smoothnear-net-shape carbide coatings. This contribution is an investigation of WC-12Co coatings obtained by suspension HVOF spraying. Significant work was devoted to the development and characterization of water-based hardmetal suspensions synthesized from commercially available WC and Co powders. The suspensions produced were sprayed using the HVOF processand the resulting coatings were evaluated based on microstructurehardnessand phase composition. More details EditionProceedings Paper No: itsc2021p0508 LocationVirtual Internal reference2505 Open publication →
Prediction of emulsification behaviour of pea and faba bean protein concentrates and isolates from structure–functionality analysis AuthorFatemeh Keivaninahr, Pravin Gadkari, Khaled Zoroufchi Benis, Mehmet Tulbek and Supratim Ghosh Year2021 SourceRSC Adv. LanguageEnglish Pages12117-35 2483Emulsion destabilization under accelerated gravitation. The long-term stability of the emulsions was determined using a photocentrifuge dispersion analyzer (LUMiSizer)LSfood 4 more nutritionThe effects of different extraction methods on the structure–functionality and emulsification behaviour of pea and faba bean protein isolatesand concentrates were studied at pH 7 and 2and a regression model was developed to predict emulsion characteristics based on protein properties. More details Internal reference2483 Open publication →
Preparation of tubular alumina-based membranes incorporated with coal fly ash and application as support to ZSM-5 membranes AuthorMELISSA RODRIGUES DE LA ROCHA Year2021 SourceDOCTORAL THESIS LanguageEnglish 2476LS; Cinza de carvãoMembranas cerâmicasZeolitas 17 more centrifugal castingCeramic membrane CFAZSM-5Coulée centrifugeMembrane céramiqueSynthetic membranes are increasingly used in different applications for the concentrationfractionationand efficient purification of components present in solutions and mixtures of liquids or gases. Ceramic membranes have a large potential over the polymeric ones for applications at high temperaturepressureand in aggressive environments. Howeverthe preparation of ceramic membranes is expensive. The coal fly ash (CFA) is a burning coal byproduct with structural qualitiesmainly composeParticle size distribution of CT3000SG alumina obtained through the sedimentation technique - LUMisizerpsdpsaparticle size distributionanalysis More details LocationUniversidade Federal do Rio Grande do Sul. Brazil Internal reference2476 Open publication →
PŘÍPRAVA A APLIKACE ČÁSTIC Z KOPOLYMERU P(3HB−CO−4HB) PREPARATION AND APPLICATION PARTICLES FROM COPOLYMER OF P(3HB-CO-4HB AuthorKseniia Ostanina Year2021 SourceBSc.Thesis LanguageCzech Pages1-47 2477Bakalářská práce se zabývá přípravou částic z kopolymeru poly(3-hydroxybutyrát-co-4- hydroxybutyrát). Postup je založen na rozpuštění kopolymeru v acetonu a jeho následném dávkování do anti-solventůse kterými je aceton plně mísitelný. This bachelor thesis deals with preparation of particles from poly(3-hydroxybutyráte-co-4-hydroxybutyráte). Copolymer was dissolved in acetone and then the solution had been dosed into the anti-solvents.The produced particles can be successfully used in medical applications. PolyhydroxyalkanoátyPHA 12 more poly(3-hydroxybutyrát-co-4-hydroxybutyrát)P(3HB-co-4HB)částicemedicínské aplikacePolyhydroxyalkanoatespoly(3-hydroxybutyráte-co-4-hydroxybutyráte)particlesmedical applicationsmedicinepharmaceuticalAnalytická centrifugaLUMiSizer 611 More details Editionwith English Abstract LocationBRNO UNIVERSITY OF TECHNOLOGY, FACULTY OF CHEMISTRY, INSTITUTE OF PHYSICAL AND APPLIED CHEMISTRY, Czech Republic Internal reference2477 Open publication →
PRODUÇÃO E CARACTERIZAÇÃO DE MILHO VERDE EM PÓ POR CAST-TAPE DRYING AuthorJonas da Silva Year2021 SourceDissertação de mestrado LanguagePortuguese Pages1-92 2461Distribuição do tamanho das partículasLUMiSIzerLS 10 more PSDPSAparticle size distributionA distribuição do tamanho de partícula foi realizada no Laboratório Interdisciplinar para o Desenvolvimento de Nanoestruturas (LINDEN - UFSC). A análise foi determinada por método de sedimentação liquidacom a utilização de uma centrífuga analítica (LUMiSizer® LS611 GmbHAlemanha) de acordo com a ISO 13318-2.Milho doce; Secagem; Pós; Refractance window. Sweet cornCast-tape drying (CTD) has been shown to be an alternative method for the production of powdered foods that guarantee the stability of dehydrated products. Thusthe objective of this study was to produce powdered sweet corn by CTD and to evaluate the application of a heat pretreatment in the raw material and the physical-chemical and rheological characteristics of the product obtained. Sweet corn. Drying. Powder. Refractance window. milho verdeA secagem por cast-tape drying (CTD) tem se mostrado um método alternativo para a produção de alimentos em pó que garantem a estabilidade dos produtos desidratados. Com issoo objetivo desse estudo foi produzir milho verde em pó por CTD e avaliar a aplicação de um pré-tratamento térmico na matéria-prima e as características físico-químicas e reológicas do produto obtido. More details Editionwith English abstract LocationUniversidade Federal de Santa Catarina, Brazil Internal reference2461 Open publication →
Produção e caracterização físico-química de nanopartículas de amido contendo antocianinas da fruta do jambolão (Syzygium cumini) AuthorKennya Thayres dos Santos Lima Year2021 SourceDissertação submetida para a obtenção do título de Mestra em Engenharia de Alimentos. LanguagePortuguese Pages1-68 LUMiSIzerLS2474Precipitação antissolvente. Nanopartículas biopoliméricas. Pigmentos naturais 12 more Anti-solvent precipitation. Biopolymeric nanoparticles. Natural pigmentsAnthocyanins (ACNs) can be used in the food industry as dyes or antioxidants and are related to disease prevention. In naturethere are different sources of anthocyaninsmany of themlittle studied. The jambolan (Syzygium cumini) is a large tree and can be found in much of the country. As antocianinas (ACNs) podem ser empregadas na indústria de alimentos como corantes ou antioxidantes e estão relacionadas à prevenção de doenças. Na naturezahá diferentes fontes de antocianinasmuitas delaspouco estudadas. O jambolão (Syzygium cumini) é uma árvore de grande porte e pode ser encontrada em grande parte do país.Distribuição de Tamanho de Partículaparticle size distributionanalysispsapsd More details EditionMaster Thesis with English abstract LocationUniversidade Federal de Santa Catarina, Brazil Internal reference2474 Open publication →
Progress in Multidimensional Particle Characterization AuthorUwe Frank, Maximillian J. Uttinger, Simon E. Wawra, Christian Lübbert, Wolfgang Peukert Year2021 SourceKONA Powder and Particle Journal LanguageEnglish 2534particle characterizationmultidimensional measurementnanoparticles 9 more particle technologyparticle propertiesparticle property distributionpsdpsaAnalytical centrifugation (AC)LUMiSizerLSpartice size distribution More details Editionhttps://doi.org/10.14356/kona.2022005 Internal reference2534 Open publication →
Properly Foamed with IML -How Does the Addition of Blowing Agent Affect Adhesion and Molded Part Properties? AuthorChristian Hopmann, Yuxiao Zhang, Jan Wolters Year2021 SourceKunststoffe international LanguageEnglish Pages36-39 2516LUMiFracLFracThermoplastic foam injection molding 9 more Influence on Film Adhesion and Optical AppearanceIn addition to the decoration of the IML componentthe achievable adhesion strength between film and packaging is also relevant. Using the LumiFrac 200 adhesion tester the bond strength was determined for all films and material combinations. Injection MoldingFoam Injection MoldingFilm Technology (IMDIMLFIMetc.)Packaging More details Edition3 LocationSpecialist Article 16th Apr 2021 Internal reference2516 Open publication →
Ready-To-Drink (RTD) Application Process AuthorIdaho Milk Products Milk Innovation Center Year2021 Sourcehttps://www.idahomilkproducts.com/about-us/milk-innovation-center/applications-processes/ LanguageEnglish 2393LUMiSizerLSStability analysis using LUMiSizer 9 more dairymilkReady-To-Drink (RTD) beveragesyogurt and fermented dairyfresh dairyprotein barsReady-To-Mix (RTM) powdersice creambakery and cereal More details Editionavailable online 1.3.2021 12:20 Internal reference2393 Open publication →
Regioselective and water-assisted surface esterification of never-dried cellulose: nanofibers with adjustable surface energy AuthorMarco Beaumont, Caio G. Otoni, Bruno D. Mattos, Tetyana V. Koso, Roozbeh Abidnejad, Bin Zhao, Anett Kondor, Alistair W. T. King and Orlando J. Rojas Year2021 SourceGreenChem. LanguageEnglish Pages6966–6974 2526LUMiSizerLSA new regioselective route is introduced for surface modification of biological colloids in the presence of water. Taking the case of cellulose nanofibers (CNFs) 6 more we demonstrate a site-specific (93% selective) reaction between the primary surface hydroxyl groups (C6-OH) of cellulose and acyl imidazoles. CNFs bearing C6-acetyl and C6-isobutyryl groupswith a degree of substitution of up to 1 mmol g−1 are obtained upon surface esterificationaffording CNFs of adjustable surface energy. The morphological and structural features of the nanofibers remain largely unaffectedbut the regioselective surface reactions enable tailoring of their interfacial interactionsas demonstrated in oil/water Pickering emulsions. Emulsion formation and stabilityMetastability. The level of kinetic stability of the emulsions was evaluated in an accelerated fashion by centrifuging at 4000 rpm on a LUMiSizer dispersion analyzer More details Edition23 Internal reference2526 Open publication →
Responsive Chitosan-Based Microgels AuthorHelin Li Year2021 SourceDissertation LanguageEnglish 2471LUMiFugeLFLUMiSizer 19 more LSThe colloidal stability of the microgels dispersions was determined by a separation analyzerRegarding the development of stimuli-responsive microgels as drug delivery systems for cancer therapiesimprovements in biocompatibilitystabilityand controlled release are the major challenges due to the generally limited dosages of anticancer drugs capable of being loadedpoor drug bioavailabilityand non- specialized drug administration. To overcome those challengesthis Thesis presents various pH-sensitive biopolymer-based microgel systems which exhibit good biocompatibility and biodegradability (whilst producing non-toxic degradation by-products)thus demonstrating the great potential for the incorporation of various active agents including drugs and biologics. medicalmedicinepharmaceuticalHerausforderungen bei der Entwicklung stimuli-responsiver Mikrogele als Wirkstofffreisetzungssysteme (engl. drug-delivery systems) für die Krebstherapie sind die Biokompatibilitätdie Stabilität und die kontrollierte Freisetzung. Diese Limitierungen basieren auf der bisher im allgemeinen begrenzten Dosierung zur Beladung vorgesehener Krebsmedikamenteschlechter Bioverfügbarkeit der Medikamente und nicht spezialisierter Medikamentenverabreichung. Zur Bewältigung dieser Herausforderungen werden in dieser Dissertation verschiedene pH-empfindliche Mikrogelsysteme auf Biopolymer-Basis vorgestelltdie eine gute Biokompatibilität sowie biologische Abbaubarkeit mit nicht-toxischen Abbaunebenprodukten aufweisen und somit großes Potenzial für die Einarbeitung von Wirkstoffeneinschließlich verschiedener Arzneimittel und Biologikaaufweisen. Basierend auf diesen Eigenschaften können sie als Vehikel für den Wirkstofftransportfür Stimulus- induzierten Abbau und kontrollierte Wirkstofffreisetzung eingesetzt werden More details LocationFakultät für Mathematik, Informatik und Naturwissenschaften der RWTH Aachen University Internal reference2471 Open publication →
Richtig schön geschäumt mit IML-Folien - Wie beeinflusst die Treibmittelbeladung Label-Haftung und Formteileigenschaften? AuthorChristian Hopmann, Yuxiao Zhang, Jan Wolters Year2021 SourceKunststoffe international LanguageGerman Pages14-17 2517LUMiFracLFracSpritzgießen PACKAGING 5 more Neben dem Dekor des IML-Bauteils ist die erreichbare Haftfestigkeit zwischen Folie und Verpackung relevant. Mit dem Adhäsionsmessgerät LumiFrac 200 wurde die Verbundfestigkeit für alle Folien und Materialkombinationen bestimmt. Das Thermoplast-Schaumspritzgießen ermöglicht durch die Treibmittelbeladung eine geringere Schmelzeviskositätdie auch für die Herstellung dünnwandiger Verpackungen attraktiv ist. Da spritzgegossene Verpackungen häufig im In-Mold Labeling dekoriert werdenist es wichtig zu verstehenwie das Treibmittel die Haftung beeinflusstum eine Blasenbildung an der Grenzfläche zu vermeiden. More details Edition2 LocationFachartikel 15. Februar 2021 Internal reference2517 Open publication →
Scale-Up of Decanter Centrifuges for the Particle Separation and Mechanical Dewatering in the Minerals Processing Industry by Means of a Numerical Process Model AuthorPhilipp Menesklou, Tabea Sinn, Hermann Nirschl and Marco Gleiss Year2021 SourceMinerals LanguageEnglish Pages229 2874scale-up; solid-liquid separation; decanter centrifuge; process model; dynamic simulationLUMiSizerLS 11 more Decanter centrifuges are frequently used for thickeningdewateringclassificationor degritting in the mining industry and various other sectors. Their use in an industrial process chain requires a sufficiently accurate prediction of the product and the machine behaviour. For this purposeexperiments on a smaller pilot-scale are carried out for scale-up of a decanter centrifugewhich is usually a major challenge. Predicting the process behaviour of decanter centrifuges from laboratory tests is rather difficult. Basicallythere are two common ways of scale-up: Firstvia analytical methods and the law of similaritywhich often requires an enormous experimental effort. Secondusing numerical modelswhich demands a mathematically and physically precise description of the multiple processes running simultaneously in such machines. The settling velocity uset(φ) depends on solids volume fraction and is measured with the analytical centrifuge LUMiSizer More details Edition11 (2) Internal reference2874 Open publication →
Screening the growth inhibition mechanism of sulfate reducing bacteria by chitosan/lignosulfonate nanocomposite (CS@LS) in seawater media AuthorKashif Rasool, Ravi P. Pandey, P. Abdul Rasheed, Tricia Gomez, Enas S. Al-Absi, Gheyath K. Nasrallah, Khaled A. Mahmoud Year2021 SourceJournal of Environmental Chemical Engineering LanguageEnglish Pages106624 2563LUMiCheckLCGreen biocides 7 more Chitosan/Lignosulfonate nanocompositeGreen biocides Chitosan/Lignosulfonate nanocompositeSRBs biofilmToxicitySulfate-reducing bacteria (SRBs) induced biofilm formation is a global industrial concern due to its role in the development of microbial-induced corrosion (MIC). Hereinwe have developed a biodegradable chitosan/ lignosulfonate nanocomposite (CS@LS) as an efficient green biocide for the inhibition of SRBs biofilms. ggregation and stability studies of CS@LS nanospheresThe stability of CS@LS was evaluated using LUMiCheck®Germany More details Edition9 Internal reference2563 Open publication →
SEDIMENTATION OF BIDISPERSE POLYMER SUSPENSIONS IN AQUEOUS POLYMER SOLUTIONS AuthorT. Sobisch, U. Schuldt, D. Lerche Year2021 SourceProceedings FILTECH 2022 (postponed from 2021) LanguageEnglish Pages1-16 2420bidisperse suspensionspolymer solutionsnon-Newtonian liquids 12 more settling in centrifugesgravity settlingAgglomeration and sedimentation at gravityKinetics of clarification for aqueous dispersions of 6 μm PMMA particles as function of NaCMC concentrationLUMiReader PSALRPSAmonodisperse polymer particles (6 and 15 μm) and their bidisperse mixtures in aqueous solutions of carboxmethyl cellulose sodium salt (NaCMC)Evolution of transmission profiles (fingerprints) during gravity sedimentation of 15 μm particles in 1 % m/m solution of NaCMCKinetics of sedimentationSedimentation of monodisperse particles in centrifugal fieldLUMiSizerLS More details LocationCologne, Germany, 8-10 March 2022 Internal reference2420 Open publication →
Separation of aggregated β-lactoglobulin with optimised yield in a decanter centrifuge AuthorNicole Haller, Andreas Stefan Greßlinger, Ulrich Kulozik Year2021 SourceInternational Dairy Journal LanguageEnglish Pages104918 Analytical centrifugation. A temperature-controlled analytical centrifuge (LumifugeLUM GmbHBerlinGermany) was used for characterisation of the particles' sedimentation behaviour in a centrifugal field 7 more 2470LFLUMiSIzerLSThe interest in individual whey protein fractionsespecially the main proteins α-lactalbumin and β-lactoglobulinhas been growing due to their unique nutritional value and their exceptional technofunctional properties. Various fractionation and purification methods have been published. More details Edition114 Internal reference2470 Open publication →
Silica Nanoparticles With Encapsulated DNA (SPED) to Trace the Spread of Pathogens in Healthcare AuthorCinzia Ullrich, Anne M Luescher, Julian Koch, Robert N Grass, Hugo Sax Year2021 Sourcehttps://www.researchsquare.com/article/rs-870804/v1 LanguageEnglish Pages1-40 2475LSbiotechmedicine 12 more medicalInfection controlinfection preventionpathogen transmissionsilica nanoparticlessurrogate markersSPED characterizationHydrodynamic size distributions of SPED in suspensiondispersion analyser (LUMiSizer470 nm light source)To establish effective infection control protocolsunderstanding pathogen transmission pathways is essential. Non-infectious surrogate tracers may safely explore these pathways and challenge pre-existing assumptions. We used silica nanoparticles with encapsulated DNA (SPED) for the first time in a real-life hospital setting to investigate potential transmission routes of vancomycin-resistant enterococci in the context of a prolonged outbreak. pharmaceutical More details Internal reference2475 Open publication →
