Abschlussbericht im WIPANO-Projekt NoRu Standardisierung und Normung der Charakterisierung von Rußen für Brennstoffzellen und Batterien AuthorAmin, Amin S.; Caidi, Adib; Lange, Thomas; Lerche, Dietmar; Mahlendorf, Falko; Meyer, Thomas; Özcan, Fatih; Peinecke, Volker; Rietz, Uwe; Rotov, Mikhail; Segets, Doris Year2023 SourceAbschlussbericht im WIPANO-Projekt NoRu Stan- dardisierung und Normung der Charakterisierung von Rußen für Brennstoffzellen und Batterien LanguageGerman Pages1-51 3038Im Rahmen des Projektes NoRu konnten signifikante Fortschritte bei der Entwicklung von Standards und Normen zur Charakterisierung von Materialien auf Rußbasis für Brennstoffzellen- und Batterieanwendungen erzielt werden. Mithilfe eines umfangreichen Portfolios an verschiedenenhinsichtlich der Ruß-Charakterisierung optimierten Messmethoden (bspw. analytischen ZentrifugationBöhm Titration 41 more Bestimmung des isoelektrischen Punktes) konnte eine umfassende Materialcharakterisierung von technischen (Pt-funktionalisierten) Rußen im Rahmen einer standardisierten Qualitätskontrolle erfolgreich etabliert werdenkommerzielle Ruße beschafft bzw. von diesen zur Verfügung gestellt: Vulcan XC72/XC72RKetjen Black EC 300JKetjen Black EC 600JD und Imerys Super C65Diese Ruße werden typischerweise in Brennstoffzellen- als auch in Batterieanwendungen eingesetztPartikelgrößenverteilung (PGV)LUMiSizerLSBatch-zu-batch Reproduzierbarkeitstests: Partikelebene Analytische ZentrifugationPrüfprinzip FestigkeitsermittlungLUMiFracLFracFestigkeiten und Bruchbilder der fünf RußeAuswirkung unterschiedlicher Prozessparameter bei der Beschichtung auf die FestigkeitZusätzlich wurden die Elektroden in einer Machbarkeitsuntersuchung mit Röntgenstrahlung im LUMiReader® X-Ray charakterisiert. Hierzu wurden die beschichteten Folien zurechtgeschnit- ten und in einen Probenträger des Messgerätes eingesetzt (Abbildung 14 links). Im oberen Bereich des Probenträgers (Abbildung 14mitte) wird der Sichtschlitz (Medium Luft) durchstra- hltdie Transmission liegt bei 100 %. Darunter befindet sich die mit Kohlenstoff beschichtete Kupferfoliean der unteren Position liegt die Cu-Folie ohne Beschichtung vor. Es ist erkennbardass die beschichtete Folie die Strahlung stärker schwächt als die unbeschichtete Cu-Folie. LUMiReader X-RayLRXElektrode im ProbenträgerDie Ruße KB300 und XC72R und Super C65 sind in einer Machbarkeitsstudie mit dem LUMiSpoc® (LUM GmbH) untersucht worden. Das Einzelpartikel-Streulichtphotometer basiert auf der SPLS-Technologie® und ermöglicht die gleichzeitige Bestimmung der Verteilung von Partikelgrößen und der Partikelanzahlkonzentration von Nano- und Mikropartikeln (Gesamtzahl und Anzahl in bestimmten Größenklassen) in Dispersionen und Emulsionen mit hoher GenauigkeitLUMiSpocLSpocHansen ParameterHSPHDPSchichtcharakterisierung wurde durch die LUM durchgeführt.Die mit Hilfe des LUMiFrac (CAT-Technology) durch LUM untersuchten Schichten bestehen aus einem kommerziellen Katalysator (Fa. Tanaka)dispergiert zusammen mit dem protonischen leitfähi- gen Polymer in einem Isporopanol-Wasser-Gemisch. Es wurden drei Dispersionen mit unter- schiedlichen Energieeinträgen (Sonotrode) mit einer Amplitude von 1040 und 70% herge- stellt. Das Verhältnis Polymer zu Kohlenstoff in der Dispersion betrug 09. Die Beschichtung des Substrates (Teflon) erfolgte mittels Ultraschallsprühbeschichtung. Die Haftfestigkeiten der oben beschriebenen Proben (Abbildung 30) sind erwartungsgemäß ähnlichda die Bruchbilder (Abbildung 31) sich kaum unterscheiden. In allen drei Fällen ist der Adhäsionsbruch zwischen Rußschicht und Substrat zu beobachtenplatinierter RußeCharakterisierung platinierter Ruße: SedimentationsanalyseDispergierbarkeit und StabilitätPartikelgrößenverteilungenSedimentationsstabilitätenPSDPSAQuantitative Haftfestigkeit mittels CAT-Technologiewesentliche Rolle für die Funktion der Brennstoffzelle spielt die Adhäsion von Katalysatorschichten an Elektrolytmembranen. Als Elektrolytmembranen werden Polymermaterialen eingesetzt (PFSA und PTFE als Trägerma- terial einer Produktvorstufe). Die Haftfestigkeiten der Pt/C an beiden Polymeren wurden mittels CAT-Technologie eingehend untersucht More details Internal reference3038 Open publication →
Analysis of Adsorbed Polyphosphate Changes on Milled Titanium Dioxide, Using Low-Field Relaxation NMR and Photoelectron Spectroscopy AuthorLaura N. Elliott, David Austin, Richard A. Bourne, Ali Hassanpour, John Robb, John L. Edwards, Stephen Sutcliffe, and Timothy N. Hunter Year2023 SourceLangmuir LanguageEnglish Pages5697–5709 2850LUMiSizerLSFurther characterization of unmilled dispersions prepared the same way was performed using an analytical centrifuge(LUMiSizer) where the linear settling rate was tracked for samples under 300 rpm. Adsorption 6 more AnionsColloidsOxidesIn this studychanges in the adsorbed amount and surface structure of sodium hexametaphosphate (SHMP) were investigated for aluminum-doped TiO2 pigment undergoing millingtitania. Particle Characterization More details Edition39 Internal reference2850 Open publication →
Application of Atmospheric-Pressure Jet Plasma in the Presence of Acrylic Acid for Joining Polymers without Adhesives AuthorRoman Günther, Walter Caseri and Christof Brändli Year2023 SourceMaterials LanguageEnglish Pages267 2793lumifraclfracpolymer surface modification; nitrogen plasma at atmospheric pressure; polymer surface analysis; reversible bonding; adhesion 3 more For the adhesion testsa centrifugal adhesion test analyzer (LUMifrac)This study investigates the treatment of surfaces with jet plasma at atmospheric pressure in the presence of acrylic acid as a resource-saving and efficient approach to joining polymers on polystyrene (PS) and polyamide 12 (PA 12) surfaces. Acrylic acid was added in order to introduce functional groups to the polymer surfaces More details Edition16 Internal reference2793 Open publication →
Assessment of the Physicochemical and Textural Properties of Food Hydrogels Obtained Using Pea Protein and Gellan Gum AuthorAdonis Hilal, Anna Florowska , Tomasz Florowski and Małgorzata Wroniak Year2023 SourceBiol. Life Sci. Forum LanguageEnglish Pages85 LSLUMiSizer3001delivery systems; functional food; plant-based food; structure; biopolymer; gels; food texture 2 more physical stability of the obtained hydrogelsnutrition More details Edition26 Internal reference3001 Open publication →
Badania właściwości emulsji otrzymywanych z udziałem lipidów strukturyzowanych Exploring the properties of emulsions obtained with structured lipids AuthorIwona Szymańska Year2023 SourcePraca doktorska Doctoral thesis LanguagePortuguese Pages1-195 oleożelacjaemulsje O/Wśmietankastabilność fizyczna 26 more utlenianie lipidówżywność wegańska3184Exploring the properties of emulsions obtained with structured lipids The aim of the study was to analyze the possibility of replacing conventional solid lipids with structured lipids obtained on the basis of vegetable oils (oleogels) in the production of vegan cream analogues. The properties of oleogels (made from refined rapeseed and linseed oils (1:1) with addition of 3%4%5%6%7% or 8% w/w candelilla wax) were compared with palm oil. The O/W (30/70 w/w) emulsionsbased on palm oil or oleogels (with 3-7% w/w wax) and soy drinkwere prepared using sonication. The obtained emulsions were compared with an industrially produced and carrageenan- stabilized cream. Badania właściwości emulsji otrzymywanych z udziałem lipidów strukturyzowanych Celem pracy była analiza możliwości zastępowaniaw produkcji wegańskich analogów śmietankikonwencjonalnych lipidów stałych lipidami strukturyzowanymi otrzymanymi na bazie olejów roślinnych (oleożelami). Porównano właściwości oleożeli (otrzymanych z rafinowanych olejów rzepakowego i lnianego (1:1) z dodatkiem 3%7% lub 8% m/m wosku kandelila) z olejem palmowym. Emulsje O/W (30/70 m/m)na bazie oleju palmowego lub oleożeli (z 3-7% stężeniem wosku) i napoju sojowegowytwarzano stosując sonikację. Otrzymane emulsje porównano ze śmietanką wyprodukowaną w warunkach przemysłowych i stabilizowaną karagenem. Oleożele charakteryzowały się wyższą temperaturą topnienia od oleju palmowego (około 318°C)co miało związek z ich większą stabilnością fizyczną. Określenie stabilności wirówkowej lipidów metodą wielokrotnego rozpraszania światła Stabilność lipidów (zdolność do utrzymywania frakcji ciekłej) wyznaczano również za pomocą analizatora dyspersji LUMiSizerLSfoodnutritionOkreślenie stabilności wirówkowej emulsji Stabilność fizyczną emulsjipoddanych działaniu siły odśrodkowejokreślano metodą wielokrotnego rozpraszania światła za pomocą analizatora dyspersji LUMiSizerProfile transmisji światła w funkcji czasu i położenia próbek emulsjiZmiany wartości indeksów niestabilności podczas wirowania emulsji (LUMiSizer) More details LocationSzkoła Główna Gospodarstwa Wiejskiego w Warszawie Instytut Nauk o Żywności, Poland Internal reference3184 Open publication →
Biomedical non-woven fabric based on nano fibers Author请求不公布姓名 Year2023 SourceCN113265762B LanguageChinese 2816LUMiFracLFracSuzhou Yudeshui Electric Technology Co Ltd 14 more The invention discloses a nano-fiber-based biomedical non-woven fabricwhich is characterized in that firstlyphase-change temperature-adjusting microcapsules are added into core-layer liquid of first fibersa large number of hydrophilic groups are introduced into the core-layer liquid to prepare fibers A with super-hydrophilic performanceand alkali liquor is utilized to prepare multiple pores on the surfaces of the fibers A so as to increase the binding force between the fibers A and antibacterial capsules; the spinning solution is modified through an electrochemical methodmodified ceramic with anti-radiation and anti-bacterial capabilities is addedsecond fibers with super-hydrophobic performance are obtainedthe biomedical non-woven fabric obtained by bonding the first non-woven fabric and the second non-woven fabric through the adhesive has the capabilities of phase change temperature regulationmoisture absorptionantibiosisblood repellency and anti-radiationand the textile fabric can effectively resist the invasion of microorganisms and pathogens while improving the wearing comfort of medical workersand has practicability.Adhesion testing: measured using a LUMiFRac adhesion strength analyzer. More details EditionPatent Internal reference2816 Open publication →
Caratterizzazione di nanomateriali multi- compositi in mezzi (eco)tossicologici a supporto di strategie di Safe & Sustainable by Design AuthorGreta Zanta Year2023 SourceTesi di Laurea LanguageItalian Pages1-85 2838Centrifuga analitica - CSA. LUMiSizerLS; CARATTERIZZAZIONE COLLOIDALE Concentrazione ottimale per la caratterizzazione colloidaleProfili di trasmissione nel tempo 9 more Negli ultimi decenniè aumentato notevolmente l’utilizzo di nanomateriali ingegnerizzati (ENMs) in diversi settori (ad es. medicoediletessile). Tra i materiali più recenti troviamo i nanomateriali multi-compositi (MCNMs)caratterizzati dalla presenza di due o più componenti di dimensioni nanometriche in unico sistemain grado di conferire al prodotto finale proprietà innovative aggiuntive rispetto a quelli a componente singola. Il potenziale rischio che tali materiali possono rappresentare per la salute umana e per l’ambiente ha però suscitato notevoli preoccupazioniin quanto il comportamento e gli effetti degli MCNMs non sono ancora del tutto chiari. Tali materiali infatti possono trasformarsi per interazione con altri composti e degradarsicombinando in maniera sinergica o antagonista gli effetti legati alle singole componential nanomateriale intero o a parti di esso More details LocationUniversità Ca' Foscari Venezia,Italy Internal reference2838 Open publication →
Changes in structure and emulsifying properties of coconut globulin after the atmospheric pressure cold plasma treatment AuthorYang Chen, Mengying Ya, Tianyi Yang, Yajing Fang, Dong Xiang, Weimin Zhang Year2023 SourceFood Hydrocolloids LanguageEnglish Pages108289 2762The stabilization behaviors of the emulsion were further evaluated by an optical analytical centrifuge (LUMiSizerLSAtmospheric pressure cold plasma (ACP) treatment 6 more a non-thermal sterilization technology with great potential in coconut milkcan maximize the retention of the taste and flavour. Howeverit is unavoidable to have an impact on the coconut milk components. In this studycoconut globulin (CG)a component important for coconut milk stabilitywas selected to explore the effect of the ACP treatment on the structure and emulsifying properties of CG. More details Edition136 Part B Internal reference2762 Open publication →
Characterising the sedimentation of bidisperse colloidal silica using analytical centrifugation AuthorHangyu Chen, Xiaodong Jia, Michael Fairweather, Timothy N. Hunter Year2023 SourceAdvanced Powder Technology LanguageEnglish Pages103950 2839Bidisperse colloids Bidisperse sedimentation Batchelor model BackflowLSLUMiSizer 1 more Centrifugal sedimentation experiments More details Edition34 Internal reference2839 Open publication →
Characterization of Emulsions Stabilized by Polysaccharide from The Red Microalga Porphyridium sp. AuthorIrit, D., Meshulam, D., Kravtsov, A., Lesmes, U. & Malis Arad, S. Year2023 Source8th European Phycological Congress EPC8 LanguageEnglish Pages86 2852LSLUMiSizerbiotechnology 3 more Emulsion physical stability was further investigated through analytical centrifugationisolation of compounds from marine sources due to their numerous beneficial health effects. This is true of marine algae which contain structurally diverse bioactive compounds. Of particular interest is the red microalga Porphyridium sp. whose cells are encapsulated within a sulfated polysaccharides and extracellular portions are dissolved in the growth medium. Those sulfated polysaccharides are negatively charged and can be used for a variety of applications in the cosmeticpharmaceutical and food industries. This study investigated the use of the sulfated polysaccharides from the red microalga Porphyridium sp. as potential stabilizers in food emulsions. More details Edition”Scientific Opportunities for a Global Algal Revolution“, Program and Book of Abstracts, Edited by Solène Connan, Emeline Creis, Bertrand Jacquemin, Gabriel Markov and Philippe Potin LocationBrest, Brittany, France, 20-26 August 2023 Internal reference2852 Open publication →
Charakterisierung von Batteriepasten und damit hergestellter Elektroden für den Einsatz in Lithium-Ionen-Batterien AuthorUwe Rietz, Thomas Meyer Year2023 SourceDispersion Letters LanguageGerman Pages8-15 2845BatteriepastenElektrodenLithium-Ionen-Batterien 20 more RußeCarbon BlackOberflächeneigenschaftenHansen Parameter (HSP/HDP)HaftfestigkeitLangzeitstabilitätelektrochemische CharakterisierungLUMiReader X-RayLUMiFracLRXLFracenergy storagebatteryLi4Ti5O12 (Lithium-Titanium-OxideLTOKupferfolienHaftfestigkeitsuntersuchungen an den Elektroden mittels LUMiFracCharakterisierung der Batteriepasten mit dem LUMiReader X-RayEinfluss der Mischzeit auf die StabilitätElektrochemische Charakterisierung -Test-Knopfzelle More details Edition14 Internal reference2845 Open publication →
Chaulmoogra oil-based nanoemulsions for leprosy treatment: A case study with the dapsone AuthorBianca Costa Bernardo Port, Débora Fretes Argenta, Douglas Santos Porto, Gabriela Schneider Rauber, Isabella Dai Prá Zuchi, Izabella Thaís Silva, Thiago Caon Year2023 SourceJournal of Drug Delivery Science and Technology LanguageEnglish Pages104955 separation behavior was evaluated by using the LUMISizer® equipmentLS2909Drugs used to treat leprosy such as dapsone (DAP) can result in various adverse effects when administered orally. The disease-causing pathogen has a preferential distribution in peripheral regions of the body and symptoms are manifested primarily in the skin and peripheral nerves. This aspect motivated 5 more in this studythe development of topical formulations containing DAP. Nanoemulsions (NEs) were selected as drug carriers aiming to enhance cutaneous permeation and sustain the drug release. Chaulmoogra oil (CH) was added to the oily nucleus of the NEs considering its history of use in leprosy and its potential healing effect in the skin lesions caused by Mycobacterium leprae. CH effect on formulation characteristics (sizePDIsurface load and stability) and epithelial cell migration was evaluated.pharmaceuticalmedical More details Edition88 Internal reference2909 Open publication →
Coagulant Concentration in Optimizing Latex Glove Formulations AuthorJonathan Wong Eu Hann Year2023 SourceDKSH Application note LanguageEnglish Pages1 2844LUMiFugeLFLUMiSizer 7 more LS; Latex gloves are manufactured in a series of production processes that involve a variety of chemicals and surfactantsas well as working temperature through a dipping technology. Ceramic or metal formers mimicking the shape of a hand are utilized where after the liquid latex on these formers are dried after the dipping process. In this application notethe latex dispersion was measured and simulated for a total shelf life of six months. The total measurement time required to simulate a period of six months only required two hours as the samples can be accelerated in the LUMiFuge up to 2300 times gravitational force. Coagulants were added into the sample and measured at different temperatures25°C and 60°Cto study the effects of coagulant concentration as well as temperature on the latex dispersion sample.instability indexdispersion stability More details EditionOnline Internal reference2844 Open publication →
Combinations of hydrocolloids show enhanced stabilizing effects on cloudy orange juice ready-to-drink beverages AuthorLisa Staubmann, Agnes Mistlberger-Reiner, El Mehdi Raoui, Gertrude Brunner, Lisa Sinawehl, Marion Winter, Robert Liska, Marc Pignitter Year2023 SourceFood Hydrocolloids LanguageEnglish Pages108436 LUMiFugeLF2895LUMiSIzer 14 more LS;Accelerated long-term stability Near infrared (NIR) transmission profiles of the RTD beverages were measured with a LUMiFuge 1514-85 (LUM GmbHBerlin) to compare the long-term stability of different samples in the presence of accelerated gravitational force (ISO/TR 13097:2013). the current results suggest LUMiFuge being a promising alternative to long-term stability studiesbeveragesfoodnutritionDepartment of Physiological ChemistryFaculty of ChemistryAkras Flavours GmbHVienna Doctoral School in ChemistryInstitute of Applied Synthetic ChemistryTU ViennaChristian Doppler Laboratory for Advanced Polymers for Biomaterials and 3D PrintingCloudy ready-to-drink beverages have to be stabilized by hydrocolloids in order to prevent turbidity loss and undesirable sedimentation during storage time. The present work focuses on the stabilizing effects of pectinguar gum and locust bean gum and the combinations of two of them on ready-to-drink beverages containing 7% of orange juice. The application and the potential combined effects of the mentioned hydrocolloids in these drinks has not been reported yet. More details Edition138 Internal reference2895 Open publication →
Complex bio-nanoparticles assembled by a pH-driven method: environmental stress stability and oil–water interfacial behavior AuthorYan Chen, Xing Chen, Shunjing Luo, Tingting Chen, Jiangping Ye, Chengmei Liu Year2023 SourceJournal of the Science of Food and Agriculture LanguageEnglish 2902LSLUMiSIzerLF 7 more LUMiFugeThe stability of the samples was analyzed using a centrifugal stability analyzer (LUMiFuge)Protein-based nanoparticles have gained considerable interest in recent years due to their biodegradabilitybiocompatibilityand functional properties. Howevernanoparticles formed from hydrophobic proteins are prone to instability under environmental stresswhich restricts their potential applications. It is therefore of great importance to develop green approaches for the fabrication of hydrophobic protein-based nanoparticles and to improve their physicochemical performance More details EditionFirst published: 28 October 2023 Internal reference2902 Open publication →
Determination of Hansen Parameters of Nanoparticles: A Comparison of Two Methods Using Titania, Carbon Black, and Silicon/Carbon Composite Materials AuthorOsama Anwar, Amin Said Amin, Adil Amin, Mena-Alexander Kräenbring, Fatih Özcan, and Doris Segets Year2023 SourcePart. Part. Syst. Charact. LanguageEnglish Pages2300050 Hansen solubility parameters (HSPs)for particles understood as Hansen similarity parameterscan provide valuable information about the surface behavior of nanoparticles. HSPHDP 2 more 2868Analytical Centrifugation: An analytical centrifuge LUMisizer was used to perform all sedimentation experiments More details EditionFirst published: 12 July 2023 Internal reference2868 Open publication →
Determination of Particle Size Distributions of Bulk Samples Using Micro-Computed Tomography and Artificial Intelligence AuthorStefan Höving, Laura Neuendorf, Timo Betting and Norbert Kockmann Year2023 SourceMaterials LanguageEnglish Pages1002 LRPSA; LUMiReader PSA2805determination of particle size distributions; three dimensional particle analysis in bulk; micro-computed tomography; Mask–RCNN; Wadell sphericitySedimentation Analysis 1 more Volumetric particle size distributions measured with different strategies of the sieve size fractions: (a) Sucrose 180–250 μ m More details Edition16(3) Internal reference2805 Open publication →
DETERMINATION OF THE COCOA BUTTER LIQUID SOAP SHAMPOO FORMULA USING RESPONSE SURFACE METHODOLOGY EXPERIMENTAL DESIGN AuthorAzila Abdul Karim, Nur Azilah Abdullah and Nurul Amisha Abdul Mutalib Year2023 SourceMalaysian Cocoa Journal LanguageEnglish Pages55-61 2962LFLUMiFugeLUMiSizer 13 more LSAccelerated Stability The stability measurement was carried out using LUMiFugeThis study was conducted to formulate a liquid shampoo using cocoa butter liquid soap (CBLS). The CBLS has to be combined with other commercial surfactants to enhance the physical properties of the final product. The commercial surfactants selected as the factors were CBLScocamidopropyl betaine (COBET)decylglucoside (POLYG) and guar gum (GGUM)cosmeticshpchome personal carehair careCocoa butter liquid soapsurfactantshampooproduct development More details Edition15(2) Internal reference2962 Open publication →
Determine easily the influence of an additive by direct accelerated stability testing AuthorA. Uhl, T. Sobisch Year2023 SourceDispersion Letters LanguageEnglish Pages1-7 2791nail varnishnail polishhome and personal care 15 more cosmeticsadditiveseparation stabilityaccelerated testingISO/TR13097ISO/TR18811temperaturevelocity distributionpolydisperse sedimentationzone sedimentationInstability indexSedimentation kineticsCumulative extinction weighted sedimentation velocity distributionDirect accelerated stability testing at higher gravity and constantdifferent temperatures More details Edition14 Internal reference2791 Open publication →
Development of Functional Polyphenol Materials Based on Rational Molecular Design AuthorTakehiro Fujita Year2023 SourceDoctoral Thesis LanguageEnglish Pages1-163 2885LUMiFracLFracAdhesion Test 3 more The adhesive strengths of the Poly1 copolymers were evaluated by butt tensile tests using a centrifugal adhesion test analyzer LUMiFracadhesive polymers that mimic adhesion mechanism of mussels have been actively developed. These polymers have been developed by introducing catechol-containing compounds that simplify the structure of L-DOPA into polymers through chemical modificationdeveloped new materials with natural polyphenol functions based on rational molecular design. This thesis entitled in “Development of Functional Polyphenol Materials Based on Rational Molecular Design” consists of four chapters and emphasizes to the development of new functional polyphenol materials More details LocationUniversity of Tsukuba, Japan Internal reference2885 Open publication →
