Quantitative Assessment of Ceramic Suspension Stability Using a LUMiSizer Analytical Centrifuge AuthorPatrik Sokola, Tina Skalar, Pavel Šiler, Jan Blahut, Michal Kalina, Peter Veteška and Petr Ptáˇcek Year2025 SourceCeramics LanguageEnglish Pages115 3144LSLUMiSizersedimentation; instability index; effect of additives; dispersion media; dispersant concentration; metakaolin; corundum; zirconia 2 more Al2O3ZrO More details Edition8 Internal reference3144 Open publication →
Real-time testing & consolidation fingerprinting using X-radiation extend knowledge in formulation, processing & QC - Odborný seminář: Rentgenový sedimentační analyzátor LUMiReader AuthorA. Uhl in collaboration with Anamet S.r.o. Year2025 SourceWebinar LanguageEnglish 3063LUMiReader X-RayLRXDirect real-time analysis using X-Ray 25 more Consolidation using X-RayMultistep AnalysisCombinationParticle dispersibilityformulation homogeneity by X-ray transmissionZnOmake-uphpccosmeticspersonal carecreamdispersibility of an inorganic filler in a polymer foamOvercome the limitation of optical wavelengths for solutionsNaClsodium chlorideIron(III) nitrate nonahydrate solutionDispersibility of dry TiO2 into other powders20 w/w% CaCO3 dispersed into a polymer matrixReal-time separation of ceramic samplesBattery slurries - sedimentation rate vs. mixing time (energy entry)Creams of unknown composition –Be the first to see changesLacquers for dental applicationsfacial clay masksLUMiSizerLS More details Edition12 March 2025 Locationwww.dispersion-letters.com Internal reference3063 Open publication →
Rheological properties of stirred-type yogurt containing pea protein regulated by welan gum: Implications for dysphagia-targeted medical foods AuthorYalong Guo, Ziyu Zhou, Qingyu Liao, Huimin Ren, Yixin Wang, Aiqin Ma, Hongbin Zhang Year2025 SourceFood Hydrocolloids LanguageEnglish Pages111435 3130LSLUMiSizerLUMiSizer stability analysis Whey separation (wheying-off) 10 more the appearance of whey liquid on the surface of yogurt gelis one of the most common quality defects in yogurt products (Lucey2004). Compared to set yogurtstirred yogurt is more prone to whey separation due to the mechanical homogenization processwhich disrupts the original network structure of the yogurt. This makes whey separation more likely to occur (Matumoto-Pintro et al.2011). In this studythe effect of adding different concentrations of Welan gumfoodnutritiondairy More details Edition167 Internal reference3130 Open publication →
Sex-Based Differences in the In Vitro Digestibility of MCT Emulsions Stabilized by Various Emulsifiers AuthorMijal Perez, Carmit Shani Levi and Uri Lesmes Year2025 SourceFoods LanguageEnglish Pages131 3021emulsions; sex differences; in vitro digestion; medium-chain triglycerides; protein and non-protein emulsifierLUMiSizerLS 1 more Physical Stability Assessment of Emulsions Using Analytical Centrifugation The physical stability of emulsions was evaluated using an analytical centrifuge LUMisizer More details Edition14 Internal reference3021 Open publication →
Stability and Rheological Properties of the Novel Silica-Based Organogel—A Drug Carrier with High Solubilization Potential AuthorGrzegorz Suwinski and Izabela Nowak Year2025 SourceMaterials LanguageEnglish Pages266 3026LSLUMSizersilica; organogel; drug delivery carrier; solubilization; cosmetic 13 more hpcDissolution of a poorly soluble active pharmacological substance in a drug carrier usually requires advanced techniques and production equipment. The use of novel carriers such as microemulsionsvesiclesor nanocarriers might entail various limitations concerning production costformulation stabilityor active substance capacity. In this paperwe present a novel fumed silica-based organogel as a low-costsimple preparation drug or cosmetic carrier with interesting rheological properties and high solubilization capacityParticle size distribution. Volume-weighted particle size distribution was measured on LUMiSizerpsdpsaanalysisPrzedsiębiorstwo Farmaceutyczne Farmapol More details Edition18 Internal reference3026 Open publication →
Statistical simplex centroid experimental design and formulation maps to predict the stability in cosmetic emulsions containing commercial emulsifiers AuthorAngela Mazabel Rios, Juanita Pulido Teuta, Liliam A. Palomeque, Ramon E. Vera, Ronald Marquez,| Johnbrynner García Year2025 SourceJ Surfact Deterg. LanguageEnglish Pages1–15 3102LShome and persnal carehpc 39 more Belcorp ResearchDevelopment & InnovationTocancipaColombia 2 Department of ChemistryUniversidad Nacional de ColombiaBogotaColombia 3 Department of Forest BiomaterialsNorth Carolina State UniversityRaleighNorth CarolinaUSA 4 Department of Chemical EngineeringAgricultural and Agrifood TechnologyUniversity of GironaGironaSpaincosmeticemollientsemulsionformulation mapsLUMiSizerstabilitytextureFormulating cosmetic products to meet consumer expectations poses significant challenges in terms of stability and shelf life. This work evaluates cosmetic emul- sions formulated with three commercial emulsifiers: Polyglyceryl-3 distearate (Dermofeel®a biobased surfactant)Glyceryl stearate (50%)/PEG-100 stearate (50%) (Lipomulse®a nonionic mixture of glyceryl and ethoxylated surfactants)and Potassium cetyl phosphate (Amphisol K®an anionic surfactant). Additionallythree emollientsnamely Caprylic/Capric TriglycerideIsoamyl Cocoateand Jojoba Oilwere incorporated into the formulations. The effect of emulsion composition on stabilitydroplet sizerheologyand texture was systematically assessed via experiments and multivariate regression modelingthereby providing an objective tool for cosmetic emulsions formulation.stability of emulsions was assessed using the separation velocity and instability indexdetermined through analytical centrifugation with a LUMiSizer® More details Editionearly view Internal reference3102 Open publication →
StemCurCol – 3D printed scaffold for diabetic wound regeneration AuthorHenrique Luis Piva, Mariana Santos de Queiroz, Flavia Sayuri Matsuo, Hiago Salge Borges, Mariana Kiomy Osako, Antonio Claudio Tedesco Year2025 SourceAnnals of 3D Printed Medicine LanguageEnglish Pages100203 LSLUMiSizer31233D printing 16 more DiabetesScaffoldCollagenDiabetic woundsparticularly diabetic foot ulcerspose a significant challenge for treatment due to impairedhealing and susceptibility to complications. The complex pathophysiology of wounds involves dysregulated cellular and molecular processes. Advanced therapeutic strategies are needed to address the different stages of wound healing. Curcumina natural polyphenolhas been shown to enhance epidermal re-epithelializationmobilize cellular participants in wound repairand improve different stages of wound healing. In this work curcumin-chitosan nanoparticles have been prepared and characterizedand incorporated in collagen with stem cells and were implanted into normal and diabetic mice with induced wounds and their effects on wound healing were evaluated over 14 days. pharmaceuticalmedicalAccelerated stability tests were performed using a LUMiSizer® analyzerData were obtained in the near-infrared region (NIR) with a centrifugal force of 87 g at 25 ◦Cand the transmission profiles were recorded for 8 hsimulating a one-year shelf life. More details Edition18 Internal reference3123 Open publication →
Structure and Rheology of Polymer-based Emulsions in Common Solvent Stabilized by Copolymers AuthorHyun Jung Lee Year2025 SourceTHESE DE DOCTORAT LanguageEnglish Pages1-124 3134LUMiReader PSALRPSAThe emulsion stability of PS-PMMA emulsions in BE was assessed by measuring the transmission profile of the samples along tubes as a function of time under gravity using LUMiReader® 4 more evolution of the transmission profile of the emulsion under gravity with time is shown in Figure 4-3was measured using a LUMiReaderChapter 4. Microstructure and Rheological properties of aging PS/PMMA-based All Non-aqueous Solvent Emulsionstransmission profile of the emulsion from the top (0%) to the bottom (100%) measured with the LUMiReader® under gravity at different aging times More details LocationLE MANS UNIVERSITE, France Internal reference3134 Open publication →
Study on the interactions and interfacial behaviors of cellulose nanocrystal/β-lactoglobulin complexes for pickering emulsions AuthorQi Wu, Xinna Hu, Shuyu Lu, Bo Xu, Chenyu Bai, Tao Ma, Yi Song Year2025 SourceFood Hydrocolloids LanguageEnglish Pages110539 LS3023nutritionPickering emulsions have been widely used in the cosmetics 10 more biomedicineand food industries (Peito et al.2022; RayeesGaniNoorAyoub& Ashraf2024). Unlike conventional emulsions that are stabilized by small-molecule surfactantssolid particles are used as stabilizers in Pickering emulsions. Laterwe delved deeper into the physical stability of the dispersions using the LUMiSizer More details Edition158 Internal reference3023 Open publication →
Synergistic rheology of chia and aloe vera mucilage with Spirulina residue: Enhancing emulsion stability for sustainable food applications AuthorNuria Calero, Luis A. Trujillo-Cayado, Francisco Carrillo, Sonia Oliveira, Anabela Raymundo Year2025 SourceJournal of Molecular Liquids Volume 437, Part A LanguageEnglish Pages128306 3119LRPSALUMiReader PSAAloe vera mucilage 8 more Chia mucilageEmulsionSpirulina residueAlgal oil Rheologyphysical stability of the emulsions was evaluated using a LUMiReader®This study was conducted in two phases to develop sustainableplant-based food emulsions using chia and aloe vera mucilage combined with Spirulina residual biomass (SRB)a protein-rich byproduct from phycocyanin extraction aimed at valorising industrial residues. More details Edition437 Part A Internal reference3119 Open publication →
The impact of ink processing on key characteristics of platinum detachment and pore structure to optimize fuel cell performance AuthorAmin Said Amin, Ricardo Martinez-Hincapié, Ali Raza Khan, André Olean-Oliveira, Ahammed Suhail Odungat, Annika Gurowski, Adarsh Jain , Lars Grebener, Azita Rezvani, Mohaned Hammad, Thomas Lange, Fatih Özcan, Viktor Colic, Doris Segets Year2025 SourceInternational Journal of Hydrogen Energy LanguageEnglish Pages1240-1256 3077LUMiFracLFracWet impact mill 11 more Platinum detachmentPore structureParticle sizeORR activityElectrochemical performanceAnalytical centrifugation (AC): All sedimentation studies were conducted with the LUMisizerLSbatterenergyCentrifugal detachmentThe LUMiFrac (LUM GmbH) has been used to determine the adherence of the CLs on the PTFE substrate More details Edition144 Internal reference3077 Open publication →
Über anzahlbasierte Referenzmaterialien für die Charakterisierung von nanoskaligen Partikeln - Herausforderung Nanopartikelanalytik AuthorDr. Matthew A. Hood, Dr. Susan Strohschein-Lerche Year2025 Sourcehttps://www.labo.de/optische-analysengeraete/nanopartikelanalytik--bedeutung-anzahlbasierter-referenzmaterialien-fuer-die-charakterisierung-von-nanoskaligen-partikeln.htm?utm_source=Partikelanalyse&utm_medium=Newsletter&utm_campaign=Labo&utm_content=LA_Standard&liana_pv=ec6a0bc2e64ccb1c7fc2b944a7bc3447 LanguageGerman Pages1-7 3073LSpocLUMiSpocNatürliche Materialien im Submikrometer- und Nanometerbereich 2 more Analyse des Referenzmaterials mittels Einzelpartikel-Analysesystem. Die Untersuchung von Stabilität und Homogenität während der Entwicklungsphase erfolgte beim Unternehmen Dr. Lerche unter Anwendung eines nach ISO 17025 akkreditierten Prüfverfahrens. Die Messungen erfolgten mit einem auf flowzytometrischer Technologie basierenden System von LUM. "Engineered Nanomaterials" (ENMs)Die weiteren Messungen des Konzentrationsstandards und die statistischen Auswertungen erfolgten gemäß den Vorgaben der ISO 17034 und ISO Guide 35. Die Bestimmung von Partikelanzahlkonzentration und Partikelgröße erfolgte mit einem Einzelpartikel-Analysesystem basierend auf flowzytometrischer Grundlage (Hersteller: LUM). Die angewandte Methode zur Bestimmung der Partikelanzahlkonzentration ist beim Unternehmen Dr. Lerche Teil der Akkreditierung nach ISO 17025. More details Edition09.07.2025, 08:12 Internal reference3073 Open publication →
Ultrasound combined with pH-shifting improved the emulsification and stability of coconut meal protein isolate by modifying physicochemical properties and intermolecular forces AuthorJin Guo, Jiale He, Wenlin Xu, Zewei Ma, Rongli Li, Wenjie Xia, Xinpeng Bai, Zhaoxian Huang, Yan Tian, Hongjian Zhang Year2025 SourceUltrasonics Sonochemistry LanguageEnglish Pages107436 3182LSLUMiSizerCoconut meal protein isolates Ultrasound combined with pH-shifting treat- ment Physicochemical properties Emulsion stability Viscosity 5 more This study investigated the effects of ultrasound combined with acidic/alkaline pH-shifting (U-C/U-K) and acidic/alkaline pH-shifting combined with ultrasound (C-U/K-U) on the physicochemical properties and emul- sification performance of Coconut Meal Protein Isolate (CMPI). The results demonstrated that these modification treatments reduced the particle size and polydispersity index of CMPIincreased its net chargeand improved its solubilityexcept in the group subjected to the ultrasound followed by acid pH-shifting (U-C). Instability index The LUMiSizer stability analyzerEmulsifying stability The centrifugation stability of CMPI emulsions was evaluated using a LUMiSizer dispersion analyzer. More details Edition120 Internal reference3182 Open publication →
Using the LUMiSpoc® single particle counter and sizer to develop Opti-Count® nanoscale number concentration reference materials AuthorMatthew A. Hood and Elia Wollik Year2025 SourceDispersion Letters LanguageEnglish Pages18-23 3129Opti-Count®reference materialsreproducibility 14 more nanoparticlesparticle size distributionnumber-weighted sizenumber concentrationstatic light scatteringMie theorysingle particle detectionLUMiSpoc®single particle optical counting and sizingSPLS technology®Single Particle Light-Scattering technology400 nm surfactant free aqueous polystyrene particle suspensionsopticountoptikount More details Edition16 Internal reference3129 Open publication →
Verhinderung der Additivmigration in Polymerklebungen durch Atmosphärendruck-Plasmabeschichtungen AuthorDavid Herbig, Sergey Stepanov, Michael Heilig, Annika Stalling, Eduard Kraus, Benjamin Baudrit, Thomas Hochrein, Martin Bastian Year2025 SourceForschungsbericht Plasmaprotect LanguageGerman Pages1-94 3208LFracLUMiFracFraunhofer IFAM 10 more SKZIm Verlauf des Projekts wurde ein Testverfahren zur Beurteilung der Spannungsrissempfindlichkeit von Kunststoffen gegenüber Klebstoffen und Primern entwickelt sowie kritische Verbundkombinationen gescreent. Anschließend wurden verschiedene Beschichtungssysteme abgeschiedencharakterisiert und getestetwobei sich insbesondere SiOxbasierte Schichten als besonders effektiv gegenüber der Klebstoff-induzierten Schädigung erwiesen. Diese verbesserten sowohl die Spannungsrissbeständigkeit als auch die Haftfestigkeit signifikant. Barrierebeschichtungen auf Basis von amorphem Kohlenstoff hingegen zeigten eine gute Performance im Fall der Kunststoff-induzierten Schädigung. Im Rahmen des Forschungsprojekts PlasmaProtect wurde die Herausforderung der Additivmigration in Polymerklebverbindungen untersuchtdie zu Spannungsrissen und Adhäsionsverlusten führen kann. Konkret wurden im Projekt zwei industriell bekannte Schadensfälle näher betrachtet: die Klebstoff- sowie die Kunststoffinduzierte Schädigung des Klebverbunds. Ziel des Projekts war esdurch den Einsatz von Atmosphärendruck-Plasmabeschichtungen wirksame Barriereschutzschichten zu generierendurch welche die Additivmigration verhindert und somit die Langzeitstabilität von Klebverbindungen verbessert wird. Charakterisierung der KlebverbundeStirnabzugstests mittels Centrifugal Adhesion TestingFür die Messung der Stirnabzugsfestigkeit kam die Centrifugal Adhesion Testing (CAT)- Technologie zum Einsatzmit der bis zu acht Klebeproben auf einmal geprüft werden können More details Internal reference3208 Open publication →
Wetting Across the Lyophilic–Lyophobic Spectrum: Morphological Tuning of Anode Catalyst Layers for the Alkaline Oxygen Evolution Reaction AuthorAdarsh Jain, Christian Marcks, Gereon Mahler, Ahammed Suhail Odungat, Lars Grebener, Jacob Johny, Mohit Chatwani, Abhishek Shaji, Tobias Melchert, Marc Frederic Tesch, Malte Behrens, Anna K. Mechler, Vineetha Vinayakumar, Doris Segets Year2025 Sourceengineering archive engrxiv LanguageEnglish Pages1-37 3079In alkaline water electrolysis (AWE)anode wettability plays a critical role in governing bubble dynamics at the anode–electrolyte interface. Effective bubble management is essential for improving AWE performanceas it enhances active site accessibility and reduces transport resistance. This study investigates the influence of super-lyophilicity and super-lyophobicity of spray-coated nickel iron layered double hydroxide (Ni-Fe-LDH) anodes on the electrochemical performance for the oxygen evolution reaction (OER). Ni-Fe-LDH 12 more wettabilityWenzel modelCassie-Baxter modelsuper- hydrophilicitysuper-hydrophobicityalkaline water electrolysisLUMiSizerLSInk characterization All inks were characterized by utilizing analytical centrifugation (Analytical Centrifuge LUMisizer)Layer characterizationTo quantify the adherence and coherence of the coatings under tensile stressthe centrifugal adhesion analyzer LUMiFrac® from the company LUM has been employed. More details EditionPreprint / Version 1 Internal reference3079 Open publication →
零脂果汁酸乳饮料的开发及稳定性分析 - Study on the Development and Stability of Zero Fat Fruit Juice Acidic Milk Beverage AuthorFAN Jun-yan，LIU Hai-qing，ZHAO Shuang，HONG Peng，CHEN Jia，ZHANG Jia-jing，XIE Liu-jia， ZHANG Zhen-zhen，JIN Dan，FANG Ming Year2025 Source饮 料 工 业 LanguageChinese Pages1-10 3190LFLUMiFugeHong Sheng Beverage Group Co.，Ltd. 7 more foodnutritionfruit juice acidic milk beverage; sensory; stabilizerA zero-fat fruit juice acidic milk beverage was developed using skim milk powder，fruit juice and white sugar as the main ingredients. Single-factor and orthogonal experiments were conducted，with sensory evaluation as the primary criterion to determine the optimal formulation. Additionally， the impact of different stabilizer combinations on parameters such as centrifugation sedimentation rate， average particle size， and instability coefficient was analyzed to identify the best stabilizer solution. The results indicated that the optimal formula for the zero- fat fruit juice acidic beverage consisted of 2% milk powder， 8% white sugar， 0.22% citric acid， 1% concentrated fruit juice，and 0.008% acesulfame potassium. The most effective stabilizer combination was a 1∶1 ratio of standardized pectin to soluble soy polysaccharides，with an addition level of 0.4% . Under these conditions，the product exhibited the nutritional benefits and aroma of both milk and fruit juice，a refreshing taste，high sensory scores，and good stability. LSLUMiSizer果汁酸性乳饮料；感官；稳定剂以脱脂奶粉、果汁、白砂糖等为主要原材料，进行零脂果汁酸乳饮料的开发。通过单因素实验和正交实验 方法，以感官评价为主要依据，确定最佳配方。同时，分析不同稳定剂组合对离心沉淀率、平均粒径及不稳定性系数 等参数的影响，从而筛选出最优的稳定剂方案。结果显示，零脂果汁酸乳饮料的最优配方为奶粉 2%、白砂糖 8%、 柠檬酸 0.22%、浓缩果汁 1%，安赛蜜 0.008%；最优稳定剂方案为果胶：可溶性大豆多糖=1∶1（添加量为 0.4%），此条 件下所得零脂果汁酸乳饮料兼具牛奶、果汁营养及香气，口感清爽，感官评分高，具备良好的稳定性。所得产品的蛋 白质含量为 More details Editionwith English abstract Internal reference3190 Open publication →
30 years of LUM GmbH – Years of Flexibility, Innovation, Excellence and Reliable Partnership AuthorThomas Koch Year2024 SourceInternational Conference Dispersion Analysis & Materials Testing 2024 LanguageEnglish Pages1 2950LUMiSizerLUMiReader X-RayLS 12 more LRXtitaniatitanium dioxideThis short review over 10 years of fruitful bilateral industry cooperation between LUM and KRONOS INT. Inc.development of a fast method for a plant applicable product nanoparticle characterisation of the products for food-cosmetics- and pharma applicationthe sedimentation-based stability analysis of TiO2-pigment dispersionsthe measurement of effective agglomerate densities of TiO2-pigments in dispersion and the development of HSP for TiO2-pigmentsparticle size distributionspsdpsaparticle size analysis More details EditionAbstracts LocationBerlin, Germany, 10-11 June 2024 Internal reference2950 Open publication →
A novel amphiphilic polyacrylate-cholesterol derivative as solubility enhancer and emulsion stabilizer for pharmaceutical and cosmetic applications AuthorM. Viola, P. Matricardi, C. Di Meo, R. Cossi, C. Cencetti Year2024 SourceInternational Conference Dispersion Analysis & Materials Testing 2024 LanguageEnglish Pages1-2 2925Polyacrylate-cholesterol derivative; Emulsion; Stability; Topical formulation; Solubility EnhancerPolyacrylic acid (PAA) is a non-toxicbiocompatible 21 more hydrophilic polymer that has gained increasing interest in the healthcare industryCholesterol (CH) is a vital substance in our body’s cells. In pharmaceutical and cosmetic applicationsCH is used in different formulations due to its presence in human sebum and all the layers of the epidermis. For exampleit can be incorporated into moisturizerscreamsand lotions to improve skin hydration by strengthening the skin’s natural barrier and reducing moisture loss. In pharmaceuticswhen the skin barrier is compromisedCH-containing formulations can help restore and repair the barrier functionthereby alleviating symptoms and promoting healing. FurthermoreCH can be used to enhance the hydrophobic drugs’ solubilityand their penetration and absorption through the skinaiding in effective drug delivery. The present work explores the potential for pharmaceutical applications of “PAAbCH”an innovative amphiphilic polyacrylate grafted with CH moieties on its backbone. Due to the amphiphilic properties shown by this PAA derivativeits rheological behavior and its emulsifying actionour research focused on developing oil/water (O/W) emulsions for topical formulationsLumiSizer accelerated stability test profiles of PAAbCH-based emulsions at different sunflower oil concentrationsLShpcpharmaceuticalhome personal carecosmetics More details EditionAbstracts LocationBerlin, Germany, 10-11 June 2024 Internal reference2925 Open publication →
A Procedure for Rational Probe Liquids Selection to Determine Hansen Solubility Parameters AuthorAmin Said Amin, Dietmar Lerche, Ahammed Suhail Odungat, Sven Uwe Boehm, Thomas Koch, Fatih Özcan, and Doris Segets Year2024 SourceChemCatChem LanguageEnglish Pagese202301393 Hansen Solubility Parameters (HSP)viewed in the context of similarity whenever dispersion is focusedoffer valuable insights into the surface characteristics of nanoparticles. Howeverexisting methods for determining HSP via the sedimentation of nanoparticles require multiple probe liquids 19 more resulting in timeconsumingcostly experiments with potential health risks. To address thiswe developed a two-step strategy that enables a systematic selection of liquids2936HDPdispersibilityFormulation is essential in particle science and engineering for creating high-performance products. It is a crucial step in developing a wide range of productsincluding cosmeticsfoodfeedpharmaceuticalspaints and varnishesplasticslaminates and devices for renewable energy technologies like proton exchange membrane fuel cells (PEMFC)or lithium-ion batteries (LIB). batteryenergy storageLUMiSizerLSAnalytical centrifugation The LUMisizer analytical centrifuge was used for all sedimentation studies More details Internal reference2936 Open publication →
