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Fachpublikationen, Anwendungen und wissenschaftliche Beiträge aus der LUM Literaturdatenbank.

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3140 Ergebnisse

Pickering Emulsions and Hydrophobized Films of Amphiphilic Cellulose Nanofibers Synthesized in Deep Eutectic Solvent

Autor
Umair Qasim, Terhi Suopajärvi, Juho Antti Sirviö, Oskar Backman, Chunlin Xu, and Henrikki Liimatainen
Jahr
2023
Quelle
Biomacromolecules
Sprache
English
Seiten
4113–4122
  • 2917
  • LUMiFuge
  • LF
  • LUMiSizer
12 weitere
  • LS
  • Stability of O/W Emulsions. An analytical centrifuge
  • formation of an O/W interface
  • Deep eutectic solvents (DESs) are emerging green chemicals with many appealing features such as high solvent capacity
  • low vapor pressure
  • and chemical and thermal stability. They can potentially be used to eliminate negative impacts (e.g.
  • toxicity and poor biodegradability) associated with traditional chemical reagents and solvents.1 DESs consist of a mixture of quaternary ammonium or metal salt and a hydrogen bond donor with a melting point significantly lower than that of the individual component.2 DESs derived from organic compounds have intensively been revealed in the valorization and modification of biomaterials.3 Particularly
  • they provide a sustainable and efficient medium to create functionalized cellulose nanoma- terials for advanced applications. a dual-functioning deep eutectic solvent system based on triethylmethylammonium chloride and imidazole was harnessed as a swelling agent and a reaction medium for the esterification of cellulose with n-octyl succinic anhydride (OSA). The modified or amphiphilic cellulose nanofibers (ACNFs)
  • synthesized using three different OSA-to-anhydroglucose unit molar ratios were further converted into nanofibers with degree of substitution (DS) values of 0.24−0.66. The ACNFs possessed a lateral dimension of 4.24−9.22 nm and displayed surface activity due to the balance of hydrophobic and hydrophilic characteristics. The ACNFs made stable aqueous dispersions; however
  • the instability index of ACNF-3 (0.51) was higher than those of ACNF-1 (0.29) and ACNF-2 (0.33)
  • which was attributed to the high DS-induced hydrophobicity
  • causing the instability in water. The amphiphilic nature of ACNFs promoted their performance as stabilizers in oil-in-water Pickering emulsions with average droplet sizes of 4.85 μm (ACNF-1) and 5.48 μm (ACNF-2). Self-standing films of ACNFs showed high contact angles for all the tested DS variants eous dispersions of ACNFs were also tested for coating fruits to increase their shelf life. Coatings improved their shelf life by decreasing oxygen contact and moisture loss.
Weitere Details
Ausgabe
24, 9
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2917
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Piperine Extraction and Encapsulation in Polycaprolactone Nanoparticles

Autor
Julia Cedran Coco, Luiza Aparecida Luna Silvério, Érica Mendes dos Santos, Ana Claudia Sueiro, Janaína Artem Ataide, Ana Cláudia Paiva-Santos and Priscila Gava Mazzola
Jahr
2023
Quelle
Cosmetics
Sprache
English
Seiten
152
  • 2907
  • hpc
  • LUMiSIzer
  • LS
16 weitere
  • black pepper; piperine; polymeric nanoparticle; topical application
  • pharmaceutical
  • Nanoparticles Stability
  • Recorded evolution of transmission profiles of empty (a) and extract-loaded nanoparticles (b).The accelerated stability and separation behavior was assessed using LUMiSizer
  • Instability indexes
  • The comparison of instability index and sedimentation velocity for empty and loaded nanoparticles was performed
  • Black pepper
  • a commonly utilized culinary condiment
  • holds significant importance in Ayurvedic and Chinese medicinal practices due to its various biological benefits
  • including antioxidant
  • antimicrobial
  • and anti-inflammatory properties. To amplify these attributes and enhance their efficacy in formulations
  • the utilization of nanocarriers presents a promising approach. Thus
  • the objective of this study was to obtain a pepper extract
  • evaluate its constituents
  • and encapsulate it in polymeric nanoparticles. pharmaceutical
Weitere Details
Ausgabe
10
Interne Referenz
2907
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Plant-Based Cream Cheese Product and Method of Making a Plant-Based Cream Cheese Product

Autor
Madeline Erickson Goris, Andrew E. McPherson, Jennifer Sakurai, Andrea Thyen, Ann Elizabeth Wasko
Jahr
2023
Quelle
US20230129124A1
Sprache
English
  • 3016
  • A plant-based cheese product
  • particularly cream cheese type products
  • is provided herein
7 weitere
  • Kraft Foods Group Brands LLC
  • To compare the samples at both room temperature and elevated temperature
  • the transmission of light with a wavelength of 865 nm through each of the samples (held in a 20 mm×10 mm×2 mm cuvette) was measured with a LUMISIZER®
  • LS
  • food
  • nutrition
  • LUMiSizer
Weitere Details
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3016
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Probing the Interfacial Properties of Oil–Water Interfaces Decorated with Ionizable, pH Responsive Silica Nanoparticles

Autor
Ahmed Wasel Alsmaeil, Antonios Kouloumpis, Georgia Potsi, Mohamed Amen Hammami, Mazen Yousef Kanj, and Emmanuel P. Giannelis
Jahr
2023
Quelle
Langmuir
Sprache
English
Seiten
3118–3130
  • Equal volumes of oil and a 1 wt % suspension of silica NPs in water were prepared with a protocol similar to that of the LUMiSizer experiments
  • 2837
  • EXPEC Advanced Research Center
  • Saudi Aramco
4 weitere
  • Cornell University
  • College of Petroleum Engineering & Geosciences
  • King Fahd University of Petroleum & Minerals
  • LS
Weitere Details
Ausgabe
39, 8
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2837
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Protein Soft Drinks: A Retail Market Analysis and Selected Product Characterization

Autor
Niamh Ahern, Elke K. Arendt and Aylin W. Sahin
Jahr
2023
Quelle
Beverages 2023, 9, 73
Sprache
English
Seiten
73
  • LUMiSIzer
  • LS; 2908
  • beverages; nutrition; plant-based protein; animal-based protein; physicochemical analysis
  • The market for protein-based drinks is endlessly growing
15 weitere
  • as the awareness of health-conscious consumers demands a shift from traditional protein smoothies or shakes to clear beverage alternatives that address thirst and hydration. The aim of this study was to investigate the soft drink market on a global scale with a focus on commercially available high-protein soft drinks
  • carbonated and uncarbonated
  • from both animal- and plant-based protein sources. Additionally
  • the physicochemical properties of 25 selected protein soft drinks from the market research were evaluated
  • including their protein content
  • density
  • viscosity
  • particle size
  • stability
  • pH and total titratable acidity (TTA)
  • to explore their quality attributes
  • Phase Separation Stability was determined using a Lumisizer
  • The separation rate of each sample is presented in Table 2. Overall results indicate that all beverages are shown to be stable according to transmission profile Lumisizer graphs
  • Sedimentation layers were found on some products
  • which can be seen from the displayed Lumisizer graph
Weitere Details
Ausgabe
9
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2908
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Quantifying techno-functional properties of ingredients from multiple crops using machine learning

Autor
Anouk Lie-Piang, Jos Hageman, Iris Vreenegoor, Kai van der Kolk, Suzan de Leeuw, Albert van der Padt, Remko Boom
Jahr
2023
Quelle
Current Research in Food Science
Sprache
English
Seiten
100601
  • 2889
  • Food ingredients Food formulation Mild fractionation Techno-functional properties Machine learning
  • LF
  • LUMiFuge
15 weitere
  • LS
  • LUMiSizer
  • Food ingredients with a low degree of refining consist of multiple components. Therefore
  • it is essential to formulate food products based on techno-functional properties rather than composition. We assessed the po- tential of quantifying techno-functional properties of ingredient blends from multiple crops as opposed to single crops. The properties quantified were gelation
  • viscosity
  • emulsion stability
  • and foaming capacity of ingredients from yellow pea and lupine seeds. The relationships were quantified using spline regression
  • random forest
  • and neural networks. Suitable models were picked based on model accuracy and physical feasibility of model pre- dictions. Emulsion separation velocity
  • The separation (or creaming) velocity was measured with an adapted protocol with a LUMiFuge
  • Food Process Engineering
  • Wageningen University
  • Biometris
  • Applied Statistics
  • FrieslandCampina
Weitere Details
Ausgabe
7
Interne Referenz
2889
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Screening of superparamagnetic iron oxide nanoparticles for their application in the human body: Influence of various coatings

Autor
Chiara Turrina, Anna Klassen, Davide Milani, Diana M. Rojas-González, Gerhard Ledinski, Doris Auer, Barbara Sartori, Gerhard Cvirn, Petra Mela, Sonja Berensmeier, Sebastian P. Schwaminger
Jahr
2023
Quelle
ChemRxiv
Sprache
English
Seiten
1-23
  • LUMiReader PSA
  • LRPSA
  • 2750
  • Iron oxide nanoparticles
10 weitere
  • Nanomedicine
  • Simulated body fluids
  • Cytocompatibility
  • Agglomeration
  • behavior
  • Degradation behavior
  • The LUMIReader was used to analyze the sedimentation rate of the IONs in a magnetic field by STEP technology. The space- and time-resolved extinction profiles (STEP) technology was used to understand the particle’s stability and magnetophoretic behavior at pH 7.4 The sedimentation rates in a magnetic field increase with higher agglomeration and higher saturation magnetization of the particles
  • ron oxide nanoparticles (IONs) are of great interest in nanomedicine for imaging
  • drug delivery
  • or for hyperthermia treatment.
Weitere Details
Ausgabe
Jan 10, 2023 Version 1
Interne Referenz
2750
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Self-supported MOF/cellulose-nanocrystals materials designed from ultrafiltration

Autor
Lorenzo Metilli, Héloïse Ugo, William Chèvremont, Cyril Picard and Frédéric Pignon
Jahr
2023
Quelle
Soft Matter
Sprache
English
Seiten
8228
  • 2904
  • LF
  • LUMiFuge
  • LUMiSizer
6 weitere
  • LS
  • tability of the suspension against phase separation was determined using a LuMiFuge Stability Analyzer
  • Metal–organic-frameworks (MOFs) are promising materials for addressing critical issues such as petrochemical separation
  • water purification
  • energy storage and drug delivery
  • Cellulose nanocrystals (CNCs)
Weitere Details
Ausgabe
19
Interne Referenz
2904
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Separation of the major whey proteins α-Lactalbumin and β-Lactoglobulin by means of selective precipitation and continuous centrifugal separation

Autor
Nicole Haller
Jahr
2023
Quelle
Dissertation
Sprache
English
Seiten
1-173
  • 2811
  • LUMiFuge
  • LF
  • LUMiSizer
22 weitere
  • LS; Sediment consolidation behavior
  • A helpful tool for analysis of sediment consolidation behavior are analytical centrifuges
  • like the Lumifuge (LUM GmbH
  • Berlin
  • Germany)
  • which was used in this study
  • A temperature-controlled analytical centrifuge (Lumifuge
  • LUM GmbH
  • Ger- many) was used for characterization of the particles´ sedimentation behavior in a centrifugal field.whey proteins and thereof derived products became one of the most important and lucrative branches in dairy industry
  • food
  • nutrition
  • beverages
  • This thesis proposes an innovative process for the separation of the major whey protein fractions
  • named α-Lactalbumin (α-La) and β-Lactoglobulin (β-Lg).The first one is a selective thermal aggregation of one of the major whey protein fractions
  • while the counterpart re- mains native and soluble in the liquid phase. The second step is the separation of the aggregated fraction from the liquid phase by using a continuous decanter cen- trifuge. The selective aggregation of each of the major fractions
  • α-La and β-Lg
  • respectively
  • was followed by subsequent centrifugal separation
  • which was inves- tigated as an own topic. The aim was to develop a new
  • efficient
  • and scalable process
  • which delivers high purity protein fractions
Weitere Details
Ort
TUM School of Life Sciences der Technischen Universität München, Germany
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2811
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SEPARATOR FOR ELECTROCHEMICAL DEVICE AND PRODUCTION METHOD THEREFOR

Autor
HAN, Da-Kyung Daejeon, JEONG, So-Mi, KIM,Min-Ji
Jahr
2023
Quelle
EUROPEAN PATENT APPLICATION EP 4 203 169 A1
Sprache
English
  • 2877
  • LG Energy Solution
  • Ltd.
  • Composite particles 2 were evaluated in terms of dispersibility to determine whether they were coated or not. Non-coated particles (Al(OH) 3) were mixed with PVAc at a weight ratio of 75:25
22 weitere
  • and the resultant mixture was introduced to acetone. The solid content
  • except the solvent
  • was 15 wt%. The resultant dispersion was introduced to a dispersion analyzer (Lumisizer
  • available from LUM)
  • centrifugal force was applied thereto
  • while rotating the dis- persion at a rate of 1
  • 000 rpm
  • and then the sedimentation rate was determined depending on time. Meanwhile
  • the same procedure was carried out for Composite particles 2. The results are shown in the following Table 2. As can be seen from Table 2
  • in the case of coated Composite particles 2
  • they are coated with a titanate-based compound
  • and thus show a significantly reduced sedimentation rate as compared to non-coated particles. LUMiSizer
  • LS
  • battery
  • energy storage
  • he present disclosure relates to a separator for an electrochemical device. The separator includes a semi-crystalline and/or amorphous polymer
  • such as PVAc and EVA
  • as a binder polymer of an inorganic coat- ing layer
  • wherein the surfaces of the inorganic particles are coated with a coupling agent. Therefore
  • it is possible to prevent the inorganic particles from being detached from the inorganic coating layer. In addition
  • phase sep- aration is accelerated under a humidified condition in manufacturing the separator so that the surface of the separator may be provided with an adhesive portion in which a large amount of binder polymer is distributed. As a result
  • the separator may have improved binding force to an electrode
Weitere Details
Ausgabe
European publication server EP4203169
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2877
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Settling of superparamagnetic silica encapsulated DNA microparticles in river water

Autor
Yuchen Tang, Fengbo Zhang, Thom Bogaard, Claire Chassagne, Zeeshan Ali, Sulalit Bandyopadhyay, Jan Willem Foppen
Jahr
2023
Quelle
Hydrological Processes
Sprache
English
Seiten
e14801
  • The particle size distribution (PSD) of the SiDNAFe MPs suspended in MQ was characterized based on their sedimentation rate in a centrifugal force field by a centrifugal separation analysis using a LUMiSizer
  • LS
  • 2840
  • aggregation
6 weitere
  • DNA tracer
  • microparticle
  • settling
  • biotech
  • Particle tracers are sometimes used to track sources and sinks of riverine particulate and contaminant transport. A potentially new particle tracer is 200 nm sized super-paramagnetic silica encapsulated DNA (SiDNAFe). The main objective of this research was to understand and quantify the settling and aggregation behaviour of SiDNAFe in river waters based on laboratory settling experiments
  • water treatment
Weitere Details
Ausgabe
37
Interne Referenz
2840
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Simplified Approach to Characterize the Cooling Crystallization in a Modular Mini-Plant

Autor
Stefan Höving, Phil Bolien, Paul Siebers and Norbert Kockmann
Jahr
2023
Quelle
Crystals
Sprache
English
Seiten
147
  • 2751
  • LRPSA
  • LUMiReader PSA
  • cooling crystallization; characterization; upscaling; modular processing
4 weitere
  • Analytics
  • The previously mentioned samples have been analyzed for their volumetric PSD of the containing crystals. In order to do so
  • the LUMi Reader® PSA453 that uses a sedimentation method was used. particle size distribution
  • particle size analysis
Weitere Details
Ausgabe
13(1)
Interne Referenz
2751
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Simulation of bidisperse colloidal centrifugal sedimentation using a mixture viscosity model

Autor
Hangyu Chen, Thomas C. Sykes, Oguzhan Kivan, Xiaodong Jia, Michael Fairweather, and Timothy N. Hunter
Jahr
2023
Quelle
Phys. Fluids
Sprache
English
Seiten
123306
  • 2939
  • Colloidal systems
  • Kinematics
  • MATLAB
16 weitere
  • Nanoparticle
  • Electrolytes
  • Intermolecular forces
  • Centrifugal sedimentation
  • Viscosity
  • Brownian motion
  • To verify predicted concentration profiles
  • a LUMiReader X-Ray
  • LRX
  • LUMiSizer
  • LS
  • edimentation of both monodisperses and bidisperse suspensions was monitored using a LUMiSizer analytical centrifuge
  • Gravitational sedimentation is one of the most important solid–liquid separation methods and is widely used in industries
  • such as water treatment
  • minerals processing
  • and pharmaceuticals
Weitere Details
Ausgabe
35
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2939
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Small Particles with a Big Impact - Challenges and Implications of the EU Regulation Defining Nanomaterials

Autor
Jens Raschke, Maximilian Uttinger, Dietmar Lerche
Jahr
2023
Quelle
https://www.chemanager-online.com/en/news/small-particles-big-impact
Sprache
English
  • 2873
  • particle characterization techniques
  • clearly defined standards and standard operating procedures
  • nanomaterial classification
4 weitere
  • Titanium dioxide
  • TiO2
  • tricalcium citrate
  • Silver-gold alloy nanoparticle dispersion
Weitere Details
Ausgabe
1.5.2023
Interne Referenz
2873
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Small-Scale Solids Production Plant with Cooling Crystallization, Washing, and Drying in a Modular, Continuous Plant

Autor
Stefan Höving , Thomas Schmidt, Maximilian Peters, Hendrik Lapainis and Norbert Kockmann
Jahr
2023
Quelle
Processes
Sprache
English
Seiten
2457
  • LRPSA
  • LUMiReader PSA
  • 2864
  • cooling crystallization; filtration; filter cake washing; filter cake drying; continuous downstream processing; integrated small-scale production
3 weitere
  • the solids were separated from the mother liquor and prepared for PSD determination via sedimentation analysis with a LUMiReader® PSA
  • psd
  • particle size distribution
Weitere Details
Ausgabe
11
Interne Referenz
2864
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Solid-liquid separation in filter presses: A sustainable design and optimization of multi-scale processes through digitalization

Autor
Helene Katharina Baust, Bernd Fränkle, Hermann Nirschl, Marco Gleiss
Jahr
2023
Quelle
https://www.min-eng.com/sustainableminerals23/drafts/session3/baust.pdf
Sprache
English
Seiten
1-5
  • 2862
  • LUMiReader PSA
  • LRPSA
  • The LUMiReader (LUM GmbH
7 weitere
  • Berlin) enables the measurement of the settling velocity of particle systems
  • Filter presses
  • solid-liquid-separation
  • resolved simulation
  • CFD
  • he focus of this presentation is on filter presses. Their design is based on analytical models and the experience of the manufacturer. Dynamic processes are not considered
  • which enforces expensive pilot-scale experiments for scale-up. The presented method fully considers the multi-scale nature of separation processes. Simple laboratory experiments form the basis and provide appropriate material functions. CFD simulations allow to investigate the hydrodynamic interaction of solid and liquid phase during a separation process. Digital twins support the design of filter presses and the scale-up to industrial scale
Weitere Details
Ausgabe
found online 25 October 2023
Interne Referenz
2862
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Stability and Tribological Performance of Nanostructured 2D Turbostratic Graphite and Functionalised Graphene as Low-Viscosity Oil Additives

Autor
Gustavo Alves Lau, Guilherme Oliveira Neves, Diego Berti Salvaro, Cristiano Binder, Aloisio Nelmo Klein and José Daniel Biasoli de Mello
Jahr
2023
Quelle
Lubricants
Sprache
English
Seiten
155
  • Ls
  • LUMiSizer
  • 2848
  • 2D graphite; graphene; suspension stability; lubrication; tribology
1 weitere
  • he accelerated analysis of suspension stability was performed using an accelerated multisample analytical photo-centrifuge LUMiSizer
Weitere Details
Ausgabe
11
Interne Referenz
2848
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Stability mechanism of Pickering emulsions co-stabilized by protein nanoparticles and small molecular emulsifiers by two-step emulsification with different adding sequences: From microscopic to macroscopic scales

Autor
Song Cui, Zhenyu Yang,David Julian McClements, Xingfeng Xu, Xin Qiao, Liyang Zhou, Qingjie Sun:, Bo Jiao, Qiang Wang, Lei Dai
Jahr
2023
Quelle
Food Hydrocolloids
Sprache
English
Seiten
108372
  • The physical stability of the Pickering emulsions was characterized under centrifugal forces using a laser profiling device (LUMiSizer
  • LS
  • 2761
  • Pickering emulsions are increasingly being explored for their potential applications within the food industry. However
4 weitere
  • the stability of these emulsions is often limited when stabilized by single colloidal particles. Herein
  • we examined the possibility of improving the performance of Pickering emulsions by using a combination of colloidal particles (zein nanoparticles
  • Z) and small molecular emulsifiers (quillaja saponin
  • Q).
Weitere Details
Ausgabe
137
Interne Referenz
2761
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Stabilizing effect of polyglycerides as emulsifiers in cosmetic emulsions. Efecte estabilitzant dels poliglicèrids com a emulgents en emulsions cosmètiques.

Autor
Sergio Lozano Gorgoso
Jahr
2023
Quelle
Grau de Química, Treball Final de Grau
Sprache
English
Seiten
1-56
  • lumsizer
  • emulsions
  • emulsifiers
  • stability
18 weitere
  • polyglycerides
  • cosmetic formulation
  • moisturizing cream
  • LS
  • LUMiSizer
  • 3183
  • The final goal of this work is to obtain a complete cosmetic formulation using the polyglyceride and glyceride that give the best results in the previous stability study. Since the prepared formulation is a moisturizing cream
  • the possibility of changing the usual oil (paraffin oil) by natural origin oils was also checked. This way the emulsions would have less allergenic reactions on skin and could be used in atopic skin cases
  • emulsió
  • emulgent
  • estabilitat
  • poliglicèrids
  • formulació cosmètica
  • crema hidratant
  • LUMiSizer to study stability with time and temperature as controlled parameters
  • UMiSizer stability analysis graphic of experiment 3 emulsion with PG4O and GO
  • LUMiSizer stability analysis graphic of experiment 4 emulsion with PG4S and GS.
  • LUMiSizer stability analysis graphic of experiment 5 emulsion with PG4L and GL
Weitere Details
Ort
Universitat de Barcelona, Spain
Interne Referenz
3183
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Sterically Stabilized Diblock Copolymer Nanoparticles Enable Efficient Preparation of Non-Aqueous Pickering Nanoemulsions

Autor
Saul J. Hunter and Steven P. Armes
Jahr
2023
Quelle
Langmuir
Sprache
English
Seiten
7361−7370
  • 2881
  • LS
  • irst example of a non-aqueous Pickering nanoemulsion
  • which comprises glycerol droplets dispersed in mineral oil. The droplet phase is stabilized by hydrophobic sterically stabilized poly(laurylmethacrylate)-poly(benzyl methacrylate) nanoparticles which are prepared directly in mineral oil using polymerization-induced self-assembly
6 weitere
  • Analytical Centrifugation. Droplet size distributions were assessed using a LUMiSizer analytical photocentrifuge
  • psd
  • psa
  • particle size distribution analysis
  • Analytical centrifugation (LUMiSizer instrument) traces recorded for freshly made and one-day-old glycerol-in-mineral oil Pickering nanoemulsions
  • Volume-weighted cumulative size distributions
Weitere Details
Ausgabe
39
Interne Referenz
2881
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