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SAXS

In situ SAXS study of non-fat milk model systems during heat treatment and acidification ApplicationCharacterizationCustomer publicationsFoodFood scienceMaterialParticle size and size distributionSAXSShapeSizeTechniqueTemperature

In situ SAXS study of non-fat milk model systems during heat treatment and acidification

Food Research International, 2022, vol 157 DOI:10.1016/j.foodres.2022.111292 Abstract Small-angle X-ray scattering (SAXS) was used to monitor structural changes induced by heat treatment and acid gelation in milk matrices with added whey protein concentrates (WPCs) and nano-particulated whey protein (NWP). In general, heat treatment was found to mainly affect whey protein…
Effects of Hairy Nanoparticles on Polymer Crystallization Kinetics

Jimenez, Andrew M.; Krauskopf, Alejandro A.; Pérez-Camargo, Ricardo A.; Zhao, Dan; Pribyl, Julia; Jestin, Jacques; Benicewicz, Brian C.; Müller, Alejandro J.; Kumar, Sanat K.

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsMaterialNanoparticles & colloidsParticle interactionsParticle size and size distributionPolymer researchSAXSShapeSizeTechnique

Effects of Hairy Nanoparticles on Polymer Crystallization Kinetics

Jimenez, Andrew M.; Krauskopf, Alejandro A.; Pérez-Camargo, Ricardo A.; Zhao, Dan; Pribyl, Julia; Jestin, Jacques; Benicewicz, Brian C.; Müller, Alejandro J.; Kumar, Sanat K.

We previously showed that nanoparticles (NPs) could be ordered into structures by using the growth rate of polymer crystals as the control variable. In particular, for slow enough spherulitic growth fronts, the NPs grafted with amorphous polymer chains are selectively moved into the interlamellar, interfibrillar, and interspherulitic zones of a…
Application of Experimental Design to Hydrogen Storage: Optimisation of Lignin-Derived Carbons

Rowlandson, Jemma L.; Coombs OBrien, James; Edler, Karen J.; Tian, Mi; Ting, Valeska P.

 ApplicationCharacterizationCustomer publicationsMaterialPorous materialRenewable energySAXSSizeTechnique

Application of Experimental Design to Hydrogen Storage: Optimisation of Lignin-Derived Carbons

Rowlandson, Jemma L.; Coombs OBrien, James; Edler, Karen J.; Tian, Mi; Ting, Valeska P.

Lignin is a significant by-product of the paper pulping and biofuel industries. Upgrading lignin to a high-value product is essential for the economic viability of biorefineries for bioethanol production and environmentally benign pulping processes. In this work, the feasibility of lignin-derived activated carbons for hydrogen storage was studied using a…
Ultrastructural modeling of small angle scattering from photosynthetic membranes

Jakubauskas, Dainius; Kowalewska, Lucja; Sokolova, Anna V.; Garvey, Christopher J.; Mortensen, Kell; Jensen, Poul Erik; Kirkensgaard, Jacob J. K.

 ApplicationCharacteristic dimensionCharacterizationCustomer publicationsLipidsMaterialProteins & DNA/RNASAXSSizeStructural biologyTechnique

Ultrastructural modeling of small angle scattering from photosynthetic membranes

Jakubauskas, Dainius; Kowalewska, Lucja; Sokolova, Anna V.; Garvey, Christopher J.; Mortensen, Kell; Jensen, Poul Erik; Kirkensgaard, Jacob J. K.

The last decade has seen a range of studies using non-invasive neutron and X-ray techniques to probe the ultrastructure of a variety of photosynthetic membrane systems. A common denominator in this work is the lack of an explicitly formulated underlying structural model, ultimately leading to ambiguity in the data interpretation.…
Nanofiller Dispersion, Morphology, Mechanical Behavior, and Electrical Properties of Nanostructured Styrene-Butadiene-Based Triblock Copolymer/CNT Composites

Staudinger, Ulrike; Satapathy, Bhabani K.; Jehnichen, Dieter

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsMaterialOrientation analysisPolymer researchSAXSTechnique

Nanofiller Dispersion, Morphology, Mechanical Behavior, and Electrical Properties of Nanostructured Styrene-Butadiene-Based Triblock Copolymer/CNT Composites

Staudinger, Ulrike; Satapathy, Bhabani K.; Jehnichen, Dieter

A nanostructured linear triblock copolymer based on styrene and butadiene with lamellar morphology is filled with multiwalled carbon nanotubes (MWCNTs) of up to 1 wt% by melt compounding. This study deals with the dispersability of the MWCNTs within the nanostructured matrix and its consequent impact on block copolymer (BCP) morphology,…
Short and Soft: Multidomain Organization, Tunable Dynamics, and Jamming in Suspensions of Grafted Colloidal Cylinders with a Small Aspect Ratio

Parisi, Daniele; Ruan, Yingbo; Ochbaum, Guy; Silmore, Kevin S.; Cullari, Lucas L.; Liu, Chen-Yang; Bitton, Ronit; Regev, Oren; Swan, James W.; Loppinet, Benoit; Vlassopoulos, Dimitris

 (Natural) polymersApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsParticle interactionsParticlesPhase analysisSAXSShapeSizeTechnique

Short and Soft: Multidomain Organization, Tunable Dynamics, and Jamming in Suspensions of Grafted Colloidal Cylinders with a Small Aspect Ratio

Parisi, Daniele; Ruan, Yingbo; Ochbaum, Guy; Silmore, Kevin S.; Cullari, Lucas L.; Liu, Chen-Yang; Bitton, Ronit; Regev, Oren; Swan, James W.; Loppinet, Benoit; Vlassopoulos, Dimitris

The yet virtually unexplored class of soft colloidal rods with a small aspect ratio is investigated and shown to exhibit a very rich phase and dynamic behavior, spanning from liquid to nearly melt state. Instead of the nematic order, these short and soft nanocylinders alter their organization with increasing concentration…
Tough Ordered Mesoporous Elastomeric Biomaterials Formed at Ambient Conditions

Rajasekharan, Anand K.; Gyllensten, Christoffer; Blomstrand, Edvin; Liebi, Marianne; Andersson, Martin

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsLiquid crystalsMaterialPhase analysisPolymer researchSAXSTechnique

Tough Ordered Mesoporous Elastomeric Biomaterials Formed at Ambient Conditions

Rajasekharan, Anand K.; Gyllensten, Christoffer; Blomstrand, Edvin; Liebi, Marianne; Andersson, Martin

Synthetic dry elastomers are randomly cross-linked polymeric networks with isotropic and unordered higher-level structural features. However, their growing use as soft-tissue biomaterials has demanded the need for an ordered and anisotropic nano-micro (or) mesoarchitecture, which is crucial for imparting specific properties such as hierarchical toughening, anisotropic mechanics, sustained drug…
Bromomethylation of high-surface area carbons as a versatile synthon: adjusting the electrode–electrolyte interface in lithium–sulfur batteries

Fretz, Samuel J.; Lyons, Christopher T.; Levin, Ella; Chidsey, Christopher E. D.; Palmqvist, Anders E. C.; Stack, T. Daniel P.

 ApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialPorous materialRenewable energySAXSTechnique

Bromomethylation of high-surface area carbons as a versatile synthon: adjusting the electrode–electrolyte interface in lithium–sulfur batteries

Fretz, Samuel J.; Lyons, Christopher T.; Levin, Ella; Chidsey, Christopher E. D.; Palmqvist, Anders E. C.; Stack, T. Daniel P.

A two-step procedure for the surface functionalization of carbon materials has been developed. In the first step, mesoporous carbon (CMK3), carbon black (XC-72R Vulcan), and activated carbon (AC) are bromomethylated efficiently under mild conditions using commercially available reagents, resulting in reproducible surface bromine loadings, the concentrations of which correlate to…
Influence of Iron Salt Anions on Formation and Oxygen Reduction Activity of Fe/N-Doped Mesoporous Carbon Fuel Cell Catalysts

Fretz, Samuel J.; Janson, Caroline; Rosas-Arbelaez, Walter; Palmqvist, Anders E. C.

 ApplicationCatalystsCharacterizationCustomer publicationsMaterialPhase analysisPorous materialRenewable energySAXSTechnique

Influence of Iron Salt Anions on Formation and Oxygen Reduction Activity of Fe/N-Doped Mesoporous Carbon Fuel Cell Catalysts

Fretz, Samuel J.; Janson, Caroline; Rosas-Arbelaez, Walter; Palmqvist, Anders E. C.

Doping carbon materials with transition metal ions can greatly expand their utility, given these metal ions’ unique catalytic activity, for example, in oxygen reduction in proton exchange membrane fuel cells. Unlike main group dopants, a counter anion to the metal cation must be selected and this choice has hitherto received…
Revisiting the Dissolution of Cellulose in NaOH as “Seen” by X-rays

Martin-Bertelsen, Birte; Andersson, Erika; Köhnke, Tobias; Hedlund, Artur; Stigsson, Lars; Olsson, Ulf

 (Natural) polymersApplicationCharacterizationCustomer publicationsMaterialParticle interactionsPolymer researchSAXSShapeSizeTechnique

Revisiting the Dissolution of Cellulose in NaOH as “Seen” by X-rays

Martin-Bertelsen, Birte; Andersson, Erika; Köhnke, Tobias; Hedlund, Artur; Stigsson, Lars; Olsson, Ulf

Cotton production is reaching a global limit, leading to a growing demand for bio-based textile fibers produced by other means. Textile fibers based on regenerated cellulose from wood holds great potential, but in order to produce fibers, the components need to be dissolved in suitable solvents. Furthermore, the dissolution process…
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