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Particle size and size distribution

An in situ SAXS investigation of the formation of silver nanoparticles and bimetallic silver–gold nanoparticles in controlled wet-chemical reduction synthesis

F. Garcia, Paulo R. A.; Prymak, Oleg; Grasmik, Viktoria; Pappert, Kevin; Wlysses, Wagner; Otubo, Larissa; Epple, Matthias; P. Oliveira, Cristiano L.

 ApplicationCharacterizationCustomer publicationsMaterialMetalsNanoparticles & colloidsOtherParticle size and size distributionParticlesSAXSTechniqueTemperature

An in situ SAXS investigation of the formation of silver nanoparticles and bimetallic silver–gold nanoparticles in controlled wet-chemical reduction synthesis

F. Garcia, Paulo R. A.; Prymak, Oleg; Grasmik, Viktoria; Pappert, Kevin; Wlysses, Wagner; Otubo, Larissa; Epple, Matthias; P. Oliveira, Cristiano L.

We present a study on the formation of silver (Ag) and bimetallic silver–gold (AgAu) nanoparticlesmonitored by in situ SAXS as well as by ex situ TEM, XRD and UV-vis analysis in a flow reactor at controlled reaction temperature. The formation mechanism of the nanoparticles is derived from the structural parameters…
A robust expectation-maximization method for the interpretation of small-angle scattering data from dense nanoparticle samples

Bakry, M.; Haddar, H.; Bun?u, O.

 ApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsParticle size and size distributionParticlesSAXSTechnique

A robust expectation-maximization method for the interpretation of small-angle scattering data from dense nanoparticle samples

Bakry, M.; Haddar, H.; Bun?u, O.

A robust method is presented for the resolution of small-angle scattering problems featuring a structure factor. It is based on the local monodisperse approximation and the expectation-maximization…
Typical experiment vs. in-cell like conditions in magnetic hyperthermia: Effects of media viscosity and agglomeration

Bruvera, I. J.; Actis, D. G.; Calatayud, M. P.; Mendoza Zélis, P.

 ApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsParticle size and size distributionParticlesSAXSTechnique

Typical experiment vs. in-cell like conditions in magnetic hyperthermia: Effects of media viscosity and agglomeration

Bruvera, I. J.; Actis, D. G.; Calatayud, M. P.; Mendoza Zélis, P.

Magnetic nanoparticles (MNPs) can be used to transform electromagnetic energy into heat in hyperthermic treatment of cancer and other thermally activated therapies. The MNPs heating efficiency depends strongly on the combination of the MNPs’ structural properties and environmental conditions. MNPs hyperthermic yield is usually studied in diluted suspensions, although, in…
Colloidal Solubility and Agglomeration of Apolar Nanoparticles in Different Solvents

Doblas, David; Kister, Thomas; Cano-Bonilla, Marina; González-García, Lola; Kraus, Tobias

 ApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsParticle interactionsParticle size and size distributionParticlesSAXSTechnique

Colloidal Solubility and Agglomeration of Apolar Nanoparticles in Different Solvents

Doblas, David; Kister, Thomas; Cano-Bonilla, Marina; González-García, Lola; Kraus, Tobias

We studied the concentration-dependent agglomeration of apolar nanoparticles in different solvents. Octanethiol-stabilized gold nanoparticles (AuNPs) in evaporating liquid droplets were observed in situ using small-angle X-ray scattering. Concurrent analysis of liquid volume and particle agglomeration provided time-dependent absolute concentrations of free and agglomerated particles. All…
Combining Small-Angle X-ray Scattering and X-ray Powder Diffraction to Investigate Size, Shape and Crystallinity of Silver, Gold and Alloyed Silver-Gold Nanoparticles

Garcia, P. R. A. F.; Loza, K.; Daumann, S.; Grasmik, V.; Pappert, K.; Rostek, A.; Helmlinger, J.; Prymak, O.; Heggen, M.; Epple, M.; Oliveira, C. L. P.

 ApplicationCharacterizationCustomer publicationsMaterialNanoparticles & colloidsParticle size and size distributionParticlesPhase analysisSAXSShapeSizeTechniqueWAXS

Combining Small-Angle X-ray Scattering and X-ray Powder Diffraction to Investigate Size, Shape and Crystallinity of Silver, Gold and Alloyed Silver-Gold Nanoparticles

Garcia, P. R. A. F.; Loza, K.; Daumann, S.; Grasmik, V.; Pappert, K.; Rostek, A.; Helmlinger, J.; Prymak, O.; Heggen, M.; Epple, M.; Oliveira, C. L. P.

The combination of simultaneous measurements of small and wide angle X-ray scattering (SAXS/WAXS–SWAXS) to investigate the overall size, shape, and crystallinity of silver nanoparticles and alloyed silver-gold nanoparticles in the size range of 8 to 80 nm is shown. The obtained results for overall size are in agreement with the…
Molecular architecture of the Jumonji C family histone demethylase KDM5B

Jerzy Dorosz, Line Hyltoft Kristensen, Nanda G. Aduri, Osman Mirza, Rikke Lousen, Saskia Bucciarelli, Ved Mehta, Selene Sellés-Baiget, Sara Marie Øie Solbak, Anders Bach, Pablo Mesa, Pablo Alcon Hernandez, Guillermo Montoya, Tam T. T. N. Nguyen, Kasper D. Rand, Thomas Boesen & Michael Gajhede

 Customer publicationsParticle size and size distributionProteins & DNA/RNASAXSShapeStructural biology

Molecular architecture of the Jumonji C family histone demethylase KDM5B

Jerzy Dorosz, Line Hyltoft Kristensen, Nanda G. Aduri, Osman Mirza, Rikke Lousen, Saskia Bucciarelli, Ved Mehta, Selene Sellés-Baiget, Sara Marie Øie Solbak, Anders Bach, Pablo Mesa, Pablo Alcon Hernandez, Guillermo Montoya, Tam T. T. N. Nguyen, Kasper D. Rand, Thomas Boesen & Michael Gajhede

The full length human histone 3 lysine 4 demethylase KDM5B (PLU-1/Jarid1B) has been studied using Hydrogen/Deuterium exchange mass spectrometry, homology modelling, sequence analysis, small angle X-ray scattering and electron microscopy ...
Size-exclusion chromatography small-angle X-ray scattering of water soluble proteins on a laboratory instrument

S. Bucciarelli, S. R. Midtgaard, M. Nors Pedersen, S. Skou, L. Arleth and B. Vestergaard

 Customer publicationsParticle size and size distributionProteins & DNA/RNASAXSShapeStructural biology

Size-exclusion chromatography small-angle X-ray scattering of water soluble proteins on a laboratory instrument

S. Bucciarelli, S. R. Midtgaard, M. Nors Pedersen, S. Skou, L. Arleth and B. Vestergaard

Coupling of size-exclusion chromatography with biological solution small-angle X-ray scattering (SEC-SAXS) on dedicated synchrotron beamlines enables structural analysis of challenging samples such as labile proteins and low-affinity complexes...
Investigating Particle Size Effects in Catalysis by Applying a Size-Controlled and Surfactant-Free Synthesis of Colloidal Nanoparticles in Alkaline Ethylene Glycol: Case Study of the Oxygen Reduction Reaction on Pt

Quinson, Jonathan; Inaba, Masanori; Neumann, Sarah; Swane, Andreas A.; Bucher, J.; Simonsen, Søren B.; Theil Kuhn, Luise; Kirkensgaard, Jacob J. K.; Jensen, Kirsten M. Ø.; Oezaslan, Mehtap; Kunz, Sebastian; Arenz, Matthias

 ApplicationCatalystsCharacterizationCustomer publicationsInorganic materialsMaterialMetalsNanoparticles & colloidsParticle size and size distributionParticlesPorous materialSAXSTechnique

Investigating Particle Size Effects in Catalysis by Applying a Size-Controlled and Surfactant-Free Synthesis of Colloidal Nanoparticles in Alkaline Ethylene Glycol: Case Study of the Oxygen Reduction Reaction on Pt

Quinson, Jonathan; Inaba, Masanori; Neumann, Sarah; Swane, Andreas A.; Bucher, J.; Simonsen, Søren B.; Theil Kuhn, Luise; Kirkensgaard, Jacob J. K.; Jensen, Kirsten M. Ø.; Oezaslan, Mehtap; Kunz, Sebastian; Arenz, Matthias

Colloidal platinum nanoparticles are obtained via a surfactant-free polyol process in alkaline ethylene glycol. In this popular synthesis, ethylene glycol functions as solvent and reducing agent. The preparation procedure is known for its reproducibility to obtain 1–2 nm nanoparticles, but at the same time the controlled preparation of larger nanoparticles…
Photocatalytic degradation of bisphenol A induced by dense nanocavities inside aligned 2D-TiO2 nanostructures

Bakardjieva, Snejana; Fajgar, Radek; Jakubec, Ivo; Koci, Eva; Zhigunov, Alexander; Chatzisymeon, Efthalia; Davididou, Konstantina

 ApplicationCatalystsCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialParticle size and size distributionPore size and pore size distributionPorous materialSAXSTechnique

Photocatalytic degradation of bisphenol A induced by dense nanocavities inside aligned 2D-TiO2 nanostructures

Bakardjieva, Snejana; Fajgar, Radek; Jakubec, Ivo; Koci, Eva; Zhigunov, Alexander; Chatzisymeon, Efthalia; Davididou, Konstantina

The preparation of materials with aligned porosity in the nanometer range is of technological importance for a wide range of applications in molecular filtration, biomaterials and catalysis. Herein we present the advantages offered by cryo – lyophilisation technique as a smart and green non-standard concept to produce dense regular polyhedral…
Temperature-Induced Self-Assembly of the Group B Streptococcus (GBS) Fusion Antigen GBS-NN

Rose, Fabrice; Roovers, Silke; Fano, Mathias; Harloff-Helleberg, Stine; Kirkensgaard, Jacob J.K.; Hejnaes, Kim; Fischer, Per; Foged, Camilla

 ApplicationCharacterizationCustomer publicationsMaterialParticle size and size distributionProteins & DNA/RNASAXSSelf-assembled materialStructural biologyTechniqueTemperature

Temperature-Induced Self-Assembly of the Group B Streptococcus (GBS) Fusion Antigen GBS-NN

Rose, Fabrice; Roovers, Silke; Fano, Mathias; Harloff-Helleberg, Stine; Kirkensgaard, Jacob J.K.; Hejnaes, Kim; Fischer, Per; Foged, Camilla

Group B Streptococcus (GBS) is a leading cause of serious bacterial neonatal infections worldwide, which provides an unmet medical need for a globally effective vaccine. The recombinant GBS fusion antigen GBS-NN contains the N-terminal regions of the GBS Rib and Alpha C proteins. It shows promising immunogenicity eliciting protective immunity…
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