Customer publications Archives - Page 79 of 118

Customer publications

Tailoring Supramolecular Nanotubes by Bile Salt Based Surfactant Mixtures
Gubitosi, Marta; Travaglini, Leana; di Gregorio, Maria Chiara; Pavel, Nicolae V.; Vázquez Tato, José; Sennato, Simona; Olsson, Ulf; Schillén, Karin; Galantini, Luciano

An approach for tailoring self-assembled tubular structures is described. By controlling the relative composition of a two-component surfactant mixture comprising the natural bile salt lithocholate and its bolamphiphilic derivative, it was possible to finely tune the nanotube cross-section of the mixed tubular aggregates that self-associated spontaneously in aqueous solution at…

Customer publications

Water-Insoluble Surface Coatings of Polyion–Surfactant Ion Complex Salts Respond to Additives in a Surrounding Aqueous Solution
Gustavsson, Charlotte; Obiols-Rabasa, Marc; Piculell, Lennart

Hydrated, but water-insoluble, ?complex salts? (CS) composed of alkyltrimethylammonium surfactant ions with polyacrylate counterions are known to exhibit a rich phase behavior in bulk mixtures with water and have recently been shown to act as water-responsive surface coatings. Here it is shown, by SAXS measurements, that surface coatings of CS…

Customer publications

Interactions of Small Dendrimers with Sodium Dodecyl Sulfate at the Air–Water Interface
Yanez Arteta, Marianna; Campbell, Richard A.; Watkins, Erik B.; Obiols-Rabasa, Marc; Schillén, Karin; Nylander, Tommy

We have determined how the bulk behavior of mixtures of small cationic poly(amidoamine) dendrimers (generation 2, PAMAM-G2) and sodium dodecyl sulfate (SDS) affects the structure and composition of the adsorbed layers at the air?water interface. The aim is to reveal how the size of a well-defined hyperbranched polyelectrolyte affects the…

Customer publications

Sugar–Bile Acid-Based Bolaamphiphiles: From Scrolls to Monodisperse Single-Walled Tubules
Gubitosi, Marta; Travaglini, Leana; D’Annibale, Andrea; Pavel, Nicolae V.; Vázquez Tato, José; Obiols-Rabasa, Marc; Sennato, Simona; Olsson, Ulf; Schillén, Karin; Galantini, Luciano

The introduction of a mannose residue on carbon 3 of lithocholic acid gives rise to an asymmetric and rigid bolaamphiphilic molecule, which self-assembles in water to form elongated tubular aggregates with an outer diameter of about 20 nm. These tubular structures display a temporal evolution, where the average tube diameter…

Customer publications

The Effect of Protein PEGylation on Physical Stability in Liquid Formulation
Holm, Louise Stenstrup; Mcumber, Aaron; Rasmussen, Jakob Ewald; Obiols-Rabasa, Marc; Thulstrup, Peter W.; Kasimova, Marina R.; Randolph, Theodore W.; van de Weert, Marco

The presence of micron aggregates in protein formulations has recently attracted increased interest from regulatory authorities, industry, and academia because of the potential undesired side effects of their presence. In this study, we characterized the micron aggregate formation of hen egg-white lysozyme (Lyz) and its diPEGylated (5 kDa) analog as…

Customer publications

On the self-assembly of a tryptophan labeled deoxycholic acid
Travaglini, Leana; Gubitosi, Marta; Gregorio, Maria Chiara di; Pavel, Nicolae Viorel; D’Annibale, Andrea; Giustini, Mauro; Tellini, Victor Hugo Soto; Tato, José Vázquez; Obiols-Rabasa, Marc; Bayati, Solmaz; Galantini, Luciano

Self-assembly of peptides and bile acids has been widely investigated because of their biological role and their potential as a tool for the preparation of nanostructured biomaterials. We herein report both the synthesis and the self-association behavior of a compound that combines the aggregation properties of bile acid- and amino…

Customer publications

A designer peptide as a template for growing Au nanoclusters
la Rica, Robertoáde; ThomasáPashuck, E.; others

A peptide was designed to generate a sub-nanometric template that guides the growth of fluorescent gold nanoclusters. The peptide was endorsed with nucleating moieties and a three-dimensional structure that arrests the growth of ultrasmall nanoparticles. The nanoclusters are not cytotoxic and can be found in the cytosol of…

Application Characteristic dimension Characterization Customer publications Liquid crystals Material Oil & gas SAXS Self-assembled material Technique

Study of liquid-phase molecular packing interactions and morphology of fatty acid methyl esters (biodiesel)
Berman, Paula; Meiri, Nitzan; Colnago, Luiz A.; Moraes, Tiago B.; Linder, Charles; Levi, Ofer; Parmet, Yisrael; Saunders, Michael; Wiesman, Zeev

Biotechnology for Biofuels, 2015, vol 8, 1, pp. 12DOI:10.1186/s13068-014-0194-7AbstractPMID: 25688289Visit the full articleBack to the overview

Customer publications

Chiroptical Activity in Silver Cholate Nanostructures Induced by the Formation of Nanoparticle Assemblies
Layani, Muriel E.; Ben Moshe, Assaf; Varenik, Maxim; Regev, Oren; Zhang, Hui; Govorov, Alexander O.; Markovich, Gil

We report on an interesting mechanism of inducing chiroptical response at plasmonic silver nanoparticles (NPs) through the formation of plasmonic hot spots in small metal-NP?chiral-surfactant assemblies. Circular dichroism (CD) was measured at the surface plasmon resonance of cholate-coated silver nanostructures (AgCT) in the visible region of the spectrum. Low temperature…

Customer publications

Grazing incidence X-ray scattering showing self-organized regular three-dimensional nanopillar-like structures
Paul, Amitesh; Paul, Neelima

Self-organized Co nanoclusters are grown by sequential sputtering in the form of nanopillars separated by Au. Using grazing incidence small angle X-ray scattering from these nanopillar-like structures, we could observe a distinct signature of regular near-neighbor ordering of the first order, commonly observed only in patterned nanostructures. The magnetic response…



Source	Microfocus sealed tube: Cu, 30W/30µm, point focus. ( DIN EN 12543-5) Polychromatic Copper microfocus source for imaging a field of view of 14 mm x 14 mm. MetalJet D2+ 70 kV source (Ga). Motorized Dual or Triple source (Cu/Mo/Cr/Ga).
Optics	Patented 3D single reflection multilayer optics.
Detector	In-vacuum motorized 3-axis detectors for 2D SAXS/WAXS (Q-Xoom): --Eiger2 R (500K, 1M or 4M) hybrid photon counting detectors Optional WAXS detectors for SWAXS: --Motorized 3-axis Eiger2 R 500K hybrid photon counting detector
Sample chamber	Large vacuum chamber. On-axis sample viewing (parallax free). Attachments for operation of sample in air. XL station: Dedicated air-space tailored for accommodating extra-large sample environments
Key features	Clean Beam technology: High flux and low background beamline. Beamstopless measurement: SAXS acquisition continuously without any beamstop. Q-Xoom: Automatic change of measurement configuration over all instrument Q-range with no movement of sample measuring position and automatic callibations. Virtual detector mode: Surfaces of detection > 200 mm x 200 mm.
Measurement capability	Nanoparticles size up to 250 nm, 500 nm or 900 nm in diameter depending on the Xeuss model. Nanoparticles size up to > 2.5 microns with optional motorized Bonse-Hart module for automatic sequential USAXS/SAXS/WAXS measurements. Nanoparticles sizes down to 50 nm can be measured using the AuX source on spot sizes of 150 microns and with measuring times in the range of a minute or less. Scattering measurements up to 2Ɵ > 70° with Q-Xoom. Qmax > 49 nm-1 The X-ray imaging option extends the range of structural information from Å to mm while the Dark-field and Phase-contrast imaging (DF-PCI) option reveals nanostructure differences, interfaces and orientation.
Sample environment	Standard holders (multi-samples): solids, capillaries, powders and gels. Flowcells for liquids: --- Low noise flowcell --- Capillary flowcell --- Automatic Sample Changer --- BioCube measuring cell with dynamic monitoring (compatible with pipetting robot) Temperature stages: --- Multi-purpose X-Ray temperature stage (-30°C to 150°C) --- High temperature sample stage (-150°C to 350°C) --- Extended high-temperature sample stage (ambient to 1000°C) Mechanical stress stages: --- Tensile Stage (0 N to 600N). --- Couette stage for shear SAXS. --- Cryo-Shear Cell (-50°C to +450°C). Humidity stage (5% to 95% humidity at temperatures ranging from 10°C to 70°C). Temperature compatible advanced GISAXS stage with incidence angle control and additional rotation for texture or in-plane scattering analysis Other sample stages available under request
Software	Comprehensive Software Suite: Xplore: command and control software for intuitive data acquisition with automatic data reduction in absolute units and live data display providing also real-time equipment monitoring and scripting capabilities from any programming language. XSACT Pro (X-ray Scattering Analysis and Calculation Tool) for data analysis and interpretation including unique modules for particle shape determination through direct modeling or AI-powered classification.
General parameters	Models & Footprint: Xeuss Pro C (1 m x 3.5 m), HR (1 m x 5 m), UHR (1 m x 8 m). Maximum power consumption: 4.8kW (single phase power)


Mirror type	Figure	Optic efficiency (calculated over mirror length for 70µm source)
Standard Montel mirrors		Eff = 42%
Xenocs FOX 3D mirrors		Eff = 62%


Model	Beam size at focus (mm) with 60 µm source	Divergence (mrad)	Typical application
FOX 3D Cu 14-39 (♦)	0.19 x 0.19	5.4	Protein crystallography (♦) Powder diffraction
FOX 3D Cu 12-53	0.3 x 0.3	3	Protein crystallography (Long Unit Cells) Powder diffraction
FOX 3D Mo 10-31	0.13 x 0.13	4	Small molecule crystallography High pressure diffraction
FOX 3D Ag 10-30	0.13 x 0.13	3	Small molecule crystallography High pressure diffraction
FOX 3D Cr 8-30	0.20 x 0.20	6	Protein crystallography (S-SAD) Stress analysis
FOX 1D Cu 12-53	0.3	3	XRD, Powder Diffraction


Model	Beam size at focus (mm) with 60 µm source	Divergence (mrad)	Typical application
FOX 2D Mo 25-25 (♦)	0.08 x 0.08	5	Small mollecule crystallography High pressure crystallography
FOX 2D Cu 25-25 (♦)	0.08 x 0.08	5.3	Protein crystallography (♦) Micro Diffraction, Reflectometry
FOX 3D Cu 21-21 HC (♦)	0.08 x 0.08	70 x 35	Rapid x-ray Reflectometry (full beam) Scanning x-ray Reflectometry (with slit) Micro-XRF
FOX 3D Cu 28-10	0.04 x 0.04	17	Stress Analysis, Micro-diffraction, Micro-XRF
FOX 3D Cr 30-8	0.04 x 0.04	17	Stress Analysis, Micro-diffraction, Micro-XRF


Model	Beam size at focus (mm) with 60 µm source	Divergence (mrad)	Typical application
FOX 2D Cu 12-INF (♦)	1.2 x 1.2	1	Small angle x-ray scattering (♦) High resolution x-ray diffraction (♦) Surface scattering (♦) Thin film analysis (reflectometry stress) (♦) Microdiffraction on synchrotron (♦)
FOX 2D Mo 25-INF (♦)	0.85 x 1.3	0.5	Small angle x-ray scattering High resolution x-ray diffraction Surface scattering
FOX 2D 12-60 L (♦)	0.18 x 0.2	0.5 x 2	High resolution diffraction Small sample analysis
FOX 1D Cu 12-INF (♦)	1.2	0.8	High resolution x-ray diffraction, Powder diffraction, Reflectometry, Small angle x-ray scattering


Model	Beam size at focus (µm)	Divergence (mrad)	Flux (ph/sec)	Typical application
GeniX 3D Cu High Flux *	< 190	6	> 400 x 10⁶	Protein crystallography Micro stress analysis Powder diffraction
GeniX 3D Mo High Flux	< 130	5	> 25 x 10⁶	Small Molecule crystallography High pressure
GeniX 3D Cr High Flux	< 190	6	> 300 x 10⁶	Stress Analysis
GeniX 3D Cu High Convergence *	60	70 x 35	> 400 x 10⁶	Rapid X-ray Reflectometry (full beam) Scanning x-ray reflectometry (with slit) Micro x-ray fluorescence Small spot diffraction on thin film
GeniX 3D Cu Low Convergence *	< 250	3	> 120 x 10⁶	Small Angle X-ray Scattering Protein Crystallography


Model	Detailed specifications
Synchrotron scatterless slits (♦)	Please contact us for any technical information Discover what our customers say about it!
X-ray alignment camera (♦)	Please contact us for any technical information
Pin Diode detector (♦)	Please contact us for any technical information
Beam stop with integrated Pin Diode	Please contact us for any technical information


BioXolver configurations	BioXolver	BioXolver L
Utilisation	Research on biological macro-molecules in solution	Research on biological macro-molecules, including large complexes and interactions
X-ray source	Microfocus GeniX 3D, MetalJet, add-on to RAG	0.02-0.3nm
Optic	Aspheric single reflection multilayer optic
Collimation	Motorized scatterless point collimation	variable
Sample cell	Xenocs thermalized BioCube flow-cell with camera and pump
Sample handling	Pipetting robot with disposable tips
Sample capacity	Up to 2 x 96 well plates (thermalized)
Minimum sample volume	Down to 5 μL
Cleaning	Automated cleaning and drying with three cleaning fluids
Detector	Dectris in-vacuum hybrid pixel photon counting detector
Detector configuration	Fixed detector distance	Variable detector distance
Data reduction and analysis software	RAW and ATSAS
Q-range and typical protein size*	0.006 Å-1 / MW < 200 MDa / Rg < 135 Å	0.003 Å-1 / MW < 1.5 GDa / Rg < 270 Å
Overall length	3.2 m (2.7 m as add-on to existing source)	4.2 m
Options	UV-Vis, separate temperature control for sample trays and BioCube	UV-Vis, separate temperature control for sample trays and BioCube
Services	Installation, training, hot-line, maintenance contract	Installation, training, hot-line, maintenance contract



Source and optics	Microfocus sealed tube: Cu, 30W/30µm, point focus. ( DIN EN 12543-5) Patented 2D single reflection multilayer optics.
Detector	Dectris Pilatus 3 hybrid photon counting detectors. Two fixed detectors for continuously and simultaneously. SAXS and WAXS acquisition up to 2θ=60°.
Beam Path	Windowless beam path entirely under vacuum from beam delivery system to detector sensor
Key features	Clean Beam technology: high flux and low background beamline. Beamstopless measurement: SAXS acquisition continuously without any beamstop. Virtual detector mode: > 200° azimuth coverage with rotation of sample.
Measurement capability	Nanoparticles size up to 250 nm in diameter.
Sample environment	Standard holders: solids, capillaries, powders. Sample holders for powders and gels. Flow cells for liquids: --- Low noise flow cell --- Capillary flow cell Automatic Sample Changer Temperature stages: --- Multi-purpose X-Ray Temperature Stage (-20°C to 150°C) --- High temperature sample stage (-150°C to 350°C) --- Extended high temperature sample stage (amb - 700°C) Tensile Stage (0-200N). GiSAXS stage compatible with high temperature sample stage. Custom stages on request.
Software	Acquisition software with automatic data reduction in absolute units and live data display. XSACT (X-ray Scattering Analysis and Calculation Tool) for data analysis and interpretation.
General parameters	Fooprint: < 1x1 m². Weight: ~ 520 kg. Maximum power consumption: < 2000 W (single phase power). Self-contained: no external fluids required.
Warranty	Two years warranty and three years on X ray source.


Element of interest	Reference
O, F, Na, Mg, Al, Si, P, S	XAN-1
Nitrogen	XAN-2
Carbon	XAN-3
Boron	XAN-4
Mg, Al , Si	XAN-5
Be	XAN-6

Customer publications

Useful links

X-ray Optics

Xenocs proposes a wide range of optics for both XRD and XRF applications.

2D-3D Beam shaping X-ray Optics

High Flux Optics

Small Spot Optics

Collimating Optics

1D Beam shaping X-ray Optics

High Flux Optics

Collimating Optics

X-ray beam delivery system

The combination of an innovative design and the FOX3D single reflection optics makes the GeniX3D a unique solution on the market.

High flux solutions

Small spot solutions

X-ray beam accessories

In addition to our high quality optical components and beam delivery systems, we propose accessories to optimize the performance of your setup.

Xeuss 3.0 specifications

Plenty of space for sample environment

With its large chamber and concept ensuring stationary sample during measurement, the Xeuss 3.0 is the perfect X-ray scattering platform instrument for now and the future.

Ultimate performance

The Xeuss 3.0 offers a maximum flexibility of measurement configurations to get the best possible data quality on any type of sample.

Xeuss 3.0 shown with Q-Xoom transparency to illustrate the moving detector.

Maximum flexibility

Provide structural tools to a large community of users with full remote operation capability and access to a unique range of length-scales.

Q-Xoom – enjoy the flexibility of full-range computer-controlled detector travel

Measure probe lengths as large as 4.5 microns together with nanoscale information

Optimize your experiment to any type of sample (absorption, fluorescence, characteristic dimensions)

Simultaneously from atomic to nanoscale

No need to repeat SAXS and WAXS measurement, you get two measurements within one exposure.

Extensive and powerful suite of data analysis algorithms

XSACT includes an extensive array of analysis modules for sample characterization of size, structure and texture of multiple types of materials including nanoparticles and polymers.

Low cost of ownership

Get nanoscale information on a day to day basis to improve your material process or validate your research models.

Accurate and high dynamic range measurement

Focus your attention on science and data interpretation, you can rely on your data.

Publication quality figure presentation

XSACT is a time saver as it bundles all the tools to create publication-ready figures without the need for another visualization software.

High quality SAXS data in the lab

Measurements previously only possible at synchrotron facilities can now be done in the lab.

High throughput measurements and results

Full automation from sample to final results on up to 192 samples.

In-line SEC and UV-Vis combined with SAXS – also in the lab!

Obtain the structure of small and large protein species through in-line gel filtration

BioXolver specifications

*Theoretical limit assuming globular proteins

智能工作流程和用户体验

使用XSACT可使用户用最小投入获得数据解析结果。

样品 – 测试 – 分析 – 报告 – 节约时间

智能工作流程和用户体验

使用XSACT可使用户用最小投入获得数据解析结果。

样品 – 测试 – 分析 – 报告 – 节约时间

在实验室中得到高质量SAXS数据

以前的测试只能在同步辐射完成，现在也可在实验室中实现。

SAXS可以和在线SEC、UV-Vis联用 – 在实验室也可以实现!

通过内置胶体过滤获取不同尺寸蛋白质种类的结构

低样品消耗量

低至5μL。目前是市场上最低的样品消耗量。

内容广泛、性能强大的数据分析算法软件

XSACT包括一系列的广泛的分析模块，用于对多种类型的材料包括纳米颗粒和聚合物的尺寸、结构和织构进行样品表征等。

同时从原子级别到纳米尺寸

无需重复SAXS和WAXS测试，您可以在一次曝光内同时得到所有测量结果。

高精度高动态范围测量

获取可信赖的数据，将您的注意力集中在科学和数据解释上。

更高的灵活性

为广大用户群体提供全远程自动操作的、具备表征超大纳米尺度范围的独特工具。

Q-Xoom–享受全范围计算机控制探测器行程的灵活性

测量尺度可达4.5微米，并获取纳米尺度信息

对任何种类样品(吸收，荧光，特征尺寸)的实验进行优化

高性能

Xeuss 3.0实验装置具备最大的灵活性，用于测试各种样品并尽可能获取最佳质量的数据。

上图显示了通过玻璃窗，可以观察到Xeuss3.0的Q-Xoom真空腔内探测器的移动。

Nano-inXider specifications

BioXolver specifications

*Theoretical limit assuming globular proteins

Nano-inXider specifications

Xeuss 3.0 specifications

样品空间大

Xeuss 3.0的超大样品腔有利于固定实验过程中的样品，这是目前以至今后的理想的X射线散射平台仪器。