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ApplicationCharacterizationCustomer publicationsMaterialOrientation analysisOtherProteins & DNA/RNAStructural biologyTechniqueTemperatureWAXS

Synthesis of Anthracene Conjugates of Truncated Antifreeze Protein Sequences: Effect of the End Group and Photocontrolled Dimerization on Ice Recrystallization Inhibition Activity

Graham, Ben; Fayter, Alice E. R.; Gibson, Matthew I.

Biomacromolecular antifreezes distinguish ice from water, function by binding to specific planes of ice, and could have many applications from cryobiology to aerospace where ice is a problem. In biology, antifreeze protein (AFP) activity is regulated by protein expression levels via temperature and light-regulated expression systems, but in the laboratory…
27 January 2020
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialOtherPhase analysisPolymer researchSAXSSelf-assembled materialTechniqueTemperatureWAXS

Periodic Polyethylene Sulfonates from Polyesterification: Bulk and Nanoparticle Morphologies and Ionic Conductivities

Rank, Christina; Yan, Lu; Mecking, Stefan; Winey, Karen I.

A series of polyethylene-like ionomers with periodic sulfonate groups were synthesized by polyesterification of octatetracontane-1,48-diol and tetrabutylammonium dimethyl sulfosuccinate. Optional cation exchange in aqueous dispersions replaced the NBu4+ counterions for Na+ or Cs+. The defined periodic microstructure of the polymers leads to the formation of layered structures in bulk and…
27 January 2020
(Natural) polymersApplicationCharacterizationCompositesCustomer publicationsFractal dimensionMaterialOtherOtherPolymer researchSAXSSizeTechnique

Phase separation and performance of polyethersulfone/cellulose nanocrystals membranes

Lessan, Fatemeh; Karimi, Mohammad; Bañuelos, Jose Leobardo; Foudazi, Reza

We investigate the effect of cellulose nanocrystals (CNC) as a hydrophilic nanoparticle on the characteristics of polyethersulfone (PES) based membranes. The membranes are fabricated using typical nonsolvent induced phase separation (NIPS) method. We study the radius of gyration and aggregation of PES in dimethylformamide in the presence of CNC, the…
27 January 2020
ApplicationCharacterizationCustomer publicationsMaterialOtherProteins & DNA/RNASAXSShapeStructural biologyTechnique

Distinguishing Between Monomeric scFv and Diabody in Solution Using Light and Small Angle X-ray Scattering

Lüdel, Frank; Bufe, Sandra; Bleymüller, Willem M.; de Jonge, Hugo; Iamele, Luisa; Niemann, Hartmut H.; Hellweg, Thomas

Depending on the linker length between the V H and the V L domain, single-chain Fv (scFv) antibody fragments form monomers, dimers (diabodies) or higher oligomers. We aimed at generating a diabody of the anti-MET antibody 3H3 to use it as crystallization chaperone to promote crystallization of the MET ectodomain…
27 January 2020
ApplicationCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialOtherSAXSTechniqueWAXS

Elaboration of microporous CeO2 thin layers having nanocrystallites network controlled by Pluronic P123: Impact of key experimental parameters

Lu, Zijie; Rébiscoul, Diane; Causse, Jeremy; le Goff, Xavier; Mollard, Nicolas; Deschanels, Xavier

Microporous ceria thin films having nanocrystallites network were synthesized by evaporation-induced self-assembly process, using P123 amphiphilic copolymer as structure-directing agent. The impact of key experimental parameters, i.e., the sol ageing, the relative humidity (RH), the thermal treatment, on the thin layer elaboration were investigated. The results show that the organization…
27 January 2020
ApplicationCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialOtherSAXSTechnique

Ibuprofen loading into mesoporous silica nanoparticles using Co-Spray drying: A multi-scale study

Ruffel, Lucas; Soulié, Jérémy; Coppel, Yannick; Roblin, Pierre; Brouillet, Fabien; Frances, Christine; Tourbin, Mallorie

Mesoporous Silica Nanoparticles (MSN) are used in an increasing number of applications in nanomedicine. Their synthesis and external/internal functionalization have been extensively studied as well as their biological properties. Nevertheless, the conventional drug loading processes of MSN (such as impregnation), do not enable sufficient efficiency and are difficult to consider…
27 January 2020
ApplicationCharacteristic dimensionCharacterizationCustomer publicationsGISAXSMaterialOrientation analysisOtherOtherPorous materialSurface structure and patternsTechnique

In-Depth Study of Coating Multimodal Porosity Using Ellipsometry Porosimetry in Desorption Scanning Mode

Loizillon, Jérôme; Baumgartner, Bettina; Sinturel, Christophe; Abbarchi, Marco; Lendl, Bernhard; Grosso, David

Ellipsometry porosimetry provides full adsorption/desorption isotherms and is among the most accurate techniques to probe porosity in thin films. Here we address a novel technique based on desorption scanning for a precise assessment of the porosity features revealing the size distribution of interconnections between the various populations of pores in…
27 January 2020
ApplicationCharacterizationCustomer publicationsGIWAXSInorganic materialMaterialOrientation analysisOtherRenewable energySurface structure and patternsTechniqueThin films

Fine Multi-Phase Alignments in 2D Perovskite Solar Cells with Efficiency over 17% via Slow Post-Annealing

Wu, Guangbao; Li, Xing; Zhou, Jiyu; Zhang, Jianqi; Zhang, Xuning; Leng, Xuanye; Wang, Peijun; Chen, Ming; Zhang, Dongyang; Zhao, Kui; Liu, Shengzhong (Frank); Zhou, Huiqiong; Zhang, Yuan

Layered Ruddlesden–Popper (RP) phase (2D) halide perovskites have attracted tremendous attention due to the wide tunability on their optoelectronic properties and excellent robustness in photovoltaic devices. However, charge extraction/transport and ultimate power conversion efficiency (PCE) in 2D perovskite solar cells (PSCs) are still limited by the non-eliminable quantum well effect.…
27 January 2020
ApplicationCharacterizationCustomer publicationsMaterialOtherProteins & DNA/RNASAXSShapeSizeStructural biologyTechnique

Antigenic and physicochemical characterization of Hepatitis B surface protein under extreme temperature and pH conditions

Lopes, J. L. S.; Oliveira, D. C. A.; Utescher, C. L. A.; Quintilio, W.; Tenório, E. C. N.; Oliveira, C. L. P.; Fantini, M. C. A.; Rasmussen, M. K.; Bordallo, H. N.; Sant’Anna, O. A.; Botosso, V. F.

Hepatitis B virus causes acute and chronic infections in millions of people worldwide and, since 1982, a vaccine with 95% effectiveness has been available for immunization. The main component of the recombinant hepatitis B vaccine is the surface antigen protein (HBsAg). In this work, the effect of pH, ionic strength…
27 January 2020
(Natural) polymersApplicationCharacterizationCrystalline fractionCustomer publicationsMaterialOrientation analysisOtherPhase analysisPolymer researchSAXSSizeTechniqueTemperature

Structural evolution of flow-oriented high density polyethylene upon heating: In situ SAXS and WAXD studies

Liao, Tao; Zhao, Xintong; Yang, Xiao; Coates, Phil; Whiteside, Ben; Jiang, Zhiyong; Men, Yongfeng

The structural evolution of micro-injection molded high density polyethylene (HDPE) at the molecular and lamellar levels was investigated as a function of temperature during heating process using wide angle X-ray diffraction (WAXD) and small angle X-ray scattering (SAXS) techniques. The molded sample exhibits a peculiar multilayer structure of skin and…
27 January 2020