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(Natural) polymersApplicationCharacterizationCompositesCustomer publicationsMaterialOtherPolymer researchSAXSTechnique

Tunable Fluorophobic Effect Determines Nanoparticle Dispersion in Homopolymers and Block Polymers

Marsh, Zachary M.; Blom, Douglas A.; Stefik, Morgan

The controlled placement of nanoparticles (NPs) within homopolymers and block polymers is of broad interest for functional nanomaterials. This manuscript focuses on small molecule-stabilized NPs that bring a large fraction of functionality. For such NP mixtures with block polymers, the overwhelming focus to date has been the use of attractive…
sergio.rodrigues@xenocs.com
27 January 2020
(Natural) polymersApplicationCharacterizationCustomer publicationsGIWAXSMaterialOtherRenewable energySurface structure and patternsTechnique

Efficient Anti-solvent-free Spin-Coated and Printed Sn-Perovskite Solar Cells with Crystal-Based Precursor Solutions

He, Lintao; Gu, Hao; Liu, Xiaolong; Li, Pengwei; Dang, Yangyang; Liang, Chao; Ono, Luis K.; Qi, Yabing; Tao, Xutang

Tin-based perovskite solar cells (PSCs), with more consummate optical band gaps, lower exciton-binding energies, and higher charge-carrier mobility, have not attracted tremendous research efforts compared with the lead-based ones that have a record power conversion efficiency (PCE) of 24.2%. The major challenges for Sn-based research are significantly low open-circuit voltage,…
sergio.rodrigues@xenocs.com
27 January 2020
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…
sergio.rodrigues@xenocs.com
27 January 2020
ApplicationCharacterizationCustomer publicationsGISAXSInorganic materialsMaterialMetalsOtherParticlesSurface structure and patternsTechnique

Ultrathin Homogenous AuNP Monolayers as Tunable Functional Substrates for Surface-Assisted Laser Desorption/Ionization of Small Biomolecules

Liu, Zhen; Zhang, Peng; Kister, Thomas; Kraus, Tobias; Volmer, Dietrich A.

A series of ultrathin, homogenous gold nanoparticle (AuNP) substrates for surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) were prepared using a simple air/water interface approach. These SALDI substrates enabled soft ionization and provided significant improvements in terms of signal intensities and reduced background levels in comparison to other AuNP morphologies for…
sergio.rodrigues@xenocs.com
27 January 2020
ApplicationCharacterizationCustomer publicationsOtherOtherSAXSTechniqueWAXS

Time resolved alkali silicate decondensation by sodium hydroxide solution

Dupuis, Romain; Rodrigues, Donatien Gomes; Champenois, Jean-Baptiste; Pellenq, Roland; Poulesquen, Arnaud

Silica is by far the chemical compound the most widespread and used around the world: as a raw product in the buildings and roads industry, as concrete, or as a processed product in the manufacture of glass, ceramics or zeolites. In alkali silicate solutions – often used to synthesize those…
sergio.rodrigues@xenocs.com
27 January 2020
ApplicationCharacterizationCustomer publicationsOtherRenewable energySAXSSizeTechniqueWAXS

Local mobility in electrochemically inactive sodium in hard carbon anodes after the first cycle

Jensen, Anders C. S.; Olsson, Emilia; Au, Heather; Alptekin, Hande; Yang, Zhengqiang; Cottrell, Stephen; Yokoyama, Koji; Cai, Qiong; Titirici, Maria-Magdalena; Drew, Alan J.

Sodium ion batteries are a promising alternative to current lithium ion battery technology, providing relatively high capacity and good cycling stability at low cost. Hard carbons are today the anodes of choice but they suffer from poor rate performance and low initial coulombic efficiency. To improve the understanding of the…
sergio.rodrigues@xenocs.com
27 January 2020
(Natural) polymersApplicationCharacterizationCustomer publicationsFibersMaterialOrientation analysisOtherPolymer researchSAXSTechnique

Microstructure and properties of polyacrylonitrile based carbon fibers

Lu, Junshan; Li, Weiwei; Kang, Hongliang; Feng, Libang; Xu, Jian; Liu, Ruigang

The microstructure of polyacrylonitrile (PAN)-based carbon fibers with different mechanical properties was investigated. It was found that the tensile strength of the PAN-based carbon fibers generally decrease with the increase in the modulus. The properties of PAN-based carbon fiber are mainly controlled by the microstructure and microvoids. The increase in…
sergio.rodrigues@xenocs.com
27 January 2020
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…
sergio.rodrigues@xenocs.com
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…
sergio.rodrigues@xenocs.com
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…
sergio.rodrigues@xenocs.com
27 January 2020