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(Hydro)gels(Natural) polymersApplicationCharacterizationCustomer publicationsFibersMaterialOrientation analysisOtherSAXSTechnique

Strong, Water-Stable Ionic Cable from Bio-Hydrogel

Kong, Weiqing; Li, Tian; Chen, Chaoji; Chen, Gegu; Brozena, Alexandra H.; Liu, Dapeng; Liu, Yang; Wang, Chengwei; Gan, Wentao; Wang, Sha; He, Shuaiming; Hu, Liangbing

Nanofluids have attracted much attention due to their various applications in energy storage, water desalination, and ionic circuits. However, the practical applications of the existing ionic conductors are limited due to their poor mechanical strength and stability in water. Here, inspired by nature, we develop a mechanically robust and water-stable…
(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…
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…
ApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialOtherOtherPorous materialSAXSTechnique

Adsorption of organic pollutants by amine functionalized mesoporous silica in aqueous solution. Effects of pH, ionic strength and some consequences of APTES stability

Otalvaro, Julian Ortiz; Avena, Marcelo; Brigante, Maximiliano

A mesoporous silica with MCM-41 type pore array was synthesized by hydrothermal method and then was functionalized with known amounts of 3-aminopropyltriethoxysilane (APTES) in order to study the selective adsorption towards several species/pollutants. Antibiotics doxycycline hydrochloride (DC) and norfloxacin (NFX), the dye methyl orange(MO) and the pesticide 2,4-dichlorophenoxyacetic acid…
ApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialOtherPorous materialSAXSTechnique

Pressure-Driven Solvent Transport and Complex Ion Permeation through Graphene Oxide Membranes

Wang, Kai; Ausri, Irfani R.; Chu, Kyle A.; Seddon, Annela; Tang, Xiaowu (Shirley)

In this paper, an in-depth investigation of three graphene oxide (GO) based membranes—pure GO, Al3+ intercalated GO (Al-GO), and poly(ethylene glycol) (PEG) modified GO (PEG-GO)—is presented. Both Al-GO and PEG-GO membranes have wider interlayer d-spacing compared to pure GO, and the d-spacing size correlates well to the cross-membrane water flux…
(Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsFibersMaterialOtherPhase analysisSAXSTechniqueWAXS

Morphology and ionic conductivity relationship in silk/cellulose biocomposites

Blessing, Bailey; Trout, Cory; Morales, Abneris; Rybacki, Karleena; Love, Stacy A.; Lamoureux, Guillaume; O’Malley, Sean M.; Hu, Xiao; Cruz, David Salas-de la

The relationship between morphology and the ionic conductivity of polysaccharide–protein bio-electrolyte membranes is explored in this study. Structural proteins and polysaccharides form hydrophobic and electrostatic interactions, and the resulting matrices can exhibit novel and useful properties. However, transforming these natural biomacromolecules from their native state to a more usable form…
(Hydro)gelsApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialOtherPhase analysisSAXSTechniqueWAXS

Wet spinning and radial self-assembly of a carbohydrate low molecular weight gelator into well organized hydrogel filaments

Chalard, Anaïs; Joseph, Pierre; Souleille, Sandrine; Lonetti, Barbara; Saffon-Merceron, Nathalie; Loubinoux, Isabelle; Vaysse, Laurence; Malaquin, Laurent; Fitremann, Juliette

In this work, we describe how a simple single low molecular weight gelator (LMWG) molecule – N-heptyl-D-galactonamide, which is easy to produce at the gram scale – is spun into gel filaments by a wet spinning process based on solvent exchange. A solution of the gelator in DMSO is injected…
(Natural) polymersApplicationCharacterizationCustomer publicationsGIWAXSMaterialOtherPhase analysisSurface structure and patternsTechnique

Millimeter-Scale Unipolar Transport in High Sensitivity Organic–Inorganic Semiconductor X-ray Detectors

Jayawardena, K. D. G. Imalka; Thirimanne, Hashini M.; Tedde, Sandro Francesco; Huerdler, Judith E.; Parnell, Andrew J.; Bandara, R. M. Indrachapa; Mills, Christopher A.; Silva, S. Ravi P.

Hybrid inorganic-in-organic semiconductors are an attractive class of materials for optoelectronic applications. Traditionally, the thicknesses of organic semiconductors are kept below 1 μm due to poor charge transport in such systems. However, recent work suggests that charge carriers in such organic semiconductors can be transported over centimeter length scales opposing…
ApplicationCatalystsCharacteristic dimensionCharacterizationCustomer publicationsMaterialOtherPorous materialSAXSTechnique

Tailoring the Hydrophobicity of Mesoporous Organosilica for Protein Trapping and Supported Catalysis

Osta, Oriana; Bombled, Marianne; Partouche, David; Gallier, Florian; Lubin-Germain, Nadège; Brodie-Linder, Nancy; Alba-Simionesco, Christiane

We propose a method to enhance lysozyme trapping and supported-Copper catalysis when confined in organosilica materials. The direct synthesis presented here allows the control of the silica surface hydrophobicity by uniform introduction of methyl or phenyl groups. As a result, the lysozyme trapping is observed to be 3.2 times more…
ApplicationCharacterizationCustomer publicationsMaterialOtherPhase analysisPorous materialSAXSTechnique

Adsorption of norfloxacin on a hexagonal mesoporous silica: isotherms, kinetics and adsorbent reuse

Otalvaro, Julián Ortiz; Avena, Marcelo; Brigante, Maximiliano

The adsorption of the antibiotic norfloxacin (NFX) on MCM-41 type mesoporous silica has been studied in batch experiments by performing adsorption kinetics and isotherms under different conditions. Regeneration of the adsorbent and reuse studies were also carried out and are discussed. On the one hand, the adsorption is very fast…