A four-component organogel based on orthogonal chemical interactions

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Crystalline and Soft Materials Based on Dative Boron-Nitrogen Bonds

Nicolas Luisier

The thesis describes the utilization of dative boron-nitrogen bond is used for the construction of new materials. In chapter 2.1, the synthesis of new organogels based on bisimidazolyl ligands and diboronate esters is described. Gels with a critical gel co ...

EPFL2016

Castles fall from inside: Evidence for dominant internal photo-catalytic mechanisms during treatment of Saccharomyces cerevisiae by photo-Fenton at near-neutral pH

César Pulgarin, Sami Rtimi, Stefanos Giannakis, Cristina del Socorro Lonfat

In this work, the antimicrobial effects of the photo-Fenton process on yeast cells were tested (Saccharomyces cerevisiae), an essential eukaryotic unicellular model of living cells. Near-neutral pH was used in all studies, while iron sulfate and iron citra ...

Elsevier2016

Supramolecular gels based on boronate esters and imidazolyl donors

Rosario Scopelliti, Kay Severin, Nicolas Luisier

Dative boron–nitrogen bonds can be used for the controlled assembly of boronate esters and N-donor ligands. So far, most investigations have focused on crystalline assemblies. In contrast, there are very few reports about soft materials based on dative B–N ...

2016

Design of Self-Healing Supramolecular Rubbers with a Tunable Number of Chemical Cross-Links

Véronique Michaud, Federica Sordo

Supramolecular rubbers incorporating a large number of physical cross-links through cooperative hydrogen bonds display high self-healing properties but limited solvent and creep resistance due to the lack of chemical cross-links. Increasing both chemical c ...

American Chemical Society2015

Influence of silica fume on the microstructure of cement pastes: New insights from H-1 NMR relaxometry

Karen Scrivener, Arnaud Charles Albert Muller

H-1 NMR has been used to characterise white Portland cement paste incorporating 10 wt.% of silica fume. Samples were measured sealed throughout the hydration without sample drying. Paste compositions and C-S-H characteristics are calculated based on H-1 NM ...

Pergamon-Elsevier Science Ltd2015

The Influence of Arginine on the Response of Enamel Matrix Derivative (EMD) Proteins to Thermal Stress: Towards Improving the Stability of EMD-Based Products

Jan-Anders Edvin Maansson, John Christopher Plummer, Matteo Gregorio Modesto Marascio, Raffaele Mezzenga, Alessandra Apicella

In a current procedure for periodontal tissue regeneration, enamel matrix derivative (EMD), which is the active component, is mixed with a propylene glycol alginate (PGA) gel carrier and applied directly to the periodontal defect. Exposure of EMD to physio ...

Public Library Science2015

New analytical tools combining gel electrophoresis and mass spectrometry

Elena Tobolkina

Proteomics has been one of the main projects challenging biological and analytical chemists for many years. The separation, identification and quantification of all the proteins expressed within biological systems remain the main objectives of proteomics. ...

EPFL2014

Coupling Isoelectric Focusing Gel Electrophoresis to Mass Spectrometry by Electrostatic Spray Ionisation

Hubert Girault, Liang Qiao, Elena Tobolkina

Gel electrophoresis has been used for decades as a high-resolution separation technique for proteins and protein isomers, but limited in the coupling with MS because of low throughput and poor automaticity compared with LC-MS. In this work, we have develop ...

American Chemical Society2013

Densification of C-S-H Measured by H-1 NMR Relaxometry

Karen Scrivener, Arnaud Charles Albert Muller

The nanoscale morphology of, and pore water interactions in, calcium silicate hydrate (C-S-H), the active component of cement, remain uncertain. H-1 nuclear magnetic resonance (NMR) can fully characterize the nanoporosity of C-S-H in as-prepared material w ...

Amer Chemical Soc2013