0000000000298175

AUTHOR

Georges J. M. Formon

showing 2 related works from this author

Magnetic Control over the Fractal Dimension of Supramolecular Rod Networks

2021

<p>Controlling supramolecular polymerization is of fundamental importance to create advanced materials and devices. Here we show that the thermodynamic equilibrium of Gd<sup>3+</sup>-bearing supramolecular rod networks is shifted reversibly at room temperature in a static magnetic field of up to 2 T. Our approach opens opportunities to control the structure formation of other supramolecular or coordination polymers that contain paramagnetic ions.</p>

[PHYS]Physics [physics]chemistry.chemical_classificationMagnetic energy010405 organic chemistryChemistryThermodynamic equilibriumSupramolecular chemistryAucunGeneral ChemistryPolymer010402 general chemistryMagnetostatics01 natural sciencesBiochemistryCatalysis0104 chemical sciencesParamagnetismColloid and Surface ChemistryPolymerizationChemical physicsSelf-assemblyComputingMilieux_MISCELLANEOUS
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Surface-Assisted Self-Assembly of a Hydrogel by Proton Diffusion

2018

International audience; Controlling supramolecular growth at solid surfaces is of great importance to expand the scope of supramolecular materials. Here we describe a dendritic benzene-1,3,5-tricarboxamide peptide conjugate whose assembly can be triggered by a pH jump. Stopped flow kinetics and mathematical modeling provide a quantitative understanding of the nucleation, elongation, and fragmentation behavior in solution. To assemble the molecule at a solid-liquid interface, we use proton diffusion from the bulk. The latter needs to be slower than the lag phase of nucleation in order to progressively grow a hydrogel outwards from the surface. Our method of surface-assisted self-assembly is …

Materials scienceKineticsNucleationSupramolecular chemistry02 engineering and technology010402 general chemistry01 natural sciencesCatalysisFragmentation (mass spectrometry)Molecule010405 organic chemistry[CHIM.ORGA]Chemical Sciences/Organic chemistryGeneral MedicineGeneral Chemistry[CHIM.ORGA] Chemical Sciences/Organic chemistry021001 nanoscience & nanotechnology[PHYS.COND.CM-SCM] Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]0104 chemical sciencesChemical engineering[CHIM.OTHE] Chemical Sciences/OtherSelf-healing hydrogelsSelf-assemblyElongation0210 nano-technology[CHIM.OTHE]Chemical Sciences/Other[PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]
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