Alain Carvalho
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View article: Efficiently doped P3HT and polystyrene blend with porous 3D structure for thermoelectric applications
Efficiently doped P3HT and polystyrene blend with porous 3D structure for thermoelectric applications Open
This study describes a reproducible process for forming highly mesoporous, mechanically robust, and handleable aerogels based on entangled poly(3-hexylthiophene) (P3HT) and syndiotactic polystyrene (sPS) nanofibers for thermoelectric appli…
View article: Experimental and Computational Study of Injectable Iron(III)/Ultrashort Peptide Hydrogels: A Candidate for Ferroptosis‐Induced Treatment of Bacterial Infections
Experimental and Computational Study of Injectable Iron(III)/Ultrashort Peptide Hydrogels: A Candidate for Ferroptosis‐Induced Treatment of Bacterial Infections Open
Injectable hydrogels are promising candidates as local drug delivery platforms for the treatment of infected wounds. Self‐assembled small peptide hydrogels are of interest due to their high biocompatibility, degradability, and ease of synt…
View article: Electron conductive self-assembled hybrid low-molecular weight glycolipid-nanosilver gels
Electron conductive self-assembled hybrid low-molecular weight glycolipid-nanosilver gels Open
Controlled reduction of Ag-coordinated self-assembled glycolipid gel drives the formation of Ag nanowires, keeping the gel state, and responsible of electronic conductivity.
View article: Supported Supramolecular Hydrogel Nanoarchitectonics for Tunable Biocatalytic Flow Activity
Supported Supramolecular Hydrogel Nanoarchitectonics for Tunable Biocatalytic Flow Activity Open
Enzymatically‐active polyelectrolyte multilayers containing n layers of phosphatase (AP n ‐PEM) induce the formation of supported biocatalytic supramolecular hydrogels when brought in contact with the precursor tripeptide Fmoc‐FF p Y (Fmoc…
View article: Tuning the water intrinsic permeability of PEGDA hydrogel membranes by adding free PEG chains of varying molar masses
Tuning the water intrinsic permeability of PEGDA hydrogel membranes by adding free PEG chains of varying molar masses Open
We explore the effect of poly (ethylene glycol) (PEG) molar mass on the intrinsic permeability and structural characteristics of poly (ethylene glycol) diacrylate PEGDA/PEG composite hydrogel membranes. We observe that by varying the PEG c…
View article: Tuning the water intrinsic permeability of PEGDA hydrogel membranes by adding free PEG chains of varying molar masses
Tuning the water intrinsic permeability of PEGDA hydrogel membranes by adding free PEG chains of varying molar masses Open
Controlling water permeability by trapping PEG chains inside PEGDA walls.
View article: Sieving and Clogging in PEG–PEGDA Hydrogel Membranes
Sieving and Clogging in PEG–PEGDA Hydrogel Membranes Open
Hydrogels are promising systems for separation applications due to their structural characteristics (i.e., hydrophilicity and porosity). In our study, we investigate the permeation of suspensions of rigid latex particles of different sizes…
View article: Sieving and clogging in PEG-PEGDA hydrogel membranes
Sieving and clogging in PEG-PEGDA hydrogel membranes Open
Hydrogels are promising systems for separation applications due to their structural characteristics (i.e. hydrophilicity and porosity). In our study, we investigate the permeation of suspensions of rigid latex particles of different sizes …
View article: Highly Synergistic Properties of Multicomponent Hydrogels Thanks to Cooperative Nucleopeptide Assemblies
Highly Synergistic Properties of Multicomponent Hydrogels Thanks to Cooperative Nucleopeptide Assemblies Open
International audience
View article: Tailoring the 3D porous structure of conducting PEDOT:PSS gels <i>via</i> ice-templating
Tailoring the 3D porous structure of conducting PEDOT:PSS gels <i>via</i> ice-templating Open
Well-controlled gelation of fibrillar PEDOT:PSS and growth of ice crystals yield robust anisotropic macroporous materials with a tuned pore size. The honey-comb like structure is at the origin of the low thermal conductivity.
View article: Impact of polymorphism in oleogels of <i>N</i>-palmitoyl-<scp>l</scp>-phenylalanine
Impact of polymorphism in oleogels of <i>N</i>-palmitoyl-<span>l</span>-phenylalanine Open
N -Palmitoyl- l -phenylalanine, a natural compound, forms gels at a few wt% in edible oils. The gels exist in two polymorphic structures and the system exhibits a non-variant gel–gel transition between both forms, in addition to the gel–so…
View article: Thermodynamics, morphology and molecular structure of molecular compounds in trisamide triarylamine organogels and pseudo-organogels
Thermodynamics, morphology and molecular structure of molecular compounds in trisamide triarylamine organogels and pseudo-organogels Open
In this paper, potentially-gelling binary systems are investigated by DSC, X-ray and Electron microscopy in order to assess their gel status and the role of the Hansen solubility parameter.
View article: Efficient Control of a Mesoporous Fibrillar PEDOT:PSS Aerogel Structure for Promising Thermoelectric Applications
Efficient Control of a Mesoporous Fibrillar PEDOT:PSS Aerogel Structure for Promising Thermoelectric Applications Open
Graphical Abstract
View article: Peptide Hydrogels Assembled from Enzyme-Adsorbed Mesoporous Silica Nanostructures for Thermoresponsive Doxorubicin Release
Peptide Hydrogels Assembled from Enzyme-Adsorbed Mesoporous Silica Nanostructures for Thermoresponsive Doxorubicin Release Open
International audience
View article: Hierarchical Self-Assembly and Multidynamic Responsiveness of Fluorescent Dynamic Covalent Networks Forming Organogels
Hierarchical Self-Assembly and Multidynamic Responsiveness of Fluorescent Dynamic Covalent Networks Forming Organogels Open
Smart stimuli-responsive fluorescent materials are of interest in the context of sensing and imaging applications. In this project, we elaborated multidynamic fluorescent materials made of a tetraphenylethene fluorophore displaying aggrega…
View article: Modulation of the Molecular Structure of Tri-aryl Amine Fibrils in Hybrid Poly[vinyl chloride] Gel/Organogel Systems
Modulation of the Molecular Structure of Tri-aryl Amine Fibrils in Hybrid Poly[vinyl chloride] Gel/Organogel Systems Open
International audience
View article: Study of Membrane Protein Monolayers Using Surface-Enhanced Infrared Absorption Spectroscopy (SEIRAS): Critical Dependence of Nanostructured Gold Surface Morphology
Study of Membrane Protein Monolayers Using Surface-Enhanced Infrared Absorption Spectroscopy (SEIRAS): Critical Dependence of Nanostructured Gold Surface Morphology Open
Surface-enhanced infrared absorption spectroscopy (SEIRAS) is a powerful tool that allows studying the reactivity of protein monolayers at very low concentrations and independent from the protein size. In this study, we probe the surface's…
View article: pH Switchable Pickering Emulsions Stabilized by Polyelectrolyte Biosurfactant Complex Coacervate Colloids
pH Switchable Pickering Emulsions Stabilized by Polyelectrolyte Biosurfactant Complex Coacervate Colloids Open
Polyelectrolyte-surfactant complexes (PESCs) have long been employed as oil-in-water (o/w) emulsions stabilizers, but never in the structure of colloidal complex coacervates providing a Pickering effect. The complexed state of PESCs could …
View article: Gel-to-gel non-variant transition of an organogel caused by polymorphism from nanotubes to crystallites
Gel-to-gel non-variant transition of an organogel caused by polymorphism from nanotubes to crystallites Open
An organogel shows a gel-to-gel transition corresponding to the transformation of nanotubular aggregates into plain fibers, either by heating or aging. The domains of the existence of both gels are mapped in thec–Tphase diagram.
View article: Surface Triggered Self-Assembly of Fmoc-Tripeptide as an Antibacterial Coating
Surface Triggered Self-Assembly of Fmoc-Tripeptide as an Antibacterial Coating Open
In western countries, one patient on twenty will develop a nosocomial infection during his hospitalization at health care facilities. Classical antibiotics being less and less effective, this phenomenon is expanding year after year. Preven…
View article: Autonomous Growth of a Spatially Localized Supramolecular Hydrogel with Autocatalytic Ability
Autonomous Growth of a Spatially Localized Supramolecular Hydrogel with Autocatalytic Ability Open
Autocatalysis and self‐assembly are key processes in developmental biology and are involved in the emergence of life. In the last decade both of these features were extensively investigated by chemists with the final goal to design synthet…
View article: Tuning the Chiroptical Properties of Elongated Nano-objects <i>via</i> Hierarchical Organization
Tuning the Chiroptical Properties of Elongated Nano-objects <i>via</i> Hierarchical Organization Open
Chiral materials appear as excellent candidates to control and manipulate the polarization of light in optical devices. In nanophotonics, the self-assembly of colloidal plasmonic nanoparticles gives rise to strong resonances in the visible…