A5020283285- Supramolecular Self-Assembly in Materials
- Advanced Polymer Synthesis and Characterization
- Block Copolymer Self-Assembly
- Polymer composites and self-healing
- Polymer crystallization and properties
- Polydiacetylene-based materials and applications
- Surfactants and Colloidal Systems
- biodegradable polymer synthesis and properties
- Lipid Membrane Structure and Behavior
- Polymer Nanocomposites and Properties
- Conducting polymers and applications
- Pickering emulsions and particle stabilization
- Collagen: Extraction and Characterization
- Carbon dioxide utilization in catalysis
- Semiconductor materials and devices
- Supramolecular Chemistry and Complexes
- Liquid Crystal Research Advancements
- Catalytic Processes in Materials Science
- Hydrogels: synthesis, properties, applications
- Rheology and Fluid Dynamics Studies
- Luminescence and Fluorescent Materials
- Sarcoma Diagnosis and Treatment
- Nanopore and Nanochannel Transport Studies
- CAR-T cell therapy research
- Covalent Organic Framework Applications
European Science Foundation
2011-2024
Dutch Research Council
2015-2024
European Synchrotron Radiation Facility
2015-2024
Universidade de Vigo
2022-2024
John Wiley & Sons (Germany)
2023
Hospital Universitario La Paz
2023
CentraleSupélec
2021-2022
Université de Lorraine
2021-2022
Laboratoire Matériaux Optiques, Photonique et Systèmes
2020-2022
Hospital Regional de Concepción
2022
An elastomeric, healable, supramolecular polymer blend comprising a chain-folding polyimide and telechelic polyurethane with pyrenyl end groups is compatibilized by aromatic π−π stacking between the π-electron-deficient diimide π-electron-rich units. This interpolymer interaction key to forming tough, elastomeric material. Variable-temperature FTIR analysis of bulk material also conclusively demonstrates presence hydrogen bonding, which complements interactions. SAXS shows that healable...
Abstract The mineralized collagen fibril is the basic building block of bone, and commonly pictured as a parallel array ultrathin carbonated hydroxyapatite (HAp) platelets distributed throughout collagen. This orientation often attributed to an epitaxial relationship between HAp molecules inside 2D voids within fibril. Although recent studies have questioned this model, structural matrix HAp, mechanisms by which directs mineralization remain unclear. Here, we use XRD reveal that in are fact...
Recent developments on the experimental infrastructure and acquisition of new detectors Dutch–Belgian beamline BM26B at ESRF offer novel promising possibilities for synchrotron X-ray experiments in field polymer crystallization under processing-relevant conditions. In this contribution, some most recent mimicking conditions similar to those relevant plastics processing industry are discussed. Simultaneous thermal analysis wide-angle scattering (WAXS) experiments, millisecond time-frame...
Abstract Knowledge of the mechanism formation, orientation, and location phases inside thin perovskite films is essential to optimize their optoelectronic properties. Among most promising, low toxicity, lead‐free perovskites, tin‐based ones are receiving much attention. Here, an extensive in situ ex structural study performed on crystallization from solution 3D formamidinium tin iodide (FASnI 3 ), 2D phenylethylammonium (PEA 2 SnI 4 hybrid PEA FA n −1 Sn I +1 Ruddlesden–Popper perovskites....
A long-chain amino acid containing dipeptide has been found to form a hydrogel in phosphate buffer whose pH ranges from 6.0 8.8. The formed at 7.46 characterized by small-angle X-ray scattering (SAXS), wide-angle powder diffraction (PXRD), Fourier transform infrared (FT-IR) spectroscopy, field-emission scanning electron microscopy (FE-SEM), high-resolution transmission (HR-TEM) imaging and rheological analyses. microscopic studies suggest the formation of nanofibrillar three-dimensional (3D)...
Mixing of oppositely charged amphiphilic molecules (catanionic mixing) offers an attractive strategy to produce morphologies different from those formed by individual molecules. We report here on the use catanionic mixing anticancer drug amphiphiles construct multiwalled nanotubes containing a fixed and high loading. found that molecular ratio, solvent composition, overall concentrations, as well design studied are all important experimental parameters contributing tubular morphology....
The demand for energy storage systems with superior performance has led to the creation of hybrid supercapacitor device. With proper designs, supercapacitive materials can achieve high while reducing overall cost. Herein, a novel method is developed preparing three-dimensional hierarchical graphitic carbon nanocomposites highly dispersed mixed Co–Ni oxide nanoparticles (Co–Ni–O/3DG) by facile one-pot process involving carbonization and subsequent oxidation metal ion doped biopolymer...
A series of six low-molecular-weight elastomers with hydrogen bonding end groups have been designed, synthesized, and studied. The poly(urethane)-based all contained essentially the same hard block content (ca. 11%) differ only in nature their groups. Solution-state 1H NMR spectroscopic analysis model compounds featuring demonstrates that they exhibit very low binding constants range 1.4 to 45.0 M−1 CDCl3, yet corresponding each possess a markedly different nanoscale morphology rheology...
A structurally simple low molecular weight hydrogelator derived from isophthalic acid forms robust pH-responsive hydrogels capable of highly efficient and selective dye adsorption.
The microstructure of products manufactured by selective laser sintering (SLS) is known to be highly dependent on various process and material parameters. latter thus also affect the final part properties. While most work has focused ex-situ characterization printed parts, little about time-dependent development during sintering. In this work, we present direct observations microstructural evolution polyamide 12 (PA12) particle doublets in-situ synchrotron wide angle X-ray diffraction...
A series of supramolecular polyurethanes (SPUs) were designed and synthesised with synergetic multifunctional hydrogen bonding aliphatic amide end-caps. Hydrogen between the urethane, urea, motifs in polymers afford strong dynamic association polymer chains solid state. Phase separation apolar polar components also serves to reinforce their thermal mechanical properties. The polyurethane bisamide-morpholine end caps associates via multiple bonds exhibits enhanced tensile properties when...
Abstract The self-assembly of two derivatives KLVFF, a fragment Aβ(16–20) the amyloid beta (Aβ) peptide, is investigated and recovery viability neuroblastoma cells exposed to Aβ (1–42) observed at sub-stoichiometric peptide concentrations. Fluorescence assays show that NH 2 -KLVFF-CONH undergoes hydrophobic collapse formation same critical aggregation concentration ( cac ). In contrast, -K(Boc)LVFF-CONH low concentration, followed by higher . These findings are supported β-sheet features...
A histidine-containing peptide-based amphiphile (P1) forms a transparent hydrogel within pH range of 5.5 to 8.5 in phosphate buffer solution. Interestingly, thermal stability and mechanical stiffness are modulated by incorporating different types dicarboxylic acids into the hydrogels. Inclusion succinic acid with molar ratio 2:1 (peptide:dicarboxylic acid) yields improved properties compared other tested such as oxalic, glutaric octanedioic acids. Transmission electron microscopic (TEM)...
Control of the nucleation and growth process in self-assembled fibrillary networks (SAFiN) with goal preparing physical hydrogels from low-molecular-weight gelators (LMWG) is well established but mainly for temperature-driven hydrogelators. In presence other stimuli, such as pH, fundamental knowledge behind gel formation still lacking. particular, whether pH affects fibers how this aspect could be related to stability hydrogel are a matter debate. work, we establish precise relationship...
Rising trends in fish filleting are increasing the amount of processing by-products, such as skins turbot, a flatfish high commercial value. In line with circular economy principles, we propose valorization turbot through two-step process: initial gelatin extraction described for first time followed by hydrolysis remaining solids to produce collagen hydrolysates. We assayed several methods extraction, finding differences properties depending on chemical treatment and temperature. Of all...
The skin of yellowfin tuna is one the fishery industry solid residues with greatest potential to add extra value its circular economy that remains yet unexploited. Particularly, high collagen content fish allows generating gelatin by hydrolysis, which ideal for forming hydrogels due biocompatibility and gelling capability. Hydrogels have been used as drug carriers local administration their mechanical properties loading capacity. Herein, novel were designed vehicles two structurally...
Low-molecular-weight (LMW) molecules of biological origin like microbial glycolipid biosurfactants can self-assemble in water, with a tunable structure by soft chemistry approach (pH, temperature, and ionic strength). The unique molecular glycolipids gives possible access to wide variety aqueous self-assembled structures, although highly unpredictable beforehand. presented here consists glucose group linked C18:1-cis fatty acid (G-C18:1) produced the fermentation Starmerella bombicola...
Phase change material emulsions (PCME) have gained increasing scientific interest due to their potential enhance the storage capability of thermal facilities. Herein we present design and characterization oil−in−water (O/W) nanoemulsions by employing a dispersed phase mixture (2−12 wt.%) enriched in methyl myristate as material. The emulsifier compositions were optimized based on dynamic light scattering calorimetric analyses. A two−surfactant formulation composed sodium dodecyl sulfate...
The double gyroid network morphology has been the focus of extensive research efforts as one most appealing block copolymer structures for practical applications. We performed an study phase behavior supramolecular complex PS-b-P4VP(PDP)x to develop a systematic route its morphology. morphological characterization complexes was accomplished by transmission electron microscopy (TEM) and small-angle X-ray scattering (SAXS). Several compositions with cubic Ia3̅d symmetry were found in narrow...