Listar por tema "hydrogels"
Mostrando ítems 1-14 de 14
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A minimalistic catalytically-active cell mimetic made of a supra-molecular hydrogel encapsulated into a polymersome
Royal Society of Chemistry (2020)A minimalistic multicomponent cell mimetic is described consisting of a fibrillar network formed by the self-assembly of a low molecular weight compound (cytoskeleton-like) that is entrapped into a polymersome (membrane-like), ... -
Chemically Fueled Autonomous Sol→Gel→Sol→Gel→Sol Transitions
Wiley (2023-06-05)Complex non-equilibrium phase behaviors are a hallmark of natural self-assembling systems. Here we show how intricate phase transitions can be achieved through a chemically fueled reaction cycle to yield autonomous ... -
Chemically Fueled Self-Sorted Hydrogels
American Chemical Society (2022-01-12)Narcissistic self-sorting in supramolecular assemblies can help to construct materials with more complex hierarchies. Whereas controlled changes in pH or temperature have been used to this extent for two-component self-sorted ... -
Effect of Hyaluronic Acid on the Self-Assembly of a Dipeptide-Based Supramolecular Gel
Wiley (2023-10-02)The combination of polymers and low molecular weight (LMW) compounds is a powerful approach to prepare new supramolecular materials. Here we prepare two-component hydrogels made by a well-known and biologically active ... -
Freezing Capture of Polymorphic Aggregates of Bolaamphiphilic L-Valine-Based Molecular Hydrogelators
WILEY-VCH Verlag GmbH & Co. KGaA (2014-05)Nanostructured xerogels have been prepared by the freeze-drying of hydrogels and aggregates formed by bolaamphiphilic l-valine derivatives after aging under different environmental conditions. A wide variety of shapes and ... -
Functional gels as microreactors
Universitat Jaume I (2016-11-04)Functionalized Hydrogels upon self-assembly demonslrate enzyme like catalysis owing to the formatin of hydrophobic pockets, increased local concentration of the catalytic sites, pKa change, pH shift etc. Here we present ... -
Highly-efficient sustainable ionic thermoelectric materials using lignin-derived hydrogels
Springer (2024)The efficient and economical conversion of low-grade waste heat into electricity has promising potential to combat the greenhouse effect and expedite the shift towards sustainable development. This study presents an ... -
Morphology Diversity of L‐Phenylalanine‐Based Short Peptide Supramolecular Aggregates and Hydrogels
Wiley (2018-08)Supramolecular aggregates and hydrogels of diverse morphologies can be obtained by replacing the widely studied aromatic N‐capping of phenylalanine derivatives by long alkyl chains. Simple changes in chain length and number ... -
Open chain pseudopeptides as hydrogelators with reversible and dynamic responsiveness to pH, temperature and sonication as vehicles for controlled drug delivery
Elsevier (2022-01-25)A new family of open chain-pseudopeptidic compounds displaying a pendant carboxylic group have been prepared with excellent yields. Their self-assembly has been studied under different conditions and in different media. ... -
Rational Design of Heat-Set and Specific-Ion-Responsive Supramolecular Hydrogels Based on the Hofmeister Effect
WILEY-VCH Verlag GmbH & Co. KGaA (2014-10)Smart supramolecular hydrogels have been prepared from a bolaamphiphilic l-valine derivative in aqueous solutions of different salts. The hydrogels respond selectively to different ions and are either reinforced or weakened. ... -
Re-programming Hydrogel Properties Using a Fuel-Driven Reaction Cycle
American Chemical Society (2020-03-04)Nature uses catalysis as an indispensable tool to control assembly and reaction cycles in vital non-equilibrium supramolecular processes. For instance, enzymatic methionine oxidation regulates actin (dis-)assembly, and ... -
Selective Interaction of Dopamine with the Self-Assembled Fibrillar Network of a Molecular Hydrogel Revealed by STD-NMR
Wiley (2015-09-28)A molecular hydrogel formed by a derivative of L-valine with pendant isonicotinoyl moieties interacts selectively with protonated dopamine in the presence of related compounds such as 3-methylcatechol, and protonated or ... -
Self‐Assembled Nanofibrilar Networks: Boosting Hydrogelation Efficiency by Replacement of a Pyridine Moiety by a Quinoline One
Wiley (2015-08)A new molecular hydrogelator consisting of a L‐Valine derivative with appended quinoline units behaves as a supramolecular superhydrogelator forming gels at such low concentrations as 0.8 mM (0.05% w/w). On the other hand, ... -
Unravelling the Supramolecular Driving Forces in the Formation of CO2-Responsive Pseudopeptidic Low-Molecular-Weight Hydrogelators
MDPI (2022): A new family of C2 -symmetric pseudopeptides with a high functional density for supramolecular interactions has been synthetized through the attachment of four amino acid subunits to a diamino aliphatic spacer. The ...