Unravelling the Supramolecular Driving Forces in the Formation of CO2-Responsive Pseudopeptidic Low-Molecular-Weight Hydrogelators
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Título
Unravelling the Supramolecular Driving Forces in the Formation of CO2-Responsive Pseudopeptidic Low-Molecular-Weight HydrogelatorsAutoría
Fecha de publicación
2022Editor
MDPIISSN
2310-2861Cita bibliográfica
Esteve, F.; VillanuevaAntolí, A.; Altava, B.; GarcíaVerdugo, E.; Luis, S.V. Unravelling the Supramolecular Driving Forces in the Formation of CO2-Responsive Pseudopeptidic Low-MolecularWeight Hydrogelators. Gels 2022, 8, 390. https://doi.org/10.3390/ gels8060390Tipo de documento
info:eu-repo/semantics/articleVersión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
: 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. ... [+]
: 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 resulting open-chain compounds present remarkable properties as
low-molecular-weight hydrogelators. The self-assembled 3D networks were characterized by SEM
analyses, observing regular nanofibres with 80–100 nm diameters. Spectroscopic and molecular
modelling experiments revealed the presence of strong synergic effects between the H-bonding and
π–π interactions, with the best results obtained for the homoleptic tetra-pseudopeptide derived
from L-Phe. In addition, these bioinspired hydrogels possessed pH- and CO2
-responsive sol–gel
transitions. The formation of ammonium carbamate derivatives in the presence of carbon dioxide led
to a detrimental change in its adequate self-assembly. CO2 desorption temperatures of ca. 70 ◦C were
assigned to the thermodynamically favoured recovery of the supramolecular gel. [-]
Publicado en
Gels 2022, 8, 390Entidad financiadora
Universitat Jaume I | Consellería de Innovació, Universitat, i Ciencia | FEDER/Ministerio de Ciencia e Innovación–Agencia Estatal de Investigación
Código del proyecto o subvención
UJI-B2019-40 | UJIB2021-31 | AICO/2021/139 | RTI2018- 098233-B-C22
Derechos de acceso
info:eu-repo/semantics/openAccess
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