Listar UJI: Investigación por autoría "bdfc2da1-f937-4386-9258-c6217ff8315a"
Mostrando ítems 1-12 de 12
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A supramolecular hydrogel as a reusable heterogeneous catalyst for the direct aldol reaction
Rodríguez Llansola, Francisco; Miravet, Juan; Escuder, Beatriu Royal Society of Chemistry (2009)An L-proline based supramolecular hydrogel is used as an efficient heterogeneous organocatalyst for the direct aldol reaction with high stereoselectivity (up to 90% ee) and recyclability (up to 3 runs). The reversible ... -
HRMAS 1H NMR as a tool for the study of supramolecular gels
Iqbal, Sajid; Rodríguez Llansola, Francisco; Escuder, Beatriu; Miravet, Juan; Verbruggen, Ingrid; Willem, Rudolph Royal Society of Chemistry (2010-03-30)HRMAS 1H NMR is reported for the first time as a useful technique to gain insight into the dynamic properties of aggregates present in supramolecular gels. The study of several low molecular weight gelators with this ... -
Influence of the Solvent on the Self-Assembly of a Modified Amyloid Beta Peptide Fragment. II. NMR and Computer Simulation Investigation
Hamley, Ian W.; Nutt, D. R.; Brown, G. D.; Miravet, Juan; Escuder, Beatriu; Rodríguez Llansola, Francisco American Chemical Society (2010)The conformation of a model peptide AAKLVFF based on a fragment of the amyloid β peptide Aβ16−20, KLVFF, is investigated in methanol and water via solution NMR experiments and molecular dynamics computer simulations. In ... -
pH-Tunable Hydrogelators for Water Purification: Structural Optimisation and Evaluation
Greenland, Barnaby W.; Wood, Daniel M.; Acton, Aaron L.; Rodríguez Llansola, Francisco; Murray, Claire A.; Cardin, Christine J.; Miravet, Juan; Escuder, Beatriu; Hamley, Ian W.; Hayes, Wayne Wiley (2012-02)A focused library of potential hydrogelators each containing two substituted aromatic residues separated by a urea or thiourea linkage have been synthesised and characterized. Six of these novel compounds are highly efficient ... -
Remarkable increase in basicity associated with supramolecular gelation
Rodríguez Llansola, Francisco; Escuder, Beatriu; Miravet, Juan Royal Society of Chemistry (2009)L-Proline derivatives which are able to form supramolecular gels show an amazing basicity increase in the aggregated (gel) state as compared to solution. As a result they behave as enantioselective catalysts for the aldol ... -
Selective and highly efficient dye scavenging by a pH-responsive molecular hydrogelator
Rodríguez Llansola, Francisco; Escuder, Beatriu; Miravet, Juan; Hermida Merino, Daniel; Hamley, Ian W.; Cardin, Christine J.; Hayes, Wayne Royal Society of Chemistry (2010)A structurally simple low molecular weight hydrogelator derived from isophthalic acid forms robust pH-responsive hydrogels capable of highly efficient and selective dye adsorption. -
Self-Assembly Studies of a Chiral Bisurea-Based Superhydrogelator
Rodríguez Llansola, Francisco; Hermida Merino, Daniel; Nieto Ortega, Belén; Ramírez, Francisco J.; López Navarrete, Juan T.; Casado, Juan; Hamley, Ian W.; Escuder, Beatriu; Hayes, Wayne; Miravet, Juan Wiley (2012-11)A chiral bisurea-based superhydrogelator that is capable of forming supramolecular hydrogels at concentrations as low as 0.2 mM is reported. This soft material has been characterized by thermal studies, rheology, X-ray ... -
Structural and morphological studies of the dipeptide based L-Pro-L-Val organocatalytic gels and their rheological behaviour
Escuder, Beatriu; Rodríguez-Llansola, Francisco; Hamley, Ian W.; Miravet, Juan; Hayes, Wayne Royal Society of Chemistry (2012-07)Organocatalytic gels based on the dipeptide sequence L-Pro-L-Val have been studied by two different FTIR techniques. This suggests a different arrangement of the gelator molecules in the self-assembled fibers depending on ... -
Supramolecular Catalysis with Extended Aggregates and Gels: Inversion of Stereoselectivity Caused by Self-Assembly
Rodríguez Llansola, Francisco; Miravet, Juan; Escuder, Beatriu Wiley-VCH (2010)L-Proline-L-valine dipeptide derivatives, which self-assemble in toluene, have been studied as stereoselective catalysts in the conjugate addition of cyclohexanone to trans-β-nitrostyrene. Remarkable effects on the ... -
Supramolecular gel formation and self-correction induced by aggregation-driven conformational changes
Rodríguez Llansola, Francisco; Miravet, Juan; Escuder, Beatriu Royal Society of Chemistry (2009)The formation of self-assembled fibrillar networks by low molecular weight peptidomimetics containing a Pro-Val moiety is reported; insight into the aggregation mechanism is provided revealing that it is associated to ... -
Supramolecular gels as active media for organic reactions and catalysis
Escuder, Beatriu; Rodríguez Llansola, Francisco; Miravet, Juan Royal Society of Chemistry (2010)Supramolecular gels have attracted an enormous amount of interest from scientists in the last decade because of their potential applications proposed up to now in fields of great social impact like biomedicine or materials ... -
Switchable Perfomance of an l-Proline-Derived Basic Catalyst Controlled by Supramolecular Gelation
Rodríguez Llansola, Francisco; Escuder, Beatriu; Miravet, Juan American Chemical Society (2009)An l-proline-derived low molecular weight gelator forms gels in nitromethane and nitroethane and acts as a basic catalyst for the Henry nitroaldol reaction of these solvents with 4-nitrobenzaldehyde and 4-chlorobenzaldehyde. ...