Listar por autoría "57373005-f11e-45f7-9985-daced5ef5857"
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Control of molecular gelation by chemical stimuli
Segarra Maset, María Dolores; Nebot Carda, Vicent J.; Miravet, Juan; Escuder, Beatriu Royal Society of Chemistry (2012-12-21)Molecular gels are formed by the self-assembly of low-molecular weight compounds by weak non-covalent interactions and thus, they may be easily disassembled in response to external stimuli. Chemically sensitive gels can ... -
Diamine acylation with amino acid derivatives: an example of proximity effect in organic reactivity induced by supramolecular aggregation
Felip-León, Carles; Segarra Maset, María Dolores; Escuder, Beatriu; Miravet, Juan Elsevier (2015-02)Unexpected high yields of diamide 3 are obtained in the reaction of 1,3-propanediamine with an activated ester of l-valine (1) under adverse proportions of the reactants, namely in the presence of an excess of 1,3-propanediamine. ... -
Selective Interaction of Dopamine with the Self-Assembled Fibrillar Network of a Molecular Hydrogel Revealed by STD-NMR
Segarra Maset, María Dolores; Escuder, Beatriu; Miravet, Juan 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-assembly of a peptide amphiphile: transition from nanotape fibrils to micelles
Miravet, Juan; Escuder, Beatriu; Segarra Maset, María Dolores; Tena Solsona, Marta; Hamley, Ian W.; Dehsorkhi, Ashkan; Castelletto, Valeria Royal Society of Chemistry (2013-02)A thermal transition is observed in the peptide amphiphile C16-KTTKS (TFA salt) from nanotapes at 20 °C to micelles at higher temperature (the transition temperature depending on concentration). The formation of extended ... -
Tuning Chelation by the Surfactant-Like Peptide A(6)H Using Predetermined pH
Castelletto, Valeria; Hamley, Ian W.; Segarra Maset, María Dolores; Berdugo Gumbau, Cristina; Miravet, Juan; Escuder, Beatriu; Seitsonen, J.; Ruokolainen, J. American Chemical Society (2014)We examine the self-assembly of a peptide A6H comprising a hexa-alanine sequence A6 with a histidine (H) “head group”, which chelates Zn2+ cations. We study the self-assembly of A6H and binding of Zn2+ ions in ZnCl2 ...