Self-assembly of a peptide amphiphile: transition from nanotape fibrils to micelles
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Otros documentos de la autoría: Miravet, Juan; Escuder, Beatriu; Segarra Maset, María Dolores; Tena Solsona, Marta; Hamley, Ian W.; Dehsorkhi, Ashkan; Castelletto, Valeria
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Título
Self-assembly of a peptide amphiphile: transition from nanotape fibrils to micellesAutoría
Fecha de publicación
2013-02Editor
Royal Society of ChemistryCita bibliográfica
MIRAVET, Juan F., et al. Self-assembly of a peptide amphiphile: transition from nanotape fibrils to micelles. Soft Matter, 2013, 9.13: 3558-3564.Tipo de documento
info:eu-repo/semantics/articlePalabras clave / Materias
Resumen
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 ... [+]
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 nanotapes by the acetate salt of this peptide amphiphile, which incorporates a pentapeptide from type I procollagen, has been studied previously [V. Castelletto et al., Chem. Commun., 2010, 46, 9185]. Here, proton NMR and SAXS provide evidence for the TFA salt spherical micelles at high temperature. The phase behavior, with a Krafft temperature separating insoluble aggregates (extended nanotapes) at low temperature from the high temperature micellar phase resembles that for conventional surfactants, however this has not previously been reported for peptide amphiphiles. [-]
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Soft Matter, 2013, 9Derechos de acceso
© Royal Society of Chemistry 2014
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