Self-assembly of a peptide amphiphile: transition from nanotape fibrils to micelles
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Altres documents de l'autoria: Miravet, Juan; Escuder, Beatriu; Segarra Maset, María Dolores; Tena Solsona, Marta; Hamley, Ian W.; Dehsorkhi, Ashkan; Castelletto, Valeria
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Self-assembly of a peptide amphiphile: transition from nanotape fibrils to micellesAutoria
Data de publicació
2013-02Editor
Royal Society of ChemistryCita bibliogràfica
MIRAVET, Juan F., et al. Self-assembly of a peptide amphiphile: transition from nanotape fibrils to micelles. Soft Matter, 2013, 9.13: 3558-3564.Tipus de document
info:eu-repo/semantics/articleParaules clau / Matèries
Resum
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, 9Drets d'accés
© Royal Society of Chemistry 2014
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