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Self-Sorting in Diastereomeric Mixtures of Functionalized Dipeptides

[Image: see text] Self-sorting in functionalized dipeptide systems can be driven by the chirality of a single amino acid, both at a high pH in the micellar state and at a low pH in the gel state. The structures formed are affected to some degree by the relative concentrations of each component showi...

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Detalles Bibliográficos
Autores principales: Guan, Qingwen, McAulay, Kate, Xu, Tian, Rogers, Sarah E., Edwards-Gayle, Charlotte, Schweins, Ralf, Cui, Honggang, Seddon, Annela M., Adams, Dave J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10265659/
https://www.ncbi.nlm.nih.gov/pubmed/37257089
http://dx.doi.org/10.1021/acs.biomac.3c00246
Descripción
Sumario:[Image: see text] Self-sorting in functionalized dipeptide systems can be driven by the chirality of a single amino acid, both at a high pH in the micellar state and at a low pH in the gel state. The structures formed are affected to some degree by the relative concentrations of each component showing the complexity of such an approach. The structures underpinning the gel network are predefined by the micellar structures at a high pH. Here, we describe the systems prepared from two dipeptide-based gelators that differ only by the chirality of one of the amino acids. We provide firm evidence for self-sorting in the micellar and gel phases using small-angle neutron scattering and cryo-transmission electron microscopy (cryo-TEM), showing that complete self-sorting occurs across a range of relative concentrations.