Supramolecular Nanostructure Formation of Coassembled Amyloid Inspired Peptides

Characterization of amyloid-like aggregates through converging approaches can yield deeper understanding of their complex self-assembly mechanisms and the nature of their strong mechanical stability, which may in turn contribute to the design of novel supramolecular peptide nanostructures as functio...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 32(2016), 25 vom: 28. Juni, Seite 6506-14
1. Verfasser: Cinar, Goksu (VerfasserIn)
Weitere Verfasser: Orujalipoor, Ilghar, Su, Chun-Jen, Jeng, U-Ser, Ide, Semra, Guler, Mustafa O
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Amyloid Benzothiazoles Peptides Thiazoles thioflavin T 2390-54-7
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520 |a Characterization of amyloid-like aggregates through converging approaches can yield deeper understanding of their complex self-assembly mechanisms and the nature of their strong mechanical stability, which may in turn contribute to the design of novel supramolecular peptide nanostructures as functional materials. In this study, we investigated the coassembly kinetics of oppositely charged short amyloid-inspired peptides (AIPs) into supramolecular nanostructures by using confocal fluorescence imaging of thioflavin T binding, turbidity assay and in situ small-angle X-ray scattering (SAXS) analysis. We showed that coassembly kinetics of the AIP nanostructures were consistent with nucleation-dependent amyloid-like aggregation, and aggregation behavior of the AIPs was affected by the initial monomer concentration and sonication. Moreover, SAXS analysis was performed to gain structural information on the size, shape, electron density, and internal organization of the coassembled AIP nanostructures. The scattering data of the coassembled AIP nanostructures were best fitted into to a combination of polydisperse core-shell cylinder (PCSC) and decoupling flexible cylinder (FCPR) models, and the structural parameters were estimated based on the fitting results of the scattering data. The stability of the coassembled AIP nanostructures in both fiber organization and bulk viscoelastic properties was also revealed via temperature-dependent SAXS analysis and oscillatory rheology measurements, respectively 
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650 4 |a Research Support, Non-U.S. Gov't 
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650 7 |a Benzothiazoles  |2 NLM 
650 7 |a Peptides  |2 NLM 
650 7 |a Thiazoles  |2 NLM 
650 7 |a thioflavin T  |2 NLM 
650 7 |a 2390-54-7  |2 NLM 
700 1 |a Orujalipoor, Ilghar  |e verfasserin  |4 aut 
700 1 |a Su, Chun-Jen  |e verfasserin  |4 aut 
700 1 |a Jeng, U-Ser  |e verfasserin  |4 aut 
700 1 |a Ide, Semra  |e verfasserin  |4 aut 
700 1 |a Guler, Mustafa O  |e verfasserin  |4 aut 
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