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Issue 20, 2011
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Mechanical and thermal stabilities of peptideamphiphile fibres

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Abstract

In this study the thermal and mechanical stabilities of self-assembled fibres of palmitoyl functionalized GANPNAAG have been examined. The thermal stability was investigated with circular dichroism, dynamic light scattering and fluorescence measurements monitoring the disassembly upon heating and reassembly upon cooling. The determination of the temperature dependence of the critical aggregation concentration allowed us to estimate the thermodynamic parameters involved in the fibre formation process. The mechanical stability of the fibres was studied using flow-induced birefringence. The peptide based self-assembled structures were found to be thermally stable up to 70 °C, while being fractured by moderate shear flow.

Graphical abstract: Mechanical and thermal stabilities of peptide amphiphile fibres

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Article information


Submitted
11 Apr 2011
Accepted
31 May 2011
First published
05 Jul 2011

Soft Matter, 2011,7, 9737-9743
Article type
Paper

Mechanical and thermal stabilities of peptide amphiphile fibres

M. van den Heuvel, H. Baptist, P. Venema, E. van der Linden, D. W. P. M. Löwik and J. C. M. van Hest, Soft Matter, 2011, 7, 9737
DOI: 10.1039/C1SM05642E

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