Journal
NANO LETTERS
Volume 5, Issue 7, Pages 1255-1260Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl050203r
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Here we report the hierarchical self-assembly of a cross-linkable coiled-coil peptide containing an internal cysteine. Atomic force microscopy (AFM) experiments revealed the fractal structure of the assemblies, and molecular simulations showed that the peptides cross-linked to form clusters of coiled-coils, which further assembled to form globules of tens of nanometers in diameter. Such hierarchical organization was modulated by pH or thiol-reducing agent. Exploitation of the fractal structures through chemical methods may be valuable for the fabrication of materials spanning multiple length scales.
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