Ferrocene–Tryptophan Conjugate: An Example
of a Redox-Controlled Reversible Supramolecular Nanofiber Network
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Abstract
In this study, the tryptophan derivative
of ferrocene-1,1′-dicarboxylic
acid self-assembles in toluene to form a supramolecular nanofibrillar
network structure. The ferrocene bioconjugate based nanofibers are
responsive toward oxidation/reduction and show thermo and redox reversibility.
Interestingly, redox-induced reversible morphological transformations
between nanofiber and spheroid were observed. The self-assembly was
characterized by <sup>1</sup>H NMR spectroscopy, FT-IR spectroscopy,
UV–vis spectroscopy, circular dichroism (CD), and transmission
electron microscopy (TEM)
