Synthetic mimics of the amorphous biopolymer, melanin, can be generated using controlled metal concentrations through a prepolymerization doping strategy. Previous analysis of iron-doped analogues by SQUID magnetometry has shown strong evidence that, forthwith from synthesis, the material consists solely of Fe(III), comprising a mixture of isolated and exchange-coupled sites. It would be propitious to investigate how post-synthetically altering the metal oxidation state affects the magnetic coupling and overall electronic structure of the system. Herein, the results of these studies will be discussed with regard to the observed changes in reactivity.

Magnetic characterization of iron-doped polydopamine nanoparticles

2019 Fall National Meeting

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