Journal of Electroanalytical Chemistry, Vol.431, No.1, 7-10, 1997
Investigations of a Novel Ferrocene-Containing Lipid by Cyclic Voltammetry and Cryogenic Transmission Electron-Microscopy
A novel chiral redox-active ferrocene compound (FcV1) with amphiphilic properties has been synthesized. Cryogenic Transmission Electron Microscopy (cryo-TEM) has been used to estimate the shape and size of the FcV1 aggregates in solution. Uni- and multi-lamellar vesicles (between 40 and 300 nm in diameter) were observed in water. Large particles (of more than 1 mu m in diameter) with a hexagonal fine structure were found in 50 mM aqueous Na2SO4 solution. Sonication transformed the latter into ’rosette’-like structures. Cyclic voltammetry has been employed to investigate the electrochemical properties of FcV1. The amphiphile adsorbed on graphite electrodes and a reversible electrochemical behaviour, characteristic of ferrocene, was observed with redox potentials between 330 and 350 mV.