(a) Stained and (b) unstained TEM images of 5% Co-magnetoferritin. Inset shows corresponding ED with magnetite indices shown. (c) Raman spectra for magnetoferritin and 5% Co-magnetoferritin crystals. The arrows indicate the main Raman vibration modes for CoFe2O4, maghemite and magnetite.7,9 λexc is the laser wavelength used.
Zero-field-cooled measurements at 100 Oe of monomers of Magnetoferritin (x = 0%) and x Co-Magnetoferritin for x = 0.5%, 1%, 2.5%, 5%, 10%, and 12.5%.
Relaxation measurements of monomers of magnetoferritin (a) and x Co-magnetoferritin (b) for x = 2.5% and 5% differentiated to give an effective energy barrier distribution. Gaussian fits are represented in light gray dashed lines.
Compositional and magnetic data for magnetoferritin and Co-magnetoferritin.
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