Abstract:Silica hydrogel (glass) was doped with native (iron-containing)
cytochrome c and with its zinc derivative.
Ultraviolet−visible, circular dichroism, and resonance Raman
spectra of both proteins and the lifetime of the triplet
state of the zinc protein show that encapsulation in the sol-gel glass
only slightly perturbs the polypeptide backbone
and does not detectably perturb the heme group. Because thermal
(ground-state) redox reactions of the encapsulated
native cytochrome c are very slow, we take advantage of … Show more
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