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Wiring Electrons of Cytochrome c with Silver Nanoparticles in Layered Films
Author(s) -
Liu Tao,
Zhong Jun,
Gan Xin,
Fan Chunhai,
Li Genxi,
Matsuda Naoki
Publication year - 2003
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200300817
Subject(s) - pyrolytic carbon , silver nanoparticle , electron transfer , highly oriented pyrolytic graphite , electrochemistry , cytochrome c , electrode , bioelectrochemistry , nanoparticle , nanotechnology , graphite , electron transport chain , chemistry , materials science , photochemistry , organic chemistry , biochemistry , pyrolysis , mitochondrion
Pass it on! Highly conductive silver nanoparticles (NPs; see picture) act as efficient electron relays on a pyrolytic graphite (PG) electrode, and heavily negatively charged silver NPs provide suitable docking sites for positively charged cytochrome c (cyt c). Direct, well‐defined electrochemistry of cyt c is obtained at an assembled silver NPs/PG electrode surface, which results in an electron‐transfer rate of 15.8 s −1 for cyt c. The usage of silver NPs will open new opportunities for studying in vitro electron‐transfer processes of heme protein and for fabrication of bioelectronic devices.