ArticleSensors (Basel, Switzerland)2012
Mechanisms for the direct electron transfer of cytochrome c induced by multi-walled carbon nanotubes.
Article in Sensors (Basel, Switzerland), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Determination of Graphene Oxide Adsorption Space by Lysozyme Uptake─Mechanistic Studies.The journal of physical chemistry. B · 2022Article
- Electrogeneration of a Free-Standing Cytochrome c-Silica Matrix at a Soft Electrified Interface.Langmuir : the ACS journal of surfaces and colloids · 2021Article
- Cytochrome c-multiwalled carbon nanotube and cobalt metal organic framework/gold nanoparticle immobilized electrochemical biosensor for nitrite detection.RSC advances · 2020Article
- Plant secondary metabolites induced electron flux in microbial fuel cell: investigation from laboratory-to-field scale.Scientific reports · 2020Article
- Controlling enzymatic activity by immobilization on graphene oxide.Die Naturwissenschaften · 2017Article
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Multi-walled carbon nanotube (MWCNT)-modified electrodes can promote the direct electron transfer (DET) of cytochrome c (Cyt c). There are several possible mechanisms that explain the DET of Cyt c. In this study, several experimental methods, including Fourier transform infrared spectroscopy, circular dichroism, ultraviolet-visible absorption spectroscopy, and electron paramagnetic resonance spectroscopy were utilized to investigate the conformational changes of Cyt c induced by MWCNTs. The DET mechanism was demonstrated at various nano-levels: secondary structure, spatial orientation, and spin state. In the presence of MWCNTs, the secondary structure of Cyt c changes, which exposes the active site, then, the orientation of the heme is optimized, revolving the exposed active center to the optimum spatial orientation for DET; and finally, a transition of spin states is induced, providing relatively high energy and a more open microenvironment for electron transfer. These changes at different nano-levels are closely connected and form a complex process that promotes the electron transfer of Cyt c.
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