scholarly journals Interactions between Cytochrome c and DNA Strands Self-Assembled at Gold Electrode

2007 ◽  
Vol 8 (2) ◽  
pp. 136-144 ◽  
Author(s):  
Ruojun Lao ◽  
Lihua Wang ◽  
Ying Wan ◽  
Jiong Zhang ◽  
Shiping Song ◽  
...  
Keyword(s):  
Cytochrome C ◽  
Gold Electrode ◽  
Dna Strands ◽  
Self Assembled

Gold nanoparticle-mediated electron transfer of cytochrome c on a self-assembled surface

RSC Advances ◽  
2016 ◽  
Vol 6 (67) ◽  
pp. 62585-62593 ◽  
Author(s):  
Roberto A. S. Luz ◽  
Frank N. Crespilho
Keyword(s):  
Gold Nanoparticles ◽  
Electron Transfer ◽  
Cytochrome C ◽  
Gold Nanoparticle ◽  
Gold Electrode ◽  
Short Range ◽  
Mediated Electron Transfer ◽  
Self Assembled

Gold nanoparticles provide short-range electron transfer between cytochrome c and gold electrode.

Interaction of nitric oxide with Ru(II) complexes of deuteroporphyrindimethylester derivatives

2009 ◽  
Vol 13 (01) ◽  
pp. 35-40 ◽  
Author(s):  
Rudy Martin ◽  
Roberto Cao ◽  
Ana M. Esteva ◽  
Franz-Peter Montforts
Keyword(s):  
Nitric Oxide ◽  
Photoelectron Spectroscopy ◽  
Gold Electrode ◽  
Charge Transfer Band ◽  
Bathochromic Shift ◽  
Considerable Change ◽  
Cathodic Peak ◽  
X Ray ◽  
Polycrystalline Gold ◽  
Self Assembled

A new ruthenium(II) porphyrin disulphide derivative, [ Ru ( Pds )( CO )], was obtained from ruthenium(II)(carbonyl)deuteroporphyrin(IX), [ Ru ( DPdc )( CO )] and cystamine. The interaction of this complex with nitric oxide was studied spectrophotometrically and a bathochromic shift of the charge transfer band and considerable change in the α and β bands of the complex were observed. According to the IR spectrum, the product of this interaction is [ Ru ( DmDP )( NO +)( NO 2-)]. [ Ru ( Pds )( CO )] was then self-assembled on polycrystalline gold and characterized by X-ray photoelectron spectroscopy. [ Ru ( Pds )( CO )] was also self-assembled on gold electrode beads and its interaction with nitric oxide in aqueous solution was studied by cyclic voltammetry. A shift in the ruthenium redox process and a new irreversible cathodic peak at -0.59 V were observed, both indicating coordination of NO .

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