Details

Autor(en) / Beteiligte

• Lin, Li
• Qiu, Peihong
• Cao, Xuni
• Jin, Litong

Titel

Colloidal silver nanoparticles modified electrode and its application to the electroanalysis of Cytochrome c

Ist Teil von

• Electrochimica acta, 2008-06, Vol.53 (16), p.5368-5372

Ort / Verlag

Oxford: Elsevier Ltd

Erscheinungsjahr

2008

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A colloidal silver nanoparticles (CSNs) chemically modified electrode was prepared and its application to the electroanalysis of Cytochrome c (Cyt. c) was studied. The CSNs were prepared by reduction of AgNO 3 with NaBH 4, and were stabilized by oleate. They could be efficiently immobilized on the surface of a silver electrode. The result showed that the CSNs could clearly enhance the electron transfer process between Cyt. c and the electrode compared with bulk silver electrode. Linear sweep voltammetric measurement of Cyt. c at the chemical modified electrode indicated that the oxidative peak current of Cyt. c was linear to its concentration ranging from 8.0 nmol L −1 to 3.0 μmol L −1 with the calculated detection limit was about 2.6 nmol L −1. The direct electrochemistry of Cyt. c was also studied by cyclic voltammetry.