Citation: Wen Zhao, Xia Qin Wu, Zhong Qing Lu, Wen Jing Hou, He Xing Li. Electrochemical studies of chloroperoxidase on poly-L-lysine film modified GC electrode[J]. Chinese Chemical Letters, ;2010, 21(1): 93-96. doi: 10.1016/j.cclet.2009.09.010 shu

Electrochemical studies of chloroperoxidase on poly-L-lysine film modified GC electrode

Life and Environment Science College, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, China

Received Date: 27 May 2009

Fund Project: This work was financially supported by grant from National Natural Science Foundation of China (No. 20775049).

Poly-L-lysine (PLL) was first electrodeposited onto the surface of a glassy carbon (GC) electrode. The PLL modified electrode was used to immobilize chloroperoxidase (CPO) via l-[(3-dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (EDC). The electrochemical behaviors of immobilized CPO on PLL/GC electrode were investigated by cyclic voltammetry (CV). The CV results obtained showed that CPO was successfully immobilized on the PLL/GC electrode and a fast direct electron transfer between CPO and PLL-GC electrode was achieved with a formal redox potential of-0.23 V vs. SCE. The CPO-PLL/GC modified electrode showed a good catalytic activity for electrocatalytical reduction of O₂, promising for a broad range of CPO-catalyzed transformations.
- Chloroperoxidase,
- Poly-L-lysine,
- Electrodeposition,
- Electrocatalysis,
- Direct electrochemistry,
- Modified electrode
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