Direct electrochemistry and electrocatalysis of horseradish peroxidase with hyaluronic acid–ionic liquid–cadmium sulfide nanorod composite material

2010 ◽  
Vol 670 (1-2) ◽  
pp. 51-56 ◽  
Author(s):  
Zhihong Zhu ◽  
Xia Li ◽  
Yan Wang ◽  
Yan Zeng ◽  
Wei Sun ◽  
...  
Keyword(s):  
Composite Material ◽  
Ionic Liquid ◽  
Hyaluronic Acid ◽  
Horseradish Peroxidase ◽  
Cadmium Sulfide ◽  
Direct Electrochemistry

A direct electron transfer biosensor based on a horseradish peroxidase and gold nanotriangle modified electrode and electrocatalysis

2018 ◽  
Vol 10 (44) ◽  
pp. 5297-5304 ◽  
Author(s):  
Yanyan Niu ◽  
Juan Liu ◽  
Wei Chen ◽  
Chunxiao Yin ◽  
Wenju Weng ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Ionic Liquid ◽  
Horseradish Peroxidase ◽  
Modified Electrode ◽  
Direct Electron Transfer ◽  
Direct Electrochemistry ◽  
Carbon Ionic Liquid Electrode ◽  
Liquid Electrode ◽  
Gold Nanotriangles

Gold nanotriangles (AuNTs) were used as a modifier on the surface of a carbon ionic liquid electrode (CILE), which was applied to realize direct electrochemistry and electrocatalysis of horseradish peroxidase (HRP).

Direct electrochemistry of horseradish peroxidase in gelatin-hydrophobic ionic liquid gel films

2007 ◽  
Vol 52 (26) ◽  
pp. 7425-7431 ◽  
Author(s):  
Rui Yan ◽  
Faqiong Zhao ◽  
Jiangwen Li ◽  
Fei Xiao ◽  
Shuangshuang Fan ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Horseradish Peroxidase ◽  
Direct Electrochemistry ◽  
Hydrophobic Ionic Liquid

Direct electrochemistry and electrocatalysis of horseradish peroxidase immobilized in hyaluronic acid and single walled carbon nanotubes composite film

2010 ◽  
Vol 64 (5) ◽  
Author(s):  
Qi Wang ◽  
Jianbin Zheng
Keyword(s):  
Carbon Nanotubes ◽  
Hyaluronic Acid ◽  
Horseradish Peroxidase ◽  
Composite Film ◽  
Direct Electrochemistry ◽  
Phosphate Buffer Solution ◽  
Single Walled Carbon Nanotubes ◽  
Solution Ph ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

AbstractDirect electrochemistry and electrocatalysis of horseradish peroxidase (HRP) immobilized on a hyaluronic acid (HA)-single walled carbon nanotubes (SCNs) composite film coated glassy carbon electrode (GCE) was studied for the first time. HRP entrapped in the SCNs-HA composite film exhibited a pair of well-defined, quasi-reversible cyclic voltammetric peaks in a 0.1 M phosphate buffer solution (pH 7.0). Formal potential vs. standard calomel electrode (E°′) was −0.232 V, and E°′ was linearly dependent on the solution pH indicating that the electron transfer was proton-coupled. The current is linearly dependent on the scan rate, indicating that the direct electrochemistry of HRP in that case is a surface-controlled electrode process. UV-VIS spectrum suggested HRP retained its original conformation in the SCNs-HA film. Immobilized HRP showed excellent electrocatalysis in the reduction of hydrogen peroxide (H2O2).

Sign in / Sign up

Export Citation Format

Share Document