A novel non-enzymatic hydrogen peroxide sensor based on Mn-nitrilotriacetate acid (Mn-NTA) nanowires.
A novel non-enzymatic hydrogen peroxide sensor was realized from Mn-nitrilotriacetate acid (Mn-NTA) nanowires, which were successfully fabricated via a facile hydrothermal route. Cyclic voltammetry (CV) revealed that the Mn-NTA nanowires exhibited direct electrocatalytic activity for the oxidation of H(2)O(2) in phosphate buffer solution. The sensor showed linear response to H(2)O(2) at the concentrations range from 5 x 10(-6)M to 2.5 x 10(-3)M with a detection limit of 2 x 10(-7)M. The sensitivity was up to 78.9 microA mM(-1)cm(-2). These results indicated that the Mn-NTA nanowires were promising in realizing non-enzymatic H(2)O(2) detection.
Liu
Shuang
S
Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, and State Key Laboratory for Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China.
Li
Limiao
L
Hao
Quanyi
Q
Yin
Xiaoming
X
Zhang
Ming
M
Li
Qiuhong
Q
Chen
Libao
L
Wang
Taihong
T
D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D004563:Electrochemistry; D006861:Hydrogen Peroxide / Q000032:analysis* / Q000737:chemistry; D008345:Manganese / Q000737:chemistry*; D053770:Nanowires / Q000737:chemistry*; D009571:Nitrilotriacetic Acid / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction
D009942:Organometallic Compounds; D008345:Manganese; D006861:Hydrogen Peroxide; D009571:Nitrilotriacetic Acid