Gold nanowire assembling architecture for H2O2 electrochemical sensor.
Morphological control of nanomaterials is of great interest due to their size and shape-dependent chemical and physical properties and very important applications in many fields such as biomedicine, sensors, electronics and others. In this paper, we reported a simple strategy for synthesizing gold nanowire assembling architecture at room temperature. It is found that two important factors, the proper volume ratio of ethanol to water and poly(vinyl pyrrolidone) (PVP), will play important roles in synthesizing flower-like short gold nanowire assembling spheres. Furthermore, the obtained flower-like gold assembling spheres with high surface-to-volume ratio have been employed as enhancing materials for electrochemical sensing H(2)O(2). The present electrochemical sensing platform exhibited good electrocatalytic activity towards the reduction of H(2)O(2). The detection limit for H(2)O(2) was found to be 1.2 microM, which was lower than certain enzyme-based biosensors.
Guo
Shaojun
S
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China.
Wen
Dan
D
Dong
Shaojun
S
Wang
Erkang
E
D015374:Biosensing Techniques / Q000295:instrumentation*; D002384:Catalysis; D004563:Electrochemistry / Q000379:methods*; D004566:Electrodes; D006046:Gold / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000032:analysis; D053768:Metal Nanoparticles / Q000032:analysis*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology / Q000379:methods*; D053770:Nanowires / Q000032:analysis*
D006046:Gold; D006861:Hydrogen Peroxide