A novel nitrogen-doped graphene fiber microelectrode with ultrahigh sensitivity for the detection of dopamine |
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| Institution: | 1. School of Chemistry, Beijing Institute of Technology, Beijing 100081, China;2. Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;1. Rabin Desalination Laboratory, Wolfson Faculty of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel;2. Amiad Water Systems Ltd., D.N. Galil Elyon, 1233500, Israel |
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| Abstract: | A novel nitrogen doped graphene fiber (NGF) was fabricated via a simple and facile wet-spinning strategy followed by annealing at high temperature, which can be applied as a remarkable electrode material. The NGF microelectrode shows good sensitivity and selectivity for the detection of dopamine with a wide linear response in the range of 0.1 μM to 80 μM, with the detection limit of 30 nM and an ultrahigh sensitivity of 22.08 μA μM? 1 cm? 2. Such high performance enables the NGF to be a prominent material in the branch of electrochemical analysis. |
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