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Updated: Dec 28, 2025
Fabrication of 3D Carbon Microelectromechanical Systems C-MEMS
Published on: June 17, 2017
Ordered mesoporous carbon-covered carbonized silk fabrics for flexible electrochemical dopamine detection
Xiongyu Liu1, Xin Xi, Changlong Chen
1National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China. yzsu@sjtu.edu.cn ruililiu@sjtu.edu.cn.
Abstract:
Flexible dopamine (DA) sensors were fabricated with ordered mesoporous carbon-covered carbonized silk fabrics (OMC/CSFs) as the working electrodes. These free-standing OMC/CSF electrodes were derived from the co-assembly of resol and block polymers with CSFs as substrates and subsequent carbonization of the resulting composites. As a result, a homogeneous OMC layer with vertically aligned ordered mesopore arrays grew on the surface of the CSFs, which effectively influenced the electrochemical detection behavior of OMC/CSFs towards DA. Using the flexible OMC/CSF electrodes, the electrochemical DA sensors exhibited high sensitivity, good selectivity, a large linear detection range of 0.2-80 μM, and a low limit detection of 0.11 μM, which were better than those of recently reported flexible DA sensors based on precious-metal-free electrodes.
