National Engineering Lab for TFT-LCD Materials and Technologies, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.
J Mater Chem B. 2019 Apr 7;7(13):2145-2150. doi: 10.1039/c8tb03242d. Epub 2019 Feb 26.
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.
采用有序介孔碳包覆碳化丝织物（OMC/CSFs）作为工作电极，制备了柔性多巴胺（DA）传感器。这些独立的 OMC/CSF 电极是通过将 resol 和嵌段聚合物与 CSFs 共组装，并对所得复合材料进行碳化而得到的。结果，在 CSFs 表面生长出具有垂直排列有序介孔阵列的均匀 OMC 层，这有效地影响了 OMC/CSFs 对 DA 的电化学检测行为。使用柔性 OMC/CSF 电极，电化学 DA 传感器表现出高灵敏度、良好的选择性、宽线性检测范围（0.2-80 μM）和低检测限（0.11 μM），优于最近报道的基于无贵金属电极的柔性 DA 传感器。
