查找使用阿拉丁产品的科研文献

Fabrication of dendrite PtPd bimetallic nanocomposites modified carbon fiber microelectrodes for detecting superoxide anion released from living cells

Ziyue Sun,Hongli Zhao,Kaicha Chen,Fangfang Zhou,Minbo Lan

In this work, the carbon fiber microelectrode (CFME) coated by ERGO-CNT network was used as a substrate to support dendrite PtPd nanoclusters. An enzyme-free O 2 − electrochemical sensor (PtPd@ERGO-CNT-CFME) was prepared based on this strategy. Due to the brilliant loading and dispersing abilities of the substrate and the excellent electrochemical activity of the dendrite PtPd alloy, PtPd@ERGO-CNT-CFME demonstrated outstanding detection ability towards O 2 − . The as-constructed sensor showed a wide-linear range of 16–744 μM and 744–3064 μM with high sensitivity of 6967.3 μA mM −1 cm −2 and 4124.3 μA mM −1 cm −2 , and the detection limit was 5.07 μM. Furthermore, PtPd@ERGO-CNT-CFME was successfully applied to monitor O 2 − released from living cells. This phenomenon indicated the application potential for O 2 − detection in biological samples.