Chemical adsorption of phenothiazine dyes onto carbon nanotubes: Toward the low potential detection of NADH
Chemical adsorption of phenothiazine dyes onto carbon nanotubes: Toward the low potential detection of NADH
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DOI：
10.1016/j.elecom.2005.10.026
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发表时间：
2006-01-01
影响因子：
5.4
通讯作者：
Wang, J
中科院分区：
文献类型：
--
作者：
Lawrence, NS;Wang, J
吩噻嗪染料，吸附到CNT的循环伏安响应已被评估为促进低电位，灵敏和稳定的测定NADH的一种手段。甲苯胺蓝修饰的碳纳米管（TB-CNT）的分析信号进行了评估，并与裸露的碳纳米管和甲苯胺蓝涂层的基面石墨电极的分析信号进行了比较;使用安培检测时，灵敏度和稳定性都有显着提高。CNT的本体改性已经允许开发廉价且容易的电极设计，其中CNT被填充到小腔中。发现该电极是稳定的，并且与其甲苯胺蓝涂覆的石墨粉末对应物相比给出了大大改善的信号。(c)2005 Elsevier B. V.保留所有权利。
The cyclic voltammetric responses for phenothiazine dyes, adsorbed onto CNT have been assessed as a means of promoting the low potential, sensitive and stable determination of NADH. The analytical signal of the toluidine blue modified carbon nanotubes (TB-CNT) has been evaluated and compared with those of the bare carbon nanotubes and toluidine blue coated basal plane graphite electrodes; significant improvements in both the sensitivity and stability are demonstrated when using amperometic detection. The bulk modification of the CNT has allowed for the development of an inexpensive and facile electrode design, in which the CNT are packed into a small cavity. The electrode was found to be stable and gave greatly improved signals over its toluidine blue coated graphite powder counterpart. (c) 2005 Elsevier B.V. All rights reserved.