Electrochemical detection of p-nitrophenol on surface imprinted gold with lamellar-ridge architecture

被引：37
作者：
Guo, Xingmei [1 ]
Zhou, Han [1 ]
Fan, Tongxiang [1 ]
Zhang, Di [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2015年 / 220卷
基金：
中国国家自然科学基金;
关键词：
Gold; Lamellar ridge architecture; Surface molecular imprinting; p-Nitrophenol; Differential pulse voltammetry; Butterfly-scale; SELECTIVE DETERMINATION; NANOPOROUS GOLD; 4-NITROPHENOL; NANOPARTICLES; ISOMERS; SENSOR; WATER; OXIDE; PERFORMANCE; EFFICIENT;
D O I：
10.1016/j.snb.2015.05.042
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Lamellar-ridge architectured gold (lamellar ridge-Au) with nanograin size and large accessible surface area was constructed using blue Morph butterfly-scales as architecture template by electroless deposition method. Surface molecular imprinting was further conducted by assembling 1-dodecanethiol, p-toluenethiol, and p-nitrophenol (p-NP) on lamellar ridge-Au surface followed by removing molecular template p-NP. By coupling surface imprinting effect with the elaborate lamellar-ridge architecture, excellent p-NP detection performance with good selectivity was achieved by differential pulse voltammetry (DPV). The linear range was 2.5 x 10(-8) M-1 x 10(-6) M and 1 x 10(-6) M-3 x 10(-4) M with a detection limit of 2.0 x 10(-8) M (S/N = 3), which was 240 times lower than that of the bare lamellar ridge-Au (4.8 x 10(-6) M). (c) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：33 / 39
页数：7
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