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Authors: Guo XM, Zhou H, Fan TX, Zhang D
Article Title: Electrochemical detection of p-nitrophenol on surface imprinted gold with lamellar-ridge architecture.
Publication date: 2015
Journal: Sensors and Actuators B: Chemical
Volume: 220
Page numbers: 33-39.
DOI: 10.1016/j.snb.2015.05.042
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0925400515006619
Abstract: 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)
Template and target information: p-nitrophenol, p-NP
Author keywords: gold, Lamellar-ridge architecture, surface molecular imprinting, p-nitrophenol, differential pulse voltammetry, Butterfly-scale
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