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

Guo, Xingmei ; Zhou, Han ; Fan, Tongxiang ; Zhang, Di

Sensors and actuators. B, Chemical, 2015-12, Vol.220, p.33-39 [Periódico revisado por pares]

Elsevier B.V

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  • Título:
    Electrochemical detection of p-nitrophenol on surface imprinted gold with lamellar-ridge architecture
  • Autor: Guo, Xingmei ; Zhou, Han ; Fan, Tongxiang ; Zhang, Di
  • Assuntos: Accessibility ; Actuators ; Architecture ; Assembling ; Butterfly-scale ; Coupling (molecular) ; Differential pulse voltammetry ; Gold ; Lamellar-ridge architecture ; p-Nitrophenol ; Surface area ; Surface molecular imprinting ; Voltammetry
  • É parte de: Sensors and actuators. B, Chemical, 2015-12, Vol.220, p.33-39
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: •lamellar ridge-Au with high accessible surface area templated from butterfly-scales.•Surface molecular imprinting for specific recognition of p-NP.•Electrochemical detection of p-NP with high efficiency and good selectivity. 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 2.5×10−8M–1×10−6M and 1×10−6M–3×10−4M with a detection limit of 2.0×10−8M (S/N=3), which was 240 times lower than that of the bare lamellar ridge-Au (4.8×10−6M).
  • Editor: Elsevier B.V
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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