SELECTIVE NANOSENSING OF COPPER (II) ION USING L-LYSINE FUNCTIONALIZED GOLD CYSTEAMINE SELF-ASSEMBLED MONOLAYER

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SHABANI R.; MOZAFFARI S.A.; HUSAIN S.W.; SABER TEHRANI M.

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Journal: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE Year:2009 | Volume:33 | Issue:A4 Page(s): 335-347

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Title

SELECTIVE NANOSENSING OF COPPER (II) ION USING L-LYSINE FUNCTIONALIZED GOLD CYSTEAMINE SELF-ASSEMBLED MONOLAYER

Author(s)

SHABANI R. | MOZAFFARI S.A. | HUSAIN S.W. | SABER TEHRANI M. | Issue Writer Certificate

Keywords

SELF-ASSEMBLED MONOLAYERQ3

L-LYSINEQ3

ELECTROCHEMICAL IMPEDANCE SPECTROSCOPYQ3

COPPER (II) IONQ3

Abstract

Fabrication of a cysteamine (CA) SELF-ASSEMBLED MONOLAYER (SAM) modified gold electrode insitu functionalized with L-LYSINE (Lys) is presented and described. The fabricated electrode was used for highly selective and sensitive accumulation and the determination of copper ions (Cu2+) in a nanomolar concentration. Techniques like cyclic voltammetry (CV) and ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY (EIS) with an external redox probe (p-Benzoquinone) were used to investigate the layer-by-layer self assembly modification on a gold electrode, monolayer structure and the ion permeation through it. The differential pulse voltammetric (DPV) method was used for determination of Cu2+. The results indicated that DPV peaks currents have a linear relationship with pCu in the concentration range of 1.0×10-12 - 1×10-6 M, with a correlation coefficient of 0.9982. The detection limit could be estimated 1.2×10-13 M according to the IUPAC recommendation (3s).

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APA: Copy

SHABANI, R., MOZAFFARI, S.A., HUSAIN, S.W., & SABER TEHRANI, M.. (2009). SELECTIVE NANOSENSING OF COPPER (II) ION USING L-LYSINE FUNCTIONALIZED GOLD CYSTEAMINE SELF-ASSEMBLED MONOLAYER. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE, 33(A4), 335-347. SID. https://sid.ir/paper/117998/en

Vancouver: Copy

SHABANI R., MOZAFFARI S.A., HUSAIN S.W., SABER TEHRANI M.. SELECTIVE NANOSENSING OF COPPER (II) ION USING L-LYSINE FUNCTIONALIZED GOLD CYSTEAMINE SELF-ASSEMBLED MONOLAYER. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE[Internet]. 2009;33(A4):335-347. Available from: https://sid.ir/paper/117998/en

IEEE: Copy

R. SHABANI, S.A. MOZAFFARI, S.W. HUSAIN, and M. SABER TEHRANI, “SELECTIVE NANOSENSING OF COPPER (II) ION USING L-LYSINE FUNCTIONALIZED GOLD CYSTEAMINE SELF-ASSEMBLED MONOLAYER,” IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A- SCIENCE, vol. 33, no. A4, pp. 335–347, 2009, [Online]. Available: https://sid.ir/paper/117998/en

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