Formation of polyaniline layer on DNA by electrochemical polymerization

Yosef Bardavid; Jamal Ghabboun; Danny Porath; Alexander B. Kotylar; Shlomo Yitzchaik

doi:10.1016/j.polymer.2008.03.014

Formation of polyaniline layer on DNA by electrochemical polymerization

Yosef Bardavid, Jamal Ghabboun, Danny Porath, Alexander B. Kotylar, Shlomo Yitzchaik^*

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

We report the electropolymerization and characterization of polyaniline (PAN) on both DNA monolayer and single poly(dG)-poly(dC) DNA molecules serving as a template. The synthesis includes the formation of an electrostatic complex between the negatively charged DNA and positively charged anilinium ions followed by electrochemical oxidation and polymerization of the anilinium ions' monomers on the DNA template. The polymerization was carried out on a flame annealed gold substrate modified with positively charged self-assembled 4-aminothiophenol (4-ATPh) monolayer. The resulting monolayers and single macromolecular composites of DNA-PAN were characterized by atomic force microscopy (AFM), cyclic voltammetry (CV) impedance and UV-vis spectroscopy.

Original language	English
Pages (from-to)	2217-2222
Number of pages	6
Journal	Polymer
Volume	49
Issue number	9
DOIs	https://doi.org/10.1016/j.polymer.2008.03.014
State	Published - 29 Apr 2008

Bibliographical note

Funding Information:
This work was supported by the EC through contracts IST-2001-38951 (“DNA-Based Nanowires”) and FP6-029192 (“DNA-Based Nanodevices”). Y.B. thanks the Israel Ministry of Absorption for the graduate scholarship.

Keywords

DNA
Nanowires
Polyaniline

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10.1016/j.polymer.2008.03.014

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title = "Formation of polyaniline layer on DNA by electrochemical polymerization",

abstract = "We report the electropolymerization and characterization of polyaniline (PAN) on both DNA monolayer and single poly(dG)-poly(dC) DNA molecules serving as a template. The synthesis includes the formation of an electrostatic complex between the negatively charged DNA and positively charged anilinium ions followed by electrochemical oxidation and polymerization of the anilinium ions' monomers on the DNA template. The polymerization was carried out on a flame annealed gold substrate modified with positively charged self-assembled 4-aminothiophenol (4-ATPh) monolayer. The resulting monolayers and single macromolecular composites of DNA-PAN were characterized by atomic force microscopy (AFM), cyclic voltammetry (CV) impedance and UV-vis spectroscopy.",

keywords = "DNA, Nanowires, Polyaniline",

author = "Yosef Bardavid and Jamal Ghabboun and Danny Porath and Kotylar, {Alexander B.} and Shlomo Yitzchaik",

note = "Funding Information: This work was supported by the EC through contracts IST-2001-38951 (“DNA-Based Nanowires”) and FP6-029192 (“DNA-Based Nanodevices”). Y.B. thanks the Israel Ministry of Absorption for the graduate scholarship. ",

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doi = "10.1016/j.polymer.2008.03.014",

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AU - Bardavid, Yosef

AU - Ghabboun, Jamal

AU - Porath, Danny

AU - Kotylar, Alexander B.

AU - Yitzchaik, Shlomo

N1 - Funding Information: This work was supported by the EC through contracts IST-2001-38951 (“DNA-Based Nanowires”) and FP6-029192 (“DNA-Based Nanodevices”). Y.B. thanks the Israel Ministry of Absorption for the graduate scholarship.

PY - 2008/4/29

Y1 - 2008/4/29

N2 - We report the electropolymerization and characterization of polyaniline (PAN) on both DNA monolayer and single poly(dG)-poly(dC) DNA molecules serving as a template. The synthesis includes the formation of an electrostatic complex between the negatively charged DNA and positively charged anilinium ions followed by electrochemical oxidation and polymerization of the anilinium ions' monomers on the DNA template. The polymerization was carried out on a flame annealed gold substrate modified with positively charged self-assembled 4-aminothiophenol (4-ATPh) monolayer. The resulting monolayers and single macromolecular composites of DNA-PAN were characterized by atomic force microscopy (AFM), cyclic voltammetry (CV) impedance and UV-vis spectroscopy.

AB - We report the electropolymerization and characterization of polyaniline (PAN) on both DNA monolayer and single poly(dG)-poly(dC) DNA molecules serving as a template. The synthesis includes the formation of an electrostatic complex between the negatively charged DNA and positively charged anilinium ions followed by electrochemical oxidation and polymerization of the anilinium ions' monomers on the DNA template. The polymerization was carried out on a flame annealed gold substrate modified with positively charged self-assembled 4-aminothiophenol (4-ATPh) monolayer. The resulting monolayers and single macromolecular composites of DNA-PAN were characterized by atomic force microscopy (AFM), cyclic voltammetry (CV) impedance and UV-vis spectroscopy.

KW - DNA

KW - Nanowires

KW - Polyaniline

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Formation of polyaniline layer on DNA by electrochemical polymerization

Abstract

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Keywords

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