Experimental Evidence of Single-Stranded DNA Adsorption on Multiwalled Carbon Nanotubes

The Journal of Physical Chemistry. B
Franco TardaniFederico Bordi

Abstract

Noncovalent DNA functionalization is one of the most used routes for the easy dispersion of carbon nanotubes (CNTs) yielding DNA-CNTs complexes with promising applications. Definition of the structure of adsorbed DNA is crucial, but the organization of polymer at the carbon interface is far from being understood. In comparison to single-walled nanotubes, not much effort has been devoted to assessing the structure of the adsorbed DNA on multiwalled carbon nanotubes (MWCNTs), where their metallic nature, large size, and polydispersity represent serious obstacles for both experimental and theoretical studies. As a contribution to fill this lack in these aspects, we investigated DNA-MWCNT complexes by dielectric spectroscopy (DS) which is sensitive to even small changes in the charge distribution at charged interfaces and was largely employed in studying the electric and conformational properties of polyelectrolytes, such as DNA, in aqueous solutions and at interfaces. The dielectric relaxation in the MHz range is the signature of DNA adsorption on CNTs and sheds light on its conformational properties. A detailed analysis of the conductivity of the DNA-MWCNT suspensions unequivocally proves that DNA is adsorbed in a single-stranded...Continue Reading

References

Jan 15, 2000·The Journal of Biological Chemistry·G L LukacsA S Verkman
Apr 15, 2003·Nature Materials·Ming ZhengNancy G Tassi
Jul 12, 2005·Biomacromolecules·Mónica RosaBjörn Lindman
Oct 20, 2005·Current Opinion in Chemical Biology·Alberto BiancoMaurizio Prato
Jul 21, 2006·The Journal of Physical Chemistry. B·Steven Raymond LustigMing Zheng
Oct 10, 2006·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·F BordiD Viscomi
Jan 19, 2007·The Journal of Chemical Physics·F BordiD Viscomi
Mar 16, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·S TomićR Podgornik
Dec 12, 2007·Nano Letters·Robert R JohnsonMichael L Klein
Sep 3, 2008·Journal of the American Chemical Society·Helen CathcartJonathan N Coleman
May 21, 2009·Analytical Biochemistry·Zhenzi LiKang Li
Jun 3, 2002·Angewandte Chemie·Andreas Hirsch
Jan 11, 2011·Journal of Colloid and Interface Science·F BomboiF Tardani
May 24, 2011·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·T VuletićS Tomić
Dec 29, 2011·Proceedings of the National Academy of Sciences of the United States of America·Huimin ChenLois Pollack
Sep 10, 2013·Physical Chemistry Chemical Physics : PCCP·Anindya MajumderGianaurelio Cuniberti
Jan 15, 2014·The Journal of Physical Chemistry. B·Marta GubitosiLuciano Galantini
Oct 21, 2017·Journal of the American Chemical Society·Daniel P SalemMichael S Strano
Dec 11, 2017·International Journal of Biological Macromolecules·S GuptaC Ratna Prabha

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