کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1175441 961801 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The high dispersion of DNA–multiwalled carbon nanotubes and their properties
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
The high dispersion of DNA–multiwalled carbon nanotubes and their properties
چکیده انگلیسی

DNA-wrapped multiwalled carbon nanotubes (MWCNTs) were successfully obtained by a simple sonication treatment method. The obtained materials were characterized in detail by Raman spectroscopy and scanning electron microscopy (SEM). An SEM image showed that MWCNTs were dispersed sufficiently and covered entirely with DNA. This resulted in high aqueous solubility of the products, with a stability of more than several months. The interaction between DNA and MWCNTs was confirmed by Raman measurements and was ascribed to the strong π–π interactions between the backbones of DNA and the surface of carbon nanotubes. The cyclic voltammograms showed that the composite exhibited excellent electrochemical properties. Experimental results also revealed that the high dispersion of DNA-assisted MWCNTs presented a better property compared with pristine MWCNTs. This facile method for obtaining water-soluble MWCNTs has great potential application for both bioscience and biotechnology.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytical Biochemistry - Volume 387, Issue 2, 15 April 2009, Pages 267–270
نویسندگان
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