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The present paper introduces a facile and cost-effective route for the direct dispersion of multi-walled carbon nanotubes (MWCNTs) in DNA solution. Their application in detecting Escherichia coli O157:H7 using DNA biosensor was demonstrated. The dispersion state of the MWCNTs was characterized via UV–Vis spectroscopy, transmission electron microscopy, and field emission scanning electron microscopy...
Atomic force microscopy was used to characterize the dimensions and the mechanical properties of DNA/carbon nanotube hybrid structures formed by conjugating single-stranded DNAs with single-walled carbon nanotubes in an aqueous medium. On an average about 60% of the carbon nanotube was covered with DNA after conjugation. Nanoindentation data indicates that the radial Young's modulus of the hybrid...
DNA has been recognized as an efficient dispersion agent that individually exfoliate and chirality-fractionate single wall carbon nanotubes (SWCNTs) according to their diameter and metallicity. Amongst, single stranded d(GT)n DNA has been known to efficiently disperse individual-level nanotube and mediate their subsequent chirality separation, when eluted from an anion exchange column at various salt...
We have investigated uniform carbon nanotube (CNT) dispersion in a solution and fabrication of CNT thin films on solid surfaces. To prevent bundle formation, we have examined surface modification of both the CNT surfaces and the substrate surfaces. To enhance the interaction between surfaces of the substrate and the CNTs, the substrate surfaces were made hydrophobic, because CNTs are generally hydrophobic...
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