NDLI: Colloidal stability of carbon nanotubes in an aqueous dispersion of phospholipid

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Colloidal stability of carbon nanotubes in an aqueous dispersion of phospholipid

Content Provider	Semantic Scholar
Author	Douroumis, Dionysios Dennis Fatouros, Dimitrios G. Bouropoulos, Nikolaos Papagelis, Kostas Tasis, Dimitrios
Copyright Year	2007
Abstract	Within the family of nanomaterials, carbon nanotubes (CNTs) have emerged as a new efficient scaffold for studying molecular interactions at interfaces. Poor dispersability of CNTs in any solvent presents a considerable drawback for the development of novel functional composite structures. Previous studies have demonstrated that the solubility of CNTs can be greatly enhanced by employing appropriate surfactants, some of them being biological molecules. In this work, we study the noncovalent wrapping of lipid chains onto the graphitic surface of single-walled material (SWCNTs) by electron microscopy and Raman spectroscopy. Stable and homogenous aqueous suspensions of SWCNTs in the presence of lipids have been prepared, whereas their electrophoretic mobility was confirmed by zeta-potential measurements. Raman measurements revealed that smaller diameter SWCNTs are preferentially dispersed by lipid molecules in the aqueous supernatant part of the prepared suspension.
Starting Page	761
Ending Page	766
Page Count	6
File Format	PDF HTM / HTML
PubMed reference number	18203442v1
Volume Number	2
Journal	International journal of nanomedicine
Language	English
Access Restriction	Open
Subject Keyword	Diameter (qualifier value) Electron Microscopy Nanostructured Materials Nanotubes Nanotubes, Carbon Phospholipids Small Supernatant Suspension substance Suspensions
Content Type	Text
Resource Type	Article

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