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Article: Nanotubes coated with polymer multilayers for biosensors.(Nanomaterials)
- Article from:
- Advanced Composites Bulletin
- Article date:
- November 1, 2003
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Researchers from Rensselaer Polytechnic Institute, USA, have bonded polymer multilayers to carbon nanotubes in a non-covalent manner. The layered nanocomposite could find applications in areas such as biosensors, it is reported.
In their research, Dr Ravi Kane and colleagues placed the nanotubes in an aqueous solution of hydrolyzed-poly(styrene-alt-maleic anhydride) (h-PSMA) polymer. Hydrophobic interactions caused the polymer to adsorb non-covalently onto the nanotube surface. Then the team used the carboxylic acid groups in the h-PSMA to form covalent bonds to the polymer polyethyleneimine (PEI). This created a cross-linked polymer bilayer. According to Kane, ...