Selective attachment of gold nanoparticles to nitrogen-doped carbon nanotubes
Selective attachment of gold nanoparticles to nitrogen-doped carbon nanotubes
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DOI：
10.1021/nl025914t
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发表时间：
2003-03-01
期刊：
影响因子：
10.8
通讯作者：
Terrones, M
中科院分区：
文献类型：
--
作者：
Jiang, KY;Eitan, A;Terrones, M
金纳米粒子选择性地附着在氮掺杂碳（CN(x)）纳米管的化学功能化表面位点上。一种阳离子聚电解质通过化学氧化纳米管表面的羧基与聚电解质链之间的静电相互作用吸附在纳米管表面。来自金胶体悬浮液的带负电的10纳米金纳米粒子随后通过聚电解质与纳米粒子之间的静电相互作用锚定在纳米管表面。这种方法为将其他纳米结构附着到碳纳米管上提供了一种有效的方法，并且可用于对碳纳米管表面的官能团进行示例检测。
Gold nanoparticles were selectively attached to chemically functionalized surface sites on nitrogen-doped carbon (CN(x)) nanotubes. A cationic polyelectrolyte was adsorbed on the surface of the nanotubes by electrostatic interaction between carboxyl groups on the chemically oxidized nanotube surface and polyelectrolyte chains. Negatively charged 10 nm gold nanoparticles from a gold colloid suspension were subsequently anchored to the surface of the nanotubes through the electrostatic interaction between the polyelectrolyte and the nanoparticles. This approach provides an efficient method to attach other nanostructures to carbon nanotubes and can be used as an illustrative detection of the functional groups on carbon nanotube surfaces.