Stable Single-Walled Carbon Nanotube−Streptavidin Complex for Biorecognition

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• 作者：Zunfeng Liu ; Federica Galli ; Kjeld G. H. Janssen ; Linhua Jiang ; Heiko J. van der Linden ; Danil C. de Geus ; Patrick Voskamp ; Maxim E. Kuil ; Ren C. L. Olsthoorn ; Tjerk. H. Oosterkamp ; Thomas Hankemeier
• 刊名：Journal of Physical Chemistry C
• 出版年：2010
• 出版时间：March 18, 2010
• 年：2010
• 卷：114
• 期：10
• 页码：4345-4352
• 全文大小：352K
• 年卷期：v.114,no.10(March 18, 2010)
• ISSN：1932-7455

文摘

A novel method is described for preparing single walled carbon nanotube (SWNT)−streptavidin complexes via the biotin−streptavidin recognition. The complex shows stability in 18 days, strong biotin recognition capability, and excellent loading capacity (about 1 streptavidin tetramer per 20 nm of SWNT). Capturing biotinylated DNA, fluorophores, and Au nanoparticles (NPs) on the SWNT−streptavidin complexes demonstrates their usefulness as a docking matrix, for instance for electron microscopy studies, a technique requiring a virtually electron transparent support.