Supramolecular Assembly of Gold Nanoparticles Mediated by Polypseudorotaxane with Thiolated β-Cyclodextrin

✍ Scribed by Yu Liu; Yan-Li Zhao; Yong Chen; Min Wang

• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 250 KB
• Volume: 26
• Category: Article
• ISSN: 1022-1336
• DOI: 10.1002/marc.200400476

✦ Synopsis

Abstract

Summary: A water‐soluble gold nanoparticle aggregate 2 was prepared by chloroauric acid and a polypseudorotaxane 1 of mono‐6‐thio‐β‐cyclodextrin with poly(propylene glycol) bis(2‐aminopropyl ether) ($\overline M _{\rm w}$ ≈ 2 000) in the presence of sodium borohydride in N,N‐dimethylformamide (DMF) solution. The investigative results indicated that the gold nanoparticle aggregate 2 might act as an efficient DNA‐cleavage reagent.

A typical TEM image of gold nanoparticle aggregate 2.

magnified imageA typical TEM image of gold nanoparticle aggregate 2.