Macromolecular Rapid Communications, Vol.26, No.5, 401-406, 2005
Supramolecular assembly of gold nanoparticles mediated by polypseudorotaxane with thiolated beta-cyclodextrin
A water-soluble gold nanoparticle aggregate 2 was prepared by chloroauric acid and a polypseudorotaxane 1 of mono-6-thio-beta-cyclodextrin with poly(propylene glycol) bis(2-aminopropyl ether) ((M) over bar (w) approximate to 2000) 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.