1188292-64-9Relevant articles and documents
A novel SWCNT platform bearing DOTA and β-cyclodextrin units. "one shot" multidecoration under microwave irradiation
Calcio Gaudino,Tagliapietra,Martina,Barge,Lolli,Terreno,Lembo,Cravotto
, p. 4708 - 4715 (2014)
The functionalization of single-walled carbon nanotubes (SWCNTs) via microwave-assisted grafting reactions enables efficient multidecoration in a single step. A novel water-soluble SWCNT platform was prepared via the simple 1,3-dipolar cycloaddition of azomethine ylides under dielectric heating. Thanks to a single grafting reaction the CNT surface binds in a 1:1 ratio an amino acidic β-cyclodextrin (β-CD) derivative and the DOTAMA moiety (1,4,7,10-tetraazacyclododecane-N,N′,N′′,N′′ ′-tetraacetic acid monoamide). This novel "one shot" synthesis, compared with multistep functionalizations, preserves the SWCNT's structural integrity (TEM images). Besides thermogravimetric analyses, the determination of the amount of β-CD and DOTA moieties grafting onto the SWCNT's surface was performed on the basis of phenolphthalein and gadolinium complexation, respectively. This journal is