Functionalization of PAMAM dendrimers with nitronyl nitroxide radicals as models for the outer‐sphere relaxation in dentritic potential MRI contrast agents | Zendy

Francese Giancarlo | Zendy; Dunand Frank A. | Zendy; Loosli Claudia | Zendy; Merbach André E. | Zendy; Decurtins Silvio | Zendy

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Functionalization of PAMAM dendrimers with nitronyl nitroxide radicals as models for the outer‐sphere relaxation in dentritic potential MRI contrast agents

Author(s) -

Francese Giancarlo,

Dunand Frank A.,

Loosli Claudia,

Merbach André E.,

Decurtins Silvio

Publication year - 2003

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1151

Subject(s) - chemistry , dendrimer , radical , nitroxide mediated radical polymerization , electron paramagnetic resonance , relaxation (psychology) , surface modification , inner sphere electron transfer , nuclear magnetic resonance , polymer chemistry , polymer , organic chemistry , monomer , radical polymerization , psychology , social psychology , physics , ion

PAMAM dendrimers functionalized with nitronyl nitroxide radicals were characterized. Quantitative determination of substitution with radicals was performed using EPR and electrochemical methods. The study of the 1 H NMR relaxation of the surrounding water showed how the outer‐sphere contribution to the relaxivity may be limited by the presence of the dendrimer core. Copyright © 2003 John Wiley & Sons, Ltd.

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