Abstract:
:New designs for Magnetic Resonance Imaging contrast agents are presented. Essentially, they all are host-guest inclusion complexes between y-cyclodextrins and polyazamacrocycles of gadolinium (III) ion. Substitutions have been made to the host to optimise the host-guest association. Molecular mechanics calculations have been performed, using the UFF force field for metals, to decide on the suitability of the substitutions, and to evaluate the host-guest energies of association. Interesting general conclusions have been obtained, concerning the improvement of Magnetic Resonance Imaging contrast agents; namely, a set of rational methodologies have been deduced to improve the association between the gadolinium (III) chelates and the cyclodextrins, and their efficiency is demonstrated with a large set of substituted complexes, opening new doors to increase the diagnostic capabilities of Magnetic Resonance Imaging.
journal_name
J Comput Aided Mol Desjournal_title
Journal of computer-aided molecular designauthors
Fernandes PA,Carvalho AT,Marques AT,Pereira AL,Madeira AP,Ribeiro AS,Carvalho AF,Ricardo ET,Pinto FJ,Santos HA,Mangericão HD,Martins HM,Pinto HD,Santos HR,Moreira IS,Azeredo MJ,Abreu RP,Oliveira RM,Sousa SF,Silva RJdoi
10.1023/a:1027347527385subject
Has Abstractpub_date
2003-07-01 00:00:00pages
463-73issue
7eissn
0920-654Xissn
1573-4951journal_volume
17pub_type
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