http://www.cnr.it/ontology/cnr/individuo/prodotto/ID250108
Self assembling cyclodextrin systems-from vesicles to genocomplexes (Contributo in atti di convegno)
- Type
- Label
- Self assembling cyclodextrin systems-from vesicles to genocomplexes (Contributo in atti di convegno) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Alternative label
DARCY R; RAVOO B.J; MAZZAGLIA A; KAN E; ODRISCOLL C (2004)
Self assembling cyclodextrin systems-from vesicles to genocomplexes
in XIIth International Symposium on Cyclodextrins, Montpellier, 16-19 May 2004
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- DARCY R; RAVOO B.J; MAZZAGLIA A; KAN E; ODRISCOLL C (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
- Proceedings of XIIth International Symposium on Cyclodextrins (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- UCD, Dublin; CNR-ISMN UOS Palermo c/o Università di Messina; TCD, Dublin (literal)
- Titolo
- Self assembling cyclodextrin systems-from vesicles to genocomplexes (literal)
- Abstract
- The concept of cooperativity between cyclodextrin host molecules is
essential for the attainment of better binding constants for such purposes as
the targeting of complexed drugs to their biological sites of action. Recent
advances in supramolecular, non-bonded approaches to attaining
cooperativity are reviewed here.
Amphiphilic cyclodextrins can form monolayers and nanoparticles,
thermotropic liquid crystals or micelles. More recent examples form bilayer
vesicles. Amphiphilic cyclodextrins with alkylthio chains at the primaryhydroxyl
side and oligo-(ethylene glycol) units at the secondary-hydroxyl side
form colloidal assemblies, and where these are vesicular they encapsulate
both polar and hydrophobic guest molecules as complexes which are stable
towards dilution. When modified with surface glycosyl groups for targeting,
they show multivalent effects in their binding to lectin.
Polyionic cyclodextrins can exploit multiple interactions to assemble in water.
Use of ionic CDs in polyelectrolyte multilayers has been shown to modulate
the bioactivity of a compound complexed within the layers.
Amphiphilic cyclodextrins have also been proposed as molecular templates
for the development of a new series of gene delivery vectors. Comparison of
polycationic examples with analogous polycationic amphiphilic CDs, has
shown that amphiphilicity is important for vector activity. (literal)
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