Cationic β-cyclodextrin polymer applied to a dual cyclodextrin polyelectrolyte multilayer system.
A polyelectrolyte multilayer film (PEM) based on cationic and anionic β-cyclodextrin polyelectrolytes was coated onto a textile substrate for future drug delivery purposes. We firstly synthesized a novel cationic β-cyclodextrin polymer (polyEPG-CD) by crosslinking β-cyclodextrin (βCD) with epichlorohydrin (EP) under basic conditions, in the presence of glycidyltrimetrylammonium chloride (GTMAC) as cationizing group. The influence of preparation conditions has been investigated in order to preferably obtain a water soluble fraction whose charge density and molecular weights were optimal for the layer-by-layer (LbL) deposition process. The different cationic cyclodextrin polymers obtained were characterized by FTIR, NMR, colloidal titration, conductimetry, thermogravimetric analysis and size exclusion chromatography. Besides, the counterpart polyelectrolyte was a β-cyclodextrin polymer crosslinked with citric acid, polyCTR-CD, whose synthesis and characterization have been previously reported. Finally we realized the Layer by Layer (LbL) build-up of the PEM coating onto the textile support, using the dip coating method, by alternatively soaking it in cationic polyEPG-CD and anionic polyCTR-CD solutions. This multilayer self-assembly was monitored by SEM, gravimetry and OWLS in function of both polyelectrolytes concentrations and ratios. Solutions parameters such as pH, ionic strenght were also discussed.
Université Lille 1, Unité Matériaux et Transformations (UMET) UMR CNRS 8207, Villeneuve d'Ascq, France.
Jatupol
J
Junthip
Université Lille 1, Unité Matériaux et Transformations (UMET) UMR CNRS 8207, Villeneuve d'Ascq, France.
Nicolas
N
Tabary
Université Montpellier 1 and 2, Institut des Biomolécules Max Mousseron (IBMM) UMR CNRS 5247, Montpellier, France.
Laurent
L
Leclercq
Université Lille 1, Unité Matériaux et Transformations (UMET) UMR CNRS 8207, Villeneuve d'Ascq, France. Electronic address: bernard.martel@univ-lille1.fr.
Bernard
B
Martel
D002412:Cations / Q000138:chemical synthesis / Q000737:chemistry; D003432:Cross-Linking Reagents / Q000138:chemical synthesis / Q000737:chemistry; D016503:Drug Delivery Systems; D004811:Epichlorohydrin / Q000138:chemical synthesis / Q000737:chemistry*; D004852:Epoxy Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D013784:Textiles / Q000032:analysis; D047392:beta-Cyclodextrins / Q000138:chemical synthesis / Q000737:chemistry*
D002412:Cations; D003432:Cross-Linking Reagents; D004852:Epoxy Compounds; D011108:Polymers; D000644:Quaternary Ammonium Compounds; D047392:beta-Cyclodextrins; D004811:Epichlorohydrin; C045006:glycidyl trimethylammonium; C031215:betadex
Drug delivery system; Epichlorohydrin; Layer-by-layer; Polyelectrolytes multilayer system (PEM); Textile; β-Cyclodextrin-polymer