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A molecular-diversity-oriented approach for the preparation of well-defined polycationic amphiphilic cyclodextrins (paCDs) as gene-delivery systems is reported. The synthetic strategy takes advantage of the differential reactivity of primary versus secondary hydroxyl groups on the CD torus to regioselectively decorate each rim with cationic elements and… (More)
Fully homogeneous facial amphiphiles consisting in a cyclodextrin (CD) platform onto which a polycationic cluster and a multi-tail hydrophobic moiety have been installed (polycationic amphiphilic CDs; paCDs) self-organized in the presence of plasmid DNA to form nanometric complexes (CDplexes) which exhibit broad-range transfection capabilities. We… (More)
Monodisperse facial amphiphiles consisting of a β-cyclodextrin (βCD) platform exposing a multivalent display of cationic groups at the primary rim and bearing hydrophobic chains at the secondary oxygens have been prepared by implementing two very robust "click" methodologies, namely cuprous cation-catalyzed azide-alkyne cycloaddition (CuAAC) and… (More)
One of the most important threats for Android users is the collection of private data by malware put on the market. Most of the proposed approaches that help to guarantee the user's privacy rely on modified versions of the Android operating system. In this paper, we propose to automatically detect when an application accesses private data and to log this… (More)
An efficient general strategy for the incorporation of functional elements onto the secondary hydroxyl rim of beta-cyclodextrin has been developed and applied to the synthesis of a novel series of C7-symmetric homogeneous macromolecular polycations with improved DNA complexing and delivery properties.
Cytochrome P450 CYP26 enzymes are responsible for all-trans-retinoic acid (atRA) clearance. Inhibition of CYP26 enzymes will increase endogenous atRA concentrations and is an attractive therapeutic target. However, the selectivity and potency of the existing atRA metabolism inhibitors toward CYP26A1 and CYP26B1 is unknown, and no selective CYP26A1 or… (More)