title: Self-assembled micelles based on hydrophobically modified quaternized cellulose for drug delivery.
abstract: Novel amphiphilic cationic cellulose (HMQC) derivatives carrying long chain alkyl groups as hydrophobic moieties and quaternary ammonium groups as hydrophilic moieties were synthesized. Structure and properties of the amphiphilic cellulose derivatives were characterized by elemental analysis, FT-IR, (1)H NMR, ζ-potential measurement, dynamic light scattering (DLS), fluorescence spectroscopy and transmission electron microscopy (TEM). The results revealed that HMQCs can be self-assembled into cationic micelles in distilled water with the average hydrodynamic radius of 320-430 nm. The cytotoxicity study showed that the HMQC exhibited low cytotoxicity. Prednisone acetate, a water insoluble anti-inflammation drug, was chosen as a model drug to investigate the utilization of self-assembled HMQC micelles as a delivery carrier for poorly water-soluble drugs. The study indicated that the prednisone acetate could be incorporated effectively in the self-assembled HMQC micelles and be controlled released.
authors.affiliation: Department of Chemistry, Wuhan University, Luojia Hill, Wuhan 430072, China.
authors.forename: Yongbo
authors.initials: Y
authors.lastname: Song
authors.forename: Lingzhi
authors.initials: L
authors.lastname: Zhang
authors.forename: Weiping
authors.initials: W
authors.lastname: Gan
authors.forename: Jinping
authors.initials: J
authors.lastname: Zhou
authors.forename: Lina
authors.initials: L
authors.lastname: Zhang
mesh_terms: D000818:Animals; D019556:COS Cells; D002470:Cell Survival / Q000187:drug effects; D002482:Cellulose / Q000031:analogs & derivatives / Q000737:chemistry* / Q000494:pharmacology; D002522:Chlorocebus aethiops; D016503:Drug Delivery Systems; D004353:Drug Evaluation, Preclinical; D057927:Hydrophobic and Hydrophilic Interactions; D008823:Micelles; D015394:Molecular Structure; D010316:Particle Size; D000644:Quaternary Ammonium Compounds / Q000737:chemistry* / Q000494:pharmacology; D013499:Surface Properties
chemical_list: D008823:Micelles; D000644:Quaternary Ammonium Compounds; D002482:Cellulose