PMID- 20804201 OWN - NLM STAT- MEDLINE DCOM- 20110224 LR - 20181201 IS - 1526-4602 (Electronic) IS - 1525-7797 (Linking) VI - 11 IP - 10 DP - 2010 Oct 11 TI - Synthesis and characterization of amphiphilic lipopolymers for micellar drug delivery. PG - 2610-20 LID - 10.1021/bm100561v [doi] AB - The objective of this study was to design lipopolymers for hydrophobic drug delivery. Poly(ethylene glycol)-block-poly(2-methyl-2-carboxyl-propylene carbonate-graft-dodecanol) (PEG-PCD) lipopolymers were synthesized and characterized by (1)H NMR, FT-IR, GPC, and DSC. The critical micelle concentration (CMC) of PEG-PCD micelles was around 10(-8) M and decreased with increasing length of hydrophobic block. PEG-PCD micelles could efficiently load a model drug embelin into its hydrophobic core and significantly improve its solubility. The loading capacity was dependent on the polymer core structure, but the length of hydrophobic core had little effect. PEG-PCD formed both spherical and cylindrical micelles, which were dependent on the copolymer structure and composition. PEG-PCD lipopolymers with various hydrophobic core lengths showed similar drug release profiles, which were slower than that of poly(ethylene glycol)-block-poly(2-methyl-2-benzoxycarbonyl-propylene carbonate) (PEG-PBC) micelles. Embelin loaded PEG-PCD micelles showed significant inhibition of C4-2 prostate cancer cell proliferation, while no obvious cellular toxicity was observed for blank micelles. FAU - Li, Feng AU - Li F AD - Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN 38103, USA. FAU - Danquah, Michael AU - Danquah M FAU - Mahato, Ram I AU - Mahato RI LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Biomacromolecules JT - Biomacromolecules JID - 100892849 RN - 0 (Antineoplastic Agents) RN - 0 (Benzoquinones) RN - 0 (Drug Carriers) RN - 0 (Micelles) RN - 0 (Polyesters) RN - 0 (Surface-Active Agents) RN - 0 (poly(ethylene glycol)-block-poly(2-methyl-2-carboxylpropylene carbonate-graft-dodecanol)) RN - 3WJQ0SDW1A (Polyethylene Glycols) RN - SHC6U8F5ER (embelin) SB - IM MH - Antineoplastic Agents/administration & dosage/pharmacology MH - Benzoquinones/administration & dosage/pharmacology MH - Calorimetry, Differential Scanning MH - Cell Line, Tumor MH - Cell Proliferation/drug effects MH - Cell Survival/drug effects MH - Chromatography, Gel MH - Drug Carriers/*chemical synthesis/chemistry MH - Humans MH - Male MH - Micelles MH - Microscopy, Electron, Transmission MH - Particle Size MH - Polyesters/*chemical synthesis/chemistry MH - Polyethylene Glycols/*chemical synthesis/chemistry MH - Polymerization MH - Prostatic Neoplasms MH - Solubility MH - Spectroscopy, Fourier Transform Infrared MH - Surface Properties MH - Surface-Active Agents/*chemical synthesis/chemistry EDAT- 2010/09/02 06:00 MHDA- 2011/02/25 06:00 CRDT- 2010/09/01 06:00 PHST- 2010/09/01 06:00 [entrez] PHST- 2010/09/02 06:00 [pubmed] PHST- 2011/02/25 06:00 [medline] AID - 10.1021/bm100561v [doi] PST - ppublish SO - Biomacromolecules. 2010 Oct 11;11(10):2610-20. doi: 10.1021/bm100561v.