English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 18033/20233 (89%)
造訪人次 : 23241547      線上人數 : 291
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: https://ir.cnu.edu.tw/handle/310902800/23304


    標題: Lipid nanoparticles with different oil/fatty ester ratios as carriers of buprenorphine and its prodrugs for injection
    作者: Jhi-Joung Wang
    Kuo-Sheng Liu
    K.C. Sung
    Chia-Yin Tsai
    Jia-You Fang
    貢獻者: 藥物科技研究所
    關鍵字: Buprenorphine
    Prodrug
    Lipid nanoparticles
    Solid lipid nanoparticles
    Nanostructured lipid carriers
    Injection
    日期: 2009-09
    上傳時間: 2010-12-29 14:19:41 (UTC+8)
    出版者: Elsevier
    摘要: Buprenorphine is a promising drug for the treatment of chronic pain and opioid dependence. The aim of the present work was to evaluate the feasibility of lipid nanoparticles with different oil/fatty ester ratios for injection of buprenorphine. To improve the release properties and analgesic duration of the drug, ester prodrugs were also incorporated into the nanoparticles for evaluation. Linseed oil and cetyl palmitate were respectively chosen as the liquid lipid and solid lipid in the inner phase of the nanoparticulate systems. Differential scanning calorimetry (DSC) was performed, and the particle size, zeta potential, molecular environment, and lipid/water partitioning were determined to characterize the state of the drug/prodrug and lipid modification. The in vitro release kinetics were measured by a Franz assembly. DSC showed that systems without oil (solid lipid nanoparticles, SLNs) had a more ordered crystalline lattice in the inner matrix compared to those with oil (nanostructured lipid carriers, NLCs and lipid emulsion, LE). The mean diameter of the nanoparticles ranged between 180 and 200 nm. The in vitro drug/prodrug release occurred in a delayed manner in decreasing order as follows: SLN > NLC > LE. It was found that the release rate was reduced following an increase in alkyl ester chains in the prodrugs. The in vivo antinociception was examined by a cold ethanol tail-flick test in rats. Compared to an aqueous solution, a prolonged analgesic duration was detected after an intravenous injection of buprenorphine-loaded SLNs and buprenorphine propionate (Bu-C3)-loaded NLCs (with 10% linseed oil in the lipid phase). The Bu-C3 in NLCs even showed a maximum antinociceptive activity for 10 h. In vitro erythrocyte hemolysis and lactate dehydrogenase (LDH) release from neutrophils demonstrated a negligible toxicity of these carriers. Our results indicate the feasibility of using lipid nanoparticles, especially SLNs and NLCs, as parenteral delivery systems for buprenorphine and its prodrugs.
    關聯: European Journal of Pharmaceutical Sciences 38(2):p.138-146
    顯示於類別:[藥學系(所)] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML2414檢視/開啟


    在CNU IR中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回饋