醉酒后少妇被疯狂内射视频,一本色道久久综合一,在线天堂新版资源www在线下载,中文字幕乱人伦高清视频,中字幕视频在线永久在线观看免费

Archive > Volume 4 Issue 3 > 2012,4(3):224-229. DOI:10.3969/j.issn.1674-6384.2012.03.009 Prev Next

Original articles

Physicochemical Properties and Gastric Mucosa Irritation of Cantharidin-hydroxypropyl-β-cyclodextrin Inclusion Complex

  • Article
  • Figures
  • Metrics
  • Preview PDF
  • Reference
  • Related
  • Cited by
  • Materials
    摘要:


    Abstract:
    Objective To increase the solubility and relieve the mucous irritation of cantharidin (CA) by preparing cantharidin-hydroxypropyl-β-cyclodextrin (CA/HP-β-CD) inclusion complex. Methods The inclusion complex was prepared by co-evaporation method and characterized by differential scanning calorimetry (DSC), X-ray diffractometry (XRD), and nuclear magnetic resonance (NMR). Results The disappearance of CA as well as the shift of exothermic peaks shown in DSC results indicated the complexation phenomenon. XRD results showed that the crystalline CA pattern had disappeared, and in NMR results, H-5 shifted from δ 3.731 to 3.695 after complexation and H-2 shifted from δ 3.626 to 3.598, which suggested that part of the drug had entered the HP-β-CD cavity to form an inclusion complex. The solubility increased 10.3 times after complexation and the mucous irritation of CA was relieved remarkably. Conclusion Through complexation with HP-β-CD, the solubility and dissolution rate of CA are improved significantly, and the irritation of musous is relieved.

    關(guān)鍵詞:


    Keywords:


    Project Supported:
    National S&T Major Special Project on Major New Drug Innovation (2009ZX09301-003&2008ZX09103-390)

    Clc Number:

WeChat

Mobile website