Characteristics of niosomes prepared by supercritical carbon dioxide (scCO2) fluid

被引：63

作者：

Manosroi, Aranya ^{[1
,2
]}

Chutoprapat, Romchat ^{[1
]}

Abe, Masahiko ^{[3
]}

Manosroi, Jiradej ^{[1
,2
]}

机构：

[1] Chiang Mai Univ, Fac Pharm, Chiang Mai 50200, Thailand

[2] Chiang Mai Univ, Pharmaceut Cosmet Raw Mat & Nat Prod Res & Dev Ct, Inst Sci & Technol Res & Dev, Chiang Mai 50200, Thailand

[3] Tokyo Univ Sci, Dept Pure & Appl Chem, Fac Sci & Technol, Chiba 2641, Japan

来源：

INTERNATIONAL JOURNAL OF PHARMACEUTICS | 2008年 / 352卷 / 1-2期

关键词：

niosomes; supercritical carbon dioxide; conventional method; water-soluble compounds; trapping efficiency;

D O I：

10.1016/j.ijpharm.2007.10.013

中图分类号：

R9 [药学];

学科分类号：

1007 ;

摘要：

Characteristics of niosomes prepared by a novel supercritical carbon dioxide fluid (scCO(2)) technique have been investigated. Niosomes were composed of Tween61/cholesterol at 1:0, 3:1, 1:1, 1:3 and 0:1 molar ratios and entrapped with D-(+)-glucose by the scCO(2) method without and with ethanol at 5, 10 and 15% (w/w) as a co-solvent, and the conventional chloroform film method with sonication. Tween61/cholesterol at 1:1 molar ratio niosomes prepared by all methods exhibited the best physical stability. Niosomes by the scCO(2) method with 10% (w/w) ethanol gave higher trapping efficiency (12.22 +/- 0.26%) than those by the conventional chloroform film method with sonication (10.85 +/- 0.24%) and the scCO(2) method without ethanol (8.40 +/- 1.60%). Niosomes by the scCO(2) method with and without ethanol were larger unilamellar structure under TEM with the average sizes of 271.9 +/- 159.6 and 202.5 +/- 136.7 nm, respectively, whereas those by the conventional chloroform film method with sonication were multilamellar and unilamellar structure with the average size of 58.4 +/- 74.6 nm. However, the dispersibility of niosomes by the conventional chloroform film method with sonication was better than that by the scCO(2) either with or without ethanol, because of smaller particle size. This present study has demonstrated the trapping efficiency enhancement of water-soluble compounds in niosomes by the scCO(2) method with 10% (w/w) of ethanol. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：248 / 255

页数：8

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