Effect of Process Parameters on Co-precipitation of Paclitaxel and Poly(L-lactic Acid) by Supercritical Antisolvent Process
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Effect of Process Parameters on Co-precipitation of Paclitaxel and Poly(L-lactic Acid) by Supercritical Antisolvent Process
Effect of Process Parameters on Co-precipitation of Paclitaxel and Poly(L-lactic Acid) by Supercritical Antisolvent Process
中国化学工程学报(英文版)2012年20卷第4期 页码:803-813
Affiliations:
1. Star Lake Bioscience Co., Inc.,Zhaoqing,China,526040
2. School of Chemistry and Chemical Engineering, South China University of Technology,Guangzhou,China,510640
Author bio:
Funds:
Supported by the National Natural Science Foundation of China (21076084);the Fundamental Research Funds for the Central Universities (2011ZZ0006);the Open Project Program of Provincial Key Laboratory of Green Processing Technology and Product Safety of Natural Products
李文锋, 刘贵金, 李黎仙, 等. Effect of Process Parameters on Co-precipitation of Paclitaxel and Poly(L-lactic Acid) by Supercritical Antisolvent Process[J]. 中国化学工程学报(英文版), 2012,20(4):803-813.
LI Wenfeng, LIU Guijin, LI Lixian, WU Juan, LÜ Yangxiao, JIANG Yanbin. Effect of Process Parameters on Co-precipitation of Paclitaxel and Poly(L-lactic Acid) by Supercritical Antisolvent Process[J]. Chin.J.Chem.Eng., 2012, 20(4): 803-813.
李文锋, 刘贵金, 李黎仙, 等. Effect of Process Parameters on Co-precipitation of Paclitaxel and Poly(L-lactic Acid) by Supercritical Antisolvent Process[J]. 中国化学工程学报(英文版), 2012,20(4):803-813.DOI: 10.1016/S1004-9541(11)60251-6.
LI Wenfeng, LIU Guijin, LI Lixian, WU Juan, LÜ Yangxiao, JIANG Yanbin. Effect of Process Parameters on Co-precipitation of Paclitaxel and Poly(L-lactic Acid) by Supercritical Antisolvent Process[J]. Chin.J.Chem.Eng., 2012, 20(4): 803-813.DOI: 10.1016/S1004-9541(11)60251-6.
Effect of Process Parameters on Co-precipitation of Paclitaxel and Poly(L-lactic Acid) by Supercritical Antisolvent Process
摘要
Abstract
Paclitaxel(PTX) is an effective anticancer drug with poor solubility in water.Recently
much effort has been devoted into alternative formulations of PTX for improving its aqueous solubility.In this study
PTX and poly(L-lactic acid)(PLLA) were co-precipitated by a supercritical antisolvent(SAS) process using dichloromethane(DCM) and the mixtures of DCM/ethanol(EtOH) or DCM/dimethyl sulfoxide(DMSO) as the solvent
with super-critical carbon dioxide as the antisolvent.The effects of solvent
solvent ratio
temperature
pressure
polymer concentration and solution flow rate on particle morphology
mass median diameter(
D
p
50
) and PTX loading were investigated using single-factor method.The particle samples were characterized using X-ray diffraction(XRD)
scanning electron microscopy(SEM)
laser diffraction particle size analyzer and high pressure liquid chromatography(HPLC).XRD results indicate that the micronized PTX is dispersed into the PLLA matrix in an amorphous form.SEM indicates that the solvent and the solvent ratio have great effect on the particle morphologies
and particle morphology is good at the volume ratio of DCM/EtOH of 50/50.For the mixed DCM/EtOH solvent
D
p
50
increases with the increase of the temperature
pressure
PLLA concentration and solution flow rate
and PTX loading increases with pressure.Suitable operating conditions for the experimental system are as follows:DCM/EtOH 50/50(by volume)
35℃
10-12 MPa
PLLA concentrat
ion of 5 g·L
-1
and solution flow rate of 0.5 ml·min
-1
.
关键词
Keywords
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