Different pH-Values of Release Medium Influence the Drug Release from PTX-PCL Microspheres

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In this paper we study in vitro release of paclitaxel-loade polycaprolactone sustained-release microspheres. Different pH values release medium is used to simulate pH conditions in different parts of body, and determination the paclitaxel in Microspheres by High Performance Liquid Chromatography according Chinese Pharmacopoeia 2010. The experimental results indicate that the microspheres release rates of same drug loading content in buffer solution of pH 7.35 is the fastest, and in the pH 1.2 is the slowest. The drug release behavior according to the first-order model and it is not affected by drug loading rate of microspheres. The prepared paclitaxel-loade polycaprolactone sustained-release microspheres has good sustained release effect in different release media, and the results can provide references for further study of in vivo release.

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Advanced Materials Research (Volumes 482-484)

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2605-2608

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February 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] N. Vidensek, P. Lin and A. Cumpbel. Taxol content in bark, wood root, leaf,twiy, and seedling from severaling from several taxus species. J Nat Prod, 1990, 53(6):1609~1610.

DOI: 10.1021/np50072a039

Google Scholar

[2] E. K. Rowinsky, N. Onetto, R. M. Canetta. Taxol:the first of the taxanes, an important new class of antitumor agents. Semin Oncol. 1992, 19(6):646~662.

Google Scholar

[3] Z. T. Shen, M. Yang, L. X. Yu. Therapeutic Effects of Thermosensitive micell of PTX on the Human Ovarian Carcinoma Transplanted Subcutaneously in Nude Mice[J], medical graduates college journal,2007,20(10): 1026-1029.

Google Scholar

[4] Kun N, Taebum L, Kun H et al. Self-assembled nanoparticles of hydrophobically modified polysaccharide bearing vitamin H as a targeted anti-cancer drub delivery system[J]. Eur J Pharm Sci, 2003(18): 165-173.

DOI: 10.1016/s0928-0987(02)00257-9

Google Scholar

[5] K. Aboustakis, A. Beletsi, etal.PLGA-mPEG nanoparticles of cisplatin: invitro nanoparticle degradation, in vitro drug release and in vivo drug residence in blood properties (J). J Cont Res, 2002, 79(1-3):123-135.

DOI: 10.1016/s0168-3659(01)00530-2

Google Scholar