دورية أكاديمية
New Method to Prepare Mitomycin C Loaded PLA-Nanoparticles with High Drug Entrapment Efficiency
| العنوان: | New Method to Prepare Mitomycin C Loaded PLA-Nanoparticles with High Drug Entrapment Efficiency |
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| المؤلفون: | Hou Zhenqing, Wei Heng, Wang Qian, Sun Qian, Zhou Chunxiao, Zhan Chuanming, Tang Xiaolong, Zhang Qiqing |
| المصدر: | Nanoscale Research Letters, Vol 4, Iss 7, Pp 732-737 (2009) |
| بيانات النشر: | SpringerOpen, 2009. |
| سنة النشر: | 2009 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials |
| مصطلحات موضوعية: | Mitomycin C, PLA, Nanoparticles, Drug release, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| الوصف: | Abstract The classical utilized double emulsion solvent diffusion technique for encapsulating water soluble Mitomycin C (MMC) in PLA nanoparticles suffers from low encapsulation efficiency because of the drug rapid partitioning to the external aqueous phase. In this paper, MMC loaded PLA nanoparticles were prepared by a new single emulsion solvent evaporation method, in which soybean phosphatidylcholine (SPC) was employed to improve the liposolubility of MMC by formation of MMC–SPC complex. Four main influential factors based on the results of a single-factor test, namely, PLA molecular weight, ratio of PLA to SPC (wt/wt) and MMC to SPC (wt/wt), volume ratio of oil phase to water phase, were evaluated using an orthogonal design with respect to drug entrapment efficiency. The drug release study was performed in pH 7.2 PBS at 37 °C with drug analysis using UV/vis spectrometer at 365 nm. MMC–PLA particles prepared by classical method were used as comparison. The formulated MMC–SPC–PLA nanoparticles under optimized condition are found to be relatively uniform in size (594 nm) with up to 94.8% of drug entrapment efficiency compared to 6.44 μm of PLA–MMC microparticles with 34.5% of drug entrapment efficiency. The release of MMC shows biphasic with an initial burst effect, followed by a cumulated drug release over 30 days is 50.17% for PLA–MMC–SPC nanoparticles, and 74.1% for PLA–MMC particles. The IR analysis of MMC–SPC complex shows that their high liposolubility may be attributed to some weak physical interaction between MMC and SPC during the formation of the complex. It is concluded that the new method is advantageous in terms of smaller size, lower size distribution, higher encapsulation yield, and longer sustained drug release in comparison to classical method. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1931-7573 1556-276X |
| العلاقة: | https://doaj.org/toc/1931-7573Test; https://doaj.org/toc/1556-276XTest |
| DOI: | 10.1007/s11671-009-9312-z |
| الوصول الحر: | https://doaj.org/article/f5454dd3fd234111854c12d07900452bTest |
| رقم الانضمام: | edsdoj.f5454dd3fd234111854c12d07900452b |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19317573 1556276X |
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| DOI: | 10.1007/s11671-009-9312-z |