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mPEG表面修饰的PLGA嵌段共聚物的血液相容性评价 被引量:9

Evaluation of Blood Compatibility of Surface Modification Treated Poly (D, L-lactic and glycolic acid) with mPEG Block Copolymer
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摘要 本实验室设计合成了三种不同LA/GA比例的mPEG修饰PLGA(PELGA,含15%mPEG),为了评价它们的血液相容性,我们以硅化玻璃试管为阴性对照,未硅化的试管为阳性对照,参照国际标准(ISO10993)和《中华人民共和国国家标准GB/T 16886医疗器械生物学评价》方法进行了体外评价实验。试验包括溶血率实验,血小板黏附实验,动态凝血时间实验,凝血时间实验,血浆复钙时间实验和凝血酶原时间实验等综合评价指标。结果表明,合成材料具有优良的血液相容性,材料制成的纳米粒有望应用于静脉注射。 To identify the advantages of modification treated ploy (D, L -lactic and glycolic acid) with poly (ethylene glycol) (PLGA/mPEG,PELGA) block copolymer, blood compatibility was evaluated in vitro. Three different proportional block copolymers (LA/GA80: 20, 70: 30, 50: 50) with 15% mPEG were synthesized. According to the international standard organization (ISO10993) and National Standards of P, R. China GB/T 16886, siliconized glass tube was used as a negative control sample, while non-siliconized glass tube as a positive one. Blood compatibility of PELGA was evaluated by hemolytic ratio analysis, platelet adhesion investigation, dynamic clotting time, plasma recalclfication time (PR.T) measurements, plasma prothrombin time (PT) and clotting time (CT) test, The results revealed that blood compatibility of the synthesized materials was good. Nanoparticles made by this kind of materials might be promising for intravenous use.
出处 《生物医学工程学杂志》 EI CAS CSCD 北大核心 2007年第2期336-339,共4页 Journal of Biomedical Engineering
基金 国家"十五"重大高技术发展研究计划(国家"863"计划)资助项目(2004AA273142)
关键词 聚乙交酯丙交酯 聚乙烯醇 嵌段共聚物 血液相容性 静脉注射 Ploy (D,L-lactic and glycolic acid)(PLGA) Poly (ethylene glycol)(PEG) Block copolymer Blood compatibility Intravenous injection
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  • 1Barenberg SA,Sehultz JS,Anderson JM.et al.Hemocompatibility:macromolecular motions and order of the polymer interface.Trans Am Soc Artif Intern Organ,1979;25:159
  • 2Lin SC.Preprints of the second international kyoto symposium of biomedical materials.Kyoto,Japan 1985:9
  • 3Huang N,Yang P,Cheng X,et al.Blood compatibility of amorphous titanium oxide films synthesized by ion beam enhanced deposition.Biomaterils,1998;19(7-9):771
  • 4中华人民共和国国家标准GB/T 16886.医疗器械生物学评价4-与血液相互作用试验选择
  • 5Ji Hoon Jeong,Dong Woo Lim,Dong Keun Han,et al.Synthesis,characterization and protein adsorption behaviors of PLGA/PEG di-block co-polymer blend films.Colloids and Surfaces B:Biointerfaces,2000;18(3-4):371
  • 6易树,尹光福,郑昌琼.生物材料表面界面特性与其血液相容性的关系[J].中国口腔种植学杂志,2003,8(2):83-88. 被引量:16

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