NOVEL COMPOSITES OF POLY(L-LACTIDE) AND SURFACE MODIFIED BIOACTIVE SiO2-CaO-P2O5 GEL NANOPARTICLES: MECHANICAL AND BIOLOGICAL PROPERTIES
文献类型：期刊论文
| 作者 | Liu AX ; Wei JC ; Chen XS ; Jing XB ; Cui Y ; Liu Y |
| 刊名 | chinese journal of polymer science
 |
| 出版日期 | 2009 |
| 卷号 | 27期号:3页码:415-426 |
| 关键词 | GLASS COMPOSITES SILICA SYSTEM HYDROXYAPATITE BIOCERAMICS DEGRADATION SCAFFOLDS CELLS FOAMS |
| ISSN号 | 0256-7679 |
| 通讯作者 | chen xs |
| 中文摘要 | bioactive sio2-cao-p2o5 gel (bag) nanoparticles with 40 nm in diameter were synthesized by the sol-gel route and further modified via the ring-opening polymerization of lactide on the surface of particles. surface modified bag (mbag) was introduced in poly(l-lactide) (plla) matrix as bioactive filler. the dispersibility of mbag in plla matrix was much higher than that of rough bag particles. tensile strength of the mbag/plla composite could be increased to 61.2 mpa at 2 wt% filler content from 53.4 mpa for pure plla. the variation of moduli of the bag/plla and mbag/plla composites always showed an enhancement tendency with the increasing content of filler loading. the sem photographs of the fracture surfaces showed that mbag could be homogeneously dispersed in the plla matrix, and the corrugated deformation could absorb the rupture energy effectively during the breaking of materials. in vitro bioactivity tests showed that both bag and mbag particles could endow the composites with ability of the calcium sediment in sbf, but the surface modification of bag particles could weaken this capability to some extent. biocompatibility tests showed that both bag and mbag particles could facilitate the attachment and proliferation of the marrow cells on the surface of the composite. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000265545400016 |
| 公开日期 | 2010-06-18 |
| 源URL | [http://202.98.16.49/handle/322003/12939]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liu AX,Wei JC,Chen XS,et al. NOVEL COMPOSITES OF POLY(L-LACTIDE) AND SURFACE MODIFIED BIOACTIVE SiO2-CaO-P2O5 GEL NANOPARTICLES: MECHANICAL AND BIOLOGICAL PROPERTIES[J]. chinese journal of polymer science,2009,27(3):415-426. |
| APA | Liu AX,Wei JC,Chen XS,Jing XB,Cui Y,&Liu Y.(2009).NOVEL COMPOSITES OF POLY(L-LACTIDE) AND SURFACE MODIFIED BIOACTIVE SiO2-CaO-P2O5 GEL NANOPARTICLES: MECHANICAL AND BIOLOGICAL PROPERTIES.chinese journal of polymer science,27(3),415-426. |
| MLA | Liu AX,et al."NOVEL COMPOSITES OF POLY(L-LACTIDE) AND SURFACE MODIFIED BIOACTIVE SiO2-CaO-P2O5 GEL NANOPARTICLES: MECHANICAL AND BIOLOGICAL PROPERTIES".chinese journal of polymer science 27.3(2009):415-426. |
入库方式： OAI收割
来源：长春应用化学研究所
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