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【答案】应助回帖
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RXMCDM: 金币+2, 多谢应助！ 2014-11-24 01:41:01
转身丶忘不掉: 金币+16, 翻译EPI+1, ★★★★★最佳答案, 很好哦! 2014-11-24 12:17:31
Hi, my friends. Enjoy.
3.5. Pore size distribution of PLGA/PHBV scaffold
Pore size distribution of the scaffolds acquired by MIP test was shown in Fig. 5. The results seemed a little out of expectation. After adding the PHBV microspheres, the pore size of the scaffold should be influenced in some extent, but the PLGA/30% PHBV scaffold showed bigger pore size than that of pure PLGA. However, the PLGA/50% PHBV exhibited reasonable pore size distribution compared with PLGA/30% PHBV scaffold. Besides, most of pore sizes of the scaffolds were located between 50 μm and 300 μm, which were suitable for cell and tissue penetration.
图5 显示了由MIP测试获取的支架的孔径分布。 结果似乎有点出乎意料。加入PHBV微球后，支架的孔径应在一定程度上受到影响，但支架PLGA/ 30％PHBV的孔径比纯PLGA的更大。然而与支架PLGA/ 30％PHBV相比，PLGA/ 50％PHBV展出合理的孔径分布。此外，大多数支架的孔径分布在50至300微米之间，适合于细胞和组织之间的穿透。
3.6. Compressive strength of PLGA/PHBV scaffold
The compressive strength of the scaffolds was tested on a universal material testing machine and the results were shown in Fig. 6. The value of PLGA/50% PHBV scaffolds was the highest which came to (1.48232 ± 0.16643) Mpa. It was obviously higher than that of pure PLGA and PLGA/30% PHBV scaffolds. However, the strength of PLGA/ scaffold only possessed 1.12844 ± 0.13511 Mpa, which was of no significant differentiation to that of pure PLGA scaffold (1.00937± 0.12762 Mpa).
在万能材料实验机上测试了支架的耐压强度，其结果示于图6中. 支架PLGA/50％PHBV的强度最高，为1.48232±0.16643兆帕。明显高于纯PLGA和PLGA/30％PHBV支架的耐压强度。然而，PLGA/30% PHBV的耐压强度为1.12844±0.13511兆帕，这与纯PLGA支架的耐压强度1.00937±0.12762兆帕没有显著区别。 |
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