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自组装肽纳米纤维水凝胶支架对TGF的缓释作用及其生物学特性的实验研究

发布时间:2021-01-22 20:25
  第一部分自组装肽纳米纤维水凝胶支架材料的制备及理化性质分析目的设计并制备由Arg、Ala、Asp等氨基酸构成的新型自组装肽(self-assemblingpeptide,SAP):L-RADA16、D-RADA16 和 L-RADA16-RGD。采用圆二色谱仪、扫描电镜、透射电镜、流变仪对L-RADA16、D-RADA16和L-RADA16-RGD进行表征,了解其微观结构,评估其是否可形成纳米纤维支架结构;研究三者的机械性质,比较其物理学稳定性。以期研发兼具良好稳定性与生物学活性,同时可批量化生产的骨修复材料。方法三种SAP均采用商业合成,经高效液相色谱仪(high performance liquid chromatography,HPLC)分析纯度;采用圆二色谱(circular dichroism,CD)了解三种 SAP L-RADA16、D-RADA16 及 L-RADA16-RGD 的二级结构;采用扫描电镜(scanning electron microscopy,SEM)和透射电镜(transmission electron microscopy,TEM)观察三种 SAP ... 

【文章来源】:重庆医科大学重庆市

【文章页数】:92 页

【学位级别】:博士

【部分图文】:

自组装肽纳米纤维水凝胶支架对TGF的缓释作用及其生物学特性的实验研究


图1.1.1?2%?w/v?RADA16自组装肽溶解在?图1.1.2?0.5%?w/v?RADA16自组装肽溶解在??去离子水中?PBS中??

自组装,光镜,图像,玻片


6附图??’ip]??jIU?vli??图1.1.1?2%?w/v?RADA16自组装肽溶解在?图1.1.2?0.5%?w/v?RADA16自组装肽溶解在??去离子水中?PBS中??Figure?1.1.1?2%?w/v?RADA16?Figure?1.1.2?0.5%?w/v?RADA-16??self-assembling?peptides?were?dissolved?in?self-assembling?peptides?were?dissolved?in?the??the?deionized?water?PBS??100?|jm??图1.2自组装肽膜在光镜下的图像。PBS(pH7.4)转移到玻片上形成无色的膜结构。RADA16??肽膜经刚果红染色后肉眼可见。??Figure?1.2?Optical?microscopy?images?of?peptide?membranes.?The?colorless?membranous??structure?was?formed?in?PBS?(pH?7.4)?and?transferred?to?a?glass?slide.?RADA16?peptide??membrane?can?be?seen?by?the?naked?eyes?when?stained?with?Congo?red.??31??

圆二色光谱,自组装,玻片,膜结构


6附图??’ip]??jIU?vli??图1.1.1?2%?w/v?RADA16自组装肽溶解在?图1.1.2?0.5%?w/v?RADA16自组装肽溶解在??去离子水中?PBS中??Figure?1.1.1?2%?w/v?RADA16?Figure?1.1.2?0.5%?w/v?RADA-16??self-assembling?peptides?were?dissolved?in?self-assembling?peptides?were?dissolved?in?the??the?deionized?water?PBS??100?|jm??图1.2自组装肽膜在光镜下的图像。PBS(pH7.4)转移到玻片上形成无色的膜结构。RADA16??肽膜经刚果红染色后肉眼可见。??Figure?1.2?Optical?microscopy?images?of?peptide?membranes.?The?colorless?membranous??structure?was?formed?in?PBS?(pH?7.4)?and?transferred?to?a?glass?slide.?RADA16?peptide??membrane?can?be?seen?by?the?naked?eyes?when?stained?with?Congo?red.??31??


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