胶原/纤维蛋白胶/载BSA微球复合支架的制备及体外性能研究

被引:5
作者
陈红丽 [1 ]
吕洁丽 [2 ]
南文滨 [1 ]
刘瑞 [1 ]
张慧 [2 ]
郭伟云 [1 ]
刘玲蓉 [3 ]
张其清 [3 ]
井长勤 [1 ]
机构
[1] 新乡医学院生命科学技术学院
[2] 新乡医学院药学院
[3] 中国医学科学院北京协和医学院生物医学工程研究所
关键词
胶原; 纤维蛋白; PLGA微球; 组织工程支架;
D O I
暂无
中图分类号
R318.08 [生物材料学];
学科分类号
100103 [病原生物学];
摘要
为改善组织工程支架材料内部营养供应不足及分布不均的问题,制备胶原/纤维蛋白胶/载BSA微球复合支架(SCFM)并研究其理化性质及其BSA释放行为。本研究中采用戊二醛交联并冷冻干燥制备多孔胶原海绵支架,纤维蛋白与载BSA的PLGA微球混合后加入凝血酶,注入胶原膜中制备复合支架,研究支架形态学、孔隙率、机械强度等理化性质;通过BCA试剂盒法测定支架内部不同部位BSA含量及释放行为,圆二色谱法检测BSA的二级结构。扫描电镜结果显示制备的胶原支架孔径分布均匀,孔径平均(130±45)μm;相对于胶原/纤维蛋白胶/BSA支架(SCFB),在体外释放48 h时累积释放率为75.20%±2.74%,随后BSA即不再显著增加;而支架SCFM中的BSA释放时间延长,持续释放144 h,测定其累积释放量为72.36%±3.48%;测定支架SCFM代表性的3个部位的BSA含量均匀,在释放96 h内均高于支架外BSA含量,且圆二色谱结果表明BSA二级结构未见异常。支架SCFM可长时间维持支架内部BSA含量,且持续均匀释放,是理想的组织工程支架材料。
引用
收藏
页码:79 / 85
页数:7
相关论文
共 18 条
[1]
Microstructural and mechanical differences between digested collagen–fibrin co-gels and pure collagen and fibrin gels.[J].Victor K. Lai;Christina R. Frey;Allan M. Kerandi;Spencer P. Lake;Robert T. Tranquillo;Victor H. Barocas.Acta Biomaterialia.2012, 11
[2]
Cord blood-hematopoietic stem cell expansion in 3D fibrin scaffolds with stromal support [J].
Ferreira, Monica S. Ventura ;
Jahnen-Dechent, Willi ;
Labude, Norina ;
Bovi, Manfred ;
Hieronymus, Thomas ;
Zenke, Martin ;
Schneider, Rebekka K. ;
Neurs, Sabine .
BIOMATERIALS, 2012, 33 (29) :6987-6997
[3]
Thermodynamic and conformational investigation of the influence of CdTe QDs size on the toxic interaction with BSA [J].
Wang, Qisui ;
Liu, Pengfei ;
Zhou, Xiaolan ;
Zhang, Xiaolei ;
Fang, Tingting ;
Liu, Peng ;
Min, Xinmin ;
Li, Xi .
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2012, 230 (01) :23-30
[4]
Engineering fibrin-binding TGF-β1 for sustained signaling and contractile function of MSC based vascular constructs [J].
Liang, Mao-Shih ;
Andreadis, Stelios T. .
BIOMATERIALS, 2011, 32 (33) :8684-8693
[5]
Ruthenium-catalyzed photo cross-linking of fibrin-based engineered tissue.[J].Jason W. Bjork;Sandra L. Johnson;Robert T. Tranquillo.Biomaterials.2010, 10
[6]
Controlled release of BSA by microsphere-incorporated PLGA scaffolds under cyclic loading.[J].Yanfang Yang;Gongwen Tang;Hong Zhang;Yunhui Zhao;Xiaoyan Yuan;Yubo Fan;Min Wang.Materials Science & Engineering C.2010, 2
[7]
Bio-printing of collagen and VEGF-releasing fibrin gel scaffolds for neural stem cell culture [J].
Lee, Yeong-Bae ;
Polio, Samuel ;
Lee, Wonhye ;
Dai, Guohao ;
Menon, Lata ;
Carroll, Rona S. ;
Yoo, Seung-Schik .
EXPERIMENTAL NEUROLOGY, 2010, 223 (02) :645-652
[8]
Fibrin glue as a drug delivery system [J].
Spicer, Patrick P. ;
Mikos, Antonios G. .
JOURNAL OF CONTROLLED RELEASE, 2010, 148 (01) :49-55
[9]
Bone morphogenic protein-2 (BMP-2) loaded nanoparticles mixed with human mesenchymal stem cell in fibrin hydrogel for bone tissue engineering [J].
Park, Keun-Hong ;
Kim, Hyemin ;
Moon, Sumi ;
Na, Kun .
JOURNAL OF BIOSCIENCE AND BIOENGINEERING, 2009, 108 (06) :530-537
[10]
Multifunctional protein-encapsulated polycaprolactone scaffolds: Fabrication and in vitro assessment for tissue engineering [J].
Ozkan, Seher ;
Kalyon, Dilhan M. ;
Yu, Xiaojun ;
McKelvey, Craig A. ;
Lowinger, Michael .
BIOMATERIALS, 2009, 30 (26) :4336-4347