Photo-Cross-Linked PDMSstar-PEG Hydrogels: Synthesis, Characterization, and Potential Application for Tissue Engineering Scaffolds

被引:100
作者
Hou, Yaping [1 ]
Schoener, Cody A. [1 ]
Regan, Katherine R. [1 ]
Munoz-Pinto, Dany [2 ]
Hahn, Mariah S. [2 ]
Grunlan, Melissa A. [1 ]
机构
[1] Texas A&M Univ, Dept Biomed Engn, College Stn, TX 77843 USA
[2] Texas A&M Univ, Dept Chem Engn, College Stn, TX 77843 USA
关键词
EXTRACELLULAR-MATRIX; MECHANICAL-PROPERTIES; PROTEIN ADSORPTION; GELATIN-SILOXANE; CELL ADHESIVE; MESH SIZE; BIOMATERIALS; PHOTOENCAPSULATION; CYTOCOMPATIBILITY; CHONDROCYTES;
D O I
10.1021/bm9012293
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Inorganic-organic hydrogels with tunable chemical and physical properties were prepared from methacrylated star polydimethylsiloxane (PDMSstar-MA) and diacrylated poly(ethylene glycol) (PEG-DA) for use as tissue engineering scaffolds. A total of 18 compositionally unique hydrogels were prepared by photo-cross-linking, varying weight ratios of PEG-DA and PDMSstar-MA of different molecular weights (M-n): PEG-DA (M-n = 3.4k and 6k g/mol) and PDMSstar-MA (M-n = 1.8k, 5k, and 7k g/mol). Introduction of PDMSstar-MA Caused formation of discrete PDMS-enriched microparticles dispersed within the PEG matrix. The swelling ratio, mechanical properties in tension and compression, nonspecific protein adhesion, controlled introduction of bioactivity, and cytotoxicity of hydrogels Were studied. This library of inorganic-organic hydrogels with tunable properties provides U useful platform to study the effect of scaffold properties on cell behavior.
引用
收藏
页码:648 / 656
页数:9
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