화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.19, No.4, 385-395, April, 2011
DOI10.1007/s13233-011-0412-0  Export Citation
Preparation and Characterization of Poly(hydroxyethyl methacrylate-co-poly(ethyleneglycol-methacrylate)/Hydroxypropyl-chitosan) Hydrogel Films: Adhesion of Rat Mesenchymal Stem Cells
Gulay Bayramoglu†, K. Can Akcalı1, Sinan Gultekin1, Erman Bengu2, and M. Yakup Arica
  • Biochemical Processing and Biomaterial Research Laboratory, Faculty of Arts and Sciences, Gazi University, 06500, Teknikokullar-Ankara, Turkey
  • 1Department of Molecular Biology and Genetics, Faculty Science, Bilkent University, 06800, Bilkent-Ankara, Turkey
  • 2Department of Chemistry, Faculty of Science, Bilkent University, 06800, Bilkent-Ankara, Turkey
E-mail:
This study examined the effects of the surface properties of the materials, such as the hydroxyl, methyl and amino groups, on rat bone marrow derived Mesenchymal Stem Cell (MSC) seeding. A series of hydrogels were prepared in film form using 2-hydroxyethyl methacrylate (pHEMA), poly(ethyleneglycol) methacrylate (PEG-MA), and/or hydroxypropyl-chitosan (HPC). The physicochemical properties of these hydrogel films, such as water content, functional groups, contact angle, surface energy and thermal properties were affected by the composition of the materials. The ability of the MSCs to form colonies, as well as their viability on these materials were also analyzed. The water content of the hydrogel films increased with increasing PEG-MA and HPC ratio in the hydrogel. Contact angle measurements of the surface of the hydrogel films demonstrated that all the materials gave rise to a significantly hydrophilic surface compared to pure pHEMA. The blood protein interactions and platelet adhesion were reduced significantly on the surface of the materials upon the incorporation of PEG-MA compared to the control pure pHEMA and vice versa for HPC. The ability of the MSCs to adhere and form colonies on these materials was also analyzed. The results showed that these materials are suitable candidates to isolate and expand MSCs.
Keywords:hydrogels;contact angle;protein adsorption;mesenchymal stem cells;tissue engineering.
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