화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU))
권호 19권 2호
발표분야 생체재료_포스터
제목 Preparation of low-molecular-weight chitosan derivative to promote cell adhesion on titanium surface
초록 For improving cell adhesion on titanium surface, phosphonated low-molecular-weight chitosan(P-LMC) was prepared by introducing a phosphonate group of 4-phosphonobutyric acid to low-molecular-weight chitosan. The phosphonate group of P-LMC was identified by 31P-NMR. X-ray Photoelectron Spectroscopy (XPS) and water contact angle were carried out for characterization of titanium surface treated with P-LMC. The biocompatibility of P-LMC was demonstrated through a cytotoxicity test using the C2C12 cell line because P-LMC should have no cytotoxicity for applying to dental implant materials. Improvement of cell adhesion on titanium surface treated with P-LMC was observed by microscopy, and the number of attached cells was counted using a hemocytometer. These results demonstrate that P-LMC is biocompatible and titanium surface treated with P-LMC has positive effects on cell adhesion. Therefore, P-LMC is a useful material that can be applied for titanium coating to enhance cell adhesion and osseointegration.
저자 손태일, 한가득, 정진홍, 김은혜
소속 중앙대
키워드 Chitosan; Cell adhesion; Titanium surface
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