共 4 条
Fabrication of thermo-responsive PNIPAAm-g-ETFE for cell culture dishes by pre-irradiation grafting
被引:6
|作者:
Yamahara, Yumi
[1
]
Nagasawa, Naotsugu
[2
]
Taguchi, Mitsumasa
[2
]
Oshima, Akihiro
[3
]
Washio, Masakazu
[1
]
机构:
[1] Waseda Univ, Waseda Res Inst Sci & Engn, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan
[2] Natl Inst Quantum & Radiol Sci & Technol, QuBS, 1223 Watanuki, Takasaki, Gunma 3701292, Japan
[3] Osaka Univ, Grad Sch Engn, 8-1 Mihogaoka, Ibaraki, Osaka 5670047, Japan
关键词:
ETFE;
Cell culture dishes;
Pre-irradiation grafting;
Thermo-responsive;
PNIPPAm-g-ETFE;
IRRADIATED POLYTETRAFLUOROETHYLENE;
DRUG PERMEATION;
PEROXY-RADICALS;
TEMPERATURE;
COPOLYMER;
POLYMERS;
ETHYLENE;
FILMS;
POLY(N-ISOPROPYLACRYLAMIDE);
ADHESION;
D O I:
10.1016/j.radphyschem.2017.02.045
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Thermo-responsive templates for the cell cultivation based on Poly(tetrafluoroethylene-co-ethylene) (ETFE) were fabricated by pre-irradiation grafting of N-isoproplyacrylamide (NIPAAm) monomer by electron beam (EB) irradiation under nitrogen gas atmosphere at room temperature, and their characteristic properties were studied. The detachment of cultured HeLa cells from fabricated thermo-responsive templates were attempted. Furthermore, the reaction mechanism is proposed using ESR spectroscopy and FT-IR spectroscopy. It is confirmed that the cultured HeLa cells were detached from fabricated thermo-responsive templates at 20 degrees C. Water contact angle analysis indicated that obtained templates had thermo-response around 30 degrees C. It is suggested that the grafted polymer chains would mainly react with peroxy radicals (-CF2-CF(OO center dot)-) on tetrafluoroethylene unit in ETFE.
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页码:88 / 93
页数:6
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