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| 1 | Poly(N-isopropylacrylamide)-based thermo-responsive surfaces with controllable cell adhesion显示文摘Poly(N-isopropylacrylamide)(PNIPAAm)-based thermo-responsive surfaces can switch their wettability(from wettable to non-wettable) and adhesion(from sticky to non-sticky) according to external temperature changes. These smart surfaces with switchable interfacial properties are playing increasingly important roles in a diverse range of biomedical applications; these controlling cell-adhesion behavior has shown great potential for tissue engineering and disease diagnostics. Herein we reviewed the recent progress of research on PNIPAAm-based thermo-responsive surfaces that can dynamically control cell adhesion behavior. The underlying response mechanisms and influencing factors for PNIPAAm-based surfaces to control cell adhesion are described first. Then, PNIPAAm-modified two-dimensional flat surfaces for cell-sheet engineering and PNIPAAm-modified three-dimensional nanostructured surfaces for diagnostics are summarized. We also provide a future perspective for the development of stimuli-responsive surfaces. | LIU HongLiang WANG ShuTao | 2014 | Science China Chemistry2014，57，4： | 4 |
| 2 | Development of Science China Chemistry during 2008-2012:From the perspective of Special Issues/Topics显示文摘1 Introduction Science China Press Co.,Ltd.(SCP) is a science and technology(ST) journal publishing company of the Chinese Academy of Sciences(CAS).SCP publishes 16 kinds of academic journals,Science China Series and Chinese Science Bulletin,of which 8 journals are in English and 8 | SONG GuanQun ZHU XiaoWen | 2012 | Science China Chemistry2012，55，12： | 2 |
| 3 | PVDF-g-PNIPAAm温敏膜用于Hela细胞黏附生长与脱附显示文摘传统的酶解法用于细胞收获容易导致细胞膜蛋白损伤,致使细胞功能缺失,而具有温敏特性的材料表面用于细胞培养时,可采用降温脱附法收获细胞,从而有效维护细胞的功能。研究将Hela细胞分别接种于常规空白培养板、PVDF膜以及四种不同PVDF-g-PNIPAAm温敏膜上,考察Hela细胞的黏附生长与降温脱附行为。培养过程中,观察细胞生长形态,检测细胞生长活率;收获时,观察细胞在从不同基底表面降温脱附行为,并对降温脱附法和胰酶消化法收获的细胞分别进行死活染色,计算细胞活率。结果表明,Hela细胞在不同基底表面均能正常黏附、铺展与生长;在四种不同PVDF-g-PNIPAAm温敏膜(M21,M32,M11,M23)上,M32与M11较更适宜细胞黏附与生长;当温度降低时Hela细胞不能从常规空白培养板及PVDF膜上自动脱附,但均能从四种温敏膜上自动脱附,脱附速率为M11>M32>M21>M23;降温脱附法比胰酶消化法收获的细胞活率更高,分别为(95±3.47)%与(81±2.26)%。PVDF-g-PNIPAAm温敏膜用于Hela细胞培养与收获的研究,为下一步采用温敏性PVDF-g-PNIPAAm中空纤维膜生物反应器大规模扩增并无损伤收获细胞奠定了基础。 | 李香琴 刘天庆 刘小红 | 2016 | 高校化学工程学报2016，30，1： | 1 |
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