Biomimicking lubrication superior to fish skin using responsive hydrogels

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 固体润滑国家重点实验室

	Biomimicking lubrication superior to fish skin using responsive hydrogels
	Wu Y(吴杨)1,2 ; Pei XW(裴小维)1 ; Wang XL(王晓龙)1 ; Liang YM(梁永民)1; Liu WM(刘维民)1 ; Zhou F(周峰)1 ; Wang XL(王晓龙); Zhou F(周峰)
刊名	NPG Asia Materials
	2014
卷号	6 页码:e136(1-6)
ISSN号	1884-4049
通讯作者	王晓龙 ; 周峰
英文摘要	The slippery mucus produced by fish skin is important to protect fish against predator attack, allowing fish to swim faster and remain elusive because of the ultra-low coefficient of friction (COF) of fish skin. To mimic this slick skin, responsive hydrogels that respond to external stimuli, including pH and temperature, were prepared. These hydrogels were found to perform better than fish skin: not only was an ultra-low COF achieved but multiple tunable COFs from ultra-low to ultra-high were discovered using sequential regulation of pH and temperature. The tunable COF was achieved through conformational changes in the molecular chains in the responsive hydrogel that were induced by the external stimuli. Swelling of both pH- and thermalresponsive polymer chains of the hydrogel resulted in an ultra-low COF; the pH-responsive component, shrink as a result of dehydration caused by a pH change, led to a moderate COF, whereas the two components simultaneous shrink brought out a very high COF. The three levels of COF under different states can be reversibly switched multiple times by sequential regulation of pH and temperature. This reversible tunability in friction performance is likely to have a significant impact on the design of hydrogel-based actuation devices.
学科主题	材料科学与物理化学
收录类别	SCI
资助信息	the NSFC (21125316;21434009;51335010);973 Project (2013CB632300);the Key Research Program of the Chinese Academy of Sciences (grant no. KJZD-EW-M01)
语种	英语
WOS记录号	WOS:000344735900004
公开日期	2014-12-02
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/6847]
专题	兰州化学物理研究所_固体润滑国家重点实验室
通讯作者	Wang XL(王晓龙); Zhou F(周峰)
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wu Y,Pei XW,Wang XL,et al. Biomimicking lubrication superior to fish skin using responsive hydrogels[J]. NPG Asia Materials,2014,6:e136(1-6).
APA	Wu Y.,Pei XW.,Wang XL.,Liang YM.,Liu WM.,...&周峰.(2014).Biomimicking lubrication superior to fish skin using responsive hydrogels.NPG Asia Materials,6,e136(1-6).
MLA	Wu Y,et al."Biomimicking lubrication superior to fish skin using responsive hydrogels".NPG Asia Materials 6(2014):e136(1-6).