Nanohydrogel Brushes for Switchable Underwater Adhesion
文献类型:期刊论文
作者 | Ma SH(麻拴红)1; Michele Scaraggi2,3; Lin P(林鹏)1; Yu B(于波)1![]() ![]() ![]() ![]() |
刊名 | Journal of Physical Chemistry C
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出版日期 | 2017 |
卷号 | 121期号:15页码:8452-8463 |
ISSN号 | 1932-7447 |
通讯作者 | Daniele Dini ; 周峰 |
英文摘要 | In nature, living systems commonly adopt the switchable friction/adhesion mechanism during locomotion. For example, geckos can move on ceilings, relying on the reversible attachment and detachment of their feet on substrate surfaces. Inspired by this scientists have used different materials to mimic natural dynamic friction/adhesion systems. However, synthetic systems usually cannot work in water environments and are also limited to single-contact interfaces, while nature has provided living systems with complex features to perform energy dissipation and adhere on multiple contact interfaces. Here, for the first time, we report the design, synthesis, and testing of a novel double-sided synthetic construct that relies on nanohydrogel brushes to provide simultaneous friction switching on each side of the membrane that separates the nanohydrogel fibers. This highly tunable response is linked to the swelling and shrinkage of the brushes in basic/acid media. Such a system shows three different friction states, which depend on the combination of pH control of the two membrane sides. Importantly, each side of the membrane can independently provide continuous but stable friction switching from high to ultralow friction coefficients in a wet environment under high load conditions. An in-depth theoretical study is performed to explore the mechanisms governing the hydration state responsible for the observed switching. This novel design opens a promising route for the development of new solutions for intelligent devices, which can adapt to multistimulus-responsive complex environments. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | NSFC (20432009;51573199;51335010);D.D. acknowledges support of the Engineering and Physical Sciences Research Council (EPSRC) through the Platform grant EP/G026114/1 and his Established Career Fellowship EP/N025954/1 |
语种 | 英语 |
WOS记录号 | WOS:000400039300024 |
源URL | [http://210.77.64.217/handle/362003/22182] ![]() |
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 | Zhou F(周峰) |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Salento, Dept Engn Innovat, I-73100 Monteroni Lecce, Italy 3.Imperial Coll London, Dept Mech Engn, South Kensington Campus,Exhibit Rd, London SW7 2AZ, England |
推荐引用方式 GB/T 7714 | Ma SH,Michele Scaraggi,Lin P,et al. Nanohydrogel Brushes for Switchable Underwater Adhesion[J]. Journal of Physical Chemistry C,2017,121(15):8452-8463. |
APA | Ma SH.,Michele Scaraggi.,Lin P.,Yu B.,Wang DA.,...&周峰.(2017).Nanohydrogel Brushes for Switchable Underwater Adhesion.Journal of Physical Chemistry C,121(15),8452-8463. |
MLA | Ma SH,et al."Nanohydrogel Brushes for Switchable Underwater Adhesion".Journal of Physical Chemistry C 121.15(2017):8452-8463. |
入库方式: OAI收割
来源:兰州化学物理研究所
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