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题名: Deciphering buried air phases on natural and bioinspired superhydrophobic surfaces using synchrotron radiation-based X-ray phase-contrast imaging
作者: Hu, ZH; Sun, M; Lv, M; Wang, LH; Shi, JY; Xiao, TQ; Cao, Y; Wang, J; Fan, CH
刊名: NPG ASIA MATERIALS
出版日期: 2016
卷号: 8, 页码:-
DOI: 10.1038/am.2016.122
通讯作者: Wang, J (reprint author), South China Univ Technol, State Key Lab Luminescent Mat & Devices, Inst Polymer Optoelect Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China. ; Fan, CH (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, CAS Key Lab Interfacial Phys & Technol,Div Phys B, Shanghai 201800, Peoples R China. ; Fan, CH (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, CAS Key Lab Interfacial Phys & Technol,Bioimaging, Shanghai 201800, Peoples R China.
文章类型: 期刊论文
英文摘要: Superhydrophobicity is an important phenomenon in nature that inspires the design of numerous biomimetic functional materials. A superhydrophobic surface is expected to have a three-phase solid-liquid-vapor interface. To directly image the buried air phase in wetted superhydrophobic surfaces, we employed synchrotron radiation-based X-ray phase-contrast imaging to non-invasively probe the surfaces of natural lotus leaves and artificial carbon nanotube films in three dimensions. Reconstructed images of the three-phase distribution surrounding the superhydrophobic surfaces were presented with high resolution and contrast. Further extraction of the phases enabled direct analysis of the relationship between the surface morphology and its wetting property. We found that the protruding micro/nano-structures trapped a layer of air up to 14 mu m thick, which played an important role in the observed superhydrophobicity. Direct evidence of the presence of a buffer layer air cushion deepens our understanding of hydrophobicity and opens new opportunities for designing novel bioinspired materials.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000383415300005
ISSN号: 1884-4049
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26467
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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