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Bioinspired Unidirectional Liquid Spreading Channel–Principle, Design, and Manufacture
Author(s) -
Zhang Xiangyu,
Wang Dongyue,
Zhang Yixuan,
Zhang Deyuan,
Li Zeming,
Liu Hao
Publication year - 2020
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201901791
Subject(s) - curvature , materials science , enhanced data rates for gsm evolution , channel (broadcasting) , fabrication , nanotechnology , mechanics , geometry , computer science , physics , telecommunications , mathematics , medicine , alternative medicine , pathology
Liquid unidirectional spreading without energy input has attracted worldwide attentions owing to its potential applications in various fields. The liquid transfer between the adjacent microcavities on the peristome of Nepenthes alata provides great inspiration in that the concave curvature edge structure has the possibility to induce liquid directional spreading. Herein, the effect of concave curvature edge on liquid spreading is found to be different from that of the solid edge described by the Gibbs inequality condition. In this condition, there exist two liquid transfer states, namely conduction and resistance. Taking the advantages of the concave curvature edge, a new unidirectional liquid spreading channel is designed and fabricated by the traditional machining method, and its liquid directional spreading function is validated. This article provides a theoretical and technical support for the design and fabrication of liquid unidirectional spreading channel without an external energy input.