Programmable unidirectional liquid transport on peristome-mimetic surfaces under liquid environments

Shan Zhou, Cunlong Yu, Chuxin Li, Zhichao Dong, Lei Jiang

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13 Citations (Scopus)


Programmable liquid unidirectional transport is important in fluidic applications, such as microfluidics, oil-water separation, and self-lubrication. Despite commendable progress, previous research mainly focused on the unidirectional transport of liquids in an air environment. In multi-fluid systems, the unidirectional transport of one liquid under another immiscible liquid phase, even though urgently needed, still remains a challenge. To solve this cutting-edge problem, we mimicked the peristome of Nepenthes alata and 3D printed peristome-mimetic surfaces to achieve rapid, long-range and unidirectional liquid transport under another immiscible liquid phase. Significantly, we achieved unidirectional transport in a one-dimensional linear trajectory, a two-dimensional curve, and even in a three-dimensional infinite space. Our strategy offers opportunities for liquid transport and micropatterns in liquid environments for various applications.

Original languageEnglish
Pages (from-to)18244-18248
Number of pages5
JournalJournal of Materials Chemistry A
Issue number31
Publication statusPublished - 21 Aug 2019
Externally publishedYes

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