Mechano-regulated Surface for Manipulating Liquid Droplets

Overview

Journal Nat Commun

Specialty Biology

Date 2017 Apr 5

PMID 28374739

Citations 13

Authors

Xin Tang

Pingan Zhu

Ye Tian

Xuechang Zhou

Tiantian Kong

Liqiu Wang

Affiliations

Soon will be listed here.

Abstract

The effective transfer of tiny liquid droplets is vital for a number of processes such as chemical and biological microassays. Inspired by the tarsi of meniscus-climbing insects, which can climb menisci by deforming the water/air interface, we developed a mechano-regulated surface consisting of a background mesh and a movable microfibre array with contrastive wettability. The adhesion of this mechano-regulated surface to liquid droplets can be reversibly switched through mechanical reconfiguration of the microfibre array. The adhesive force can be tuned by varying the number and surface chemistry of the microfibres. The in situ adhesion of the mechano-regulated surface can be used to manoeuvre micro-/nanolitre liquid droplets in a nearly loss-free manner. The mechano-regulated surface can be scaled up to handle multiple droplets in parallel. Our approach offers a miniaturized mechano-device with switchable adhesion for handling micro-/nanolitre droplets, either in air or in a fluid that is immiscible with the droplets.

Citing Articles

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