A route toward digital manipulation of water nanodroplets on surfaces

Meng Cheng; Duoming Wang; Zhaoru Sun; Jing Zhao; Rong Yang; Guole Wang; Wei Yang; Guibai Xie; Jing Zhang; Peng Chen; Congli He; Donghua Liu; Limei Xu; Dongxia Shi; Enge Wang; Guangyu Zhang

doi:10.1021/nn500873q

A route toward digital manipulation of water nanodroplets on surfaces

Meng Cheng, Duoming Wang, Zhaoru Sun, Jing Zhao, Rong Yang, Guole Wang, Wei Yang, Guibai Xie, Jing Zhang, Peng Chen, Congli He, Donghua Liu, Limei Xu, Dongxia Shi, Enge Wang, Guangyu Zhang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

Manipulation of an isolated water nanodroplet (WN) on certain surfaces is important to various nanofluidic applications but challenging. Here we present a digital nanofluidic system based on a graphene/water/mica sandwich structure. In this architecture, graphene provides a flexible protection layer to isolate WNs from the outside environment, and a monolayer ice-like layer formed on the mica surface acts as a lubricant layer to allow these trapped WNs to move on it freely. In combination with scanning probe microscope techniques, we are able to move, merge, and separate individual water nanodroplets in a controlled manner. The smallest manipulatable water nanodroplet has a volume down to yoctoliter (10^-24 L) scale.

Original language	English
Pages (from-to)	3955-3960
Number of pages	6
Journal	ACS Nano
Volume	8
Issue number	4
DOIs	https://doi.org/10.1021/nn500873q
Publication status	Published - 22 Apr 2014
Externally published	Yes

Keywords

atomic force microscope
graphene cover
ice-like layer
molecular dynamics simulation
nanofluidic manipulation

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10.1021/nn500873q

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abstract = "Manipulation of an isolated water nanodroplet (WN) on certain surfaces is important to various nanofluidic applications but challenging. Here we present a digital nanofluidic system based on a graphene/water/mica sandwich structure. In this architecture, graphene provides a flexible protection layer to isolate WNs from the outside environment, and a monolayer ice-like layer formed on the mica surface acts as a lubricant layer to allow these trapped WNs to move on it freely. In combination with scanning probe microscope techniques, we are able to move, merge, and separate individual water nanodroplets in a controlled manner. The smallest manipulatable water nanodroplet has a volume down to yoctoliter (10-24 L) scale.",

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T1 - A route toward digital manipulation of water nanodroplets on surfaces

AU - Cheng, Meng

AU - Wang, Duoming

AU - Sun, Zhaoru

AU - Zhao, Jing

AU - Yang, Rong

AU - Wang, Guole

AU - Yang, Wei

AU - Xie, Guibai

AU - Zhang, Jing

AU - Chen, Peng

AU - He, Congli

AU - Liu, Donghua

AU - Xu, Limei

AU - Shi, Dongxia

AU - Wang, Enge

AU - Zhang, Guangyu

PY - 2014/4/22

Y1 - 2014/4/22

N2 - Manipulation of an isolated water nanodroplet (WN) on certain surfaces is important to various nanofluidic applications but challenging. Here we present a digital nanofluidic system based on a graphene/water/mica sandwich structure. In this architecture, graphene provides a flexible protection layer to isolate WNs from the outside environment, and a monolayer ice-like layer formed on the mica surface acts as a lubricant layer to allow these trapped WNs to move on it freely. In combination with scanning probe microscope techniques, we are able to move, merge, and separate individual water nanodroplets in a controlled manner. The smallest manipulatable water nanodroplet has a volume down to yoctoliter (10-24 L) scale.

AB - Manipulation of an isolated water nanodroplet (WN) on certain surfaces is important to various nanofluidic applications but challenging. Here we present a digital nanofluidic system based on a graphene/water/mica sandwich structure. In this architecture, graphene provides a flexible protection layer to isolate WNs from the outside environment, and a monolayer ice-like layer formed on the mica surface acts as a lubricant layer to allow these trapped WNs to move on it freely. In combination with scanning probe microscope techniques, we are able to move, merge, and separate individual water nanodroplets in a controlled manner. The smallest manipulatable water nanodroplet has a volume down to yoctoliter (10-24 L) scale.

KW - atomic force microscope

KW - graphene cover

KW - ice-like layer

KW - molecular dynamics simulation

KW - nanofluidic manipulation

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JO - ACS Nano

JF - ACS Nano

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ER -

A route toward digital manipulation of water nanodroplets on surfaces

Abstract

Keywords

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