Rapid Programmable Nanodroplet Motion on a Strain-Gradient Surface

When a nanodroplet is placed on a lattice surface, an inhomogeneous surface strain field perturbs the balance of van der Waals force between the nanodroplet and surface, thus providing a net driving force for nanodroplet motion. Using molecular dynamics and theoretical analysis, we study the effect...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 35(2019), 7 vom: 19. Feb., Seite 2865-2870
1. Verfasser: Zhang, Baidu (VerfasserIn)
Weitere Verfasser: Liao, Xiangbiao, Chen, Youlong, Xiao, Hang, Ni, Yong, Chen, Xi
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a When a nanodroplet is placed on a lattice surface, an inhomogeneous surface strain field perturbs the balance of van der Waals force between the nanodroplet and surface, thus providing a net driving force for nanodroplet motion. Using molecular dynamics and theoretical analysis, we study the effect of strain gradient on modulating the movement of a nanodroplet. Both modeling and simulation show that the driving force is opposite to the direction of strain gradient, with a magnitude that is proportional to the strain gradient as well as nanodroplet size. Two representative surfaces, graphene and copper (111) plane, are exemplified to demonstrate the controllable motion of the nanodroplet. When the substrate undergoes various types of reversible deformations, multiple motion modes of nanodroplets can be feasibly achieved, including acceleration, deceleration, and turning, becoming a facile strategy to manipulate nanodroplets along a designed two-dimensional pathway 
650 4 |a Journal Article 
700 1 |a Liao, Xiangbiao  |e verfasserin  |4 aut 
700 1 |a Chen, Youlong  |e verfasserin  |4 aut 
700 1 |a Xiao, Hang  |e verfasserin  |4 aut 
700 1 |a Ni, Yong  |e verfasserin  |4 aut 
700 1 |a Chen, Xi  |e verfasserin  |4 aut 
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