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Motion Driven by Strain Gradient Fields
Wang, Chao; Chen, Shaohua; Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Source PublicationSCIENTIFIC REPORTS
2015-09-01
Volume5Pages:13675
ISSN2045-2322
AbstractA new driving mechanism for direction-controlled motion of nano-scale objects is proposed, based on a model of stretching a graphene strip linked to a rigid base with linear springs of identical stiffness. We find that the potential energy difference induced by the strain gradient field in the graphene strip substrate can generate sufficient force to overcome the static and kinetic friction forces between the nano-flake and the strip substrate, resulting in the nanoscale flake motion in the direction of gradient reduction. The dynamics of the nano-flake can be manipulated by tuning the stiffness of linear springs, stretching velocity and the flake size. This fundamental law of directional motion induced by strain gradient could be very useful for promising designs of nanoscale manipulation, transportation and smart surfaces.; A new driving mechanism for direction-controlled motion of nano-scale objects is proposed, based on a model of stretching a graphene strip linked to a rigid base with linear springs of identical stiffness. We find that the potential energy difference induced by the strain gradient field in the graphene strip substrate can generate sufficient force to overcome the static and kinetic friction forces between the nano-flake and the strip substrate, resulting in the nanoscale flake motion in the direction of gradient reduction. The dynamics of the nano-flake can be manipulated by tuning the stiffness of linear springs, stretching velocity and the flake size. This fundamental law of directional motion induced by strain gradient could be very useful for promising designs of nanoscale manipulation, transportation and smart surfaces.
DOI10.1038/srep13675
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Indexed BySCI
Language英语
WOS IDWOS:000360376000002
WOS KeywordCARBON NANOTUBES ; THERMAL-GRADIENTS ; TRANSPORT ; NANOSCALE ; MOTORS ; DROPS
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
Funding OrganizationThe work reported here is supported by NSFC through Grants #11125211, #11372317 and the 973 Nano-project (2012CB937500).
DepartmentLNM仿生材料与固体的微尺度力学
Classification一类
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/55780
Collection非线性力学国家重点实验室
Corresponding AuthorChen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
AffiliationChinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Chao,Chen, Shaohua,Chen, SH . Motion Driven by Strain Gradient Fields[J]. SCIENTIFIC REPORTS,2015,5:13675.
APA Wang, Chao,Chen, Shaohua,&Chen, SH .(2015).Motion Driven by Strain Gradient Fields.SCIENTIFIC REPORTS,5,13675.
MLA Wang, Chao,et al."Motion Driven by Strain Gradient Fields".SCIENTIFIC REPORTS 5(2015):13675.
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