2013年10月
Back-and-forth micromotion of aqueous droplets in a dc electric field
PHYSICAL REVIEW E
- ,
- ,
- ,
- 巻
- 88
- 号
- 4
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevE.88.042918
- 出版者・発行元
- AMER PHYSICAL SOC
Recently, it was reported that an aqueous droplet in an oil phase exhibited rhythmic back-and-forth motion under stationary dc voltage on the order of 100 V. Here, we demonstrate that the threshold voltage for inducing such oscillation is successfully decreased to the order of 10 V through downsizing of the experimental system. Notably, the threshold electric field tends to decrease with a nonlinear scaling relationship accompanied by the downsizing. We derive a simple theoretical model to interpret the system size dependence of the threshold voltage. This model equation suggests the unique effect of additional noise, which is qualitatively characterized as a coherent resonance by an actual experiment as a kind of coherent resonance. Our result would provide insight into the construction of micrometer-sized self-commutating motors and actuators in microfluidic and micromechanical devices.
- リンク情報
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- DOI
- https://doi.org/10.1103/PhysRevE.88.042918
- PubMed
- https://www.ncbi.nlm.nih.gov/pubmed/24229260
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000326116800016&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-84886677189&partnerID=MN8TOARS
- URL
- http://orcid.org/0000-0002-6345-2106
- ID情報
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- DOI : 10.1103/PhysRevE.88.042918
- ISSN : 1539-3755
- eISSN : 1550-2376
- ORCIDのPut Code : 46981157
- PubMed ID : 24229260
- SCOPUS ID : 84886677189
- Web of Science ID : WOS:000326116800016