Thermal molecular focusing: tunable cross effect of phoresis and light-driven hydrodynamic focusing

Tatsuya Fukuyama, Sho Nakama, Yusuke T. Maeda

研究成果: ジャーナルへの寄稿学術誌査読

6 被引用数 (Scopus)

抄録

The control of solute flux by either microscopic phoresis or hydrodynamic advection is a fundamental way to transport molecules, which are ubiquitously present in nature and technology. We study the transport of large solutes such as DNA driven by a time-dependent thermal field in a polymer solution. Heat propagation of a heat spot moving back and forth gives rise to the molecular focusing of DNA with frequency-tunable control. We develop a model where the viscoelastic expansion of a solution and the viscosity gradient of a smaller solute are coupled, which explains the underlying hydrodynamic focusing. This effect offers novel non-invasive manipulation of soft and biological materials in a frequency-tunable manner.

本文言語英語
ページ(範囲)5519-5524
ページ数6
ジャーナルSoft Matter
14
26
DOI
出版ステータス出版済み - 2018

!!!All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 凝縮系物理学

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