Controlling drop size and polydispersity using chemically patterned surfaces

被引：34

作者：

Kusumaatmaja, H. ^{[1
]}

Yeomans, J. M. ^{[1
]}

机构：

[1] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England

来源：

LANGMUIR | 2007年 / 23卷 / 02期

关键词：

D O I：

10.1021/la062082w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We explore numerically the feasibility of using chemical patterning to control the size and polydispersity of micrometer-scale drops. The simulations suggest that it is possible to sort drops by size or wetting properties by using an array of hydrophilic stripes of different widths. We also demonstrate that monodisperse drops can be generated by exploiting the pinning of a drop on a hydrophilic stripe. Our results follow from using a lattice Boltzmann algorithm to solve the hydrodynamic equations of motion of the drops and demonstrate the applicability of this approach as a design tool for micofluidic devices with chemically patterned surfaces.

引用

页码：956 / 959

页数：4

共 34 条

[21] Multiple separation of self-running drops by pinching a three-phase contact line [J].