Smart microfluidic channels

被引:156
作者
Ionov, Leonid
Houbenov, Nikolay
Sidorenko, Alexander
Stamm, Manfred
Minko, Sergiy
机构
[1] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany
[2] Clarkson Univ, Dept Chem, Potsdam, NY 13699 USA
[3] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA
关键词
D O I
10.1002/adfm.200500562
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The walls of microfludic "smart channels" are coated by responsive mixed polymer brushes with a gradient of chemical composition. The concept of the smart channels is based on switching/adaptive behavior of the mixed polymer brushes where wetting and nonwetting can be tuned upon interaction with liquids. This design of microfluidic channels brings new opportunities for manipulating the passage of liquids in the channels. The developed approach allows us to fabricate three microfluidic elements for separation, sensing, selection, and dosing microvolumes of liquids.
引用
收藏
页码:1153 / 1160
页数:8
相关论文
共 60 条
[1]   Control of flow direction in microfluidic devices with polyelectrolyte multilayers [J].
Barker, SLR ;
Ross, D ;
Tarlov, MJ ;
Gaitan, M ;
Locascio, LE .
ANALYTICAL CHEMISTRY, 2000, 72 (24) :5925-5929
[2]   Functional hydrogel structures for autonomous flow control inside microfluidic channels [J].
Beebe, DJ ;
Moore, JS ;
Bauer, JM ;
Yu, Q ;
Liu, RH ;
Devadoss, C ;
Jo, BH .
NATURE, 2000, 404 (6778) :588-+
[3]   Liquid trains in a tube [J].
Bico, J ;
Quéré, D .
EUROPHYSICS LETTERS, 2000, 51 (05) :546-550
[4]   Rise of liquids and bubbles in angular capillary tubes [J].
Bico, J ;
Quéré, D .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2002, 247 (01) :162-166
[5]   Self-propelling slugs [J].
Bico, J ;
Quéré, D .
JOURNAL OF FLUID MECHANICS, 2002, 467 :101-127
[6]   Electrostatic free energy of weakly charged macromolecules in solution and intermacromolecular complexes consisting of oppositely charged polymers [J].
Biesheuvel, PM ;
Stuart, MAC .
LANGMUIR, 2004, 20 (07) :2785-2791
[7]   Vibration-actuated drop motion on surfaces for batch microfluidic processes [J].
Daniel, S ;
Chaudhury, MK ;
de Gennes, PG .
LANGMUIR, 2005, 21 (09) :4240-4248
[8]   Ratcheting motion of liquid drops on gradient surfaces [J].
Daniel, S ;
Sircar, S ;
Gliem, J ;
Chaudhury, MK .
LANGMUIR, 2004, 20 (10) :4085-4092
[9]   Rectified motion of liquid drops on gradient surfaces induced by vibration [J].
Daniel, S ;
Chaudhury, MK .
LANGMUIR, 2002, 18 (09) :3404-3407
[10]   Past drop movements resulting from the phase change on a gradient surface [J].
Daniel, S ;
Chaudhury, MK ;
Chen, JC .
SCIENCE, 2001, 291 (5504) :633-636