Modular microfluidic valve structures based on reversible thermoresponsive ionogel actuators

被引：51

作者：

Benito-Lopez, Fernando ^{[1
,3
]}

Antonana-Diez, Marta ^{[1
,2
]}

Curto, Vincenzo F. ^{[3
]}

Diamond, Dermot ^{[3
]}

Castro-Lopez, Vanessa ^{[1
]}

机构：

[1] CIC microGUNE, Arrasate Mondragon, Spain

[2] IK4 IKERLAN, Arrasate Mondragon, Spain

[3] Dublin City Univ, Natl Ctr Sensor Res, Insight Ctr Data Analyt, Dublin 9, Ireland

来源：

LAB ON A CHIP | 2014年 / 14卷 / 18期

基金：

爱尔兰科学基金会;

关键词：

ISOTHERMAL DEHYDRATION; COLLOIDAL MICROGELS; ACID) HYDROGEL; FLOW-CONTROL; MICROVALVES; WATER; GELS;

D O I：

10.1039/c4lc00568f

中图分类号：

Q5 [生物化学];

学科分类号：

070307 [化学生物学];

摘要：

This paper reports for the first time the use of a cross-linked poly(N-isopropylacrylamide) ionogel encapsulating the ionic liquid 1-ethyl-3-methylimidazolium ethyl sulphate as a thermoresponsive and modular microfluidic valve. The ionogel presents superior actuation behaviour to its equivalent hydrogel. Ionogel swelling and shrinking mechanisms and kinetics are investigated as well as the performance of the ionogel when integrated as a valve in a microfluidic device. The modular microfluidic valve demonstrates fully a reversible on-off behaviour without failure for up to eight actuation cycles and a pressure resistance of 1100 mbar.

引用

页码：3530 / 3538

页数：9

共 32 条

[1]

Isothermal Dehydration of the Poly(acrylic -co-methacrylic acid) Hydrogel [J].