A physico-chemical timer: autonomous time-delayed microfluidic valves for environmental applications

被引：1
作者：
Tuccitto, Nunzio [1 ,2 ]
机构：
[1] Univ Catania, Dept Chem Sci, Lab Mol Surfaces & Nanotechnol, Viale A Doria 6, I-95125 Catania, Italy
[2] CSGI, Viale A Doria 6, I-95125 Catania, Italy
来源：
MICROFLUIDICS AND NANOFLUIDICS | 2016年 / 20卷 / 09期
关键词：
Dissolvable; Actuator; Crystal; Valves; Timer; PROGRAMMING MULTISTEP ASSAYS; CONTROLLED-RELEASE; MICROVALVE; DESIGN; FLOW;
D O I：
10.1007/s10404-016-1795-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
New strategy in design of single-use burst microfluidic valves is based on the physico-chemical properties of the valve actuator. The different dissolution rates of salt-based actuators allowed the control of the timing of the opening of the autonomous timed microfluidic valves in the range of seconds to a few minutes by using, as dissolvable actuators, NaCl crystals and for range between several minutes and hours by using actuators made of CuSO4 crystals. Autonomous timed microfluidic valves are successfully used to determine the concentration distribution of a contaminant tracer in groundwater at scheduled times.
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页数：7
相关论文
共 26 条
[1]  
Baedecker M.J., 1992, GROUNDWATER QUALITY, P425
[2]   Controlling flow in microfluidic channels with a manually actuated pin valve [J].
Brett, Marie-Elena ;
Zhao, Shuping ;
Stoia, Jonathan L. ;
Eddington, David T. .
BIOMEDICAL MICRODEVICES, 2011, 13 (04) :633-639
[3]   Fructose Solubility in Mixed (Ethanol plus Water) Solvent: Experimental Data and Comparison among Different Thermodynamic Models [J].
Crestani, Carlos E. ;
Bernardo, Andre ;
Costa, Caliane B. B. ;
Giulietti, Marco .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2013, 58 (11) :3039-3045
[4]   Autonomous microfluidics with stimuli-responsive hydrogels [J].
Dong, Liang ;
Jiang, Hongrui .
SOFT MATTER, 2007, 3 (10) :1223-1230
[5]   INDIRECT SPECTROPHOTOMETRIC DETERMINATION OF TRACES OF BROMIDE IN WATER [J].
FISHMAN, MJ ;
SKOUGSTA.MW .
ANALYTICAL CHEMISTRY, 1963, 35 (02) :146-&
[6]   Controlled reagent transport in disposable 2D paper networks [J].
Fu, Elain ;
Lutz, Barry ;
Kauffman, Peter ;
Yager, Paul .
LAB ON A CHIP, 2010, 10 (07) :918-920
[7]   Centrifugo-pneumatic valving utilizing dissolvable films [J].
Gorkin, Robert, III ;
Nwankire, Charles E. ;
Gaughran, Jennifer ;
Zhang, Xin ;
Donohoe, Gerard G. ;
Rook, Martha ;
O'Kennedy, Richard ;
Ducree, Jens .
LAB ON A CHIP, 2012, 12 (16) :2894-2902
[8]   Microfluidics - a review [J].
Gravesen, Peter ;
Branebjerg, Jens ;
Jensen, Ole Sondergard .
Journal of Micromechanics and Microengineering, 1993, 3 (04) :168-182
[9]   Ice valve for a mini/micro flow channel [J].
Gui, L ;
Liu, J .
JOURNAL OF MICROMECHANICS AND MICROENGINEERING, 2004, 14 (02) :242-246
[10]   Paper-based microfluidics with an erodible polymeric bridge giving controlled release and timed flow shutoff [J].
Jahanshahi-Anbuhi, Sana ;
Henry, Aleah ;
Leung, Vincent ;
Sicard, Clemence ;
Pennings, Kevin ;
Pelton, Robert ;
Brennan, John D. ;
Filipe, Carlos D. M. .
LAB ON A CHIP, 2014, 14 (01) :229-236
123