Two-terminal longitudinal hotwire sensor for monitoring the position and speed of advancing liquid fronts in microfluidic channels

被引:4
作者
Ryu, KS [1 ]
Shaikh, K [1 ]
Goluch, E [1 ]
Liu, C [1 ]
机构
[1] Univ Illinois, Micro & Nanotechnol Lab, Urbana, IL 61801 USA
基金
美国国家科学基金会;
关键词
D O I
10.1063/1.2180447
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report a simple and practical sensor for monitoring both the absolute position and advancing speed of liquid front in a microfluidic channel. The sensor consists of a longitudinal hot wire element-a two-terminal electrical device, with its length spanning the entire channel. The design, materials, fabrication method, and use of this sensor are extremely simple. Characterization results are presented. (c) 2006 American Institute of Physics.
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页数:3
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共 13 条
[1]   A miniature integrated device for automated multistep genetic assays [J].
Anderson, Rolfe C. ;
Su, Xing ;
Bogdan, Gregory J. ;
Fenton, Jeffery .
NUCLEIC ACIDS RESEARCH, 2000, 28 (12)
[2]   An integrated nanoliter DNA analysis device [J].
Burns, MA ;
Johnson, BN ;
Brahmasandra, SN ;
Handique, K ;
Webster, JR ;
Krishnan, M ;
Sammarco, TS ;
Man, PM ;
Jones, D ;
Heldsinger, D ;
Mastrangelo, CH ;
Burke, DT .
SCIENCE, 1998, 282 (5388) :484-487
[3]   Development and characterization of surface micromachined, out-of-plane hot-wire anemometer [J].
Chen, J ;
Liu, C .
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 2003, 12 (06) :979-988
[4]   A microfabricated device for sizing and sorting DNA molecules [J].
Chou, HP ;
Spence, C ;
Scherer, A ;
Quake, S .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (01) :11-13
[5]  
GASS V, 1993, MICRO ELECTRO MECHANICAL SYSTEMS, PROCEEDINGS, P167
[6]   VIBRATING CANTILEVER MASS-FLOW SENSOR [J].
HETRICK, RE .
SENSORS AND ACTUATORS A-PHYSICAL, 1990, 21 (1-3) :373-376
[7]   A nanoliter-scale nucleic acid processor with parallel architecture [J].
Hong, JW ;
Studer, V ;
Hang, G ;
Anderson, WF ;
Quake, SR .
NATURE BIOTECHNOLOGY, 2004, 22 (04) :435-439
[8]   Pressure loss in constriction microchannels [J].
Lee, WY ;
Wong, M ;
Zohar, Y .
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 2002, 11 (03) :236-244
[9]   Plastic biochannel hybridization devices: a new concept for microfluidic DNA arrays [J].
Lenigk, R ;
Liu, RH ;
Athavale, M ;
Chen, ZJ ;
Ganser, D ;
Yang, JN ;
Rauch, C ;
Liu, YJ ;
Chan, B ;
Yu, HN ;
Ray, M ;
Marrero, R ;
Grodzinski, P .
ANALYTICAL BIOCHEMISTRY, 2002, 311 (01) :40-49
[10]  
Meng E., 2003, TRANSDUCERS SOLID ST, V1, P686