Fabrication of a microfluidic cell analyzer in a microchannel using impedance spectroscopy

被引:11
作者
Gawad, S [1 ]
Heuschkel, M [1 ]
Leung-Ki, Y [1 ]
Iuzzolino, R [1 ]
Schild, L [1 ]
Lerch, P [1 ]
Renaud, P [1 ]
机构
[1] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, DMT, IMS, CH-1015 Lausanne, Switzerland
来源
1ST ANNUAL INTERNATIONAL IEEE-EMBS SPECIAL TOPIC CONFERENCE ON MICROTECHNOLOGIES IN MEDICINE & BIOLOGY, PROCEEDINGS | 2000年
关键词
D O I
10.1109/MMB.2000.893791
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The design, fabrication techniques and characterization of an on-chip flow-cytometer device as well as the packaging approach is described. The device consists of planar microelectrodes situated on one or both sides of a micro-channel connected to an electronic detection circuitry. Simulations of the cells effect on the channel impedance are presented and compared with real measurements. Efforts have particularly been focused on realizing an interconnnecting setup to provide easy electrical and fluidic connections, to allow good monitoring and easy handling of the chip. Our cell analyzer is aimed at diagnostic applications for cell counting and separation in hematology (blood cells, leukocytes and reticulocytes). Another possible application is a micro-cell sorter that can be used to separate abnormal cell types that are present in samples at very low number such as cancer cells (cancer cytology).
引用
收藏
页码:297 / 301
页数:5
相关论文
共 6 条
[1]   Electric impedance spectroscopy using microchannels with integrated metal electrodes [J].
Ayliffe, HE ;
Frazier, AB ;
Rabbitt, RD .
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 1999, 8 (01) :50-57
[2]   LINEAR AC ELECTRODE POLARIZATION IMPEDANCE AT SMOOTH NOBLE-METAL INTERFACES [J].
DEROSA, JF ;
BEARD, RB .
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1977, 24 (03) :260-268
[3]   FLOW-SYSTEM MEASUREMENT OF CELL IMPEDANCE PROPERTIES [J].
HOFFMAN, RA ;
BRITT, WB .
JOURNAL OF HISTOCHEMISTRY & CYTOCHEMISTRY, 1979, 27 (01) :234-240
[4]   DESIGN OPTIMIZATION OF PLANAR ELECTROLYTIC CONDUCTIVITY SENSORS [J].
JACOBS, P ;
VARLAN, A ;
SANSEN, W .
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING, 1995, 33 (06) :802-810
[5]   3-DIMENSIONAL FINITE-ELEMENT SOLUTION FOR BIOPOTENTIALS - ERYTHROCYTE IN AN APPLIED FIELD [J].
MILLER, CE ;
HENRIQUEZ, CS .
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1988, 35 (09) :712-718
[6]   Nanoscaled interdigitated electrode arrays for biochemical sensors [J].
Van Gerwen, P ;
Laureyn, W ;
Laureys, W ;
Huyberechts, G ;
De Beeck, MO ;
Baert, K ;
Suls, J ;
Sansen, W ;
Jacobs, P ;
Hermans, L ;
Mertens, R .
SENSORS AND ACTUATORS B-CHEMICAL, 1998, 49 (1-2) :73-80