An advanced micromachined fermentation monitoring device

被引:3
作者
Kalinowski, T [1 ]
Rittersma, ZM [1 ]
Benecke, W [1 ]
Binder, J [1 ]
机构
[1] Univ Bremen, IMSAS, D-28334 Bremen, Germany
关键词
porous silicon; biomass; PECVD; comb electrodes; dielectric measurement;
D O I
10.1016/S0925-4005(00)00445-7
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
This paper describes the design and fabrication of a novel sensor for the monitoring of fermentation processes, e.g. the time-resolved amount of living cells in fluids, The device consists of two comb-electrodes patterned on a freestanding membrane. The novelty of this device is the capability to clean it ultrasonically on chip, i.e. by electrostatic excitation of the membrane on which the electrodes are placed. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:281 / 285
页数:5
相关论文
共 21 条
[1]  
BERNSTEIN J, 1994, SOLID STATES SENS AC, V16, P73
[2]   Ultrasound barrier microsystem for object detection based on micromachined transducer elements [J].
Brand, O ;
Hornung, M ;
Baltes, H ;
Hafner, C .
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 1997, 6 (02) :151-160
[3]   Wide bandwidth silicon nitride membrane microphones [J].
Cunningham, BT ;
Bernstein, JJ .
MICROMACHINING AND MICROFABRICATION PROCESS TECHNOLOGY III, 1997, 3223 :56-63
[4]   A surface micromachined electrostatic ultrasonic air transducer [J].
Haller, MI ;
KhuriYakub, BT .
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1996, 43 (01) :1-6
[5]  
Hasted J. B., 1973, AQUEOUS DIELECTRICS
[6]  
HORNUNG M, 1995, EUROSENSORS STOCKHOL, V9, P620
[7]  
HORWATH P, 1995, TRANSDUCERS, V95, P696
[8]  
INOUE K, 1995, TRANSDUCERS, V95, P616
[9]   Frontside bulk silicon micromachining using porous-silicon technology [J].
Kaltsas, G ;
Nassiopoulou, AG .
SENSORS AND ACTUATORS A-PHYSICAL, 1998, 65 (2-3) :175-179
[10]   Single-chip condenser microphone using porous silicon as sacrificial layer for the air gap [J].
Kronast, W ;
Muller, B ;
Siedel, W ;
Stoffel, A .
MICRO ELECTRO MECHANICAL SYSTEMS - IEEE ELEVENTH ANNUAL INTERNATIONAL WORKSHOP PROCEEDINGS, 1998, :591-596