Tolerance analysis of a micro-optical detection unit for fluorescence and absorbance measurements in lab-on-a-chip micro-channels for chromatographic applications

2008 ◽  
Author(s):  
Sara Van Overmeire ◽  
Heidi Ottevaere ◽  
Gert Desmet ◽  
Hugo Thienpont
Keyword(s):  
Optical Detection ◽  
Lab On A Chip ◽  
Tolerance Analysis ◽  
Micro Channels ◽  
Detection Unit

Fabrication of LTCC Micro-fluidic Devices For Wireless Lab-On-A-Chip Applications

2016 ◽  
Vol 2016 (CICMT) ◽  
pp. 000085-000088
Author(s):  
Achraf Ben Amar ◽  
Houssem Eddine Amor ◽  
Hung Cao ◽  
Ammar B. Kouki
Keyword(s):  
Microfluidic Channel ◽  
Lab On A Chip ◽  
Dielectric Materials ◽  
Capacitance Measurement ◽  
Fluid Identification ◽  
Sensing Systems ◽  
Microfluidic Chamber ◽  
Micro Channels ◽  
Fluidic Devices ◽  
Electrical Permittivity

Abstract Low temperature co-fired ceramic (LTCC) based microfluidic sensors have been developed for biomedical and environmental sensing systems. This paper introduces a microfluidic chamber based on impedance spectroscopy measurements using LTCC technology for wireless Lab-On-A-Chip (LOC) applications. To overcome the channel sagging during the fabrication process, we used sacrificial carbon tapes as solid inserts, thus guiding the LTCC to follow their shape upon lamination and then formed micro-channels. The measurement chamber was a parallel-plate capacitive structure with 85 μm gap. This platform requires a small fluid sample of less than 4 μL. The sensor formed by the microfluidic channel and capacitance structure was characterized using different dielectric materials such as air, water and acetone. We hereby present the capability of LTCC-based systems in fluid identification by detecting their electrical permittivity using capacitance measurement.

Lab-on-a-chip optical detection system using plastic fiber optics

2003 ◽  
Author(s):  
James N. McMullin ◽  
H. Qiao ◽  
Sanket Goel ◽  
S. A. McColman ◽  
A. Grundmann
Keyword(s):  
Fiber Optics ◽  
Detection System ◽  
Optical Detection ◽  
Lab On A Chip ◽  
Optical Detection System

AC Electrokinetic Pumps for Micro/NanoFluidics

2004 ◽  
Author(s):  
Junqing Wu ◽  
Gaurav Soni ◽  
Dazhi Wang ◽  
Carl D. Meinhart
Keyword(s):  
Electric Fields ◽  
Fluid Motion ◽  
Lab On A Chip ◽  
Dna Amplification ◽  
Aqueous Fluid ◽  
Working Fluid ◽  
High Frequencies ◽  
Electrode Surfaces ◽  
Ac Electric Fields ◽  
Micro Channels

We have developed micropumps for microfluidics that use AC electric fields to drive aqueous fluid motion through micro channels. These pumps operate at relatively low voltages (~5–10Vrms), and high frequencies (~100kHz). They have several distinct advantages over the DC electrokinetic pumps. The low voltages make the pumps well suited for a wide variety of biosensor and “Lab-on-a-Chip” applications (e.g. PCR chip for DNA amplification). The high frequencies minimize electrolysis, so that bubbles do not form on the electrode surfaces, and do not contaminate the working fluid. The pumps can also be used as active valves or precision micro-dispensers.

scholarly journals Recent Developments in Optical Detection Technologies in Lab-on-a-Chip Devices for Biosensing Applications

Sensors ◽  
2014 ◽  
Vol 14 (8) ◽  
pp. 15458-15479 ◽  
Author(s):  
Nuno Pires ◽  
Tao Dong ◽  
Ulrik Hanke ◽  
Nils Hoivik
Keyword(s):  
Optical Detection ◽  
Lab On A Chip ◽  
Recent Developments ◽  
Detection Technologies

scholarly journals Lab-on-a-Chip based device for an optical detection of immobilized cells for food analytics

2012 ◽  
Vol 57 (SI-1 Track-G) ◽  
Author(s):  
F. Sauter ◽  
R. Klemm ◽  
C. Gärtner ◽  
P. Miethe ◽  
S. Henze ◽  
...  
Keyword(s):  
Immobilized Cells ◽  
Optical Detection ◽  
Lab On A Chip

scholarly journals The optical detection unit for Baikal-GVD neutrino telescope

2016 ◽  
Vol 121 ◽  
pp. 05008
Author(s):  
A.D. Avrorin ◽  
A.V. Avrorin ◽  
V.M. Aynutdinov ◽  
R. Bannash ◽  
I.A. Belolaptikov ◽  
...  
Keyword(s):  
Optical Detection ◽  
Neutrino Telescope ◽  
Detection Unit
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