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Continuous flow analytical microsystems based on low-temperature co-fired ceramic technology. Integrated
Nuria Ibanez-Garcia1, Manel Bautista Mercader, Zaira Mendes da Rocha
1Grup de Sensors i Biosensors, Departament de Química Analítica, Edifici C, Universitat Autonoma de Barcelona, 08193 Cerdanyola del Vallés, Barcelona, Spain.
Analytical Chemistry
|April 29, 2006
Summary
Low-temperature co-fired ceramics (LTCC) technology offers a cost-effective method for creating continuous flow analytical microsystems. This approach allows for the integration of complex structures and analytical components for streamlined chemical analysis.
Area of Science:
- Materials Science
- Analytical Chemistry
- Microfluidics
Background:
- Low-temperature co-fired ceramics (LTCC) is a mature technology widely used in electronics.
- Continuous flow analytical microsystems offer advantages in sample handling and analysis speed.
- Integrating sensing elements into microfluidic devices is crucial for on-chip analysis.
Purpose of the Study:
- To demonstrate the utility of LTCC technology for fabricating continuous flow analytical microsystems.
- To present a general procedure for integrating ion-selective electrodes into LTCC-based microfluidic devices.
- To achieve complete on-chip potentiometric detection through integrated electrodes.
Main Methods:
- Fabrication of microfluidic structures using LTCC technology.
- Integration of liquid ion exchanger-based ion-selective membranes (ammonium and nitrate).
- Incorporation of a screen-printed reference electrode into the LTCC microfluidic device.
Main Results:
- Successful fabrication of LTCC-based microfluidic devices capable of continuous flow analysis.
- Demonstrated integration of ammonium- and nitrate-selective electrodes.
- Achieved on-chip potentiometric detection with the integrated reference electrode.
- Presented the analytical characteristics of the developed systems.
Conclusions:
- LTCC technology is a viable and cost-effective alternative for constructing advanced analytical microsystems.
- The proposed method allows for the facile integration of ion-selective electrodes and reference electrodes for complete on-chip potentiometric sensing.
- This work paves the way for developing more complex and integrated microfluidic devices for various analytical applications.