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Fiber-optic biosensor to assess circulating phagocyte activity by chemiluminescence
Moni Magrisso1, Ohad Etzion, Greg Pilch
1National Institute for Biotechnology in The Negev, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel.
Biosensors & Bioelectronics
|June 28, 2005
Summary
A new computerized luminometer enables simultaneous measurement of chemiluminescence from multiple blood samples. This fiber-optic biosensor system efficiently monitors phagocyte activity for diverse analytical applications.
Area of Science:
- Biomedical Engineering
- Analytical Chemistry
- Immunology
Background:
- Phagocyte activity is crucial in immune response and disease.
- Accurate measurement of phagocyte chemiluminescence is vital for diagnostics.
- Existing methods for measuring chemiluminescence can be complex and time-consuming.
Purpose of the Study:
- To develop a novel computerized multi-sample temperature-controlled luminometer.
- To integrate this luminometer with a fiber array-based biosensor.
- To enable efficient monitoring of circulating phagocyte activity.
Main Methods:
- Construction of a computerized multi-sample temperature-controlled luminometer.
- Utilizing optical fibers as both light guides and sample holders.
- Simultaneous integral measurement of chemiluminescence from up to six whole blood samples (<0.5 microl).
Main Results:
- The developed luminometer allows simultaneous measurements without sample or detector movement.
- Optical fibers serve dual roles, simplifying extracellular and intracellular chemiluminescence assessment.
- Proof-of-principle experiments demonstrate the biosensor's utility.
Conclusions:
- The novel luminometer and fiber-optic biosensor system offer an efficient method for monitoring phagocyte activity.
- This technology simplifies the assessment of phagocyte-emitted chemiluminescence.
- Potential applications span various fields including clinical medicine and toxicology.