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Automated System for Single Molecule Fluorescence Measurements of Surface-immobilized Biomolecules
Published on: November 2, 2009
Parallel confocal detection of single molecules in real time
Paul M Lundquist1, Cheng F Zhong, Peiqian Zhao
1Pacific Biosciences Inc., 1505 Adams Drive, Menlo Park, California 94025, USA.
Optics Letters
|May 3, 2008
Summary
This study presents a novel parallel optical system for real-time analysis of thousands of sample locations. The technology enables rapid detection and identification of single fluorescent molecules across numerous volumes simultaneously.
Area of Science:
- Optical instrumentation
- Molecular detection
- Spectroscopy
Background:
- Confocal microscopy offers high resolution but is limited by serial scanning.
- High-throughput analysis is crucial for many biological and chemical applications.
Purpose of the Study:
- To develop a highly parallel optical system extending confocal detection.
- To enable real-time analysis of thousands of concurrent sample locations.
Main Methods:
- Utilized a holographic laser illumination multiplexer.
- Employed a confocal pinhole array and a prism dispersive element.
- Integrated spectroscopic analysis for each confocal volume.
Main Results:
- Demonstrated continuous analysis of thousands of concurrent sample locations.
- Successfully detected and identified single fluorescent molecules.
- Achieved real-time spectroscopic identification from multiple confocal volumes.
Conclusions:
- The developed system significantly enhances throughput for confocal microscopy.
- This parallel optical system enables rapid, multiplexed detection of fluorescent molecules.
- The technology has potential applications in high-throughput screening and molecular diagnostics.
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