Advanced multiplexed analysis with the FlowMetrix system

Area of Science:

• Biotechnology
• Analytical Chemistry
• Molecular Biology

Background:

• Flow cytometry is a powerful technique for cell analysis.
• Multiplexed assays allow for simultaneous detection of multiple targets.
• Existing platforms may have limitations in the number of detectable analytes.

Purpose of the Study:

• To introduce the FlowMetrix System, a novel platform for multiplexed flow cytometric analysis.
• To demonstrate the system's capability for simultaneous measurement of up to 64 analytes.
• To showcase its application in immunoassays and DNA sequence analysis.

Main Methods:

• The FlowMetrix System utilizes 64 distinct sets of fluorescent microspheres.
• Microspheres are modified with specific reactive components (antigens, antibodies, oligonucleotides).
• A standard flow cytometer is interfaced with a PC for digital signal processing and real-time data analysis.

Main Results:

• The system successfully performed qualitative and quantitative immunoassays for multiple serum proteins.
• It was also utilized for DNA sequence analysis using multiplexed competitive hybridization with 16 oligonucleotide probes.
• Simultaneous measurement of multiple independent reactions was achieved in real-time.

Conclusions:

• The FlowMetrix System offers a robust solution for high-throughput, multiplexed flow cytometric analysis.
• It significantly expands the capacity for analyte detection in various biological assays.
• The platform demonstrates versatility for both protein and nucleic acid analysis.