Development of a nanotechnology-based approach for capturing and detecting nucleic acids by using flow cytometry

Area of Science:

• Molecular Biology
• Nanotechnology
• Biotechnology

Background:

• Nucleic acid diagnostics are crucial for genetic disease detection and infectious disease outbreak management.
• Developing cost-effective and user-friendly nucleic acid analysis systems is a significant challenge.
• Existing methods may lack the resolution or accessibility required for widespread clinical application.

Purpose of the Study:

• To develop an innovative, low-cost, and user-friendly system for nucleic acid detection and analysis.
• To combine nanotechnology with dynamic chemical labeling (DCL) for single-base resolution nucleic acid reading.
• To establish a proof-of-concept assay for detecting clinically relevant mutations, specifically in KRAS codon 12.

Main Methods:

• Integration of a nanotechnology-based approach with dynamic chemical labeling (DCL) technology.
• Development of a system capable of detecting biotinylated molecular products.
• Utilizing a standard flow cytometer for simple and widely accessible detection.

Main Results:

• The combined system achieves single-base resolution in nucleic acid analysis.
• The assay successfully detects mutations in KRAS codon 12, a key factor in cancer.
• The method demonstrates ease of implementation using a standard flow cytometer.

Conclusions:

• The developed nanotechnology-DCL system provides a powerful tool for nucleic acid-based molecular diagnostics.
• This approach offers a cost-effective and accessible solution for detecting genetic mutations and managing disease outbreaks.
• The system's compatibility with standard laboratory equipment facilitates its clinical translation.