Nucleic Acid Lateral Flow Assays - A Review on Oligonucleotide-Based Methods

Area of Science:

• Biotechnology
• Molecular Diagnostics
• Biosensing

Background:

• Nucleic Acid Lateral Flow Assays (NALFAs) are increasingly vital for DNA and RNA detection, especially for pathogen screening.
• Traditional NALFAs often depend on antibody-antigen interactions, but oligonucleotide-based recognition offers versatile alternatives.

Purpose of the Study:

• To review oligonucleotide-based Nucleic Acid Lateral Flow Assays (NALFAs).
• To cover detection strategies, readout methods, signal amplification, and analytical performance.
• To highlight commercial applications and emerging innovations in NALFA technology.

Main Methods:

• Literature review focusing on oligonucleotide-based NALFAs.
• Analysis of detection and signal amplification strategies.
• Evaluation of analytical performance and commercial viability.

Main Results:

• Oligonucleotide-based recognition is a key strategy in modern NALFAs.
• Various detection and amplification methods enhance NALFA sensitivity and specificity.
• Significant commercial potential exists, particularly for RNA virus detection, including coronaviruses.

Conclusions:

• Oligonucleotide-based NALFAs represent a significant advancement in molecular diagnostics.
• The technology shows strong potential for rapid, specific pathogen detection and commercialization.
• Emerging innovations promise further improvements in NALFA capabilities.