Clarity™ digital PCR system: a novel platform for absolute quantification of nucleic acids

Area of Science:

• Biomedical research
• Molecular biology
• Genetics

Background:

• Digital polymerase chain reaction (dPCR) offers precise nucleic acid quantification without standard curves.
• Widespread adoption of dPCR is limited by complex workflows involving sample partitioning.
• The Clarity™ system by JN Medsys aims to streamline dPCR through innovative chip-in-a-tube technology.

Purpose of the Study:

• To evaluate the performance of the Clarity™ system for digital PCR applications.
• To assess the accuracy, precision, and linearity of the Clarity™ system.
• To compare the Clarity™ system with existing dPCR platforms.

Main Methods:

• Quantification of the single-copy human RNase P gene using the Clarity™ system.
• Assessment of linearity across four orders of magnitude.
• Testing compatibility with various probe- and dye-based master mixes.
• Comparative analysis with the Bio-Rad QX100™ droplet dPCR system using DNA reference materials.

Main Results:

• The Clarity™ system demonstrated high precision and accuracy in quantifying the target gene.
• Excellent linearity was observed across a wide dynamic range (>4 orders of magnitude).
• Consistent DNA copy measurements were achieved with different master mixes, indicating broad compatibility.
• Copy number concentrations from Clarity™ closely correlated with those from the QX100™ system.

Conclusions:

• The Clarity™ system provides a reliable, robust, and flexible platform for digital PCR.
• The novel chip-in-a-tube technology simplifies dPCR workflow, enhancing accessibility.
• Clarity™ is a promising tool for next-generation genetic analysis and nucleic acid quantification.