Non-Contact Temperature Control System Applicable to Polymerase Chain Reaction on a Lab-on-a-Disc

Area of Science:

• Biotechnology
• Microfluidics
• Molecular Diagnostics

Background:

• Conventional nucleic acid tests often rely on polymerase chain reaction (PCR) and fluorescent amplicon detection.
• Integrating PCR onto lab-on-a-disc (LOD) platforms presents challenges in precise thermal cycling and non-contact temperature control.
• Rotating LODs require temperature control systems without physical connections.

Purpose of the Study:

• To develop and present a non-contact temperature control system for integrating conventional PCR onto a lab-on-a-disc.
• To overcome the limitations of precise temperature management during thermal cycling on a rotating disc.
• To enable seamless, integrated nucleic acid testing on a microfluidic platform.

Main Methods:

• Development of a novel non-contact temperature control system.
• Integration of the system with a lab-on-a-disc platform.
• Validation using PCR amplification and detection of Salmonella.

Main Results:

• The proposed system successfully controlled temperature for stable PCR amplification on the LOD.
• Demonstrated one-stop detection capabilities for Salmonella within a single PCR-LOD.
• Achieved reliable performance without connecting attachments, facilitating disc rotation.

Conclusions:

• The developed non-contact temperature control system effectively integrates PCR onto a lab-on-a-disc.
• This approach enables stable amplification and direct detection of target nucleic acids like Salmonella.
• The system offers a promising solution for simplified, integrated molecular diagnostics.