Full-Automated Thermal Cycler in Nucleic Acid Testing Workstation.

Area of Science:

• Biotechnology
• Molecular Biology
• Laboratory Automation

Background:

• Laboratory automation faces challenges integrating diverse, semi-automated devices lacking standard interfaces.
• Existing polymerase chain reaction (PCR) systems are often difficult to incorporate into comprehensive automated workstations.

Purpose of the Study:

• To develop and present a fully automated thermal cycler system (AutoTCS) designed for integration into automated nucleic acid testing (NAT) workstations.
• To evaluate the performance and suitability of the AutoTCS as both a standalone PCR system and a module within a NAT workstation.

Main Methods:

• Development of the AutoTCS featuring a 96-well thermo-cycler and a sliding hot lid for efficient PCR.
• Implementation of PC software and a touchscreen interface with a graphical user interface (GUI) for system control.
• Performance validation using standard PCR protocols for the PLCE1 gene and hepatitis B virus (HBV) DNA.

Main Results:

• The AutoTCS achieved high temperature accuracy (±0.1 °C) and rapid thermal cycling rates (heating: ~2.5 °C/sec, cooling: ~1.6 °C/sec).
• Demonstrated excellent PCR performance when tested with both PLCE1 gene and HBV DNA targets.
• The system proved versatile, functioning effectively as a standalone PCR unit and as an integrated module in an automated NAT workstation.

Conclusions:

• The AutoTCS is a robust, fully automated thermal cycler suitable for advanced laboratory automation, particularly in nucleic acid testing.
• Its design facilitates seamless integration into automated workflows, enhancing efficiency and reliability in molecular diagnostics.
• The system's performance validates its capability for high-quality PCR amplification in diverse applications.