Thermo Scientific KingFisher PlasmidPro Automated Plasmid Purification System
| Brand | Thermo Scientific |
|---|---|
| Origin | USA |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Imported Instrument |
| Model | KingFisher PlasmidPro |
| Pricing | Available upon Request |
Overview
The Thermo Scientific KingFisher PlasmidPro Automated Plasmid Purification System is an engineered benchtop platform designed for high-yield, reproducible isolation of transfection-grade plasmid DNA (pDNA) from bacterial cultures. Leveraging magnetic bead-based solid-phase extraction technology, the system automates all critical steps—including cell lysis, neutralization, binding, washing, and elution—without manual intervention after initial sample loading. It operates on the principle of paramagnetic particle capture under controlled magnetic fields, enabling selective pDNA binding in high-salt chaotropic conditions followed by stringent washes to remove RNA, proteins, endotoxins, and genomic DNA contaminants. Optimized for scalability and consistency, the KingFisher PlasmidPro processes up to 150 mL of E. coli culture per run, delivering concentrated, endotoxin-reduced pDNA suitable for demanding downstream applications such as mammalian transfection, recombinant protein expression, CRISPR vector assembly, DNA sequencing library preparation, and preclinical gene therapy vector manufacturing.
Key Features
- Complete walk-away automation: Single-touch initiation with <5 minutes of hands-on time per run
- 75-minute total runtime from culture input to eluted pDNA
- Dedicated pre-packaged, ready-to-use consumable cartridges—available in standard and low-endotoxin configurations (<0.1 EU/µg pDNA)
- Integrated thermal control during lysis and neutralization steps to ensure optimal alkaline lysis kinetics and minimize shearing
- Onboard real-time monitoring of magnetic bead dispersion, liquid handling accuracy, and protocol progression
- Modular design compatible with standard 96-well plate formats and 15–50 mL conical tubes
- Compliance-ready architecture supporting audit trails, user access levels, and electronic signature capability (aligned with FDA 21 CFR Part 11 readiness when deployed with compliant LIMS or ELN integration)
Sample Compatibility & Compliance
The KingFisher PlasmidPro supports a broad range of common cloning strains including DH5α, TOP10, and Stbl3, with validated performance across high-copy (e.g., pUC-based) and medium-copy (e.g., pBR322-derived) plasmids. Each cartridge is sterilized and certified for endotoxin-free processing, meeting ISO 13485 manufacturing standards. The system adheres to Good Laboratory Practice (GLP) and Good Manufacturing Practice (GMP)-adjacent workflows through traceable reagent lot tracking, instrument calibration logs, and configurable run reports. All purification protocols are optimized to meet USP <1043> and ISO 20387 requirements for nucleic acid purity assessment, including A260/A280 ≥1.8 and A260/A230 ≥2.0 ratios, alongside >85% supercoiled isoform recovery confirmed by agarose gel electrophoresis and capillary electrophoresis.
Software & Data Management
The KingFisher PlasmidPro is operated via Thermo Scientific™ Connect Software—a secure, role-based interface supporting method creation, validation, and version control. All runs generate timestamped digital records containing instrument parameters, consumable lot IDs, environmental sensor data (temperature/humidity), and QC flagging for out-of-spec events. Export options include CSV, PDF, and XML formats compatible with laboratory information management systems (LIMS) and electronic lab notebooks (ELN). Audit trail functionality complies with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available), facilitating internal audits and regulatory inspections under ICH GCP, FDA, and EMA guidelines.
Applications
- High-throughput plasmid production for transient and stable transfection in CHO, HEK293, and iPSC lines
- Preparation of clinical-grade pDNA for non-viral gene delivery vectors and DNA vaccine development
- Supporting CRISPR-Cas9 gRNA cloning, base editing construct assembly, and synthetic biology workflows
- QC release testing in biomanufacturing environments requiring batch-to-batch comparability
- Core facility deployment where standardized, operator-independent pDNA output is essential for multi-user access
FAQ
What is the maximum culture volume supported per run?
The system is validated for inputs ranging from 100–150 mL of mid-log phase E. coli culture.
Can the KingFisher PlasmidPro be integrated into existing robotic liquid handling ecosystems?
Yes—it features RS-232 and Ethernet connectivity for bidirectional communication with third-party automation platforms and LIMS.
Are custom protocol modifications permitted?
Users may adjust incubation times, wash volumes, and elution temperatures within defined safety limits; however, full method validation is required for regulated use.
How is endotoxin removal achieved in the low-endotoxin cartridge?
Through proprietary silica-coated magnetic beads functionalized with ligands that selectively bind pDNA while excluding lipopolysaccharide aggregates during high-stringency wash steps.
Is the system compliant with ISO 13485 or FDA 21 CFR Part 11?
While the hardware and software are designed to support compliance, formal validation must be performed by the end user in their operational context per applicable regulatory frameworks.
