Ebaiao ZHT200 Fully Automated High-Throughput Nucleic Acid Extraction Platform

Overview

The Ebaiao ZHT200 Fully Automated High-Throughput Nucleic Acid Extraction Platform is an integrated sample preparation system engineered for precision, reproducibility, and scalability in molecular diagnostics, biobanking, and high-volume clinical testing environments. It implements an advanced column-based nucleic acid purification methodology—refined from classical chromatographic separation principles—to achieve selective binding, washing, and elution of DNA and RNA under controlled buffer conditions. Unlike magnetic bead-based systems, the ZHT200 leverages solid-phase silica-membrane technology with programmable vacuum or positive-pressure fluid handling, minimizing carryover and maximizing recovery consistency across diverse sample types—including whole blood, saliva, FFPE tissue lysates, and viral transport media. Its architecture centers on a synchronized robotic workflow: a four-axis Cartesian manipulator coordinates pipetting, plate handling, thermal incubation, heat sealing, and centrifugation without manual intervention—enabling unattended operation for up to 16 hours per cycle.

Key Features

• Four-axis robotic arm with ±1080° continuous R-axis rotation, enabling full workspace coverage and precise tip alignment across multiple deck modules.
• Z-axis repeatability of ±0.03 mm ensures consistent aspiration/dispense accuracy across 96- and 384-channel tip configurations.
• Integrated air compressor and programmable heat sealer (120–200 °C, 1–10 s dwell time) support universal sealing of PCR plates, deep-well plates, and foil/microseal films with height adjustment from 3 to 60 mm.
• Dual centrifuge integration options: ZD-1 (4000 rpm, 3000 × g) and ZD-2 (5500 rpm, 5010 × g), both featuring ±0.1° basket angular positioning for repeatable rotor orientation and balanced deceleration.
• Modular deck layout accommodates optional accessories—including temperature-controlled incubation blocks (4–95 °C), UV decontamination modules, and barcode readers—facilitating seamless expansion into end-to-end LIMS-linked workflows.
• Onboard vacuum manifold and pressure-controlled elution ensure uniform flow rates across all columns during binding and wash steps, reducing inter-well CVs to <5% (n=96, human genomic DNA).

Sample Compatibility & Compliance

The ZHT200 processes primary and processed biological specimens compliant with ISO 20387:2018 (biobanking) and CLSI EP17-A2 (limit of detection validation). It supports input volumes ranging from 50 µL to 1 mL per well and accommodates viscous matrices (e.g., sputum, stool homogenates) via adaptive aspiration algorithms. All liquid handling protocols adhere to ISO 8655-6 for gravimetric verification of volumetric performance. The system’s firmware and software architecture are designed to meet FDA 21 CFR Part 11 requirements: electronic signatures, role-based access control, immutable audit trails, and full data integrity logging (including timestamped event records for every pipette action, seal cycle, and centrifuge run). Instrument qualification documentation (IQ/OQ/PQ) templates are provided for GMP/GLP laboratory deployment.

Software & Data Management

Controlled via Ebaiao ExtractSoft v3.2, the platform offers a browser-based interface supporting method import/export in XML format, protocol versioning, and real-time monitoring of robotic status, temperature profiles, and centrifuge RPM curves. Raw extraction logs—including tip usage counters, seal temperature deviations, and vacuum pressure traces—are exported in CSV/JSON for integration with enterprise LIMS or ELN systems. Optional API endpoints enable bidirectional communication with hospital information systems (HIS) and sequencing core scheduling platforms. All software updates undergo regression testing per IEC 62304 Class B medical device standards.

Applications

• High-volume SARS-CoV-2, influenza, and RSV RT-qPCR testing in public health laboratories.
• Genome-wide association study (GWAS) sample preparation for biobanks processing >10,000 samples/day.
• Companion diagnostic workflows requiring traceable, low-contamination DNA isolation prior to NGS library prep.
• Automated extraction of cfDNA from plasma for liquid biopsy applications—validated with QIAamp Circulating Nucleic Acid Kit compatibility.
• Regulatory submission support: methods developed on the ZHT200 align with USP <1043> and ISO 18385 for forensic-grade nucleic acid purification.

FAQ

Does the ZHT200 support third-party extraction kits?
Yes—it is compatible with major column-based kits (e.g., QIAGEN, Thermo Fisher, Macherey-Nagel) via customizable protocol scripting and adjustable vacuum/pressure thresholds.
Can the system be validated for GMP manufacturing environments?
Yes—full IQ/OQ/PQ documentation packages, including installation checklists, operational test scripts, and performance qualification reports (e.g., recovery %, CV%, cross-contamination testing), are included.
Is remote monitoring and troubleshooting supported?
Yes—via secure TLS 1.3 encrypted connection; administrators may view live system status, download logs, and initiate diagnostic routines without physical access.
What maintenance intervals are recommended?
Daily: tip rack calibration and seal residue inspection. Quarterly: robotic arm belt tension verification and centrifuge rotor balance certification. Annually: full vacuum manifold leak testing and pressure sensor recalibration.
How is carryover contamination prevented between runs?
The system executes automated tip ejection, air-gap aspiration, and post-run UV-C irradiation (254 nm, 30 mJ/cm²) across the entire deck—validated per ISO 15223-1 Annex D for residual nucleic acid detection limits ≤1 fg/µL.