Mobius® CellReady 3L Single-Use Bioreactor
| Brand | Merck |
|---|---|
| Origin | USA |
| Manufacturer | Merck KGaA, Darmstadt, Germany |
| Product Line | Mobius® CellReady |
| Vessel Volume | 3 L (working volume) |
| Configuration | Benchtop Stirred-Tank Bioreactor |
| Sterility | Pre-sterilized, Gamma-Irradiated |
| Material | USP Class VI–compliant Polymeric Film (Multi-layer EVOH barrier) |
| Controller Compatibility | Compatible with standard Mobius® controllers (e.g., Mobius® Control Unit, or third-party PID-based bioreactor controllers via analog/digital I/O) |
| Regulatory Support | Designed for use in process development under GMP-aligned workflows |
Overview
The Mobius® CellReady 3L Single-Use Bioreactor is an engineered benchtop stirred-tank system designed specifically for mammalian cell culture process development and optimization. Operating on the principle of controlled impeller-driven mixing within a pre-sterilized, disposable polymeric vessel, it delivers hydrodynamic conditions comparable to reusable glass or stainless-steel bioreactors—while eliminating cleaning, sterilization, and validation burdens. Its design integrates proven scale-down fluid dynamics (including Rushton turbine or pitched-blade impeller configurations), gas sparging via integrated bottom sparger or overlay, and real-time monitoring of key parameters including dissolved oxygen (DO), pH, temperature, and agitation speed. The system is validated for use across early-stage process characterization, clone selection, media screening, and fed-batch protocol refinement—serving as a bridge between shake flask studies and larger-scale production bioreactors.
Key Features
- Pre-assembled, gamma-irradiated 3 L single-use vessel with integrated sensors (pH, DO, temperature) and sterile connectors—ready for immediate installation and operation.
- Benchtop footprint with modular mounting options compatible with standard Mobius® control units or third-party bioreactor controllers supporting 4–20 mA or 0–10 V analog inputs/outputs.
- USP Class VI–certified multi-layer film construction featuring ethylene vinyl alcohol (EVOH) oxygen barrier layer, ensuring low O2 and CO2 permeability critical for sensitive CHO and HEK293 cultures.
- Reproducible mixing performance validated against ISO 20957-2 (bioreactor mixing time standards) and aligned with scale-up correlations from 10 L to 2000 L stainless-steel systems.
- No dedicated hardware investment required: leverages existing controller infrastructure, reducing capital expenditure and operational complexity during technology transfer.
- Reduced turnaround time between batches—typically <2 hours from harvest to next inoculation—enabling high-throughput experimental design (DoE) and rapid iteration cycles.
Sample Compatibility & Compliance
The Mobius® CellReady 3L system is qualified for suspension-adapted mammalian cell lines including CHO-K1, CHO-S, SP2/0, and HEK293. It supports both batch and fed-batch modes with integrated feed ports and antifoam dosing capability. All wetted materials comply with USP and cytotoxicity and systemic toxicity testing. The vessel and tubing sets are supplied with full traceability documentation—including CoA, CoC, and extractables data per USP and . The system architecture supports alignment with FDA 21 CFR Part 11 requirements when paired with compliant controller software (e.g., Merck’s Bio4C™ Suite), including electronic signatures, audit trails, and role-based access control.
Software & Data Management
While the Mobius® CellReady 3L vessel itself is hardware-only, its integration with Merck’s Bio4C™ Process Analytics software enables automated data acquisition, trend analysis, and export to CSV, Excel, or OPC UA-compatible platforms. The controller interface supports configurable alarm thresholds, setpoint ramping, and cascade control loops (e.g., DO cascade to agitation or O2 sparge). Raw sensor data is timestamped with millisecond resolution and stored locally with optional cloud backup. All data files include embedded metadata (vessel lot number, calibration dates, operator ID), facilitating compliance with ALCOA+ principles for GxP environments.
Applications
- Cell line selection and stability assessment under controlled bioreactor conditions.
- Media and feed optimization using Design of Experiments (DoE) approaches.
- Process parameter sensitivity analysis (e.g., pH shift effects, temperature ramps, agitation impact on viability).
- Scale-down model qualification for comparability studies supporting regulatory filings (e.g., BLA supplements).
- Training platform for operators transitioning from stainless-steel to single-use manufacturing paradigms.
- Supporting Quality by Design (QbD) initiatives through consistent, reproducible small-scale experimentation.
FAQ
Is the Mobius® CellReady 3L vessel compatible with non-Merck bioreactor controllers?
Yes—its analog I/O interface (4–20 mA for sensors, 0–10 V for actuators) allows integration with most industrial PID controllers meeting IEC 61000-4 EMC standards.
Can the vessel be used for perfusion culture?
Not natively—the 3L configuration lacks integrated hollow-fiber or tangential flow filtration modules; however, external perfusion systems may be connected via sterile quick-connectors.
What is the maximum recommended operating pressure for the vessel?
The vessel is rated for ≤0.3 bar(g) headspace pressure during operation, consistent with typical mammalian cell culture requirements.
Are calibration certificates provided with each vessel lot?
Yes—each lot includes pH and DO sensor calibration reports traceable to NIST standards, along with film extractables summaries.
Does Merck offer IQ/OQ protocols for this system?
Standard IQ/OQ templates are available upon request and are structured to align with ASTM E2500 and Annex 15 guidelines for single-use systems.
