In the fast-paced world of cell biology, precision and efficiency are no longer luxuries—they’re necessities. Whether you’re optimizing bioproduction processes, validating cell-based assays, or running high-throughput screens, accurate and reproducible cell counting is a critical upstream variable. Enter the LUNA-FX7™, Logos Biosystems’ flagship automated cell counter, engineered for laboratories that demand both high performance and high throughput. With its combination of cutting-edge optics, intelligent software, and robust throughput capabilities, the LUNA-FX7™ is redefining expectations in automated cell analysis.
Meeting the Modern Cell Counting Challenge
Manual hemocytometry has been the standard for decades, but its limitations are widely recognized: it’s slow, subjective, and error-prone. Traditional image-based counters improved accuracy and reproducibility but often fall short when it comes to scalability, data integration, or handling complex workflows.
The LUNA-FX7™ solves all of these pain points by combining Logos Biosystems’ core strength in optics and image analysis with innovations in automation, data traceability, and performance monitoring. It is not simply a cell counter—it’s a complete platform for data-rich, high-throughput cell analysis.
Engineered for Accuracy
At the heart of the LUNA-FX7™ is an advanced optical engine featuring a high-resolution 5MP CMOS camera and precision-aligned LED illumination. This results in sharp, high-contrast images that allow for highly accurate cell detection, even in difficult samples such as irregularly shaped cells, clumpy populations, or samples with debris.
Its dual fluorescence and brightfield detection capabilities give the LUNA-FX7™ unparalleled versatility. It can differentiate live from dead cells using stains like trypan blue or fluorescence viability dyes, and it’s also capable of nuclear staining-based counting for high-sensitivity applications like primary cells or stem cells.
Moreover, Logos’ proprietary CountWire™ algorithm intelligently adapts to a wide variety of cell types, sizes, and staining conditions. Whether you’re working with CHO cells, PBMCs, iPSCs, or hybridomas, the LUNA-FX7™ delivers consistently accurate and reproducible data.
High Throughput Without Compromise
One of the defining features of the LUNA-FX7™ is its ability to process up to 8 samples at once, using its integrated slide autoloader. This is a significant leap forward for labs processing dozens or hundreds of samples daily, such as core facilities, biomanufacturing QC labs, or academic screening centers.
Each sample is analyzed in under 30 seconds, and the system is fully automated—from slide loading and focusing to analysis and report generation. The result? Throughput that rivals flow cytometry in speed, but without the need for complex sample preparation or operator expertise.
Additionally, the system features an intuitive touchscreen interface, barcode compatibility for sample tracking, and automated data export functions. This makes it a seamless fit for 21 CFR Part 11-compliant workflows or GMP/GLP environments, where traceability and audit trails are essential.
Built-In Quality Control and Performance Tracking
The LUNA-FX7™ is more than a counting device—it’s a self-monitoring analytical instrument. It includes a Quality Control (QC) tracking module that records performance over time, ensuring that every count meets defined accuracy and precision standards. Built-in calibration tools and diagnostics help minimize drift and alert users to potential performance issues before they compromise data quality.
These features are especially critical in regulated environments, where instrument validation and ongoing performance monitoring are required components of SOP compliance.
Designed for Flexibility
Unlike many automated counters that lock users into proprietary consumables, the LUNA-FX7™ supports both Logos Biosystems’ reusable precision slides and disposable slides, giving users the flexibility to choose based on throughput, cost, or contamination risk.
It also supports both brightfield (e.g., trypan blue) and fluorescence-based assays, enabling users to switch between quick viability counts and more nuanced fluorescence-based applications with ease.
Use cases include:
- Bioproduction: Cell counting and viability monitoring in CHO and HEK cell cultures
- Cell Therapy: Accurate enumeration of viable cells in preparation for downstream expansion or cryopreservation
- Stem Cell Research: Tracking of nuclear-stained human iPSCs or ESCs
- Primary Cell Isolation: Enumeration of immune cell populations using fluorescence markers
- Toxicology Screens: Dose-response viability profiling in fluorescence-based assays
Integrated Data Management
The LUNA-FX7™ makes data integrity effortless. The system can be networked for centralized data storage, features USB and LAN ports for data export, and generates full PDF and CSV reports for easy sharing and archiving. The software includes user account management, electronic signatures, and customizable audit logs to help labs meet regulatory requirements.
Results are not just numbers—they’re fully annotated, image-supported datasets that can be reviewed, archived, or re-analyzed. This kind of transparency is invaluable in both academic and industrial settings, where reproducibility is under increasing scrutiny.
A New Standard in Confidence
The power of the LUNA-FX7™ lies not only in its technical capabilities, but in the confidence it provides researchers. Knowing that each count is accurate, reproducible, and fully traceable frees scientists to focus on interpretation and decision-making rather than troubleshooting or repeat measurements.
Logos Biosystems backs the LUNA-FX7™ with robust documentation, validation tools, and responsive technical support—key considerations for labs operating under tight timelines or regulatory pressures.
Testimonials from the Field
Many researchers have noted dramatic improvements in both efficiency and data quality after implementing the LUNA-FX7™. A biotechnology company using it for CHO cell density tracking prior to protein harvest reported a 50% reduction in operator time and a measurable improvement in batch consistency. An academic core facility praised its ease of use and throughput, enabling them to support over a dozen labs with a single instrument.
Conclusion: The Future of Automated Cell Counting
As cellular research becomes increasingly data-driven and standardized, tools like the LUNA-FX7™ will be central to unlocking biological insight at scale. It combines the accuracy and intelligence of next-gen imaging with the speed and robustness needed for demanding lab environments.
Whether you’re running a regulated bioproduction facility or a high-throughput academic lab, the LUNA-FX7™ offers a compelling solution to a universal challenge: reliable, rapid, and regulatory-ready cell analysis.