Agilent NovoCyte Quanteon Flow Cytometer

Overview

The Agilent NovoCyte Quanteon Flow Cytometer is a high-performance, analytical flow cytometry platform engineered for demanding multicolor immunophenotyping, rare-event detection, and submicron particle analysis in academic, pharmaceutical, and biotechnology research laboratories. Built upon a dual-detection architecture combining optimized forward/side scatter optics with proprietary silicon photomultiplier (SiPM) technology, the Quanteon delivers exceptional sensitivity, stability, and dynamic range—spanning 7.2 decades (10⁷.²) without hardware gain adjustment. Unlike conventional photomultiplier tubes (PMTs), SiPMs are solid-state semiconductor detectors composed of densely packed, independently operating avalanche photodiodes (APDs), enabling true photon-counting capability at single-photon resolution. This architecture eliminates voltage-dependent nonlinearity and gain drift, ensuring consistent fluorescence quantification across weak and bright signals within the same acquisition—critical for complex panel design and longitudinal studies requiring inter-run comparability.

Key Features

• Four independently aligned lasers (typically 405 nm, 488 nm, 561 nm, and 640 nm) supporting simultaneous excitation of spectrally diverse fluorochromes
• 25 dedicated SiPM-based fluorescence detection channels with individually configurable optical filters and dichroics
• Submicron scatter resolution: optimized fluidic and optical design enables reliable discrimination of particles as small as 0.1 µm—including platelets, extracellular vesicles, bacteria, and synthetic nanocarriers
• Volumetric absolute cell counting without calibration beads: integrated precision syringe pump and real-time flow rate monitoring eliminate reliance on expensive reference microspheres
• Robust hydrodynamic focusing system featuring peristaltic-free fluidics: eliminates pulsatile flow artifacts, delivering CVs <2% for bead-based calibration and <3% for biological samples over extended run durations
• Automated daily startup, cleaning, and shutdown protocols reduce hands-on time and operator variability

Sample Compatibility & Compliance

The NovoCyte Quanteon accommodates a broad range of sample formats including single-cell suspensions (e.g., PBMCs, dissociated tissues), whole blood (with lysing reagents), microbial cultures, and engineered nanoparticles. It supports standard 12×75 mm tubes, 96-well and 384-well microplates (with optional barcode scanning), and integrates seamlessly with third-party liquid handlers via RESTful API. The instrument complies with IEC 61010-1:2010 for electrical safety and IEC 61326-1:2013 for electromagnetic compatibility. While designed strictly for research use (RUO), its data integrity framework—including audit-trail-enabled software logging, user-access controls, and exportable FCS 3.1/3.2-compliant files—supports alignment with GLP and early-stage GMP workflows. It is not intended for clinical diagnostics or FDA-regulated applications.

Software & Data Management

NovoExpress software (v4.x or later) provides an intuitive, workflow-driven interface compatible with Windows 10/11. Key capabilities include automated compensation matrix calculation using single-stained controls, batch processing of multi-file acquisitions, built-in cell cycle (Dean-Jett-Fox) and proliferation (CFSE/Peakfit) analysis modules, hierarchical gating trees with Boolean logic, and publication-ready heatmap generation. All compensation matrices, gating strategies, and analysis templates are versioned and exportable. Raw data is stored in industry-standard FCS format; processed results can be exported to CSV, Excel, or PDF. Software logs all user actions—including parameter changes, gate edits, and file exports—with timestamps and operator IDs, satisfying basic ALCOA+ principles for traceability in regulated research environments.

Applications

• High-parameter immune profiling (≥20-color panels) in human and murine models
• Rare-event detection: circulating tumor cells (CTCs), minimal residual disease (MRD), and antigen-specific T/B cell subsets
• Extracellular vesicle (EV) characterization by size, surface marker expression, and cargo loading
• Microbial community analysis: viability assessment, membrane potential, and functional staining in mixed cultures
• Stem cell differentiation kinetics and pluripotency marker co-expression analysis
• Quality control of CAR-T and other advanced therapy medicinal products (ATMPs) during manufacturing

FAQ

Is the NovoCyte Quanteon approved for clinical diagnostics?
No. The NovoCyte Quanteon is designated for research use only (RUO) and is not cleared or approved by the FDA, CE-IVD, or any other regulatory authority for diagnostic procedures.
Does the instrument require daily calibration with fluorescent beads?
No. Volumetric absolute counting is performed using internal flow-rate calibration; however, performance verification (e.g., sensitivity, linearity, and CV checks) should be conducted periodically using standardized calibration particles per laboratory SOPs.
Can NovoExpress software comply with 21 CFR Part 11 requirements?
NovoExpress supports core elements such as electronic signatures, audit trails, and role-based access control—but full 21 CFR Part 11 compliance requires site-specific validation, documented procedures, and administrative controls beyond the software’s out-of-the-box functionality.
What sample volume minimum is supported for tube-based acquisition?
As low as 20 µL with the NovoSampler Q autosampler; manual tube loading requires ≥50 µL for stable hydrodynamic focusing.
Is laser alignment user-serviceable?
No. Optical alignment is factory-performed and locked; routine maintenance is limited to fluidic line replacement, nozzle cleaning, and daily wash cycles executed via the onboard protocol manager.