Agilent NovoCyte Penteon Flow Cytometer

Overview

The Agilent NovoCyte Penteon Flow Cytometer is a high-parameter research-grade flow cytometry platform engineered for precision multiparametric analysis of heterogeneous cell populations. It operates on the principle of hydrodynamic focusing combined with multi-laser excitation and parallel fluorescence detection using silicon photomultiplier (SiPM) technology. Unlike traditional photomultiplier tubes (PMTs), SiPM detectors deliver photon-counting capability with a dynamic range exceeding 7.2 decades—enabling quantitative detection across orders of magnitude in fluorescence intensity without gain adjustment. The system integrates five independently aligned lasers (UV/355 nm, violet/405 nm, blue/488 nm, yellow/561 nm, red/640 nm) and up to 30 spectrally resolved fluorescence detection channels, supporting complex panel designs for deep immunophenotyping, signaling pathway analysis, and rare-event detection. Its optical architecture is optimized for low-noise scatter signal acquisition, achieving reliable discrimination of submicron particles down to 0.1 µm—critical for platelet enumeration, bacterial characterization, and extracellular vesicle analysis.

Key Features

• Five-laser excitation platform with precise spectral separation and minimal cross-talk between detection channels
• 30-channel fluorescence detection using solid-state SiPM detectors—each calibrated for linear response and low background noise
• High-fidelity forward and side scatter optics enabling resolution of particles as small as 0.1 µm
• Integrated Agilent NovoSampler Q autosampler compatible with flow cytometry tubes, 1.5 mL EP tubes (40-position rack), and microplates (24-, 48-, 96-, and 384-well formats)
• Stable fluidic architecture utilizing non-pulsatile peristaltic-free pressure-driven sample delivery—ensuring reproducible volumetric acquisition and absolute cell counting accuracy
• Modular optical design allowing field-upgradable laser and detector configurations without system recalibration

Sample Compatibility & Compliance

The NovoCyte Penteon accommodates a broad range of biological samples including whole blood, PBMCs, dissociated tissues, cultured mammalian cells, bacteria, yeast, and synthetic microparticles. Its compatibility extends to fixation-permeabilization protocols required for intracellular phosphoprotein detection—including methanol-based permeabilization following paraformaldehyde fixation—supporting standardized workflows aligned with common immunostaining guidelines. While intended solely for research use (RUO), the instrument’s hardware and software architecture are designed to support compliance with laboratory quality frameworks. Data acquisition and processing adhere to ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available), and NovoExpress software supports audit trail logging, user access controls, and electronic signature functionality—facilitating alignment with GLP and GMP-aligned internal SOPs. It is not validated for clinical diagnostics or FDA 510(k)/CE-IVD purposes.

Software & Data Management

Agilent NovoExpress v4.x serves as the unified software interface for instrument control, real-time data acquisition, offline analysis, and report generation. Its modular workflow engine supports both guided and expert-mode operation, with built-in templates for apoptosis, cell cycle, proliferation (CFSE dilution), cytokine bead array (CBA), and phosphoflow assays. All analyses retain full parameter metadata—including laser power, PMT/SiPM voltage, compensation matrix, and gating hierarchy—for traceable reanalysis. Raw FCS 3.1 files are generated with embedded instrument configuration logs. Data export options include CSV, PDF, and image formats (TIFF, PNG), while batch processing enables high-throughput analysis across multi-sample experiments. The software supports integration with third-party platforms via open API endpoints and conforms to MIAME-compliant annotation standards for publication-ready data submission.

Applications

• Apoptosis profiling: Quantitative assessment of Annexin V/PI, Caspase-3 activation, and mitochondrial membrane potential loss across heterogeneous populations
• Immunophenotyping: Simultaneous identification and frequency determination of T-cell subsets (CD4+/CD8+/regulatory), B-cell maturation stages, NK cell activation markers, and monocyte polarization states
• Cell proliferation kinetics: CFSE and CellTrace Violet dilution tracking with automated division indexing and MFI decay modeling
• Intracellular signaling analysis: Phospho-specific staining (e.g., p-ERK, p-STAT5) under optimized fixation/permeabilization conditions validated for >85% of commercially available phospho-antibodies
• Cytokine secretion profiling: Multiplexed detection using bead-based immunoassays (e.g., BD CBA, BioLegend LEGENDplex) with single-sample quantification of up to 15 analytes
• Cell cycle staging: DNA content analysis with Hoechst 33342 or DAPI, coupled with proliferation marker co-staining (e.g., Ki-67) for G0/G1 vs. active cycling discrimination

FAQ

Is the NovoCyte Penteon compliant with FDA 21 CFR Part 11?
NovoExpress software includes features that support Part 11 readiness—including electronic signatures, audit trails, and role-based access—but formal validation for regulated environments requires site-specific implementation and documentation per organizational SOPs.
Can I upgrade from a 3-laser to a 5-laser configuration post-purchase?
Yes—the optical module is modular; laser additions require factory service and firmware update but do not necessitate full system recalibration.
What is the minimum particle size resolvable by the scatter detectors?
The optimized scatter optics and low-noise electronics enable consistent detection and discrimination of particles ≥0.1 µm, verified using NIST-traceable silica and polystyrene standards.
Does the system support spectral unmixing?
NovoExpress v4.x includes a spectral library builder and unmixing algorithm compatible with custom fluorochrome spectra acquired on the Penteon platform.
Is remote monitoring or control supported?
Instrument status and queue management are accessible via secure HTTPS web interface; full remote acquisition requires local network configuration and IT-administered firewall exceptions.