Sartorius Incucyte® SX1 Live-Cell Analysis System

Overview

The Sartorius Incucyte® SX1 Live-Cell Analysis System is a compact, integrated high-content imaging platform engineered for longitudinal, label-free and fluorescence-based monitoring of mammalian cells inside standard CO₂ incubators. Utilizing a motorized, non-invasive mobile optical system with fixed-focus HD phase-contrast and dual-channel fluorescence imaging capabilities, the SX1 captures time-lapse image sequences without disturbing culture conditions—eliminating the need to remove samples from controlled environments. Its core measurement principle relies on quantitative image cytometry: pixel-intensity-based segmentation algorithms identify and track individual cells or subcellular structures across time, enabling kinetic quantification of proliferation, confluence, migration, apoptosis, cytotoxicity, spheroid growth, and immune-mediated killing events. Designed specifically for small- to mid-scale academic labs and QC-focused bioproduction units, the SX1 delivers incubator-resident phenotypic analysis with reproducible spatial resolution (≤1.5 µm/pixel at 10× objective) and temporal fidelity down to 5-minute intervals.

Key Features

• Incubator-integrated imaging architecture: Fully compatible with standard 37°C/5% CO₂ humidified incubators; no external staging or environmental compromise required.
• Modular tray system: Interchangeable carriers accommodate T-flasks (25–175 cm²), Petri dishes (35–150 mm), and multiwell plates (6–384-well), enabling seamless transition from cell banking to assay execution.
• Dual-mode acquisition: Simultaneous or sequential HD phase-contrast and fluorescence imaging (GFP/mCherry filter sets standard; optional Cy5/TRITC upgrade available).
• Automated focus maintenance: Proprietary auto-focus algorithm recalibrates z-position per well or vessel prior to each acquisition cycle, ensuring consistent focal plane retention over days or weeks.
• Remote experiment control & monitoring: Web-based interface supports secure access via institutional networks; users configure schedules, monitor run status, and receive email alerts upon completion or error detection.
• On-instrument data buffering: Internal SSD stores raw image stacks locally during acquisition, minimizing network dependency and supporting offline analysis initiation.

Sample Compatibility & Compliance

The Incucyte® SX1 accommodates standard tissue-culture-treated plasticware compliant with ISO 5–8 cleanroom manufacturing standards. It supports live-cell assays using FDA-registered reagents (e.g., Incucyte® Annexin V, Caspase-3/7, pHrodo™ dyes) and third-party fluorescent probes validated under GLP-aligned protocols. Image metadata—including timestamp, environmental log (temperature/humidity/CO₂), objective ID, exposure settings, and user-defined annotations—is embedded in every TIFF file per MIAME and FAIR data principles. The system meets essential requirements for audit readiness under 21 CFR Part 11 when deployed with Sartorius’ validated software configuration (Incucyte® Software v2023.1+), including electronic signatures, audit trails, and role-based access control.

Software & Data Management

Incucyte® Software provides an end-to-end analytical workflow—from acquisition scheduling and batch processing to kinetic curve fitting and publication-ready visualization. Built-in algorithms perform confluence masking, object counting, intensity quantification, and morphometric analysis (area, perimeter, circularity, texture). All measurements are exportable as CSV or Excel files; time-series plots support customizable normalization (e.g., t=0 baseline, vehicle control), statistical overlays (SEM, SD), and multi-experiment comparison. Data integrity is reinforced through automated versioning, checksum validation, and optional integration with LIMS via RESTful API. Raw image archives comply with DICOM Supplement 145 (Digital Imaging and Communications in Medicine) for long-term repository ingestion.

Applications

• Cell culture quality assurance: Real-time monitoring of mycoplasma-free passage consistency, doubling time stability, and morphology drift across seed train expansions.
• Tumor spheroid dynamics: Quantitative tracking of 3D growth kinetics, necrotic core formation, and immune cell infiltration in co-culture models (e.g., PBMC–tumor spheroid assays).
• Immunooncology profiling: Time-resolved assessment of CAR-T or NK-cell cytotoxicity via caspase activation or membrane integrity loss markers.
• Neurite outgrowth & synaptogenesis: Automated tracing and branching analysis in primary neuronal cultures under pharmacological modulation.
• Stem cell differentiation: Confluence-coupled marker expression kinetics using lineage-specific fluorescent reporters (e.g., SOX2-GFP, TUJ1-mCherry).

FAQ

Can the Incucyte® SX1 be used outside a CO₂ incubator?
Yes—while optimized for incubator-based operation, the SX1 can function in ambient lab environments using optional environmental enclosures that regulate humidity and temperature.
Does the system require regular calibration by service engineers?
No routine hardware calibration is needed; optical performance is factory-validated and tracked via daily self-test routines embedded in firmware.
Is cloud-based data storage supported?
Local storage is primary; optional Sartorius Cloud Connect enables encrypted, GDPR-compliant upload of processed metrics (not raw images) for cross-site collaboration.
How does the SX1 handle focus drift during long-term acquisitions?
The system executes per-vessel autofocus before every imaging cycle using contrast-based algorithms, eliminating manual refocusing and maintaining sub-micron z-stability over 14+ days.
Are custom analysis modules available for proprietary assays?
Yes—Sartorius offers Professional Services for developing and validating custom segmentation and measurement pipelines under GxP-aligned development documentation.