Agilent Seahorse XF HS Mini Live-Cell Metabolic Flux Analyzer

Overview

The Agilent Seahorse XF HS Mini Live-Cell Metabolic Flux Analyzer is a compact, 8-well benchtop platform engineered for real-time, label-free quantification of cellular bioenergetics in intact, living cells. It measures two fundamental parameters of energy metabolism—oxygen consumption rate (OCR) and proton efflux rate (PER), reported equivalently as extracellular acidification rate (ECAR)—alongside ATP production rate. These metrics reflect the functional output of mitochondrial oxidative phosphorylation and glycolysis, respectively, enabling system-level assessment of metabolic phenotype, mitochondrial health, cellular stress responses, and compound-induced toxicity. The instrument operates on the principle of solid-state fluorescent biosensors embedded in a disposable sensor cartridge. As OCR and PER change dynamically in the microchamber formed between the sensor probe and cell monolayer, optical sensors detect localized shifts in oxygen tension and pH with high temporal resolution. Each measurement cycle consists of a 3-minute equilibration, a 3-minute mixing phase (via integrated pneumatic actuators), and a 3-minute assay period—ensuring kinetic fidelity without perturbing cellular physiology.

Key Features

• Compact 8-well format optimized for low-cell-number experiments—requires only 1,500–25,000 cells per well, reducing biological material demand by up to 67% compared to XFp Mini plates
• High-precision OCR detection at basal and low-respiration states, validated for primary cells including naïve T lymphocytes and quiescent stem cell populations
• Integrated four-injection port system per well, enabling sequential, synchronized delivery of substrates (e.g., glucose, glutamine), inhibitors (e.g., oligomycin, FCCP, rotenone/antimycin A), or pharmacological modulators
• Automated mixing mechanism ensures homogeneous reagent distribution and reproducible transient microenvironment modulation across all wells
• Thermally regulated internal chamber maintains precise sample temperature (16–42 °C) independent of ambient conditions (4–30 °C operating range)
• Embedded Windows 10 (64-bit) controller with capacitive touchscreen interface supports full experimental setup, real-time monitoring, and on-device data visualization

Sample Compatibility & Compliance

The XF HS Mini accommodates adherent and semi-adherent mammalian cells cultured in standard 8-well XF HS Mini microplates. Suspension cells (e.g., PBMCs, hematopoietic progenitors) may be pre-coated or centrifuged to achieve stable monolayer formation prior to assay. All assays comply with GLP-aligned documentation practices; raw data files include timestamped metadata, injection logs, and environmental parameter tracking (temperature, humidity). Software-generated audit trails meet FDA 21 CFR Part 11 requirements for electronic records and signatures when deployed in regulated environments. Assay protocols align with established metabolic phenotyping frameworks referenced in ISO/IEC 17025-accredited laboratories and published methods (e.g., Nature Protocols, Cell Metabolism).

Software & Data Management

Instrument control and data acquisition are managed via XF HS Mini Control Software v2.x (Windows 10 compatible), which supports experiment scheduling, sensor calibration, and real-time waveform visualization. Raw kinetic traces are exported in .xlsx and .csv formats for downstream analysis. Seahorse Analytics—a browser-based, cloud-accessible platform—enables automated calculation of key metabolic parameters (basal respiration, ATP-linked OCR, maximal respiratory capacity, spare respiratory capacity, glycolytic rate, glycolytic capacity) using standardized algorithms. Data export supports integration with third-party statistical tools (GraphPad Prism, R, Python pandas) and LIMS systems via RESTful API. All software modules undergo annual security patching and version-controlled release cycles compliant with Agilent’s enterprise IT governance framework.

Applications

• Metabolic phenotyping of primary immune cells, iPSC-derived neurons, and patient-derived tumor organoids under normoxic/hypoxic conditions
• Toxicity screening of small-molecule libraries targeting mitochondrial complexes or glycolytic enzymes
• Functional validation of CRISPR/Cas9-edited metabolic gene knockouts or overexpression models
• Immunometabolism studies assessing T-cell activation, macrophage polarization, or NK cell cytotoxicity
• Preclinical evaluation of metabolic modulators in 2D co-culture systems modeling tumor–stroma interactions
• Bioprocess development for cell therapy manufacturing, including metabolic stability assessment across passage numbers

FAQ

What cell types are compatible with the XF HS Mini platform?

Adherent lines (e.g., HEK293, HeLa, MCF-7), primary fibroblasts, endothelial cells, and differentiated stem cells are routinely used. Suspension cells require adherence optimization—e.g., poly-D-lysine coating or brief centrifugation—to ensure uniform monolayer formation.
How does the XF HS Mini differ from the XFp Analyzer in terms of sensitivity?

The XF HS Mini achieves comparable OCR detection limits (≤0.5 pmol/min) using one-third the cell number required by XFp Mini plates, due to enhanced microchamber geometry and improved sensor signal-to-noise ratio.
Is the instrument compatible with sterile tissue culture workflows?

Yes—the sensor cartridge and microplates are gamma-irradiated and certified endotoxin-free. The instrument housing features smooth, non-porous surfaces suitable for routine ethanol wipe-downs between runs.
Can data be exported for regulatory submission?

Yes. Raw data files (.wdf), processed reports (.pdf), and audit trail logs (.xml) are generated in formats compliant with FDA eCTD specifications and support ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).