Harvard Apparatus BTX Specialized Electroporation Electrodes
| Brand | Harvard Apparatus |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | BTX Specialized Electroporation Electrodes |
| Pricing | Upon Request |
Overview
The Harvard Apparatus BTX Specialized Electroporation Electrodes are a modular, application-optimized electrode system engineered for precise, reproducible electroporation across diverse cell types and experimental configurations. Designed to interface seamlessly with BTX electroporators—including the ECM630, ECM830, ECM2001, and ECM399—these electrodes implement the fundamental principle of transient membrane permeabilization via controlled high-voltage electric field pulses. By applying defined DC or AC waveforms (with pulse durations spanning microseconds to seconds), they induce reversible pore formation in lipid bilayers, enabling efficient intracellular delivery of nucleic acids, proteins, small molecules, or therapeutic agents. Each electrode variant addresses distinct biophysical constraints: sample volume, cell adhesion status, field homogeneity, and required electric field strength (E = V/d). This system supports both suspension-based and adherent-cell workflows under standardized, traceable conditions suitable for preclinical research, process development, and GLP-aligned transfection studies.
Key Features
- Three purpose-built electrode architectures: Flatpack Chambers (for high-field-strength bacterial/yeast transformation and stem cell transfection), 100 mm Petri Dish Electrodes (for scalable adherent-cell electroporation), and 35 mm Petri Dish Electrodes (for low-volume, high-precision delivery in miniaturized cultures).
- Flatpack Chambers constructed from medical-grade stainless steel and polyester film, forming a sterile, laminar-flow-compatible three-layer sandwich chamber; γ-irradiated and individually packaged (50 units per kit); compatible with BTX Safety Operating Chambers.
- Petri Dish Electrodes feature reusable stainless-steel parallel-plate or 13-channel gold-plated electrode arrays; designed for integration directly into standard tissue-culture-grade Petri dishes (100 mm or 35 mm diameter), eliminating cross-contamination risk from disposable cuvettes.
- Electrode-specific electrical specifications: Flatpack supports up to 3000 V DC / 250 V AC (1 MHz), 10 µs–10 s pulses; 100 mm dish electrodes operate at up to 2000 V DC, 10 µs–10 ms pulses; 35 mm electrodes deliver fine-grained control at ≤300 V DC, with sub-microsecond resolution (1 µs–35 ms) and 2 mm inter-electrode spacing.
- All electrodes enable full parameter programmability—including voltage, pulse duration, number of pulses (1–99), and waveform type—via native BTX instrument firmware, ensuring protocol repeatability and audit-ready execution logs.
Sample Compatibility & Compliance
These electrodes accommodate a broad spectrum of biological samples: prokaryotic cells (E. coli, Bacillus), eukaryotic microbes (S. cerevisiae), mammalian adherent lines (HEK293, HeLa, primary fibroblasts), suspension cells (CHO, Jurkat), stem cells (iPSCs, MSCs), plant protoplasts, and ex vivo tissue explants. Flatpack chambers excel in low-volume (≤100 µL), high-field applications (up to 40 kV/cm), while Petri dish formats support volumes from 0.5 mL to 10 mL with uniform field distribution. All components comply with ISO 13485–aligned manufacturing controls for laboratory instrumentation. Sterility assurance for Flatpacks follows ISO 11137 (γ-irradiation validation). Reusable electrodes meet USP guidelines for analytical instrument qualification when implemented within documented SOPs.
Software & Data Management
Electrode operation is fully integrated into BTX’s proprietary electroporation software suite, supporting method storage, version-controlled protocol libraries, and real-time parameter monitoring. When paired with instruments compliant with FDA 21 CFR Part 11 (e.g., ECM830 with optional audit trail module), the system delivers electronic records with user authentication, timestamped event logging, and immutable parameter history—critical for regulatory submissions and internal quality audits. Data export is supported in CSV and XML formats for downstream analysis in MATLAB, Python (SciPy), or LIMS platforms.
Applications
- High-efficiency plasmid DNA and siRNA transfection in hard-to-transfect primary and stem cells.
- CRISPR-Cas9 RNP delivery for precision genome editing without viral vectors.
- Electrofusion of hybridoma cells for monoclonal antibody production.
- Delivery of fluorescent dyes, calcium indicators, or cytotoxic drugs in mechanistic pharmacology assays.
- Plant protoplast transformation and yeast genome engineering workflows.
- Preclinical evaluation of electrochemotherapy protocols using ex vivo tumor models.
FAQ
Are Flatpack Chambers compatible with all BTX electroporators?
Yes—Flatpack Chambers are validated for use with ECM630, ECM830, and ECM2001 systems. Their mechanical design ensures secure placement within the BTX Safety Operating Chamber.
Can Petri dish electrodes be autoclaved?
No—autoclaving is not recommended due to thermal stress on conductive coatings and polymer components. Sterilization is achieved via 70% ethanol immersion, acetone wipe-down, or UV irradiation (254 nm, 30 min), per BTX technical note TN-EP-02.
What is the maximum recommended field strength for 35 mm Petri dish electrodes?
With a fixed 2 mm electrode gap and 300 V DC limit, the theoretical maximum field strength is 150 V/cm—optimized for sensitive adherent cultures where excessive field intensity compromises viability.
Do these electrodes require calibration before first use?
No routine calibration is required; however, users must verify electrode integrity (continuity and insulation resistance >100 MΩ) using a multimeter prior to each experiment, as outlined in BTX Application Guide AG-EP-05.
