Junyi JY-Mini-P4 Quad-Plate Vertical Protein Electrophoresis Tank

Overview

The Junyi JY-Mini-P4 Quad-Plate Vertical Protein Electrophoresis Tank is an engineered solution for high-efficiency, reproducible SDS-PAGE and native PAGE applications in molecular biology and proteomics laboratories. Designed around the fundamental principles of vertical slab electrophoresis—where charged biomolecules migrate through a polyacrylamide matrix under a controlled electric field—the JY-Mini-P4 supports simultaneous processing of up to four gels within a single, compact unit. Its architecture adheres to standardized gel geometry (81 × 73 mm active separation area), ensuring compatibility with widely adopted protocols, staining workflows, and imaging systems. The system operates on constant voltage or current modes (user-configurable via external power supply), enabling precise control over electrophoretic mobility and resolution—critical for comparative protein analysis, purity assessment, and post-translational modification studies.

Key Features

• Quad-gel capacity with independent alignment slots—enables parallel electrophoresis of up to four 1.0 mm thick gels (or mixed thicknesses: 0.75 mm / 1.5 mm optional), maximizing throughput without cross-contamination.
• High-transparency, injection-molded polycarbonate tank body—resistant to thermal stress (up to 60°C), chemical corrosion (including SDS, acrylamide, and common buffer systems), and mechanical impact—ensuring long-term dimensional stability and optical clarity for real-time gel monitoring.
• In-situ gel casting system—eliminates conventional sealing tape or agarose sealants; glass plates lock directly into precision-machined grooves, allowing uniform polymerization and immediate transition from casting to electrophoresis without plate repositioning.
• Optimized electrode assembly—platinum wire anode protected by a removable conductive shield that suppresses bubble formation at the interface, ensures uniform current distribution across the gel width, and extends electrode service life.
• Integrated safety interlock—electrical circuit automatically de-energizes upon lid removal, complying with IEC 61010-1 requirements for laboratory electrical equipment safety.
• Ergonomic lever-based clamping mechanism—reduces hand fatigue during repeated assembly/disassembly cycles and guarantees consistent pressure distribution across all four gel sandwiches.

Sample Compatibility & Compliance

The JY-Mini-P4 accommodates standard vertical electrophoresis formats used in academic, clinical, and industrial labs—including denatured and non-denatured protein samples, glycoproteins, and nucleic acids (e.g., dsDNA fragments < 1 kb). Its gel dimensions and comb configurations align with ISO 13485-aligned manufacturing practices for research-use-only (RUO) instrumentation. While not certified for diagnostic use, the system supports GLP-compliant documentation when paired with validated power supplies and staining protocols. It is compatible with common running buffers (Tris-Glycine, Tris-Tricine, Bis-Tris MES) and widely adopted detection methods (Coomassie, silver stain, fluorescent dyes, Western blot transfer). Glass plate dimensions (101 × 82 mm long / 101 × 73 mm short) conform to Bio-Rad Mini-PROTEAN® specifications, enabling seamless integration with commercial precast gels and accessories.

Software & Data Management

As a standalone electrophoresis apparatus, the JY-Mini-P4 does not include embedded firmware or proprietary software. It functions as a passive, hardware-only platform requiring external DC power supplies (e.g., Bio-Rad PowerPac Basic, Thermo Fisher Owl E1000) with adjustable voltage/current limits and timer functionality. Users retain full control over run parameters and may log experimental conditions manually or via LIMS-integrated power supply interfaces supporting RS-232/USB output. For auditability, laboratories routinely pair the system with electronic lab notebooks (ELNs) compliant with 21 CFR Part 11 when documenting gel preparation, loading, and run metadata.

Applications

• SDS-PAGE for protein molecular weight estimation and purity verification in recombinant expression workflows.
• Two-dimensional electrophoresis (2-DE) first-dimension compatibility—when used with IPG strips and horizontal focusing units.
• Native PAGE analysis of multi-subunit complexes, enzyme activity gels (zymograms), and conformational stability assays.
• Nucleic acid separation—particularly useful for small RNA (< 200 nt) and oligonucleotide ladder resolution.
• Preparative electrophoresis—extraction of resolved bands for downstream MS analysis or functional reconstitution.
• Teaching laboratories—robust design and intuitive operation support hands-on training in core electrophoretic theory and technique.

FAQ

Is the JY-Mini-P4 compatible with precast gels from major vendors?

Yes—it accepts standard mini-gel formats (8.1 × 7.3 cm) and fits Bio-Rad, Thermo Fisher, and Cytiva precast gels using the same glass plate dimensions and buffer chamber geometry.
What power supply specifications are recommended for optimal performance?

A programmable DC power supply capable of 10–300 V and 10–400 mA output is advised; typical SDS-PAGE runs employ 120–200 V constant voltage for 45–90 minutes.
Can the tank be autoclaved?

No—the polycarbonate housing and platinum electrodes are not autoclavable; cleaning is performed with 70% ethanol or mild detergent followed by distilled water rinse and air drying.
Does the system support gradient gels?

Yes—its uniform buffer circulation and stable plate alignment allow reliable casting and electrophoresis of discontinuous and linear acrylamide gradients (e.g., 4–20%, 8–16%).
Are replacement parts such as combs or glass plates available separately?

Yes—Junyi offers OEM-compatible combs (11-, 15-, and 20-well), glass plates (long/short), and spacer sets (0.75/1.0/1.5 mm) through authorized distributors.