Clix XinBLot Fit Semi-Dry Electrophoretic Transfer System

Overview

The Clix XinBLot Fit is a benchtop semi-dry electrophoretic transfer system engineered for precise, reproducible protein or nucleic acid transfer from polyacrylamide or agarose gels to solid supports—including nitrocellulose, PVDF, and nylon membranes. Unlike traditional wet-tank systems, the XinBLot Fit employs a semi-dry configuration in which the gel-membrane sandwich is placed directly between two parallel plate electrodes saturated with low-volume transfer buffer. This design enables efficient current-driven migration of biomolecules under controlled voltage and current conditions, minimizing Joule heating while maintaining high transfer fidelity across molecular weight ranges (from 250 kDa). The system is optimized for both rapid high-current transfers (e.g., 15–25 V for 15–30 min) and extended low-current protocols (e.g., 10–15 V overnight), supporting flexible experimental scheduling without compromising blot uniformity or signal-to-noise ratio.

Key Features

• Single-hand operation interface: Integrated latch-style lid ensures unidirectional installation—mechanically interlocked to cut power upon removal, complying with IEC/EN 61010-1 safety requirements for laboratory electrical equipment.
• Monolithic plate electrodes: Precision-machined stainless-steel electrodes with uniform surface geometry ensure consistent field distribution and eliminate localized arcing or current leakage; no periodic cleaning or replacement required.
• Optimized sandwich clamp mechanism: Patented three-point pressure distribution minimizes air gaps and buffer channeling, eliminating band shadowing artifacts and enhancing transfer homogeneity across full gel area.
• Gold-plated spring-pin electrode connectors: Provide stable, low-resistance contact (100,000 insertion cycles; compatible with standard DC power supplies delivering 0–30 V and 0–1.5 A output.
• Dual removable cooling blocks: Pre-chilled aluminum blocks absorb exothermic heat generated during high-power transfer; enable continuous operation without external chillers or ice baths—reducing operational cost and lab footprint.
• Modular gel staging: Accommodates 1–4 gels (108 mm × 100 mm each) simultaneously using standardized cassette inserts; electrode surface (108 mm × 97 mm) matches gel width to maximize active transfer area utilization.

Sample Compatibility & Compliance

The XinBLot Fit supports standard slab gels cast in mini- or midi-format casting trays (e.g., Bio-Rad Mini-PROTEAN, Thermo Fisher Novex systems). It is validated for use with common transfer buffers (e.g., CAPS, Tris-Glycine-Methanol, Bicine-based formulations) and compatible with all widely used membrane types. All electrical components meet GB 4793.1–2007, IEC 61010-1:2010, and EN 61010-1:2010 safety standards. The unit carries CE marking for laboratory equipment and conforms to electromagnetic compatibility (EMC) requirements per EN 61326-1. No internal battery or wireless circuitry is present—ensuring intrinsic compliance with GLP documentation workflows requiring traceable, non-networked instrumentation.

Software & Data Management

As a standalone hardware platform, the XinBLot Fit operates without proprietary software or firmware. Voltage, current, and time parameters are set externally via connected DC power supply units (PSUs) with analog or digital interfaces (e.g., RS-232, USB-TTL). For audit-trail compliance in regulated environments (e.g., ISO 13485, FDA 21 CFR Part 11), users may integrate the system with validated PSU models offering timestamped logging, password-protected parameter locking, and exportable CSV reports. Clix provides detailed operating manuals, electrical schematics, and calibration verification procedures—supporting internal IQ/OQ documentation and third-party validation.

Applications

• Western blotting workflow integration: Optimized for high-efficiency transfer of denatured proteins prior to antibody probing and chemiluminescent detection.
• Native PAGE and BN-PAGE transfers: Maintains complex integrity during low-voltage, extended-duration protocols.
• Nucleic acid blotting: Suitable for Southern and Northern transfers of DNA/RNA fragments up to 15 kb when combined with alkaline or neutral transfer buffers.
• Teaching laboratories: Robust mechanical design and intuitive single-hand operation reduce training time and procedural errors in undergraduate and graduate electrophoresis courses.
• QC/QA environments: Consistent performance across batches supports method transfer between sites and long-term stability monitoring per ICH Q5C guidelines.

FAQ

What buffer volumes are supported in different configurations?
The XinBLot Fit holds up to 2350 mL when operated without gels (unloaded); with four 108 mm × 100 mm gels installed, maximum usable buffer volume is 1900 mL.
Can the system be used with pre-cast commercial gels?
Yes—compatible with standard pre-cast mini-gels (e.g., Invitrogen NuPAGE, Bio-Rad TGX) when mounted in appropriate gel cassettes matching the 108 mm × 100 mm footprint.
Is temperature monitoring integrated into the unit?
No. Temperature is managed passively via dual cooling blocks; real-time thermal feedback requires external thermocouple probes placed within the buffer chamber or sandwich stack.
Does the XinBLot Fit require routine calibration?
No scheduled calibration is mandated; however, users should verify electrode continuity and mechanical alignment annually using multimeter resistance checks and visual inspection per Clix Maintenance Guide Rev. 2.1.
Are replacement cooling blocks available as consumables?
Yes—Clix part number CB-XBF-2 is supplied as a matched pair with thermal conductivity certification (200 W/m·K at 25°C) and dimensional tolerance ±0.05 mm.