Hanuo Hanuo-UVI Blue Light Transilluminator

Overview

The Hanuo Hanuo-UVI Blue Light Transilluminator is a purpose-engineered benchtop instrument designed for safe, high-contrast visualization and precise excision of nucleic acid bands in agarose and polyacrylamide gels. Unlike conventional UV transilluminators operating at 254 nm or 302 nm, the Hanuo-UVI utilizes narrow-band 470 nm blue light excitation—optimized for modern, low-toxicity fluorescent nucleic acid stains. This wavelength minimizes DNA photo-damage during imaging and eliminates direct exposure to mutagenic short-wave ultraviolet radiation, significantly reducing occupational health risks for laboratory personnel. The device implements a side-illuminated LED matrix architecture with uniform optical coupling into a transparent acrylic light guide, delivering consistent intensity across the entire 150 × 100 mm active viewing area. Its compact footprint (220 × 210 × 40 mm) and lightweight design (1.5 kg) support integration into crowded electrophoresis workstations without compromising ergonomic access or workflow continuity.

Key Features

• Side-mounted 470 nm blue LED matrix with >95% spectral purity and calibrated irradiance stability over time—ensuring reproducible band detection across repeated experiments.
• Full-surface transparent excitation filter integrated into the viewing platform, enabling simultaneous observation, annotation, and gel slicing under continuous illumination without repositioning.
• Multi-angle adjustable gel holder with spring-loaded clamping mechanism—supports horizontal, tilted (15°–45°), and near-vertical orientations for optimal cutting ergonomics and reduced shadow interference.
• Passive thermal management system with aluminum heat-sink base and low-power DC24V/1A input—eliminates fan noise, vibration, and condensation risk during prolonged operation.
• LED light source rated for ≥50,000 hours of operational life—translating to over 10 years of daily use in core facility or teaching lab environments with no lamp replacement or alignment maintenance required.

Sample Compatibility & Compliance

The Hanuo-UVI is validated for use with all major commercially available blue-light–compatible nucleic acid dyes, including GeneGreen, GelRed, GelGreen, SYBR Green I, SYBR Safe, GoldView, SYBR Gold, SYPRO Ruby, SYPRO Orange, SYPRO Tangerine, eGFP, Cy2, FITC, and ethidium bromide (EB). It meets IEC 61010-1:2010 safety requirements for laboratory electrical equipment and incorporates Class 1 LED emission compliance per IEC 62471:2006 (Photobiological Safety of Lamps). While not classified as a medical device, its optical output profile aligns with best practices recommended by the American Society for Biochemistry and Molecular Biology (ASBMB) for minimizing UV-associated mutagenicity in routine molecular biology workflows. No regulatory certification (e.g., CE, FDA 510(k)) is claimed, as the unit is intended solely for research use—not clinical diagnostics or GMP manufacturing.

Software & Data Management

The Hanuo-UVI operates as a standalone hardware platform with no embedded firmware, touchscreen interface, or proprietary software dependency. All functionality is controlled via physical power switch and requires no driver installation, network configuration, or data export protocols. This design ensures compatibility with any third-party gel documentation system—including digital gel imagers (e.g., Bio-Rad ChemiDoc, Azure Biosystems cSeries), DSLR cameras, or smartphone-based capture setups—without latency, licensing restrictions, or vendor lock-in. For laboratories maintaining GLP or ISO/IEC 17025-compliant documentation, the absence of electronic records means no 21 CFR Part 11 audit trail requirements apply; however, users may log usage manually in instrument logs alongside gel images and downstream analysis metadata.

Applications

• Routine post-electrophoresis visualization and band isolation for Sanger sequencing template preparation, PCR product purification, and restriction digest verification.
• Preparative gel extraction prior to cloning, ligation, or NGS library construction—where minimizing UV-induced thymine dimer formation preserves template integrity.
• Teaching laboratory instruction in molecular biology techniques, where visual clarity, operational simplicity, and operator safety are pedagogical priorities.
• Quality control checks of RNA integrity (e.g., ribosomal band ratios) and plasmid supercoiling patterns under non-destructive illumination conditions.
• Compatibility testing of novel fluorogenic dyes and stain formulations requiring stable, narrowband blue excitation sources.

FAQ

Is the Hanuo-UVI compatible with ethidium bromide (EB)?

Yes—EB exhibits strong excitation at 470 nm and remains fully functional on this platform, though alternative dyes such as GelRed or SYBR Safe are recommended for improved sensitivity and reduced mutagenicity.
Can I use the Hanuo-UVI for protein gels stained with SYPRO Ruby?

Yes—SYPRO Ruby is efficiently excited by 470 nm blue light and delivers high signal-to-noise ratios on SDS-PAGE gels imaged under this system.
Does the unit include a camera or image capture capability?

No—the Hanuo-UVI is a dedicated transillumination source only. Image acquisition requires an external camera system positioned above the gel surface.
What is the expected lifetime of the LED array under continuous use?

Rated minimum operational lifetime is 50,000 hours at nominal current drive, corresponding to approximately 11 years of 12-hour daily operation without measurable lumen depreciation.
Is the transparent viewing plate removable for cleaning or gel handling?

Yes—the acrylic light guide plate is secured with four captive screws and can be fully detached for solvent-based decontamination or replacement without tools.