Hanuo UV-2000 Darkroom-Style UV Transilluminator with 302 nm Emission

Overview

The Hanuo UV-2000 is a dedicated darkroom-style ultraviolet transilluminator engineered for high-sensitivity visualization and documentation of nucleic acid and protein samples following electrophoretic separation. It operates at a fixed emission wavelength of 302 nm — a well-established compromise between detection sensitivity and reduced photodamage to DNA/RNA, minimizing thymine dimer formation during gel inspection and excision. Unlike broadband or multi-wavelength systems, the UV-2000 employs a narrowband UV source coupled with precision optical filtering to deliver stable, uniform irradiance across its 200 × 150 mm transmission viewing area. Its integrated reflective module (200 × 80 mm, 24 W) enables side-illumination for fluorescence-based assays such as TLC plate analysis and surface-bound biomolecule detection. The unit features a fully enclosed dark chamber with safety interlock, built-in white-light illumination (40 W), and a standardized camera mounting interface compatible with DSLR and scientific CMOS imaging systems.

Key Features

• Optimized 302 nm UV source: Minimizes UV-induced degradation of nucleic acids while maintaining strong ethidium bromide, SYBR® Safe, and GelRed® excitation efficiency.
• High-power transmissive UV array (64 W) ensures rapid, uniform gel visualization across the full 200 × 150 mm working area.
• Dual-mode illumination architecture: Independent control of transmissive (bottom) and reflective (side) UV channels, plus white-light overlay for annotation and reference imaging.
• Integrated darkroom enclosure with door-mounted safety switch: Automatically deactivates UV lamps upon door opening, compliant with IEC 61010-1 electrical safety requirements for laboratory equipment.
• Stainless steel sample stage with non-reflective black matte finish: Reduces stray light and improves contrast during low-intensity fluorescence detection.
• Standardized camera mount (1/4″-20 UNC thread) supports reproducible positioning for documentation workflows under GLP-aligned lab practices.

Sample Compatibility & Compliance

The UV-2000 supports standard agarose and polyacrylamide gels (up to 20 × 20 cm), TLC plates (silica gel, cellulose, aluminum-backed), and paper chromatography strips. It is routinely employed in protocols aligned with ISO 13485 (in vitro diagnostic support), USP (endotoxin testing auxiliary use), and CLSI EP17-A2 (detection limit verification for nucleic acid stains). While not certified for clinical diagnostics per FDA 510(k), its optical stability and repeatability meet internal QC criteria for academic, pharmaceutical process development, and quality control laboratories performing routine gel documentation and band excision. The 302 nm output falls within the Class 3R laser product exemption threshold per IEC 60825-1 when used with appropriate eye protection (e.g., polycarbonate UV-blocking goggles rated ≥ OD 3 at 300–310 nm).

Software & Data Management

The UV-2000 is a hardware-only platform requiring external imaging systems for digital capture. It does not include proprietary software but is fully compatible with open-standard image acquisition tools including ImageJ/Fiji (NIH), GelAnalyzer 2010, and commercial packages such as Bio-Rad Quantity One® and Thermo Fisher MyECL Imager software. When paired with a calibrated CCD or sCMOS camera, the system supports audit-trail-enabled workflows under 21 CFR Part 11 when deployed with validated LIMS or ELN platforms (e.g., LabVantage, Benchling). Metadata such as exposure time, lamp activation duration, and date/time stamp are recorded externally by the host imaging application.

Applications

• Nucleic acid analysis: Visualization and precise excision of DNA/RNA bands from ethidium bromide- or SYBR®-stained gels; estimation of fragment size and relative concentration.
• Protein detection: Imaging of fluorescently labeled proteins (e.g., Alexa Fluor®-conjugated antibodies) on SDS-PAGE or native gels.
• Thin-layer chromatography (TLC): Detection of alkaloids, steroids, vitamins, and antibiotics on silica or reversed-phase plates.
• Pharmaceutical QC: Identity confirmation and purity assessment of fluorescent APIs (e.g., riboflavin, quinine, chlorpromazine) via spot intensity and R_f value consistency.
• Food safety screening: Semi-quantitative detection of aflatoxin B1 in grain extracts using immunoaffinity column cleanup followed by TLC or HPTLC.
• Forensic serology: Visualization of latent biological stains treated with fluorescein isothiocyanate (FITC) or other UV-excitable reagents.

FAQ

Is the UV-2000 suitable for real-time PCR product analysis?
No — it is designed for post-electrophoresis visualization only and lacks integrated thermal cycling or capillary electrophoresis capabilities.
Can I use SYBR® Gold with the 302 nm source?
Yes — SYBR® Gold exhibits strong excitation at 302 nm and delivers higher sensitivity than ethidium bromide, though optimal staining requires post-electrophoresis incubation.
Does the unit include a UV-blocking acrylic shield?
Yes — a hinged, 8-mm-thick UV-absorbing acrylic lid is integrated into the darkroom enclosure and meets ANSI Z87.1 impact and radiation attenuation standards.
What maintenance is required for long-term lamp stability?
UV lamps should be replaced every 1,000–1,500 operating hours to maintain >90% nominal irradiance; reflectors must be cleaned quarterly with lint-free wipes and isopropanol to prevent output drift.
Is the UV-2000 compliant with EU RoHS directives?
Yes — all electronic components and lamp housings conform to Directive 2011/65/EU, with full material declarations available upon request from Hanuo’s technical support team.