Chemlux 600RGBW Advanced Chemiluminescence, Fluorescence & Colorimetric Gel and Western Blot Imaging System

Overview

The Chemlux 600RGBW is a high-performance, semi-automatic imaging platform engineered for quantitative and qualitative analysis of electrophoretic gels, nitrocellulose or PVDF membranes, and blotting substrates across chemiluminescent, fluorescent, and colorimetric detection modalities. Built upon a robust dark-chamber architecture with thermoelectrically cooled CCD imaging, the system delivers exceptional signal-to-noise ratio for low-abundance target detection—particularly critical in Western blot validation, multiplexed fluorescence workflows, and sensitive ECL-based assays. Its optical design integrates a fast f/0.95 lens and large-format 6 MP sensor with deep cooling (−55 °C below ambient), enabling extended exposures up to 90 minutes without thermal noise accumulation. Unlike conventional systems relying on post-acquisition software enhancement, the Chemlux 600RGBW captures native 16-bit TIFF data at hardware level—preserving linear dynamic range essential for densitometric quantification compliant with GLP/GMP documentation requirements.

Key Features

• 6 MP thermoelectrically cooled CCD sensor operating at −55 °C below ambient temperature, minimizing dark current and enabling ultra-low-light detection
• 16-bit digitization with configurable binning (up to 6×6) for optimized sensitivity vs. resolution trade-offs
• Motorized 6-position filter wheel supporting precise spectral selection for RGB excitation and emission filtering
• Epi-illumination modules: Blue (470 nm), Green (530 nm), Red (630 nm), and broad-spectrum White light; plus transilluminating 306 nm UV source (model-dependent)
• Three-tier manual sample platform accommodating standard mini-, midi-, and full-size gels/blots (max 26 cm × 20 cm)
• Real-time auto-focus algorithm coupled with precision Z-axis positioning for repeatable focal plane alignment
• Embedded Linux OS with 10.4″ capacitive multi-touch interface—no external PC required for acquisition or basic analysis
• Automatic image backup to internal storage and configurable network locations (SMB/NFS), mitigating data loss risk during long exposures
• Remote operation via secure LAN/WLAN connection with role-based access control for shared-lab environments

Sample Compatibility & Compliance

The Chemlux 600RGBW supports routine imaging of SDS-PAGE gels stained with Coomassie Brilliant Blue or SYPRO Ruby, ethidium bromide- or EcoSafe-stained DNA agarose gels, and immunoblots developed with HRP-DAB, alkaline phosphatase-NBT/BCIP, or chemiluminescent substrates (e.g., Luminol-based ECL and next-generation femtogram-range reagents). Its calibrated white backlight and epi-illumination pathways meet ISO 15195:2019 requirements for photometric stability in clinical laboratory instrumentation. The system’s firmware implements audit-trail logging per FDA 21 CFR Part 11 guidelines—including user login timestamps, exposure parameter changes, and image export events—facilitating regulatory submissions and internal QA audits. All optical components are traceably calibrated against NIST-traceable standards during factory certification.

Software & Data Management

Acquisition and processing are managed through the integrated Chemlux ImageSuite™ software, deployed natively on the device’s embedded Linux platform. The interface provides real-time histogram visualization, live preview with gain/exposure adjustment, and one-click batch capture across multiple channels. Quantitative tools include background subtraction (rolling ball algorithm), lane/profile tracing, band intensity normalization (against total lane or reference protein), and export of calibrated OD values in CSV or Excel-compatible formats. Raw 16-bit TIFF files retain full bit-depth for third-party analysis in ImageJ/Fiji, GraphPad Prism, or commercial ELN platforms. Network integration supports DICOM-compliant metadata tagging and automated transfer to institutional LIMS or electronic lab notebooks via configurable RESTful API endpoints.

Applications

• Chemiluminescent Western blotting: Detection of sub-nanogram protein levels using standard ECL (30 min exposure) or high-sensitivity ECL+ reagents (3 min exposure), validated down to 58.6 ng and 120 ng bands respectively in THP-1 lysate dilution series
• Multiplex fluorescence imaging: Simultaneous visualization of Alexa Fluor 488 (blue excitation), Alexa 546 (green excitation), and Alexa 647 (red excitation) on single blots—enabling relative quantification without stripping/reprobing
• DNA gel documentation: Sub-1 ng sensitivity for EtBr- and EcoSafe-stained agarose gels under UV transillumination or blue epi-illumination
• Colorimetric blot analysis: High-fidelity DAB/HistoGreen development imaging with 30 ms exposure under epi-white illumination
• 2D DIGE pre-screening: Rapid assessment of CyDye-labeled samples prior to mass spectrometry submission

FAQ

Does the Chemlux 600RGBW support time-lapse imaging for kinetic chemiluminescence assays?
Yes—the system allows programmable multi-frame acquisition with user-defined intervals (1 s to 60 min), storing each frame as a timestamped 16-bit TIFF with embedded exposure metadata.
Can I import custom LUTs or apply non-linear intensity transformations during acquisition?
No—acquisition preserves linear response per pixel. Non-linear adjustments (gamma, contrast stretching) are available only in post-processing mode to maintain quantitative integrity of raw data.
Is the UV transilluminator included with all Chemlux 600RGBW configurations?
The 306 nm UV transilluminator is standard only on the Chemlux 600W-UV variant; RGBW models require optional UV module installation.
What cybersecurity protocols are implemented for remote access?
SSHv2 encryption, TLS 1.2 for web interface, mandatory password complexity enforcement, and session timeout after 15 minutes of inactivity.
How frequently does the system require recalibration?
Factory calibration is valid for 24 months under normal use. Annual verification using supplied grayscale and fluorescence reference standards is recommended for GLP-compliant labs.