NucliStain: UV-Free Visualization for Enhanced PCR Purification Yield
NucliStain is a high-performance alternative to ethidium bromide (EtBr) designed for the rapid detection of double and single-stranded DNA and RNA in agarose and polyacrylamide gels. Traditional staining methods often rely on UV transillumination, which can cause significant damage to nucleic acid samples, reducing the efficiency of downstream applications. NucliStain eliminates this risk by allowing results to be visualized under normal lighting conditions, ensuring the integrity of the genetic material is maintained throughout the electrophoresis process.
The technology behind NucliStain relies on a reversible binding mechanism that does not modify the nucleic acids. When applied, the stain produces distinct dark blue bands against a light blue background, visible to the naked eye without the need for specialized imaging equipment. This approach is particularly advantageous for researchers performing PCR purification, as it significantly improves the yield of smaller and medium-sized DNA fragments (less than 500 bp) compared to standard EtBr protocols.
Key Benefits:
- UV-Free Visualization: Protects sample integrity. By enabling detection under normal light, NucliStain prevents UV-induced mutations and strand breaks, preserving DNA for downstream use.
- Enhanced Purification Yield: Optimised for small fragments. Specifically improves the recovery of DNA under 500 bp during purification from agarose gels.
- Reversible Binding: Non-modifying technology. The stain does not permanently alter the nucleic acids, ensuring that samples remain suitable for subsequent enzymatic reactions.
- Streamlined Workflow: Simple 1:100 dilution. NucliStain is easy to prepare and use, requiring only a simple water dilution to create a working strength solution.
- Broad Sample Compatibility: Versatile detection. Effectively stains dsDNA, ssDNA, and RNA in both agarose and polyacrylamide matrices.
Technical Insights
Comparative Yield Analysis
The figure illustrates the improved yield of DNA purified from agarose when using NucliStain versus Ethidium Bromide. In this study, identical DNA samples were run on two gels—one stained with NucliStain and the other with EtBr. After purification and re-running side-by-side, the bands from the NucliStain-treated gel show significantly higher intensity, demonstrating its superior performance for recovering smaller DNA fragments.
Specifications
- Sensitivity: 10–50 ng of nucleic acid
- Visualization: Normal lighting (UV-free)
- Concentration: 25 ml concentrate (makes 2.5 Litres of working solution)
- Dilution Ratio: 1:100 with distilled water
- Staining Time: 20–30 minutes
- Destaining Time: 3–4 hours (or overnight for maximum sensitivity)
- Appearance: Opaque blue liquid
- Safety Note: Laboratory experiments have shown mutagenic effects; may be harmful if swallowed. Handle with appropriate laboratory PPE.