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Phage Purification with Size-exclusion Chromatography

Phage Purification with Size-exclusion Chromatography

Size Exclusion Chromatography (SEC) is currently the most powerful chromatography technique that can be used to obtain reliable information about the size of biomolecules under natural conditions. Phage display has proven to be a powerful and convenient method for rapid sampling of target ligands for billions of protein structures. The most common system uses protein and peptide display as a fusion to coat protein III or VIII of the M13/fd phage. Effective screening of phage display libraries requires high purity of input phage particles. Polyethylene glycol (PEG) double precipitation (PEG-8000) with an average molecular weight of 8000 Da is the standard technique for purifying filamentous bacteriophages. Some contaminants may remain in the PEG-purified phage preparation. Size exclusion chromatography has been used to prepare pure eukaryotic viruses and bacteriophages lambda. SEC is the preferred method for the effective purification of filamentous bacteriophages under mild conditions.

Our Services

SEC is an efficient method used to purify your phage. The purification method you need depends on your project. Our services are listed as follows, but are not limited to:

  • Sample preparation in size exclusion chromatography
  • Phage purification
  • MS data provided
  • Providing a broad range of column dimensions
  • Process development
  • Traceability analysis
  • Monitor phage quality
  • Evaluate column efficiency
  • To scale up a SEC separation

Other Related Services

  • Phage stability experiments
    For isolated and purified phages, we provide high-level stability testing experiments to ensure the smooth progress of your project.
  • Phage cultivation
  • Lipopolysaccharide (LPS) test
    LPS is concentrated with phage, resulting in very high levels of endotoxin in some phage preparations. We recommend phage for LPS test.
  • Conservation and storage
    Some phage strains are relatively heat-resistant and can survive pasteurization temperatures. However, purified T4-like phage showed rapid titer loss at 70°C. We will consider adding Mg 2+ to cause the phage preparation to maintain a good residual titer even after being stored at 30°C for more than a month.

Phage Panning Formats

The panning efficiency of SEC-purified phage is analyzed in three different formats:

  • δpIII-based peptide display
  • pVIII-based peptide display
  • δpIII-protein display

We Do Better

    Phage Purification with Size-exclusion Chromatography
  • We provide high-quality SEC for the purification of filamentous bacteriophages.
  • Solving problems with professional knowledge and creativity
  • Complex biological data interpretation
  • Responsive project management
  • Extensive experience in size exclusion chromatography phage purification
  • Experience in patent strategy

Creative Biolabs can meet the needs of customers for providing phage purification services with size-exclusion chromatography on time and on budget. Our skilled and dedicated scientific researchers ensure that the most suitable methods and techniques are selected for each professional for your project. If necessary, please feel free to contact us.

Please kindly note that our services can only be used to support research purposes (Not for clinical use).

Biophage Technology

Creative Biolabs is a globally recognized phage company. Creative Biolabs is committed to providing researchers with the most reliable service and the most competitive price.

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