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Thermo Scientific™ Slide-A-Lyzer™ 3.5K MWCO G2 Dialysis Cassettes

Remove buffer salts and contaminants while maximizing sample recovery with these second-generation self-floating protein dialysis cassettes (3.5K MWCO).

Manufacturer: thermo scientific™  87722

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Catalog No. PI87722


Description & Specifications


Description Slide-A-Lyzer G2 Dialysis Cassettes, 3.5K MWCO, 0.5mL
Formulation Cellulose membrane framed in inert plastic
Quantity 10 cassettes
Sufficient For 10 samples, each 0.1 to 0.75mL
MWCO 3500 Da
Capacity (Metric) 0.5mL
Item Description 0.5mL-capacity Cassettes; 10 cassettes

Thermo Scientific™ Slide-A-Lyzer™ 3.5K G2 MWCO Dialysis Cassettes provide maximum convenience, flexibility and performance for sample dialysis.

These second generation (G2) Slide-A-Lyzer Dialysis Cassettes are free-standing, self-floating and pipette-loadable units for dialysis. The single-use, disposable cassettes are available in five different sizes to accommodated samples between 0.1 and 70mL. They offer maximum efficiency, convenience and sample protection in one package. Sample loading and removal are easily accomplished by using a serological pipette or hypodermic needle (optional) attached to a syringe. The built-in air chamber provides sample buoyancy and vertical orientation of the cassette during dialysis.

The 3.5K molecular-weight cutoff (MWCO) cassettes use a cellulose membrane that is rated to completely retain proteins and other macromolecules that are larger than 3500 daltons while allowing removal of buffer salts and small contaminants. The membrane is composed of low-binding regenerated cellulose, and the cassettes are manufactured using clean-room conditions.


  • Easy-loading – pipette-accessible for easy sample loading and retrieval

  • Self-floating – integrated air chambers eliminate the need for float buoys

  • Sturdy construction – ensures the highest possible sample integrity and protection

  • Superior design – thoroughly researched and tested to provide fast and consistent dialysis with maximum sample recovery

  • Multiple sizes – five cassette capacities to optimally match 0.1 to 70mL sample volumes

  • Versatile – ideal for removing low molecular-weight contaminants, performing buffer exchange and desalting

3.5K Dialysis Membrane Specifications:

  • Composition: Regenerated cellulose synthesized by the Viscose method
  • Thickness: 0.9 to 1.2mil (22.5 to 30μm)
  • Hydration Required Before Use: 30 seconds
  • Glycerol Content: Trace
  • Sulfur Content: 0.1 to 0.15%
  • Heavy Metals Content: Trace