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NEST syringe filters with a PVDF (polyvinylidene fluoride) membrane are designed for the filtration of small sample volumes and are particularly suitable when low protein binding combined with good chemical resistance is required. These properties make the PVDF membrane a suitable choice for biological samples and protein-containing solutions, among other applications.
The syringe filters can be used in laboratories within life science, biotechnology, the pharmaceutical industry, environmental testing, food and beverage, and agricultural applications. They are suitable for a variety of filtration and sample preparation tasks, including protein solutions, reagents, and other laboratory samples.
The PVDF membrane has low protein binding, helping to limit the adsorption of proteins onto the membrane during filtration. At the same time, the material offers good chemical resistance, making the membrane suitable for a range of laboratory applications.
The filter housing is made of medical-grade polypropylene (PP) in a one-piece, injection-moulded construction. This provides a robust filter housing that can withstand high pressure and is designed to minimise the risk of leakage during use.
The NEST syringe filter with PVDF membrane is available with a diameter of 30 mm and a pore size of 0.22 µm.
The 0.22 µm membrane is designed for fine filtration applications where very small particles and microorganisms need to be retained.
The syringe filters are supplied sterile and individually packaged and are intended for single use.
The optimal membrane type depends on both the composition of the sample and the specific filtration application. Below, you can compare the properties and typical applications of the three membrane types available in the NEST range.
| Membrane | Properties | Typical applications |
|---|---|---|
| PES | Hydrophilic membrane with minimal protein binding and efficient flow | Filtration of biological and aqueous solutions, as well as samples containing proteins, buffers or reagents |
| PVDF | Low protein binding and high resistance to chemical exposure | Protein-containing samples and biological solutions |
| Nylon | Hydrophilic and durable membrane with broad chemical compatibility | General sample filtration, as well as aqueous solutions and certain solvents |
| Material | Polypropylene |
Hydrophilic nylon membrane
Broad chemical compatibility
Pore size: 0.45 µm
Diameter: 13, 25 or 30 mm
Sterile and individually packed
Price from EUR 47.00
(excl. VAT)
Hydrophilic PES membrane with low protein binding
Suitable for biological and aqueous solutions
0.22 µm pore size
Available in 13 mm, 25 mm and 30 mm
Sterile, individually packaged and single-use
Price from EUR 47.00
(excl. VAT)
