Membrane Filter

Nylon Membrane Filter

The Nylon Membrane Filter is a supported, naturally hydrophilic membrane designed for general filtration and medical assays. It wets out evenly without requiring wetting agents, reducing extractables in aqueous solutions. It is compatible with aqueous solutions, alcohols, and most organic solvents, and is ideal for applications requiring high protein binding capacity and low extractables.

Naturally hydrophilic membrane wets out evenly without wetting agents, reducing extractables in aqueous samples
High protein, DNA, and RNA binding capacity supports biological sample preparation
Low extractable profile maintains clean HPLC baselines and supports sensitive assays
Consistent lot-to-lot performance reduces variability in method reproducibility

Key Benefits

What This Product Gives You

Naturally hydrophilic membrane wets out evenly without wetting agents, reducing extractables in aqueous samples
High protein, DNA, and RNA binding capacity supports biological sample preparation
Low extractable profile maintains clean HPLC baselines and supports sensitive assays
Consistent lot-to-lot performance reduces variability in method reproducibility

Naturally hydrophilic membrane wets out evenly without wetting agents
High surface area and high protein binding capacity for biological samples
Compatible with aqueous, alcoholic, and most organic solvents
Available in disc, roll, sheet, strip, and customizable formats for flexible integration

Where It Is Used

Applications And Buyers

Application Scenarios

Filtering aqueous and alcoholic samples in diagnostic kit manufacturing
Preparing biological samples for protein, gene probe, and lateral flow assays
Filtration of HPLC mobile phases and sample solutions to prevent column fouling
Sterilizing solutions in IV filter applications and medical assay workflows
Removing particulates and bacteria from serum and blood glucose samples

Who It Is For

Pharmaceutical and biotech labs requiring low extractables in protein and nucleic acid samples
Diagnostic manufacturers using membrane filters in lateral flow and biosensor devices
Environmental and food testing labs handling mixed aqueous and solvent matrices
Contract labs performing high-throughput sample preparation with consistent results
OEMs integrating filters into medical or analytical devices requiring sterilization compatibility

Problems It Solves

Extractables from wetting agents in hydrophilic membranes contaminating HPLC baselines
Low protein binding capacity in non-specific membranes leading to sample loss
Inconsistent lot-to-lot performance causing method variability in QC testing
Filter clogging from poor surface area or weak membrane structure in high-load samples

Data

Specifications

Membrane Material	Hydrophilic Nylon66
Color	White / Plain
Membrane Format	Disc, Roll, Sheet, Strip, Customizable
Thickness	120±10 μm
Max Operating Pressure	75 bar
pH Range	6-13
Pore Size	0.1, 0.22, 0.45, 0.8, 1.0, 3.0, 5.0, 10 micron
Water Flow Rate (25°C, Δp=0.07 MPa)	2, 4, 12, 20, 40, 60, 80, 200 ml/min/cm²
Bubble Point	≥3.5, ≥2.8, ≥1.8, ≥0.8, ≥0.6, ≥0.4, ≥0.3, ≥0.1 bar
Sterilization Compatibility	Autoclave, Ethylene Oxide, E-Beam, Gamma Irradiation

Materials

Hydrophilic Nylon66 membrane
Support structure for disc and roll formats

Customization Options

Custom membrane formats including discs, sheets, strips, and rolls
Custom dimensions and packaging configurations available upon request
OEM private-label printing and packaging through the Microlab OEM division
Custom pore size and thickness options available for high-volume orders

How It Is Made

Manufacturing And Quality Control

Manufacturing Process

Membrane die-cutting from raw sheet or roll
Precision cutting to specified disc, sheet, strip, or roll dimensions
Quality inspection of membrane integrity and pore size
Packaging in accordance with order specifications
Labeling with part number, pore size, and diameter

Quality Control

Membrane thickness verified within 120±10 μm tolerance
Pore size confirmed via bubble point and flow rate testing
Sterilization compatibility tested per specified methods
Lot-to-lot consistency verified through performance tracking
Visual inspection for defects, tears, or contamination before packing

Comparison

Compared With The Alternatives

Versus Cellulose acetate membranes

Versus Multi-layer filters

Single-layer nylon reduces extractables and flow resistance compared to multi-layer pre-filters, which add material and potential leachables

Versus Wetted hydrophilic membranes

Nylon is naturally hydrophilic and does not require wetting agents, eliminating extractables from surfactants

Use Guide

How To Use It

Select pore size based on particle size: 0.22 micron for bacterial removal, 0.45 micron for routine HPLC sample filtration
Use 0.1 to 0.45 micron for protein and nucleic acid samples requiring high binding capacity
Ensure pH stays within 6-13 range to maintain membrane integrity
Use in conjunction with compatible housings or support frames for disc formats
Avoid prolonged exposure to strong oxidizing agents or chlorinated solvents

Photos

Product Gallery

Also In This Category

Related Industries And Guides

Pharmaceutical QC Laboratories Membrane Filter Material Selection Guide

FAQ

Questions Buyers Ask

What is the maximum temperature this filter can withstand?

It maintains structural integrity and performance under high-temperature sterilization.

Can this filter be used for protein sample preparation?

Yes. The high protein binding capacity and low extractables make it suitable for protein, DNA, and RNA filtration.

Is the membrane compatible with HPLC mobile phases?

Yes. It is compatible with aqueous, alcoholic, and most organic solvents used in HPLC, with low extractables.

Can I order custom sizes or formats?

Yes. Custom disc, sheet, strip, and roll formats are available. Contact the OEM division for volume-based customization.

How are the filters packed?

Discs are packed in 200 pcs/pk (13 mm, 25 mm), 100 pcs/pk (47 mm, 90 mm), 50 pcs/pk (142 mm), and 25 pcs/pk (293 mm). Rolls are 1 per pack.