Nitrocellulose Membrane for Lateral Flow Assays (CAT#: STEM-BC-0223-ZJF)

The nitrocellulose membrane is a core reaction membrane for lateral flow immunoassay test strips. It immobilizes specific target molecules at the test line and control line while guiding sample conjugates through the reaction region. The membrane provides high porosity, strong protein-binding capacity, rapid wetting, low background, uniform pore structure, and consistent capillary flow. Cobetter NC95C and NC140C membranes are available for different assay speed and sensitivity requirements. NC95C is suitable for high-viscosity samples and rapid-response tests, while NC140C has a slower capillary speed and stronger protein binding for higher sensitivity. The membrane is suitable for colloidal gold, latex, and fluorescent immunochromatographic assays.

Membrane types: NC95C and NC140C
NC140C capillary speed: 140 ± 20 s/4 cm
NC140C coating thickness: 140 ± 15 μm
NC140C backing thickness: 125 ± 15 μm
NC140C protein adsorption: 30 μg IgG/cm²
NC140C porosity: 81%
NC95C capillary speed: 95 ± 15 s/4 cm
NC95C coating thickness: 150 ± 15 μm
NC95C backing thickness: 125 ± 15 μm
NC95C protein adsorption: 30 μg IgG/cm²
NC95C porosity: 71%
Custom length and width available

High porosity
Strong protein binding
Rapid wetting
Consistent lateral flow speed
Low background
Uniform pore structure
Controlled thickness
Clear and readable signals
Smooth defect-free surface
Multiple capillary speeds available
Custom length and width
Suitable for infectious disease, cardiac, pregnancy, drug, food and pesticide testing

STEM-BC-0039-ZJF
STEM-BC-0040-ZJF
STEM-BC-0065-ZJF
STEM-BC-0066-ZJF
STEM-BC-0067-ZJF