Elevate Your Diagnostic Capabilities with Unisart® Nitrocellulose Membranes
Discover the unparalleled performance and consistency of Unisart® CN membranes, the leading choice for high-quality nitrocellulose membranes in point-of-care (POC) and rapid antigen tests (RAT). Whether you are developing standard lateral flow tests or multiplex assays, Unisart® membranes offer exceptional reliability and precision.
Membrane Selection Guide
How to choose the Unisart CN membrane, which is best suited for lateral flow assays and multiplexing.
Explore Unisart® Nitrocellulose Membranes
Accelerate Your Time to Market Using Unisart® Lateral Flow Membranes
Unisart® CN membranes are known for their reliable capillary speed, high protein binding, homogenous thickness, and a smooth, defect-free membrane surface. These features are essential for fast and efficient IVD assay development and high-quality lateral flow test strips.
Available in various dimensions and customizable upon request, Unisart® membranes offer tailored solutions for diverse diagnostic applications.
Shop Unisart® Lateral Flow
Unisart StructSure® Membranes for Multiplex Assays
Unisart StructSure® Membranes are designed for the next generation of multiparameter testing, offering unparalleled precision and efficiency.
Multiplexing Capability: Simultaneously test for multiple targets from a single sample, ensuring parallel testing under identical conditions.
Miniaturization: Experience faster overall assay times without compromising on accuracy.
Enhanced Signal Intensity: Achieve clearer results with increased protein signal intensity, reducing the need for large quantities of capture molecules and less overall costs.
| Product | 3-channel S-shape Unisart StructSure® | 4-channel S-shape Unisart StructSure® | 5-channel S-shape Unisart StructSure® | 6-channel S-shape Unisart StructSure® |
|---|---|---|---|---|
| Quantity of structures per roll | 10000 | 8000 | 7000 | 6000 |
| Width of channel | 2 mm | 2 mm | 2 mm | 2 mm |
| Length of channel | 26.2 mm | 26.2 mm | 26.2 mm | 26.2 mm |
| Width of structure | 8.2 mm | 10.2 mm | 12.2 mm | 14.2 mm |
| Roll width | 25 mm | 25 mm | 25 mm | 25 mm |
| Roll length | appox. 85 m | appox. 85 m | appox. 85 m | appox. 85 m |
| Backing | 100 µm Polyester, clear | 100 µm Polyester, clear | 100 µm Polyester, clear | 100 µm Polyester, clear |
| Item Number (1 roll per box) | 3UN14ER103S01WS | 3UN14ER084S01WS | 3UN14ER075S01WS | 3UN14ER066S01WS |
| Item Number (5 rolls per box) | 3UN14ER103S01WSB | 3UN14ER084S01WSB | 3UN14ER075S01WSB | 3UN14ER066S01WSB |
Why Choose Unisart® Membranes?
The exceptional inter- and intra-lot consistency of Unisart® Membranes ensures accurate results, consistent readouts, improved test performance, reduced manufacturing costs, and faster time to market.
As the first industrial manufacturer of nitrocellulose membranes, we leverage our extensive expertise to drive continuous improvements in our state-of-the-art manufacturing. This ensures a reliable supply of high-quality Unisart® Membranes with large-scale availability.
All Unisart® Membranes are developed and produced in Göttingen, Germany with adherence to our ISO 9001 certified Quality Management System. All membrane products undergo rigorous in-house testing to meet our stringent quality standards.
All Unisart® Membranes feature comprehensive labeling for easy data retrieval on materials, production steps, and QC tests ensuring full traceability. Additionally, they are EU REACH compliant, enhancing regulatory efficiency for lateral flow test manufacturers and ensuring EU market access.
Resources
Featured Resources
Product Resources
UniSart® Nitrocellulose Membranes - The Substrate of Choice for Protein Assays
PDF | 20.3 MB
Video Tutorials
Improving Lateral Flow Assay Performance by Choosing the Right Dispenser Setup
You can optimize the performance of any lateral flow membrane by tailoring it to the specific requirements of the assay. A key part of this process is optimizing the printing conditions for the protein lines. Carefully selecting three printing parameters is crucial for the performance of a lateral flow test:
- Printing rate
- Protein concentration
- Printing speed
How to Measure Physical Properties of Unisart Diagnostic Membranes
This training video shows you how to measure the physical properties of Unisart®️ Nitrocellulose (CN) Membranes. You will learn how to measure thickness and capillary speed.
How to Select a Unisart® Diagnostic Membrane for Lateral Flow Assays
This video will guide you through the selection process to ensure you choose the right membrane for your assay. Learn about the main criteria:
- Assay type
- Assay time
- Sample viscosity
- Assay sensitivity
Frequently Asked Questions
If stored according to our storage recommendations, Unisart® Membranes and Unisart StructSure® Membranes have a shelf-life of three years after their manufacturing date. The shelf-life is indicated on each Certificate of Analysis.
Unlike polymer membranes like PVDF or PTFE, Unisart® nitrocellulose membranes do not inherently contain fluorinated derivatives. Per- and polyfluoroalkyl compounds, also known as PFC, PFAS, PFOA, PFOS or PTFE are not intentionally used in the manufacturing process.
It is recommended to store Unisart® membranes at a constant temperature between 15 – 25°C and a relative humidity between 40 – 60 %. In any case, the membrane should be kept away from open fire, heat sources, light and chemical vapors of any kind.
It is recommended to keep the membrane rolls in their original packaging and keep it closed in a dedicated storage area. The membrane roll with paper separator is packed in a primary packaging (plastic pouch). The article in primary packaging is packed in a secondary packaging (cardboard box).
The paper separator has an important safety function. Therefore, it must be ensured that the paper separator is not removed from the membrane rolls before processing. The paper separator significantly reduces the decomposition rate of our Unisart® membranes. All Unisart® membranes are exclusively sold containing this paper separator.
When handling Unisart® membranes ensure sufficient ventilation and avoid direct skin contact to prevent contamination of the membrane. Furthermore, prolonged direct contact to any material that can release chemicals should be avoided. These substances might alter important membrane properties such as wettability.
Do not store more membrane than needed for your daily production in your working area.
Sartorius offers five different membrane types within the Unisart® CN Membranes portfolio with a broad range of different formats. Download the brochure.
Some of the products are available on the Sartorius eShop and can be ordered online. If your desired item is not included, please contact our team via unisart@sartorius.com.