Bel-Art Flowmi Cell Strainer 70 um Sterile 100 Strainers

Bel-Art 136800070 Flowmi Cell Strainer – 70 µm, for 1000 µL Pipette Tips

The Bel-Art 136800070 Flowmi is a revolutionary, micro-volume cell strainer designed for the rapid and efficient clarification of small-scale cell suspensions. Engineered with a 70 µm nylon mesh, this strainer is specifically designed to press-fit onto the end of most standard 1000 µL (1 mL) pipette tips. By filtering the sample directly during the pipetting step, the Flowmi eliminates the need for large, traditional funnel strainers that often cause significant sample loss due to "dead volume." This "inline" filtration method effectively removes cellular clumps, debris, and tissue fragments, ensuring a uniform single-cell suspension and protecting expensive flow cytometer and microfluidic components from clogs. Supplied in a convenient, sterile sliding-lid tray, Flowmi is the ideal tool for single-cell genomics, flow cytometry, and any high-sensitivity cell analysis protocol.

Technical Performance and Design

• 70 µm Nylon Mesh: The precision-woven mesh provides a consistent pore size to effectively remove larger aggregates and clumps while allowing single cells to pass through with minimal shearing force.

• Zero-Dead-Volume Design: Because the filtration occurs within the pipette tip fluid path, there is virtually no sample loss, making it the premier choice for low-volume or high-value samples (e.g., primary cells, biopsies).

• Universal Press-Fit: The compact housing is engineered to securely fit onto the distal end of leading 1000 µL pipette tips (such as Eppendorf, Gilson, and Rainin), requiring only a simple press to attach.

• Sterile Sliding Tray: The packaging allows for easy, one-handed access while maintaining the sterility of the remaining strainers, preventing contamination in cleanroom or hood environments.

Product Specifications

• Catalog Number: 136800070 (Bel-Art / Scienceware)

• Porosity: 70 µm

• Compatibility: Standard 1000 µL (1 mL) Pipette Tips

• Material: Polypropylene housing with Nylon mesh

• Sterility: Sterile (Ethylene Oxide)

• Quantity: 50 Strainers per Pack

Key Benefits & Applications

• Flow Cytometry Preparation: The essential final step before loading samples into a flow cytometer to prevent fluidic clogs and ensure clean data acquisition.

• Single-Cell Sequencing (scRNA-seq): Ensures that only single cells are loaded into microfluidic chips (like 10x Genomics), preventing doublets and improving library quality.

• Primary Cell Isolation: Effectively separates dissociated cells from undigested tissue fragments after enzymatic digestion of organ or tumor biopsies.

• Preservation of High-Value Samples: Unlike 40 mL funnel strainers that can "trap" hundreds of microliters of liquid, the Flowmi ensures that every drop of your precious sample is recovered and filtered.

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