If you need versatile cell culture inserts to enable co-culture, transwell-like assays, or easy media transfer, these permeable inserts are a strong fit. They keep the membrane suspended, prevent side-touch wicking, and support two-cell systems in a single plate. The following selections are well-suited for researchers and lab technicians seeking reliable, sterile inserts for drug transfer, migration studies, and cell–cell interaction experiments. Below, each product is described with ideal use cases and practical considerations.
| Product | Best For | Plate Type | Membrane Size | Material |
|---|---|---|---|---|
| CELLTREAT 230631 Permeable Inserts | Co-culture and transport assays | 24-well | 3.0 µm | PC |
| CELLTREAT Permeable Inserts (8.0 µm) | Migration and drug transfer studies | 24-well | 8.0 µm | PC |
| CELLTREAT Permeable Inserts (3.0 µm PET) | Co-culture and cell–cell interaction | 24-well | 3.0 µm | PET |
| CELLTREAT Permeable Inserts (6-well PET, 3.0 µm) | Single-plate transwell experiments | 6-well | 3.0 µm | PET |
| CELLTREAT Permeable Inserts (24-Well PET, 0.4 µm) | Fine barrier studies and small molecule transport | 24-well | 0.4 µm | PET |
CELLTREAT 230631 Permeable Cell Culture Inserts
Best for co-culture experiments in 24-well plates. The injection-free design centers the insert in the well, keeping the membrane suspended and away from the side walls, which reduces wicking and allows one cell line to grow in the insert while another grows below. This setup supports drug transfer assays, transport studies, migration assays, and cell–cell interaction experiments. Transfer cultures to fresh media by moving the insert to a new plate. Ideal for labs running parallel cell culture conditions.
Who it’s for: researchers needing clean separation between two cell populations within a single plate, with straightforward media transfers. Limitation: uses PC plastic; verify chemical compatibility with specific reagents before long-term use.
Permeable Inserts, 8.0 µm (24-Well Plate)
Best for studies requiring barrier width that allows more robust cell migration and interaction. The 8.0 µm pore size is commonly used for co-culture and transport assays, while maintaining separation across the membrane. The inserts are centered to prevent wicking and are designed for easy media transfer by simply moving the insert. Suitable for drug transfer and migration studies; avoid if very tight cell–cell communication is required across the membrane.
Who it’s for: investigators prioritizing migration assay sensitivity. Limitation: pore size may be too large for certain selective transport experiments.
Permeable Inserts, PET, 3.0 µm (24-Well)
Best for co-culture experiments where PET provides robust transparency and chemical resistance. The 3.0 µm membrane supports effective separation while enabling soluble factor exchange. The membrane remains suspended in the well, enabling two distinct cell environments. Transfer cultures to fresh media by moving the insert to a new plate. Caution: verify compatibility with certain solvents that may interact with PET materials.
Who it’s for: labs needing a balanced pore size with chemical resistance. Limitation: PET may have different adsorption properties for some molecules compared with PC materials.
Permeable Inserts in 6-Well Plate, PET, 3.0 µm
Best for larger-well format experiments that require flexible scale-up. The 3.0 µm PET membrane supports co-culture and downstream analyses while keeping cells physically separated. The inserts center reliably in each well to prevent side-wall wicking. Transfer cultures by moving the insert to fresh media as needed. Consider 6-well compatibility when planning multi-condition studies that require more space per condition.
Who it’s for: researchers conducting medium-throughput projects with two-cell systems. Limitation: limited to PET compatibility; ensure reagents do not compromise PET integrity.
Permeable Inserts, 8.0 µm PET (24-Well)
Best for co-culture studies emphasizing membrane-mediated exchange with a slightly larger pore. The surface is designed for uniform center alignment to avoid membrane-well contact and to support seamless media transfers. Use for drug transfer assays and migration studies; avoid if ultra-fine barrier control is required where 0.4 µm or smaller is necessary for particles or bacteria studies.
Who it’s for: labs needing a robust, general-purpose 8.0 µm barrier. Limitation: larger pore size may permit higher levels of diffusion for certain analytes.
Permeable Inserts, 6-Well PET, 8.0 µm
Best for larger-scale co-culture experiments in a 6-well plate format. The PET membrane offers chemical resistance and clear visualization for monitoring cell growth, while the 8.0 µm pore size supports robust exchange. Transfers to fresh media are straightforward by moving the insert. Choose this if you need more surface area per condition and plan longer culture periods. Caution: confirm compatibility with specific coatings or reagents used in downstream assays.
Who it’s for: researchers performing medium to high-throughput 6-well studies. Limitation: PET material may interact differently with certain solvents than PC variants.
Celltreat 6-Well PC, 0.4 µm (Inserts)
Best for precise barrier studies with small molecule exchange in a 6-well plate. The PC membrane with 0.4 µm pore size offers a tight barrier, suitable for experiments where diffusion needs tight control. The inserts remain centered and suspended, enabling straightforward media changes by plate transfer. Suitable for drug screening and barrier integrity tests. Limitation: pore size limits rapid diffusion of larger molecules.
Permeable Inset, 24-Well PET, 0.4 µm (Alternative)
Best for tight barrier applications where 0.4 µm pore size is essential. The PET membrane provides chemical resistance while supporting co-culture and controlled diffusion. The inserts stay centered, and media transfers are achieved by moving the insert to a new plate. Use this option when experimental design prioritizes strict barrier characteristics over rapid molecular exchange. Limitation: smaller pores may slow diffusion of larger biomolecules.
Buying Guide
Key considerations when choosing permeable cell culture inserts include pore size, membrane material, plate format, and intended use.
- Pore size: Larger pores (e.g., 8.0 µm) enable greater cell migration and faster diffusion; smaller pores (0.4 µm) provide tighter barriers for selective exchange.
- Membrane material: PC is often clear and versatile; PET can offer chemical resistance and durability; PET may have different adsorption characteristics compared with PC.
- Plate format: 24-well plates are compact for parallel experiments; 6-well plates offer more surface area per condition for longer culture periods.
- Co-culture capability: Ensure the insert design keeps membranes suspended and centered to prevent contact with well walls and minimize wicking.
- Media handling: Consider inserts that are easy to transfer between plates for feeding or assay timelines.
- Sterility and single-use: All items listed are described as sterile and single-use, which reduces cross-contamination risks.
Practical tips for selecting inserts
- Match pore size to your assay needs: migration-focused studies benefit from larger pores; barrier-focused assays benefit from smaller pores.
- Choose membrane material based on reagents used in downstream steps to avoid unwanted adsorption or chemical interactions.
- Confirm plate compatibility with your existing lab workflow, including automation or manual handling considerations.
Frequently Asked Questions
- What is a permeable cell culture insert? It is a membrane-bound device placed in a well to separate two cell populations while exchanging soluble factors.
- What plate formats are available? Inserts come in 24-well and 6-well configurations, with various pore sizes and membrane materials.
- When to use 3.0 µm vs 8.0 µm pores? Use 3.0 µm for tighter barrier control; 8.0 µm for enhanced migration and diffusion.
- Can I transfer cultures between plates? Yes, many inserts are designed to move to a new plate for media changes or re-seeding.
- Are these inserts sterile for immediate use? Yes, all listed inserts are sterile and intended for single-use applications.
- Which material is better, PC or PET? PC is common and clear; PET offers strong chemical resistance—choose based on the solvent and coating compatibility of your assay.
Summary of chosen products. The table above highlights the key formats and pore sizes to help you compare at a glance. Use this as a quick reference when planning multi-condition experiments that require two-cell systems in a single plate.
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