0.37 mL Round-Bottom 8-Well PS Strips, Sterile — SBS-Compatible Microplate Format (222-8082-01R)
These sterile, 8-well round-bottom strips from Caplugs® Evergreen offer 0.37 mL per well in optically clear polystyrene (PS), supplied 1200/Bag (150 strips × 8 wells) for flexible, low-waste partial-plate workflows. Each strip is designed to seat in any standard SBS-format 96-well plate frame, so analysts can load only the strips required for a given run — conserving reagents and samples on low-throughput days without sacrificing compatibility with plate readers, multichannel pipettes, or automated liquid handlers. The U-shaped round-bottom well geometry is ideal for suspension cell culture, serial dilution panels, and mixed-volume liquid assays.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 222-8082-01R |
| Format | 8-Well Strip |
| Well Bottom | Round (U-shaped) |
| Well Volume | 0.37 mL per well |
| Material | Polystyrene (PS) |
| Color | Natural |
| Sterility | Sterile |
| Frame Compatibility | Standard SBS 96-well plate frame |
| Pack Size | 1200/Bag (150 strips × 8 wells) |
| BPA / Phthalate / Latex | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
Applications
- Partial-plate assay setup: Load only the number of strips needed for a run — eight strips in one frame equals a full 96-well footprint, or use fewer to match actual sample volume.
- Suspension cell culture: The U-shaped round bottom supports lymphocyte, NK-cell, and other suspension-based cell assays in incubator-compatible strip format.
- Serial dilution panels: Dedicate one strip per sample and pipette dilutions down the eight wells for efficient, organized titration work.
- Low-throughput plate reader runs: Strips seated in an SBS frame read normally on standard 96-well plate reader adapters without any hardware modification.
- Multichannel pipetting: The 8-well format aligns directly with standard 8-channel pipettes for fast, uniform transfers between strips.
- Reagent staging and QC wells: Use individual strips as multi-well reagent troughs or as dedicated positive/negative control rows isolated from test strips.
Compatibility
These 8-well strips fit any standard SBS-format 96-well plate frame, making them a direct, flexible alternative to full 96-well microplates for labs that do not consistently run a full plate. Because the loaded frame presents the same footprint as a conventional microplate, these strips are compatible with multichannel pipettes, robotic liquid handlers, and plate readers calibrated for the SBS 96-well standard. Users running low-throughput days can populate only the strips needed, then read the entire frame without reconfiguring instrument software.
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline (pH 4–10) | Excellent |
| Cell culture media (RPMI, DMEM) | Excellent |
| Formalin (10% NBF, cell fixation) | Excellent |
| DMSO (<1%) | Good — standard assay concentrations |
| Detergents (Tween-20, Triton X-100) | Good — standard assay concentrations |
| Methanol (<100%) | Limited — short-term contact only; avoid prolonged exposure |
| Acetone / chloroform | Not compatible — dissolves PS |
Quality & Procurement
Made in USA, these Caplugs® Evergreen microplate strips are manufactured from FDA-compliant, BPA-free, phthalate-free, latex-free polystyrene resin under rigorous quality management standards. The optically clear PS delivers low autofluorescence for reliable absorbance and fluorescence plate reader results. LabSupplies.com is an authorized Caplugs® Evergreen dealer, shipping from USA inventory — typically the same business day for stocking items — with tiered pricing available for high-volume, institutional, and grant-funded accounts.
Frequently Asked Questions
Will these strips fit my existing 96-well plate frames and plate reader?
Yes — the strips are designed to seat in any standard SBS-format 96-well plate frame. Once loaded in a frame, they present the same footprint as a conventional 96-well microplate and are read normally by plate readers configured for that standard.
Why choose 8-well strips over a full 96-well plate?
On low-throughput days, strips let you load only the wells you actually need, reducing reagent and sample consumption. You avoid wasting the unused wells of a full plate while retaining all the instrument compatibility of the SBS footprint.
Are these strips sterile, and is the sterility suitable for cell culture?
Yes — part number 222-8082-01R is supplied sterile, making the strips appropriate for suspension cell culture and other cell-based assays that require a clean-room-processed surface.
Can I use organic solvents such as acetone or DMSO in these wells?
DMSO is compatible at concentrations below 1%, which covers most standard assay conditions. Acetone and chlorinated solvents will dissolve polystyrene and must not be used. For high-solvent workflows, a polypropylene strip format would be a more appropriate choice.