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.
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.
