Caplugs® Evergreen
0.30 mL Microplates, PP, Natural — 290-8355-03V | 10/Box | Caplugs® Evergreen
0.30 mL Microplates, PP, Natural — 290-8355-03V | 10/Box | Caplugs® Evergreen
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96-Well Conical (V-Bottom) Microplates, 0.30 mL Well Volume, PP, Natural — 290-8355-03V | 10/Box (100/Case)
| Quick Reference — 290-8355-03V | |
|---|---|
| Well Format | 96-well SBS/ANSI |
| Bottom | Conical (V-Bottom) |
| Well Volume | 0.30 mL |
| Material | Polypropylene (PP) |
| Color | Natural |
| DMSO Compat. | ✓ All concentrations |
| Autoclave | ✓ Compatible |
| vs PS V-bottom | PP: DMSO + autoclave + solvent; PS (290-8116-01V): aqueous |
| Pack Size | 10/Box (100/Case) |
| Price | $120.33 / Box ($1.2033 / plate) |
Technical Narrative
The Caplugs® Evergreen is a 96-well PP V-bottom microplate — combining complete apex-concentration pelleting with full DMSO compatibility and autoclave capability. The V-bottom concentrates every cell, bead, or particle at the single geometric apex of the well for 100% pellet recovery and complete supernatant removal — the defining requirement for acoustic dispensing source plates, compound pelleting assays, and organic-phase separation. PP resists DMSO at all concentrations, making this the standard choice for pharmaceutical compound library source plates in Echo and Mosquito acoustic dispensing programs where DMSO compound stocks cycle repeatedly through the same plate.
PP's autoclave compatibility enables pre-sterilized V-bottom plate supply for regulated pelleting assays and PP's broad organic solvent resistance — chloroform, hexane, ethyl acetate — makes it the 96-well format for liquid-liquid extraction protocols where the organic phase contacts the well. PP's resistance to concentrated acids and alkalies extends V-bottom applicability to acid precipitation, alkaline lysis, and pH-extreme sample prep protocols that would degrade PS plates.
At $120.33 per Box of 10 — $1.2033 per plate — the PP V-bottom carries a modest premium over PS (290-8116-01V, $120.33/box) justified for DMSO, acoustic dispensing, organic solvent, and autoclave workflows.
Technical Specifications — Caplugs® Evergreen
| Specification | Value |
|---|---|
| Part Number | |
| Caplugs Item # | 290835503VE1 |
| Well Format | 96-well SBS/ANSI |
| Bottom | Conical (V-Bottom) |
| Well Volume | 0.30 mL |
| Material | Polypropylene (PP) |
| Color | Natural |
| DMSO Compat. | ✓ All concentrations |
| Autoclave | ✓ Compatible (121°C / 15 psi) |
| vs PS variant | 290-8116-01V (PS): standard aqueous; this PP: DMSO + solvent + autoclave |
| Pack Size | 10/Box (100/Case) |
| BPA/Phthalate | BPA-free; no phthalate plasticizers |
| Country of Origin | Made in U.S.A. (California) |
PP V-Bottom Workflow Compatibility — DMSO, Solvent & Autoclave
PP V-bottom plates extend complete-pelleting and sample-recovery applications to chemically demanding matrices:
| Application | Assay / Use | Notes |
|---|---|---|
| DMSO compound pelleting | Complete pellet recovery of compound-treated cells | PP + V-bottom: DMSO tolerance + apex concentration |
| Acoustic dispense source (PP V) | Compound source plate for acoustic dispenser | PP V-bottom for DMSO acoustic dispensing with complete recovery |
| Blood typing (harsh buffer) | ABO/Rh with detergent or solvent-containing reagents | PP resists reagent additives that stress PS RBC assay plates |
| Protein pellet recovery | Protein precipitation from DMSO-containing samples | V-bottom apex + PP chemical resistance for solvent-phase pellet |
| Bead recovery (solvent matrix) | Magnetic bead pull-down from DMSO or alcohol matrix | PP V-bottom for complete bead recovery in non-aqueous matrices |
| Compound solubility assay | Drug compound solubility testing in organic matrices | PP V-bottom + solvent resistance for solubility screen source plates |
| Autoclave-sterile V-bottom | Pre-sterilized V-bottom for cell pelleting | PP autoclave-compatible — sterile V-bottom for regulated assays |
| Organic phase separation | Liquid-liquid extraction in 96-well V-bottom | PP resists chloroform, hexane for organic/aqueous phase separation |
PP V-bottom is the standard source plate material for acoustic dispensers handling DMSO compound stocks — PP resists DMSO degradation that limits PS source plate lifetime. For standard aqueous blood typing and crossmatch, PS V-bottom (290-8116-01V) is cost-effective.
Chemical Resistance — Polypropylene (PP)
PP: full DMSO compatibility, autoclave, and broad organic solvent resistance.
| Reagent / Condition | Compatibility |
|---|---|
| DMSO (all concentrations) | ✓ Excellent — key advantage over PS |
| Aqueous buffers | ✓ Excellent |
| Short-chain alcohols | ✓ Excellent |
| Dilute acids / alkalies | ✓ Excellent |
| Chloroform / hexane (brief) | ✓ Good |
| Detergents (RIPA, NP-40) | ✓ Good |
| Autoclave (121°C / 15 psi) | ✓ Compatible |
| Storage at -20°C / -80°C | ✓ Suitable |
Laboratory Applications
Serves pharmaceutical compound library management programs using PP V-bottom source plates for Echo/Mosquito acoustic dispensing; drug discovery programs pelleting compound-treated cells from DMSO formulations; proteomics programs running organic-phase protein precipitation; forensics and toxicology programs performing liquid-liquid extraction in 96-well V-bottom format; blood banking programs requiring autoclave-sterilized V-bottom plates; and any V-bottom workflow involving DMSO or organic solvents.
U.S. Manufacturing, Quality & Institutional Procurement
Every Caplugs® Evergreen lot is precision-molded at our California manufacturing facility and subject to rigorous dimensional inspection and material purity verification. We supply reference laboratories, hospital systems, biotech firms, and federal procurement offices under institutional pricing programs with blanket-order support and same-day shipping on stocked inventory. Request a sample below to validate before committing to volume.
Frequently Asked Questions — Caplugs® Evergreen
Is PP V-bottom compatible with acoustic dispensers (Echo, Mosquito)?
Yes. PP V-bottom plates are the recommended source plate format for acoustic liquid dispensers handling DMSO compound stocks. The V-bottom apex geometry maximizes compound recovery at small dispensed volumes (100 nL–10 µL), and PP resists the DMSO carrier solvent across the full compound library cycling lifetime — PS source plates can develop micro-cracks and dimensional drift under repeated DMSO exposure. Confirm your dispenser's source plate specification before bulk ordering.
When should I use PP V-bottom over PS V-bottom (290-8116-01V)?
Choose PP when: DMSO is present at >0.5%; acoustic dispensing of DMSO compound stocks requires repeated source plate cycling; organic solvent extraction (chloroform, hexane) is part of the protocol; autoclave sterilization is required. PS V-bottom (290-8116-01V) is the cost-effective choice for standard blood typing, crossmatch, and aqueous cell pelleting without DMSO.
Are PP V-bottom plates BPA-free and autoclave-compatible?
Yes to both. Virgin PP, no BPA, no phthalates. Autoclave-compatible at 121°C / 15 psi.
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