ConductScience T75 Cell Culture Flasks, Vented (100/case)
$7.95 per unit | 100 units per pack T75 cell culture flasks with 0.2 μm vented caps and treated surface for adherent cell cultivation. Sterile, individually wrapped, 100 per case.
| Automation Level | manual |
The ConductScience T75 Cell Culture Flasks provide 75 cm² of treated polystyrene surface area for adherent cell cultivation. Each flask incorporates a 0.2 μm vented cap system that facilitates gas exchange while maintaining sterile barrier protection during cell culture operations. The treated surface chemistry enhances cell attachment and spreading for mammalian cell lines requiring adherent growth conditions.
Manufactured from optically clear polystyrene, these flasks enable direct microscopic observation of cell morphology and confluency without removal from the incubator environment. Individual sterile packaging eliminates cross-contamination risk and supports aseptic technique protocols. The 100-flask case format provides cost-effective supply management for high-throughput cell culture workflows in research and production laboratories.
How It Works
Cell culture flasks provide a controlled microenvironment that supports cellular metabolism, growth, and proliferation. The treated polystyrene surface undergoes plasma oxidation or chemical modification to introduce polar functional groups that enhance protein adsorption and subsequent cell adhesion. This surface treatment creates optimal conditions for integrin-mediated cell attachment and cytoskeletal organization.
The vented cap system incorporates a 0.2 μm hydrophobic membrane filter that allows bidirectional gas exchange while preventing microbial contamination. This design maintains optimal CO₂/O₂ ratios and pH buffering in bicarbonate-based media systems. The filter pore size effectively excludes bacteria and fungi while permitting free diffusion of respiratory gases essential for cellular respiration and metabolic homeostasis.
The 75 cm² growth surface provides sufficient area for approximately 1.5-2.0 × 10⁷ cells at confluency, depending on cell type and size. The flask geometry facilitates uniform media distribution and supports consistent cell density across the culture surface, enabling reproducible experimental conditions and scalable cell production workflows.
Features & Benefits
Automation Level
- manual
Research Domain
- Cancer Research
- Cell Biology
- Developmental Biology
- Immunology
- Pharmaceutical QC
- Toxicology
Weight
- 632.15 kg
Dimensions
- L: 30.0 mm
- W: 25.0 mm
- H: 20.0 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Surface Treatment | Treated polystyrene surface for enhanced cell attachment | Non-treated surfaces require additional coating steps | Eliminates coating protocols and reduces variability in cell attachment efficiency |
| Cap Venting System | 0.2 μm membrane filter in cap | Standard caps require manual loosening for gas exchange | Maintains sterile barrier while ensuring consistent gas exchange without user intervention |
| Optical Clarity | Clear polystyrene construction | Some alternatives use colored or translucent materials | Enables direct microscopic observation without removing flasks from incubator |
| Packaging Format | Individual sterile wrapping, 100 per case | Bulk packaging or smaller case sizes | Reduces contamination risk while providing cost-effective volume pricing |
| Surface Area | 75 cm² growth surface | Entry-level options often limited to 25-50 cm² | Provides optimal balance between cell yield and media requirements for most applications |
These T75 flasks combine treated surface chemistry with vented cap technology to provide reliable cell culture conditions. The 100-flask case format offers cost-effective supply management for laboratories with regular adherent culture requirements. Individual sterile packaging supports aseptic technique protocols while clear construction enables direct observation.
Practical Tips
Pre-warm flasks and media to 37°C before cell seeding to minimize thermal shock and improve attachment efficiency.
Why: Temperature fluctuations can affect cell viability and attachment kinetics during the critical first hours of culture.
Replace media every 2-3 days or when pH indicator shows acidification to maintain optimal growth conditions.
Why: Regular media changes prevent nutrient depletion and toxic metabolite accumulation that inhibit cell growth.
Avoid over-tightening vented caps as this can compress the membrane filter and restrict gas exchange.
Why: Proper cap positioning maintains sterile seal while ensuring adequate CO₂ equilibration for pH control.
Document passage number, seeding density, and culture duration for each experiment to ensure reproducible results.
Why: Cell behavior and gene expression patterns change with passage number and culture conditions, affecting experimental outcomes.
If cells fail to attach, check surface treatment integrity and verify media contains adequate calcium for integrin function.
Why: Cell attachment requires both appropriate surface chemistry and sufficient divalent cations for integrin-mediated adhesion.
Handle all used flasks as potentially infectious material and follow biosafety protocols for decontamination.
Why: Cell cultures may harbor pathogens or produce biological hazards requiring appropriate containment and disposal procedures.
Use consistent flask positioning in incubators to ensure uniform gas distribution and temperature control across cultures.
Why: Incubator gradients can create variability in culture conditions affecting growth rates and experimental reproducibility.
Setup Guide
What’s in the Box
- 100 T75 cell culture flasks with vented caps
- Individual sterile packaging
- Product documentation (typical)
Warranty
ConductScience provides standard quality assurance for sterile consumables with replacement guarantee for any manufacturing defects. Technical support available for application-specific protocols and troubleshooting.
Compliance
What cell density should I use for seeding T75 flasks?
Seeding density varies by cell type: typically 2-5 × 10⁵ cells for fast-growing lines like HEK293, or 5-8 × 10⁵ for slower-growing primary cultures. Aim for 70-80% confluency at harvest.
Can these flasks be used for suspension cultures?
These flasks are designed for adherent cultures with treated surface chemistry. For suspension cultures, use non-treated flasks or specialized suspension culture vessels to prevent unwanted cell attachment.
How much media should I add to T75 flasks?
Use 10-15 mL for standard adherent cultures. Lower volumes (8-10 mL) may be used for growth factor conservation, while higher volumes (15-20 mL) provide additional buffering capacity for longer culture periods.
Are these flasks compatible with automated cell culture systems?
Standard T75 dimensions and cap threading are compatible with most automated liquid handling and cell culture systems. Verify flask neck dimensions match your automation specifications.
What is the maximum passage number recommended for these flasks?
Passage limits depend on cell type, not flask specifications. Most primary cells show phenotypic changes after 10-15 passages, while immortalized lines can be passaged indefinitely with proper technique.
Can I use these flasks for co-culture experiments?
Yes, the treated surface supports co-culture applications. Consider seeding ratios and growth rates of different cell types to maintain desired population balances throughout culture.
How should I dispose of used culture flasks?
Follow institutional biosafety protocols for contaminated plasticware disposal. Autoclave or chemically decontaminate before disposal according to local regulations for biological waste.
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