ConductScience Petri Dishes 90mm, Sterile (Case of 10)
$58.00 per unit | 10 units per pack Bulk pricing: Case of 10 at $580.00 ($58.00 per unit)
The ConductScience Petri Dishes 90mm, Sterile are standard laboratory culture dishes manufactured from crystal-clear polystyrene for optimal visualization of microbial growth and cellular cultures. These sterile, non-pyrogenic dishes provide a controlled environment for bacterial cultivation, fungal isolation, antimicrobial susceptibility testing, and cell culture applications. The 90mm diameter represents the industry standard size, ensuring compatibility with standard incubators, microscopes, and automated colony counting systems.
Each dish is gamma-irradiated to achieve sterility and packaged to maintain aseptic conditions until use. The transparent polystyrene construction allows for direct microscopic observation without removing samples from the culture environment, while the standard dimensions ensure consistent results across experimental protocols and facilitate data comparison between laboratories.
How It Works
Petri dishes function as sterile containment vessels that provide a controlled microenvironment for microbial growth or cell culture. The flat, circular design with raised edges creates an enclosed space when covered, maintaining humidity while allowing gas exchange through the slight gap between dish and lid. This configuration prevents contamination while supporting aerobic organism growth.
The polystyrene material is optically clear in the visible spectrum, enabling direct microscopic observation at magnifications up to 400x without sample transfer. The smooth surface provides uniform substrate contact for adherent cells, while the standardized 90mm diameter ensures consistent agar volume (typically 15-20mL) for reproducible culture conditions across experiments.
Features & Benefits
Research Domain
- Analytical Chemistry
- Cell Biology
- Environmental Monitoring
- Food Science
- Microbiology
- Pharmaceutical QC
Weight
- 632.15 kg
Dimensions
- L: 118.2 mm
- W: 98.5 mm
- H: 78.8 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Material Construction | Crystal-clear polystyrene | Standard polystyrene may have optical distortions | Enhanced microscopic visualization reduces analysis errors and improves documentation quality. |
| Sterilization Method | Gamma-irradiated sterile | Non-sterile dishes require autoclave preparation | Ready-to-use format saves preparation time and ensures consistent sterility. |
| Size Standard | 90mm diameter standard | Various sizes available from 35-150mm | Standard size ensures compatibility with existing equipment and protocols. |
| Packaging | Individual sterile packaging | Bulk packaging may compromise sterility | Maintains sterility until use and reduces contamination risk during handling. |
These petri dishes provide the standard 90mm format with gamma sterilization and crystal-clear polystyrene construction. The sterile, ready-to-use design offers convenience for routine microbiology and cell culture applications requiring consistent optical clarity.
Practical Tips
Allow agar medium to cool to 45-50°C before pouring to prevent dish warping.
Why: Excessive heat can deform the polystyrene and create uneven culture surfaces.
Store unopened dishes in original packaging at room temperature away from direct sunlight.
Why: UV exposure can degrade polystyrene and compromise material integrity over time.
Always incubate dishes inverted (agar side up) to prevent condensation contamination.
Why: Water droplets can carry contaminants and disrupt colony morphology assessment.
Dispose of used dishes according to biological waste protocols after appropriate decontamination.
Why: Cultured organisms may pose biohazard risks requiring proper inactivation before disposal.
Label dishes on the bottom edge to avoid interference during microscopic observation.
Why: Labels on lids can create shadows or obstruct viewing areas during colony examination.
If agar pulls away from dish edges, ensure medium pH is between 6.8-7.2 before pouring.
Why: pH extremes can affect agar-plastic adhesion and create air gaps that harbor contaminants.
Setup Guide
What’s in the Box
- 500 sterile petri dishes (90mm diameter)
- Individual protective packaging (typical)
- Lot-specific documentation (typical)
Warranty
ConductScience provides standard quality assurance for sterility and material integrity. Technical support available for application-specific questions and protocol optimization.
Compliance
What sterilization method is used and what organisms does it eliminate?
Gamma irradiation sterilization effectively eliminates vegetative bacteria, fungi, and viruses. Consult product documentation for specific sterility assurance level and validation data.
Are these dishes suitable for anaerobic culture applications?
The standard design allows gas exchange and is optimized for aerobic cultures. For strict anaerobic work, use within anaerobic chambers or gas-pak systems.
What is the maximum incubation temperature these dishes can withstand?
Polystyrene construction is suitable for standard incubation temperatures up to 65°C. Consult material specifications for extended high-temperature applications.
Can these dishes be used with fluorescent staining protocols?
The clear polystyrene is compatible with most fluorescent applications. Verify specific wavelength transmission characteristics for critical fluorescence microscopy work.
What agar volume provides optimal depth for colony isolation?
15-20mL of molten agar creates approximately 4mm depth, providing sufficient nutrients while maintaining appropriate surface area for colony separation.
Are the dishes compatible with automated colony counting systems?
The standard 90mm diameter and clear bottom design are compatible with most automated counting systems. Verify specific instrument requirements for optimal performance.
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