The bacterial dish is round and square.
Big, small, convex, flat.
Various styles are dizzy.
Can't tell, can't tell, can't tell!
What's the difference?How to choose?
part1
Are nest bacterial petri dishes and cell culture dishes the same thing?
It's not!The difference is huge!
In order to ensure the cell adherent effect, the culture surface of the cell culture dish is treated by vacuum plasma treatment (TC), which is more suitable for adherent cell culture.
The culture surface of the bacterial dish is untreated, making it ideal for bacterial culture after the addition of solid agar medium.
part2
Similarities and differences between existing bacterial culture dishes
Common Advantages of NEST Bacterial Petri Dishes:
l Material: Class VI (medical grade) polystyrene, high transparency.
l Structural design:
The raised vents allow for internal and external gas exchange while being designed to hold the lid against the lid and are proven to ensure low media evaporation rates.
l Packaging and sterility
Easy-to-tear aseptic composite film packaging, electron beam irradiation sterilization, sterility guarantee sal=10 -6, and sterility inspection shall not detect microorganisms.
l Nonpyrogen-free:
Endotoxin levels < 005eu/ml。
There are many different sizes of NEST bacterial dishes, the most commonly used in the laboratory are round bacterial dishes, and different sizes are suitable for different culture and screening throughput.
In addition to the round bacterial dish, the other three specifications of the NEST bacterial Petri dish have been structurally modified on the basis of the round bacterial Petri dish to adapt to different application scenarios and can be used for targeted bacterial culture.
l Contact dish: The bottom of the contact dish is raised upwards to facilitate the contact between the agar medium and the sampling surface. And there is a clear counting separation at the bottom to facilitate subsequent colony counting.
l Locking bacteria dish: The lower end of the lid and the upper end of the bottom are equipped with three locking structures that fit each other, which can be combined with each other after being gently rotated. Most bacterial cultures are inverted, and locking the dish is a good way to prevent contamination caused by accidentally taking out the bottom of the dish. This latching design is also ideal for the transport of solid media.
l Dividing dish: On the basis of 90mm bacterial dish, the design of separating is added, which can add different media or inoculate different colonies in the compartment for culture, which is very flexible and versatile.
part3
Advantages of NEST's new bacterial Petri dishes
l Deep bacterial dishes:
As the incubation time increases, the water in the medium gradually evaporates, and the weight of the solid medium decreases at a rate of approximately 20% every 24 hours, making it difficult for bacteria to continue to proliferate. The bottom depth of the 100mm bacterial dish has been increased from 20mm to 25mm, which can add more solid medium and is more suitable for long-term bacterial culture.
l Square bacterial dish:
The square design can be well matched with the grasping of the manipulator, which is the most suitable for the bacterial dish of automatic instruments, and the bottom surface is scaled, which is suitable for automatic counting.
Through the comparison of capacity, it can be seen that the deep bacterial dish with the same diameter can carry a larger volume of medium than the existing bacterial Petri dish of other specifications, which is suitable for filling larger media. Whereas, square bacterial dishes have a larger culture area.
part4
Unique design of bacterial Petri dishes
l The bottom and lid structure of round bacterial dishes (including plain, divided, contact, deep and locked) form a stackable design.
l The bottom of the square bacterial dish has raised dots around the bottom for non-slip and easy positioning of the automation equipment.
L Nest provides a variety of packaging specifications such as small packaging and double-layer packaging, and also provides customized services.
part5
Directions for use
Use upside down
l The actual bottom diameter of the bacterial dish is slightly smaller than the nominal diameter, and the capacity in ** is an estimate.
l There is water evaporation during the incubation process, if not inverted, the water will condense from the lid to the container, which will cause the colonies to mix, make the microbial growth uneven, and interfere with the counting.
l Inversion can reduce the evaporation rate, prevent the medium from drying out, and create an environment conducive to the normal growth of microorganisms.
Contaminants may be deposited on the lid, and inversion reduces the risk of contaminants coming into contact with the culture. Bacteria