Petri dishes are shallow, circular, flat-bottomed laboratory tools used for the cultivation and observation of microorganisms, such as bacteria, fungi, and algae.
Petri dishes are typically made of glass or plastic, with the plastic versions being more common due to their convenience and lower cost. They come in a variety of sizes, ranging from small dishes with a diameter of a few centimeters to larger dishes with a diameter of several tens of centimeters.
The bottom of the Petri dish is typically coated with a nutrient-rich agar or gelatinous substance, which provides a suitable environment for the growth of microorganisms. The agar also serves to immobilize the microorganisms, allowing them to form colonies on the surface of the dish.
Petri dishes are used in a variety of laboratory settings, including clinical microbiology, research laboratories, and educational settings. In clinical microbiology, they are used to culture and identify microorganisms responsible for infectious diseases. In research laboratories, they are used to study the growth and behavior of microorganisms and to develop new techniques for their control. In educational settings, they are used to teach students about microbiology and basic laboratory techniques.
+86-13706571711