For his latest hygiene experiment, Aicher decided to place a petri dish on the ground for various time limits ranging from zero seconds to one minute. He then incubated the samples in a cultivator ...

Use the sterile petri dish to collect fluid from pustules on the cow's udder. To create a vaccine that will protect you against a pathogen, you usually begin with that pathogen and alter it in ...

Nicholas Aicher, a senior quality control analyst, conducted a petri dish experiment to scientifically assess how quickly bacteria transfer to food dropped on the ground, reported the New York Post.

It is therefore important that any petri dish or agar used is sterilised before use, and that aseptic techniques are used to inoculate the plates. An inoculating loop can be used to transfer bacteria.