If your experiment requires a 100 percent pure culture and you're using plastic Petri dishes, then its best use new dishes sterilized from the manufacturer. Do not reuse plastic Petri dishes if your experiment involves the use of live pathogens. The risk of cross-contamination is too great. R...
work after a weekend away from his lab and found a certain type of mold, Penicillium notatum, had halted the growth of Staphylococcus (staph -- a bacteria that can cause skin infections, pneumonia and some food-borne illness, among other infections) in his petri dishes. And not only did ...
as the agar will set in its container before it can be poured. Obtain sterile petri dishes and pour enough to cover the entire surface area of the plate and at least half of its depth. Avoid overfilling the plates and preferably do not allow the agar to contact the top edge ...
A drone with some petri dishes attached is making research easier on whales and scientists. HowStuffWorks takes a look.
they can be easily separated and grown in new cell culture dishes. Cell culture conditions and subculture methods vary for each cell type. Figure 2 describes the basic steps in the subculture workflow. During the whole subculture process, it is important to work in a contamination-free ...
We had a bunch of Petri dishes leftover from a science experiment, so I decided to use these in the kaleidoscope. The clear plastic circles make them a perfect match. And it turns out they make it easy to create an interchangeable kaleidoscope....
Now, 137 years later, scientists have published the first ever randomized controlled trial testing Listerine's gonorrhea claim in the medical journal Sexually Transmitted Infections. The verdict: the bad-breath mouthwash does indeed kill gonorrhea bacteria, both in petri dishes and in people's ...
We've all been there: You pull out your AirPods case, flip the top, and realize your earbuds have become very small (very expensive) petri dishes. And though you may not know how they got so dirty, you're sure that things have to change. The Apple AirPods are particularly prone to ...
Plant agar media plates were prepared by autoclaving Murashige and Skoog (MS) media (0.22% MS media with vitamins, 1.2% plant agar, 0.5% sucrose, pH 5.8) and pouring 100 ml of the media into square petri dishes with 12 cm length. The plates were allowed to cool for 1 h in a...
To grow the stem cells, scientists remove them from the blastocyst and culture them (grow them in a nutrient-rich solution) in a Petri dish in the laboratory. The stem cells divide several times and scientists divide the population into other dishes. After several months, there are millions ...