This is a video that a friend made that shows, very clearly, how to pour an agarose gel, load the samples and run it. I especially like the way he used a bit of time lapse photography to show the dyes separating as the gel ran.
More like this
Over this past summer I saw Dirk Görlich give a talk about how the multitude of FG repeats found within the nuclear pore complex (NPC), form a gel like matrix. This "elastic hydrogel" acts as the major barrier within the NPC.
Yesterday, the U.S. Food and Drug Administration issued a strong recommendation to citizens of this country: Stop drinking anti-itch gels. They're meant to go on your skin.
Ethidium is a dye that's used in molecular biology to allow DNA to be visualized. Regular DNA isn't colored; it absorbs ultraviolet but not visible light, so you need to use tricks like making the DNA radioactive (which makes it pretty easy to spot), or using dyes that selectively bind to DNA.
In a recent New York Times article, Celia Dugger reports on encouraging results from two studies on interventions that help women in South Africa and Malawi reduce their risk of HIV infection.
This is really neat! I blogged about it.
Some neuroscientists from my university will be visiting monks at the monastery of the Dalai Lama in Dharamsala, India, next month to teach them about western scientists and how they learn about the brain and mind. They've asked students and postdocs to create little movies like this about their own research. This video by your colleague is especially well done, very clear and patiently explained. I find it quite inspiring... I may have to break out a video camera in the lab, myself!
thanks Laura!
The author of this video has some other nice ones too, with useful topics like using and calibrating micropipettors. Good stuff!