This tumblr's for all the great men and women of science for whom we owe our current understanding of the natural world; their achievements, their failures, and even their quirks, we celebrate them all.
For Science. For Inquiry. For Humanity.
Hemerythrin and Hemocyanin, two alternative carriers of O2 in blood
Hemerythrin is used primarily by invertebrates (marine worms, often) and hemocyanin by mollusks and crustaceans.
Hemocyanin (hemo = blood + cyanin = blue) is blue in its oxygenated form; which means that lobsters and octopuses have blue blood.
Hemerythrin (erythrin = red) is pink/purple when oxygenated.
Perhaps cooler though, is that both hemerythrin and hemocyanin are colourless when deoxygenated, unlike hemoglobin which is purple/blue (as you know, just look at your veins).
If someone does not like science, it’s only reasonable to conclude that they were deprived of Bill Nye the Science Guy as a child.
The photo above is a picture of (left to right) Fern P. Rathe, Karl August Folkers, and Edward Anthony Kaczka. Merck Pharmaceuticals Company researchers and organic chemists Fern P. Rathe, Karl August Folkers (1906-1997), and Edward Anthony Kaczka (b. 1914) were the first to isolate the antibiotic cathomycin in 1955.
Because 3,4,4,5-tetramethylcyclohexa-2,5-dien-1-one doesn’t really roll off the tongue. Well, that, and the fact that it kinda looks like a penguin.
Useful picture that would have been great to have when learning this stuff.
Good stuff to know if you’re in Organic Chemistry. ^^^
The Chemistry of Antibiotics
Recently Jonas found a tick on his shoulder. A couple of days later, a large red ring appeared around the place where the tick had been. The ring is a clear symptom of Lyme disease caused by a bacterium called Borrelia that is transferred by ticks. The outcome of Lyme disease can be very bad if not treated immediately, but if treated in an early stage with antibiotics the infection is easily wiped out. In this video we find out how the antibiotic really works, and why it kills only the bacteria.