Dremel 543 and EZ544 are both carbide cutting wheels for cutting and shaping on woods, fiberglass, plastics and laminates. Do not use them on metals. For 543 the mandrel is included; for EZ544 use the EZ402 Mandrel.
After Domagk published his findings in 1935, doctors found that Prontosil could control many bacterial infections. Subsequently, other researchers developed derivatives based on the Prontosil sulfonamide group. The resulting so-called sulfa drugs revolutionized medicine and saved many thousands of lives.
The Use of Sulfanilamide in World War II The discovery of Sulfanilamide greatly affected the mortality rate during World War II. American soldiers were taught to immediately sprinkle sulfa powder on any open wound to prevent infection. Every soldier was issued a first aid pouch that was designed to be attached to the soldierâs waist belt. The first aid pouch contained a package of sulfa powder and a bandage to dress the wound. One of the main components carried by a combat medic during World War II was sulfa powder and sulfa tablets. The Discovery of Penicillin The Scottish bacteriologist Sir Alexander Fleming, (1881-1955), discovered penicillin.