Ehrlich: Paul

Paris by the French scientist Paul-Emile Lecoq de Boisbaudran. Its isolation was made possible by the development of ion-exchange separation in the 1950s. Dysprosium belongs to a series of elements called rare earths, lanthanides, or 4f elements. The occurrence of dysprosium is low 4.5 ppm (parts per million), that is, 4.5 grams per metric ton in Earth s crust, and 2 x 10 7 ppm in seawater. Two minerals that contain many of the rare earth elements (including dysprosium) are commercially important mon-azite (found in Australia, Brazil, India, Malaysia, and South Africa) and bast-nasite (found in China and the United States). As a metal, dysprosium is reactive and yields easily oxides or salts of its triply oxidized form (Dy3+ ion). 

Kaltsoyannis, Nikolas, and Scott, Peter (1999). The f Elements. New York Oxford 

Paul Ehrlich made notable contributions in several areas of medicine including selective dye staining of cells, immunology, cancer research, and chemical therapy of infectious diseases. 

Ehrlich was born in Strehlen, Germany, and attended school in Breslau where an older cousin, Carl Weigert, was a physician at a local hospital. Weigert was researching cell staining with synthetic dyes, a procedure that makes cells more visible under a microscope. Weigert demonstrated the technique for his teenage cousin who was immediately fascinated by the process. 

German chemist and bacteriologist Paul Ehrlich, corecipient, with Ilya Ilyich Mechnikov, of the 1908 Nobel Prize in physiology or medicine, in recognition of their work on immunity.  

---

Ecgonine, 5 Ectylurea, 221 Ehrlich, Paul, 1, 121, 223 Eisleb, Otto, 281 Eneamine, as protecting group, 176... 

Eastman, George, 298 Ehrlich, Paul, 296 Einstein, Albert, 85, 246 Empedocles of Agrigentum, 9 Epicurus, 10... 

EHRLICH, PAUL (1854-1915). A native uf Silesia, Enrlich is considered the founder of the science of chemotherapy, or the treatment of diseases by chemical agents. He did fundamental work on immunity, which earned him the Nobel prize in medicine in 1908. and also developed the famous neoarsphenamine (salvarsan or 606) treatment for syphilis (1910). which was no) improved upon until the discovery of penicillin. 

Figure 1.4. Paul Ehrlich. Paul Ehrlich was a German Jewish physician and scientist, who was inspired by and initially worked with Robert Koch (who discovered the causative bacterial agents of Anthrax, Tuberculosis, and Cholera). Left Ehrlich s portrait on a 200 deutschmarks bill (now obsolete).

Ehrlich, Paul, et al., Long-Term Biological Consequences of Nuclear War. Science 222,4630 (1983). 

Ehrlich, Paul, etdl. The Birder s Handbook. New York Simon and Shuster, 1988. 

---