Scientific Contributions
By bombarding matter with particles in the cyclotron, radioactive isotopes such as carbon-14, were generated. Using carbon-14, the order of events in biochemical reactions could be elucidated, showing the precursors of a particular biochemical product, revealing the network of reactions that constitute life. Kamen is credited with confirming that all of the oxygen released in photosynthesis comes from water, not carbon dioxide. He also studied the role of molybdenum in biological nitrogen fixation, the biochemistry of cytochromes and their in photosynthesis and metabolism, the role of iron in the activity of porphyrin compounds in plants and animals, and calcium exchange in cancerous tumors.
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“In the domain of Political Economy, free scientific inquiry meets not merely the same enemies as in all other domains. The peculiar nature of the material it deals with, summons as foes into the field of battle the most violent, mean and malignant passions of the human breast, the Furies of private interest.”
—Karl Marx (1818–1883)