What is the origin of Madame Curie's three grams of radium?

Madame Curie's three grams of radium, the first gram was extracted by herself; The second is Mrs. maloney, an American journalist, who runs around among American women for promotion and is donated to her by the American public. The third gram of radium was also donated by the American public. Madame Curie, as the discoverer of radium, was not only not as rich as the American journalists inferred, but also so poor. It is precisely because Madame Curie did not take the patent right of radium for herself, but dedicated it to all mankind.