Emile Armet de Lisle

Emile Armet de Lisle (1853–1928) was a French industrialist and chemist who helped develop the French radium industry in the early 20th century. Around the turn of the century, Armet de Lisle began to take notice of a growing market for radium products in France. Seeking to take advantage of this opportunity and leave his own mark on the family business, de Lisle established a new factory, just outside Paris, devoted to the production of radium products in 1904. This was the first radium factory in the world.

De Lisle's business was responsible for supplying the radioactive material needed by local scientists and institutions working on problems and applications of radioactivity. Among his partners was Marie Curie, whose laboratory received substantial radium material and other kinds of support from de Lisle's business. By partnering with scientists and medical professionals, de Lisle played a key role in developing a burgeoning commercial enterprise centered on the production of radium and the study and application of radioactivity.

For some time, Armet de Lisle worked as a consultant for Marie and Pierre Curie. The Curies had developed a method for extracting radium compounds from pitchblende (a radioactive ore), but the outlook of the procedure, called "fractional crystallization," was poor. Even with an abundance of pitchblende, only very minute amounts of usable radium could realistically be harvested through the tedious procedure. In 1908, Curie herself requested laboratory space in de Lisle's factory for expanding her own chemical work, a request which de Lisle granted. Meanwhile, the Curies vouched for the quality of de Lisle's products, Wickham's work marked a significant contribution to the early understanding of how radium's ability to penetrate living tissue could be used to treat illnesses. On the strength of these early discoveries, Armet de Lisle would go on to personally fund the creation of a new institution devoted to research in radiobiology, the Laboratoire biologique du radium, which officially began studies in July 1906 and was supported by a steady stream of radium material from de Lisle's factory.

Lasting impact on the sciences From the establishment of Sels de Radium until his death in 1928, de Lisle remained both an active participant in the French radium industry and a facilitator of its ties to the scientific and medical communities in France. Armet de Lisle helped strengthen communication and collaboration among scientists working on the problems of radioactivity. Most importantly, in 1904, he began to supervise and finance the publication of a journal dedicated to the topic, Le Radium. The journal eventually grew to encompass a wide variety of scientific topics broadly related to radioactivity, including radiophysics and radiochemistry, and gained the support of prominent scientists including Marie Curie, Ernest Rutherford, and Henri Becquerel.

Armet de Lisle's funding and subsequent supplying of the Laboratoire biologique du radium was an important contribution to early French radio-chemistry and medicine, as the institute's research program helped to establish the foundational understanding required for the successful application of radioactivity to medicine. His business would also develop into the dominant manufacturer of equipment for the greater French medical community. Historian of science Soraya Boudia has written that “indeed he became one of the most important protagonists of radium therapy in France”.

Armet de Lisle played a significant role in developing Marie Curie's Institut du Radium (today the Curie Institute). In 1912, Curie, in a summary of the value of her laboratory's property, placed the value of the first gram of radium she had accumulated at one million francs. A portion of this material could be accounted for by the contributions of de Lisle's factory. With only a tenth of the radium's value being lost in payments to de Lisle and other expenses associated with procuring the ore, Curie had gained sufficient financial resources to fund the continued work and development of the Institut du Radium, which was established in collaboration between the University of Paris and Institut Pasteur in 1909. Curie envisioned the Institut as a driving force not only for the radium industry but also as a hub for French scientists carrying out bio-medical studies with radioactive substances. De Lisle supported the Institut persistently until his death in 1928.