He was born into a family of teachers in Săveni, Dorohoi County, in the Moldavia region, and spent his childhood in his native village.
Involved in the fight against epidemics once Romania entered the war in 1916, he first headed an army corps laboratory before becoming director of a military hospital in the temporary capital Iași.
Bearing the rank of colonel, his tireless work focused on smallpox, tetanus, gas gangrene, recurrent fever and influenza, and thousands of cases of typhus.
The creator of the Iași hygiene school, he laid the basis for a specialized department and founded a research laboratory for microbiology and chemistry.
[7] Ciucă undertook numerous research visits, not only to malaria-affected areas of Europe, but also to India, China, Indochina and Korea.
These works included 98 lithographs by Honoré Daumier and engravings by Théodore Géricault, Henri de Toulouse-Lautrec, Paul Huet, Eugène Leroux [fr], Charles-François Daubigny, Édouard Manet, Jean-François Millet, Alphonse Legros, and Eugène Carrière, as well as Albrecht Dürer, Anthony van Dyck, Rembrandt, Jan Dirksz Both, Johan Jongkind, and James Ensor.