Career
He is remembered for his work in the field of microbiology. With Joaquín Albarrán (1860-1912) he performed a series of tests in an attempt to find an antidote to the colon bacillus. In 1912 with biologist Edouard Dujardin-Beaumetz (1868-1947), he studied the effects of bubonic plague in two Alpine marmots during hibernation.
Reportedly, the marmots were able to survive 61 & 115 days after being injected with the disease.
In 1911 Mosny reported the first successful embolectomy, a direct arterial surgical procedure that was performed on the femoral artery.