Hans Sachs (6 June 1877, Kattowitz (

Katowice Katowice (, ) is the capital city of the Silesian Voivodeship in southern Poland and the central city of the Katowice urban area. As of 2021, Katowice has an official population of 286,960, and a resident population estimate of around 315,000. K ...

) – 25 March 1945,

Dublin Dublin is the capital and largest city of Republic of Ireland, Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the Provinces of Ireland, province of Leinster, and is bordered on the south by the Dublin Mountains, pa ...

), was a German serologist. He was of

Jewish Jews (, , ), or the Jewish people, are an ethnoreligious group and nation, originating from the Israelites of History of ancient Israel and Judah, ancient Israel and Judah. They also traditionally adhere to Judaism. Jewish ethnicity, rel ...

ancestry.Horst Dickel, "HANS SACHS" in Gisela M. B. Holfter (ed.), ''German-speaking Exiles in Ireland 1933-1945'', Rodopi (2006), p. 184

Early life and education

Sachs studied at the universities of

Freiburg Freiburg im Breisgau or simply Freiburg is the List of cities in Baden-Württemberg by population, fourth-largest city of the German state of Baden-Württemberg after Stuttgart, Mannheim and Karlsruhe. Its built-up area has a population of abou ...

, Breslau (Wrocław) and

Berlin Berlin ( ; ) is the Capital of Germany, capital and largest city of Germany, by both area and List of cities in Germany by population, population. With 3.7 million inhabitants, it has the List of cities in the European Union by population withi ...

. He was a student and research assistant of

Paul Ehrlich Paul Ehrlich (; 14 March 1854 – 20 August 1915) was a Nobel Prize-winning German physician and scientist who worked in the fields of hematology, immunology and antimicrobial chemotherapy. Among his foremost achievements were finding a cure fo ...

. In 1900, he received his

doctorate A doctorate (from Latin ''doctor'', meaning "teacher") or doctoral degree is a postgraduate academic degree awarded by universities and some other educational institutions, derived from the ancient formalism '' licentia docendi'' ("licence to teach ...

from the

University of Leipzig Leipzig University (), in Leipzig in Saxony, Germany, is one of the world's oldest universities and the second-oldest university (by consecutive years of existence) in Germany. The university was founded on 2 December 1409 by Frederick I, Electo ...

Career

From 1905, he taught and conducted research at the University of Frankfurt. He was promoted to

professor Professor (commonly abbreviated as Prof.) is an Academy, academic rank at university, universities and other tertiary education, post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin ...

in 1907 and became an honorary professor after 1914. In 1920, he moved to

Heidelberg Heidelberg (; ; ) is the List of cities in Baden-Württemberg by population, fifth-largest city in the States of Germany, German state of Baden-Württemberg, and with a population of about 163,000, of which roughly a quarter consists of studen ...

, where he served as professor of the Institute for Immune and Serum Research and director of the scientific department of the Institute for Experimental Cancer Research. Sachs worked on investigations into the importance of lipoids for cancer immunity with Ernst Witebsky, who had been working in Heidelberg since 1925. In 1935, he was expelled from the Institute and the University as part of the

Nazi Nazism (), formally named National Socialism (NS; , ), is the far-right politics, far-right Totalitarianism, totalitarian socio-political ideology and practices associated with Adolf Hitler and the Nazi Party (NSDAP) in Germany. During H ...

campaign to purge all

Jew Jews (, , ), or the Jewish people, are an ethnoreligious group and nation, originating from the Israelites of ancient Israel and Judah. They also traditionally adhere to Judaism. Jewish ethnicity, religion, and community are highly inte ...

s from academia. He fled Germany to

Oxford Oxford () is a City status in the United Kingdom, cathedral city and non-metropolitan district in Oxfordshire, England, of which it is the county town. The city is home to the University of Oxford, the List of oldest universities in continuou ...

in 1938 and later settled in

, where he died in 1945.

Achievements

His work in improving the diagnosis of

syphilis Syphilis () is a sexually transmitted infection caused by the bacterium ''Treponema pallidum'' subspecies ''pallidum''. The signs and symptoms depend on the stage it presents: primary, secondary, latent syphilis, latent or tertiary. The prim ...

was groundbreaking. In collaboration with other scientists, he developed the Sachs-Georgi reaction, a serological test for syphilis and a precipitation reaction test known as the Sachs-Witebsky reaction.

References

External links

Brief biography from ''Who Named It?''
{{DEFAULTSORT:Sachs, Hans 1877 births 1945 deaths German immunologists German people of Jewish descent People from the Province of Silesia People from Katowice Serologists