Editing Ultramicroscope (section)

==History==
In 1902, the ultramicroscope was developed by [[Richard Adolf Zsigmondy]] (1865–1929) and [[Henry Siedentopf]] (1872–1940), working for [[Carl Zeiss AG]].<ref name=zmond>{{cite web| first1=Richard Adolf |last1=Zsigmondy |title=Properties of Colloids – Nobel Lecture |work=Nobel Lectures, Chemistry 1922-1941 |date=December 11, 1926 | url=http://nobelprize.org/nobel_prizes/chemistry/laureates/1925/zsigmondy-lecture.html | location=Amsterdam | publisher=Elsevier Publishing Company |url-status=live |archive-url= https://web.archive.org/web/20230530134944/https://www.nobelprize.org/prizes/chemistry/1925/zsigmondy/lecture/ |archive-date= May 30, 2023 }}</ref> Applying bright sunlight for illumination they were able to determine the size of 4 nm small [[nanoparticle]]s in [[cranberry glass]]. Zsigmondy further improved the ultramicroscope and presented the immersion ultramicroscope in 1912, allowing the observation of suspended nanoparticles in defined fluidic volumes.<ref name=mappes12>{{cite journal |doi=10.1002/anie.201204688|pmid=23065955|title=The Invention of Immersion Ultramicroscopy in 1912-The Birth of Nanotechnology?|year=2012|last1=Mappes|first1=Timo|last2=Jahr|first2=Norbert|last3=Csaki|first3=Andrea|last4=Vogler|first4=Nadine|last5=Popp|first5=Jürgen|last6=Fritzsche|first6=Wolfgang|journal=Angewandte Chemie International Edition|volume=51|issue=45|pages=11208–11212}}</ref><ref name="timmap">{{cite news |last1=Mappes |first1=Timo |title=IMMERSIONSULTRAMIKROSKOP nach R. Zsigmondy von Winkel-Zeiss, Göttingen |url=https://www.musoptin.com/item/immersionsultramikroskop-nach-r-zsigmondy-winkel-zeiss-32607-1930/ |publisher=Prof. Dr.-Ing. Timo Mappes |date=20 November 2017}}</ref> In 1925, he was awarded the Nobel Prize in Chemistry for his research on colloids and the ultramicroscope.

Later the development of [[electron microscope]]s provided additional ways to see objects too small for light microscopy.