Before revision: Historical development Polyaniline was discovered in the early 1860s by Lightfoot through studies on 19th century by F. Ferdinand Runge (1794-1867), Carl Fritzsche (1808-1871), John Lightfoot (1831-1872), and HenryLetheby (1816-1876) S.C. Rasmussen (2017) The Early History of Polyaniline: Discovery and Origins.
After revision: Historical development Polyaniline was discovered in the 19th century by F. Ferdinand Runge (1794-1867), Carl Fritzsche (1808-1871), John Lightfoot (1831-1872), and HenryLetheby (1816-1876) S.C. Rasmussen (2017) The Early History of Polyaniline: Discovery and Origins.