In 1871, Friedrich Miescher, a scientist of Switzerland, firstlyseparated the complex of nucleic acid and protein named ?nuclein? fromthe pus in the bandage. His dissertation pioneered the study of nucleicacid and protein for the future.

• 1871年瑞士科学家Friedrich Miescher首次从绷带的脓液中分离出“核素”（Nuclein，核酸和蛋白的复合物），他的论文为以后研究蛋白质和核酸开创了新的一页。