BIOL 1090 Lecture Notes - Lecture 13: Scanning Electron Microscope, Manfred Von Ardenne, Antonie Van Leeuwenhoek
1 Mar 2016
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Cell and molecular biology: concepts & experiments by g. karp, 7th edition. Who is credited with introducing the word cell into biology: robert hooke, robert boyle, robert ci nero, robert herjavec. In 1665 micropraphia was written from looking at a cork. By the help of the microscope there is nothing so small as to escape our inquiry. robert hooke. The beginning of the branch we now call microbiology. Schleiden & schwann (1839: the cell is the structural unit of life, all organisms are composed of one or more cell types. 1855: cells can arise only by the division of a pre-existing cell. Electron microscopy became possible in 1931 by max knott and ernst ruska. This is was made possible by fixing the cell. Scanning the surface of specimen using an electron beam. Concept m. knoll (1935); manfred von ardenne 1937 invented a working system. 1st sem usage in rca laboratories in the united states by zworykin et al. in 1942.
