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...Microscopy research published online january in scires http www scirp org journal mr dx doi applications of bacteriology mini mishra pratima chauhan centre environmental studies department botany university allahabad india physics received september accepted copyright by authors and scientific publishing inc this work is licensed under the creative commons attribution international license cc creativecommons licenses abstract bacteria are smallest primitive simple unicellular prokaryotic microscopic organisms but these cannot be studied with naked eyes because their minute structure therefore search for information about composition bacterial cells cell biologist used light microscopes a numerical aperture using wavelength m separa tion there still certain cellular structures that seen through them electron microscope improved types which can incorporated to improve resolving power hence playing crucial role field keywords afm sem tem introduction get acquainted world like small very e...