Exploring the microscopic eyeball of cyanobacteria: A comprehensive review

Abstract

Cyanobacteria resemble algae in that they contain chlorophyll and then photosynthesize and oxygen is released as a result. Cyanobacteria resemble bacteria in that they are Gram-negative bacteria and their wall consists of peptidoglycan and contain a primitive nucleus and do not contain chloroplasts but membranes called thylakoids that contain the chlorophyll pigment for photosynthesis. Cyanobacteria produce their own energy through photosynthesis, just like plants. Scientists from America said that they made an "energy generator" using a bottle containing bacteria and sewage, and that the efficiency of these "microbes connected to wires" reached 30%, which is equivalent to the efficiency of the best solar cells currently commercially available. The researchers explained in their study, the results of which were published in the Proceedings of the American Academy of Sciences, that it is still necessary to find a suitable metal to manufacture an important part of this small "generator", which is a cathode, which is the electrode of the electrical circuit where the process of reducing electrons occurs, as an alternative to the silver oxide that they currently use. The idea of using bacteria as a source of energy generation is not new, and through this idea, bacteria that live on natural waste can be exploited and release excess electrons through a complex mechanism of cells during this process that leads to the conversion of chemical energy into an electric current. It is expected that water purification plants will be the place for these microbial generators, as public wastewater is rich in natural materials, in addition to the fact that not only will electricity be produced there, but the water will be purified at the same time, which reduces the operating costs of these stations. However.