Bio Battery

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 INTRODUCTION
A bio-battery is an energy storing device that is powered by organic compounds. Bio-Battery generates electricity from renewable fuels (glucose, sucrose, fructose, etc) providing a sustained, on-demand portable power source. When enzymes in our bodies break down glucose, several electrons and protons are released. Therefore, by using enzymes to break down glucose, bio-batteries directly receive energy from glucose. These batteries then store this energy for later use. This concept is almost identical to how both plants and many animals obtain energy. Bio battery use biocatalyst, either biomolecules such as enzymes or even whole living organism to catalyze oxidation of bio mass-based materials for generating electrical energy.

Bio Battery can be called as energy accumulated device that is motorized by organic compounds, usually being glucose, like glucose in human blood. Many electrons and protons are released due to break down of glucose by enzymes present in our body. Thus, bio batteries directly get energy from glucose by using enzymes present in a human body break down glucose. An interesting fact is that bacteria can generate electricity when a protein in their cell membranes gets in touch with a mineral surface. Shewanella oneidensis is marine bacteria that can develop electric currents when bared to heavymetals like iron and manganese. These proteins can transmit electrons transversely a membrane at a rate faster enough so that the energy produced is sufficient so that bacteria can survive. Functioning of these bacteria will help scientists in making those bio batteries that could store energy for sensors in remote environment.

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