Study of bacteriorhodopsin by Linear dichroism (LD) (CAT#: STEM-ST-0134-WXH)

Name: Study of bacteriorhodopsin by Linear dichroism (LD)
SKU: STEM-ST-0134-WXH
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Introduction

Bacteriorhodopsin is a protein used by Archaea, the most notable one being Halobacteria. It acts as a proton pump; that is, it captures light energy and uses it to move protons across the membrane out of the cell. The resulting proton gradient is subsequently converted into chemical energy.

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Principle

Linear dichroism (LD) or diattenuation is the difference between absorption of light polarized parallel and polarized perpendicular to an orientation axis. It is the property of a material whose transmittance depends on the orientation of linearly polarized light incident upon it. LD measurements are based on the interaction between matter and light and thus are a form of electromagnetic spectroscopy.