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Related Concept Videos

Channel Rhodopsins01:11

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...

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Spatiotemporal Control of Protein Activity through Optogenetic Allosteric Regulation
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Spatiotemporal Control of Protein Activity through Optogenetic Allosteric Regulation

Published on: October 4, 2024

Programmable spatial filtering with bacteriorhodopsin.

M Storrs, D J Mehrl, J F Walkup

    Applied Optics
    |November 25, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Researchers developed a programmable spatial-filtering system using bacteriorhodopsin (BR) film. This optically addressed spatial light modulator enables dynamic filtering operations with computer-controlled light.", Enhanced_Abstract=default_api.SeocontentEnhancedAbstract(Area_of_Science=[

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    Mapping the Cellular Distribution of an Optogenetic Protein Using a Light-Stimulation Grid

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    Area of Science:

    • Optics and Photonics
    • Biophysics
    • Materials Science

    Background:

    • Spatial filtering is crucial for image processing and optical systems.
    • Existing spatial light modulators can be complex or limited in programmability.
    • Bacteriorhodopsin (BR) films offer unique photo-responsive properties for optical applications.

    Purpose of the Study:

    • To introduce a novel programmable spatial-filtering system.
    • To utilize bacteriorhodopsin (BR) film as an optically addressed spatial light modulator.
    • To demonstrate dynamic spatial filtering capabilities.

    Main Methods:

    • Development of a system employing bacteriorhodopsin (BR) film.
    • Illumination of the BR film with a single wavelength of light.
    • Utilizing a computer-controlled mirror scanning system to write filter functions.
    • Implementing time-varying filter functions.

    Main Results:

    • Proof-of-principle experimental demonstration of the system.
    • Successful execution of several elementary spatial filtering operations.
    • Validation of BR film as a programmable spatial light modulator.

    Conclusions:

    • The described system offers a new approach to programmable spatial filtering.
    • Bacteriorhodopsin (BR) film is a viable material for optically addressed spatial light modulation.
    • The system shows potential for various optical signal processing applications.