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Updated: Jun 12, 2026

Malachite Green Assay for the Discovery of Heat-Shock Protein 90 Inhibitors
07:57

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Published on: January 20, 2023

Malachite green photosensitive plates.

C Solano

    Applied Optics
    |June 18, 2010
    PubMed
    Summary
    This summary is machine-generated.

    Photoreduction in malachite green plates occurs only with ammonium dichromate. This occurs due to a weak photochemical complex between malachite green and dichromate, limiting the plates' response.

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    Area of Science:

    • Photochemistry
    • Materials Science

    Background:

    • Malachite green is a dye used in various applications.
    • Photochemical reactions are crucial for many material processes.

    Purpose of the Study:

    • To investigate the behavior of malachite green sensitized plates under irradiation.
    • To understand the role of ammonium dichromate in the photoreduction of malachite green plates.

    Main Methods:

    • Experimental study of malachite green sensitized plates.
    • Measurement of transmittance variation upon irradiation.
    • Analysis of the effect of ammonium dichromate and external electron donors.

    Main Results:

    • Photoreduction was observed only when ammonium dichromate was present.
    • External electron donors did not enhance the photochemical reaction.
    • A weak complex between malachite green and dichromate molecules was identified, which is destroyed photochemically.

    Conclusions:

    • The presence of ammonium dichromate is essential for photoreduction in malachite green plates.
    • The limited response of these plates is attributed to the photochemical destruction of a malachite green-dichromate complex.