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    • M Dutta Choudhury

      Articles written in Journal of Biosciences

    • Volume 5 Issue 2 June 1983 pp 163-166

      Effect of sealing on the incorporation of pyrene in goat erythrocyte ghosts — A fluorescence study

      P Nandy M Dutta Choudhury P Chakrabarti

      More Details Abstract Fulltext PDF

      The incorporation of pyrene within the membrane interior of goat erythrocyte ghost has been estimated from its fluorescence spectrum. The excimer to monomer fluorescence intensity ratio of embedded pyrene is a function of the fluidity of its environment and the magnitude of its incorporation. Our study shows that this ratio is considerably less (30%) in a pre-sealed ghost than in the non-sealed ghost revealing that the site of incorporation of the probe is indeed the hydrophobic interior of the membrane; as in the later case, the probe has access to the membrane interior from both sides of the membrane. Our study on kinetics of molecular exchange indicates a very fast (of the order of seconds) transfer rate of pyrene from probed to unprobed erythrocyte ghosts through the aqueous phase rather than actual fusion of the membranes.

  • Journal of Biosciences | News

      Forthcoming Special issue.


    • To trigger further research on plant mitochondria, the Journal of Biosciences is bringing out a special issue titled "Plant Mitochondria: Properties and Interactions with Other Organelles".


      Plant mitochondria are quite distinct and have unique features, such as a cyanide-insensitive alternate pathway. They also interact with chloroplasts to optimize photosynthetic carbon assimilation.


      Submissions are welcome until 30 July 2023. The contributions can be original articles, short communications, reviews, or mini-reviews on any topic related to plant mitochondria.


      Authors can submit their articles online at https://www.editorialmanager.com/jbsc/default2.aspx

      Posted on April 12, 2023
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      Posted on July 25, 2019

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