FLUORESCENCE STUDY ON TRYPTOPHAN–POTASSIUM IODIDE INTERACTION

Authors

  • H.A. Shilajyan Chair of Physical and Colloids Chemistry, YSU, Armenia
  • K.R. Grigoryan Chair of Physical and Colloids Chemistry, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:B/2018.52.2.075

Keywords:

tryptophan, potassium iodide, fluorescence quenching, thermodynamic parameters

Abstract

Interaction of tryptophan (Trp) with potassium iodide in aqueous and DMSO containing solutions at 293 and 303 K temperatures has been studied using fluorescence spectroscopy method. It has been shown that Trp fluorescence quenching by KI depends on I– ion mobility, which is affected by the changes in temperature and viscosity of the environment. The physicochemical characteristics of binding process (Kb, n, ΔH, ΔS and ΔG) have been determined in H2O and DMSO containing solutions.

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Published

2018-07-01

How to Cite

Shilajyan, H.A., and K.R. Grigoryan. 2018. “FLUORESCENCE STUDY ON TRYPTOPHAN–POTASSIUM IODIDE INTERACTION”. Proceedings of the YSU B: Chemical and Biological Sciences 52 (2 (246):75-79. https://doi.org/10.46991/PYSU:B/2018.52.2.075.

Issue

Vol. 52 No. 2 (246) (2018)

Section

Chemistry

License

Copyright (c) 2018 Proceedings of the YSU

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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