Research Article | Volume: 7, Issue: 11, November, 2017

A comparative study on the antioxidant and immunomodulatory properties of curcumin conjugated gold nanospheres and free curcumin

Leichombam Mohindro Singh,  Biswajit Chakraborty,  Ramkrishna Pal,  Anupam Nath,  Sudip Pal,  Dewan Shahidur Rahman,  Sujit Kumar Ghosh,  Mahuya Sengupta   
Leichombam Mohindro Singh1, Biswajit Chakraborty1, Ramkrishna Pal1, Anupam Nath1, Sudip Pal2, Dewan Shahidur Rahman2, Sujit Kumar Ghosh2, Mahuya Sengupta1

1Department of Biotechnology,

2Department of Chemistry, Assam University, Silchar, Assam, India.

Open Access   

Published:  Nov 30, 2017

DOI: 10.7324/JAPS.2017.71108
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Abstract

Curcumin, a phenolic compound isolated from the rhizomes of the plant Curcuma longa, has been known for decades. Owing to the fact of its hydrophobic nature and rapid metabolization, it has not been used as an effective drug so far. To solve the problem of bioavailability of curcumin, gold nanoparticles (cAuNps) reduced and stabilized with curcumin have been prepared. Afterwards, study for their antioxidant defenses and its effect on oxidative stress has been implemented. Cell cytotoxicity of both cAuNps (2.91677×102 – 2.91677×1012 particles ml-1) and free curcumin (1mM-128mM) were studied by 3-(4, 5-dimethylazol-2-yl)-2, 5-diphenyl-tetrazolium bromide) (MTT) assay. From the above studies, it was found that cAuNps could ameliorate the antioxidants defenses and could quench the ROS and RNS generated in the cells more significantly compared to free curcumin. This phenomenon is due to the abstraction of H atoms from phenolic functional groups of curcumin in the nanoconjugate form. Thus, the study proposes a strategy for increasing the bioavailability of curcumin as a therapeutic agent as well as increasing its activity due to the synergistic effect of gold conjugated to it.


Keyword:     Antioxidant curcumin oxidative stress reactive oxygen species reactive nitrogen species.

Citation:

Singh LM, Chakraborty B, Pal R, Nath A, Pal S, Rahman DS, Ghosh SK, Sengupta M. A comparative study on the antioxidant and immunomodulatory properties of curcumin conjugated gold nanospheres and free curcumin. J App Pharm Sci, 2017; 7 (11): 056-063.

Copyright: © The Author(s). This is an open-access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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