Antioxidant properties of water-soluble phthalocyanines containing quinoline 5-sulfonic acid groups

Authors : Armağan GÜNSEL, Esma Hande ALICI, Ahmet Turgut BİLGİÇLİ, Gülnur ARABACI, Meryem Nilüfer YARAŞIR

Pages : 1030-1039

View : 18 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In the present study, the antioxidant properties of peripherally and nonperipherally water-soluble tetra insert ignore into journalissuearticles values(quinoline 5-sulfonic acid); substituted metal-free insert ignore into journalissuearticles values(1,2);, Zninsert ignore into journalissuearticles values(II); insert ignore into journalissuearticles values(3, 4);, Coinsert ignore into journalissuearticles values(II); insert ignore into journalissuearticles values(5, 6);, and Mninsert ignore into journalissuearticles values(III);Cl insert ignore into journalissuearticles values(7, 8); phthalocyanine insert ignore into journalissuearticles values(Pc); derivatives were reported. In order to determine the antioxidant properties of the Pc compounds, three different commonly known antioxidant methods were used: DPPH insert ignore into journalissuearticles values($\alpha $,$\alpha $-diphenyl-$\beta $-picrylhydrazyl); radical scavenging, ferrous ion chelating, and reducing power assays. Compound \textbf{6} showed the best DPPH activity among the other tested compounds except for the standards. The ferrous ion chelating IC$_{50\, }$value of compound 7 was nearly as good as that of the EDTA standard. The reducing power activity results indicated that the tested Pc compounds were as sensitive as standard reducing agents such as butylated hydroxytoluene and ascorbic acid. Overall, all tested compounds showed good antioxidant properties and it may be suggested that they could be used as new positive controls for reducing power assays in the future works.
Keywords : Water soluble, quinoline, phthalocyanine compounds, antioxidant activity