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Synthesis and Inhibitory Activity of Schiff Base Surfactants Derived from Tannic Acid and Their Cobalt (II), Manganese (II) and Iron (III) Complexes Against Bacteria and Fungi
Faculty
Science
Year:
2013
Type of Publication:
Article
Pages:
767-777
Authors:
Negm, Nabel A, El Farargy, Ahmed F, Mohammad, Islam A, Zaki, Mohamad F, Khowdiary, Manal M
DOI:
10.1007/s11743-013-1437-5
Journal:
JOURNAL OF SURFACTANTS AND DETERGENTS SPRINGER HEIDELBERG
Volume:
16
Research Area:
Chemistry; Engineering
ISSN
ISI:000323326300013
Keywords :
Surface activity, Metal complex, Biocide
Abstract:
A series of tannic acid Schiff base surfactants and their iron, cobalt and manganese metal complexes were synthesized and their structures were elucidated by microelemental analysis, FTIR and H-1-NMR data. The surface activities of the surfactants were increased by increasing the number of substituents, as represented from the surface tension measurements. The metal complexes showed higher critical micelle concentrations and surface tension reduction at critical micelle concentration. The antimicrobial activity in terms of inhibition zone diameter and minimum inhibitory concentrations showed increasing activity of the metal complexes over their parent compounds against Gram-positive, Gram-negative bacteria and fungi.
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