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Title of article :
Investigation of the binding of dioxin selective pentapeptides to a polyaniline matrix
Author/Authors :
Archibong، نويسنده , , Edikan and Wang، نويسنده , , Ling and Ivanov، نويسنده , , Ivan and Lita، نويسنده , , Adrian and Redda، نويسنده , , Kinfe and Mateeva، نويسنده , , Nelly، نويسنده ,
Issue Information :
دوماهنامه با شماره پیاپی سال 2012
Pages :
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Abstract :
Polyaniline in form of emeraldine salt and emeraldine base was used as a matrix to attach several labeled and non-labeled dioxin selective pentapeptides both directly to the polymer and using glutaraldehyde as a linker. The peptides have been selected as a model to study the binding process due to their smaller size, lower sensitivity to the environment and potential application as solid state extraction reagents for chlorinated toxins. The composition and the properties of the compounds were investigated by means of elemental analysis, XPS, FTIR, UV/vis, and fluorescence spectroscopy. The results have shown that 3.30–7.76% peptides were attached to the emeraldine base both with and without a linker. Glutaraldehyde and the peptides were connected to the matrix via chemical bond resulting in formation of compounds whit similar composition and stability in a broad pH range. The influence of the linker and the peptides on the electronic properties and composition of the polymer have been investigated by principal component analysis.
Keywords :
UV/Vis , fluorescence , PCA , Small peptides , glutaraldehyde , Polyaniline
Journal title :
Synthetic Metals
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Link To Document :