The generation of layer-by-layer silicate-chitosan composite biosorbent was studied. The films were evaluated on its stability regarding the polymer leakage and its capability in the removal of Cd(II), Cr(III) and Cr(VI) from an aqueous solution. …
Novel solid copper(II) complexes were obtained from the polyampholyte poly(EGDE-MAA-IM) and the polyelectrolyte poly(EGDE-MAA) polymers with copper salts at different concentration levels. The materials were characterized employing solid-state …
An antimicrobial coating was evaluated in this work for its antimicrobial efficacy against common food-borne pathogens. Dodecyl-di(aminoethyl)-glycine, an organic disinfectant, was immobilized in a silicon oxide matrix to generate thin films over …
In this work we describe the application of a new non-soluble and non-porous complex with copper ion based on ethylene glycol diglycidyl ether (EGDE), methacrylic acid (MAA) and 2-methylimidazole (2MI) in the decolorization of an azo dye Methyl …
A novel material that combines mechanical resistance with ampholyte character was easily obtained by the reaction of methacrylic acid, 2-methylimidazole and ethylene glycol diglycidyl ether. The structure was studied by solid-state 13C NMR and FT IR …
Novel materials with either polyampholyte or polyelectrolyte character and coordination properties were obtained by reaction of methacrylic acid (MAA), imidazole (IM) or 2-methylimidazole (2MI) and ethylene glycol diglycidyl ether (EGDE) in the …
A high-performance liquid chromatographic (HPLC) method with electrochemical detection (ED) using a monolithic column was developed and validated for the simultaneous quantitative determination of aniline, 2-aminobiphenyl, and 4-aminobiphenyl in …
The antimicrobial compound dodecyl-di(aminoethyl)-glycine was immobilized in a silicon oxide xerogel matrix and used for glass surface coating. Coated glasses were tested for surface antimicrobial activity. The utilization of tetraethoxysilane (TEOS) …
The aim of this work was to study the functionality and quantitative level of recombinant protein produced from bacteria immobilized and preserved in sol-gel matrices. Matrices prepared from two precursors, silicon dioxide and tetraethoxysilane, were …
A synthetic route to mono-meso-ferrocenyl porphyrins using a MacDonald-type 2+2 condensation is described. In this method, the substituted diformyldipyrrylmethane 4 is treated with the dicarboxydipyrrylmethane 6. The 5-ferrocenyldipyrrylmethane was …