نتایج جستجو برای: lixiviation

تعداد نتایج: 57  

2017
Leticia Esteban-Tejeda Francisco J. Palomares Belén Cabal Roberto López-Píriz Adolfo Fernández David Sevillano Luis Alou Ramón Torrecillas José S. Moya

The dissolution of an antimicrobial ZnO-glass in the form of powder and in the form of sintered pellets were studied in water, artificial seawater, biological complex media such as common bacterial/yeast growth media (Luria Bertani (LB), yeast extract, tryptone), and human serum. It has been established that the media containing amino acids and proteins produce a high lixiviation of Zn2+ from t...

Journal: :Déchets, sciences et techniques 1998

Journal: :Memorias do Instituto Oswaldo Cruz 2000
A D Barbosa F S Barros E Q Callou A M Almeida A M Araujo W M Azevedo L B Carvalho

Antigen from Yersinia pestis was adsorbed on cellulose acetate discs (0.5 cm of diameter) which were obtained from dialysis membrane by using a paper punch. ELISA for human plague diagnosis was carried out employing this matrix and was capable to detect amount of 1.3 microg of antigen, 3,200 times diluted positive serum using human anti-IgG conjugate diluted 1:4,000. No relevant antigen lixivia...

Journal: :Journal of the American Chemical Society 1896

2012
Leticia Esteban-Tejeda Francisco Malpartida Luis Antonio Díaz Ramón Torrecillas Fernando Rojo José Serafín Moya

The present work was focused on obtaining biocide coatings constituted by a glassy soda-lime matrix containing silver or copper nanoparticles on ceramic (alumina and zirconia based) substrates. Both glassy coatings showed a high biocide activity against Gram-, Gram+ bacteria and yeast, reducing cell numbers more than three logarithms. Silver nanoparticles had a significantly higher biocide acti...

Journal: :Bioresource technology 2010
L Fernando Bautista Gabriel Morales Raquel Sanz

The oxidation of naphthalene by immobilized laccase from Trametes versicolor has been performed using diverse immobilization strategies on mesostructured silica materials. Laccase was immobilized by physical adsorption on several SBA-15 with different textural properties and by covalent attachment on functionalized SBA-15 prepared by co-condensation method (direct synthesis). The adsorption of ...

Journal: :Minutes of the Proceedings of the Institution of Civil Engineers 1896

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