SciELO - Scientific Electronic Library Online

vol.16 issue2Ball bearing vibrations model: Development and experimental validationStudy of mortars added with fluid catalytic cracking catalyst residue (FCC) under the influence of high temperatures author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand



Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google


Ingeniería y competitividad

Print version ISSN 0123-3033


ROJAS, Hugo A.; MARTINEZ, José J.  and  VARGAS, Annie Y.. Magnetic supports selection for Urease inmobilization. Ing. compet. [online]. 2014, vol.16, n.2, pp.289-296. ISSN 0123-3033.

Fe3O4, Fe3O4-NH2, Fe3O4@SiO2 y Fe3O4@SiO2-NH2 as magnetic supports were studied for the urease immobilization. The solids were characterized by N2-physical adsorption at 77 K, magnetization curves and FTIR. Activity assays were evaluated by urea decomposition. The magnetic properties of solids allow an easy separation. The immobilized enzyme improved the enzymatic activity compared to the free enzyme. In Fe3O4-NH2 and Fe3O4@SiO2-NH2 was observed allows a greater amount of enzyme coupled

Keywords : APTES; inmovilización; magnetita; soportes; ureasa.

        · abstract in English | English | English | English | English | Spanish     · text in Spanish     · Spanish ( pdf )