Buscar
Mostrando ítems 1-10 de 820
Synthesis of 1,4-dihydropyrimidines with immobilized urease: Effect of method immobilization on magnetic supports
(De Gruyter, 2017-08)
The effect of the urease immobilization method was studied on magnetic supports for the Biginelli/Hantzsch reaction. For this purpose, Fe3O4/SiO2 was modified with 3-Aminopropyl-Triethoxysilane and then activated with ...
Immobilization and bioimprinting strategies to enhance the performance in organic medium of the metagenomic lipase LipC12
(Elsevier Science, 2021-12-09)
The present work evaluates the immobilization of LipC12 on different supports in tandem with bioimprinting technique, in order to improve its activity and stability in organic medium. Oleic acid was selected as the ...
Enzyme or whole cell immobilization for efficient biocatalysis: focusing on novel supporting platforms and immobilization techniques
(Corporación Universidad de la Costa, 2021)
Effectiveness of nanoscale zero-valent iron for the immobilization of Cu and/or Ni in water and soil samples
(Nature, 2020-12)
In the last few years, the effectiveness of nanoscale zero-valent iron (nZVI) as a treatment for polluted waters and soils has been widely studied. However, little data are available on its efficacy for metal immobilization ...
Improving the properties of chitosan as support for the covalent multipoint immobilization of chymotrypsin
(American Chemical Society, 2008-07)
Changing gel structure and immobilization conditions led to a significant improvement in the covalent multipoint attachment of chymotrypsin on chitosan. The use of sodium alginate, gelatin, or κ-carrageenan, activation ...
A practical approach for the removal of cationic surfactants using planktonic and immobilized bacterial cells
(Inst Biology, 2019-05-20)
Among the efforts directed at remediating contaminated sites, the use of immobilized microorganisms is an appealing alternative because it offers several advantages over the use of free cells, including protecting cells ...
Beneficial rhizobacteria immobilized in nanofibers for potential application as soybean seed bioinoculants
(Public Library of Science, 2017-05)
Seed inoculation with plant growth promoting rhizobacteria (PGPR) is an ideal tool to supply the soil with a high density of beneficial microorganisms. However, maintaining viable microorganisms is a major problem during ...
Petroleum oil removal by immobilized bacterial cells on polyurethane foam under different temperature conditions
(Pergamon-Elsevier Science Ltd, 2017-05)
In this work, a mixed biofilm composed by Pseudomonas monteilii P26 and Gordonia sp. H19 was formed using polyurethane foam (PUF) as immobilization support, for crude oil removal from artificial sea water. Fresh immobilized ...
Covalent immobilization of soybean seed hull urease on chitosan mini-spheres and the impact on their properties
(Elsevier, 2019-03)
Urease (EC 3.5.1.5) is found in bacteria, fungi, algae, plants and some invertebrates, and in soils. Soil ureases are partly extracellular being liberated during microbial and plant root metabolism and death. In plants, ...
In situ immobilization of commercial lipase in rigid polyurethane foam and application in the esterification of geraniol and oleic acid
(Universidade Tecnológica Federal do Paraná (UTFPR), 2017)