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Search results (46 of 74)

Spectral response and stability of In2S3 as visible light-active photocatalyst

2012
Raquel Lucena García, Fernando Fresno García, J. C. Conesa
Catalysis Communications

Materiales MOF para el almacenamiento de hidrógeno

2012
M.A. Orcajo , J. A. Botas , Guillermo Calleja , Manuel Sánchez Sánchez
Anales de Química
The study of sorbent materials having prominent textural properties ga...

Combined ATR-SEIRAS and EC-STM Study of the Immobilization of Laccase on Chemically Modified Au Electrodes

2012
Cristina Vaz Dominguez, Marcos Pita Martínez, Antonio López de Lacey, Sergey Shleev , Ángel Cuesta Ciscar
Journal of Physical Chemistry CThe successive steps of laccase immobilization on chemically modified Au electrodes were monitored using ATR-SEIRAS and in situ STM. Successful covalent immobilization of the enzyme on Au electrodes modified by a mixed aminophenyl-mercaptohexanol adlayer and on Au electrodes modified by a 4-aminothiophenyl SAM via a Schiff base reaction followed by the formation of amide bonds is revealed by the emergence of the corresponding bands in the ATR-SEIRA spectra, and an enzyme coverage on aminophenyl-mercaptohexanol-modified Au electrodes of about (7.27 ± 1.93) × 1011 laccase units per cm2 was calculated from STM images. The small differences between the ATR-SEIRA spectra of the enzyme immobilized on aminophenyl-mercaptohexanol-modified Au electrodes and the ATR-SEIRA spectra of the enzyme immobilized on 4-aminothiophenyl-modified Au electrodes are attributed to a different orientation of the immobilized enzyme due to the presence on the surface of aminophenyl-mercaptohexanol-modified Au electrodes of OH functional groups that favor an orientation of laccase with the Cu T1 center of the enzyme facing the electrode surface, thus, allowing a high activity for direct electrocatalysis of the ORR at low overpotentials.
The successive steps of laccase immobilization on chemically modif...

Improvement of fungal arabinofuranosidase thermal stability by reversible immobilization.

2012
PUBLICACIONES
Process Biochemistry,
A gene encoding α-l-arabinofuranosidase (abfA) from Aspergillus ...

FtsZ polymers bound to lipid bilayers through ZipA form dynamic two dimensional networks

2012
Pablo Mateos Gil, Ileana Marquez , Pilar Lopez-Navajas , Mercedes Jimenez , German Rivas , Jesus Mingorance , Miguel Vicente , Marisela Vélez Tirado
BBA – Biomembranes
Bacteria divide by forming a contractile ring around their midcell reg...

NMR and SAXS Analysis of Connectivity of Aluminum and Silicon Atoms in the Clear Sol Precursor of SSZ-13 Zeolite

2012
Ana Belén Pinar Prieto, Raul F. Lobo
Chemistry of Materials
We report the first study of the hydrolysis of tetraethyl orthosilicat...
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