Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Tamara Zoltan"'
Autor:
Ángela B. Sifontes, Luis Melo, Carlos Maza, Juan J. Mendes, Marta Mediavilla, Joaquín L. Brito, Tamara Zoltan, Alberto Albornoz
Publikováno v:
Química Nova, Vol 33, Iss 6, Pp 1266-1269 (2010)
Silver nanoparticles (AgNPs) were prepared by means of the polyol method in the absence of stabilizing polymers. To accomplish this objective, AgNO3 was added to ethylene glycol in the presence of NaOH (1 mol.L-1), the suspension formed was irradiate
Externí odkaz:
https://doaj.org/article/9931e5692a534a69961ce63b518739c2
Autor:
José Medina, Ernesto Medina, María Pineda, Carla Izzo, Jessenia Ortega, Verónica López, Tamara Zoltan, Carlos Rivas, Franklin Vargas, Luís Rosales
Publikováno v:
Avances en Química, Vol 3, Iss 1, Pp 7-14 (2008)
Skyrin is a natural product from some botanical species (fungi) and the first small molecular weight nonpeptidic antidiabetic agents. Now, the objective of this study was to investigate the ability of skyrin to inhibit free radical and some reactive
Externí odkaz:
https://doaj.org/article/df07b6858c27446f96bbeef03da9c2ca
Publikováno v:
Avances en Química, Vol 2, Iss 2, Pp 3-15 (2007)
In the present review, we have gathered a series of results on investigations carried out about the topic of the free radicals and their relationship with the cellular aging. We have considered how the reactive oxygen species (superoxide anion, singl
Externí odkaz:
https://doaj.org/article/808e8f73e5574144ae8a9a23d09fecf5
Publikováno v:
Avances en Química, Vol 1, Iss 3, Pp 3-12 (2006)
The phototoxic antidiabetes drug gliclazide (1) is photolabile under aerobic conditions and UV-B light.Irradiation of a phosphate buffered solution of 1 under oxygen atmosphere produces two photoproducts.The photochemistry of 1 involves cleavage of t
Externí odkaz:
https://doaj.org/article/cb46f7d48c6d483fafd613644609c884
Autor:
Edgar Mosquera, Francisco Gracia, Maibelin Rosales, Ciro Yadarola, Tamara Zoltan, Andreina García
Publikováno v:
Journal of Molecular Liquids. 281:59-69
The influence of morphology in one-dimensional (1D) TiO2 nanostructures—specifically nanotubes (TNT), nanofibers (TNF), nanorods (TNR), and nanowires (TNW)—on the photogeneration of reactive oxygen species (ROS) and the resulting effect on photoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::daf6d59c8170965f1446ba90f14f9839
https://doi.org/10.1016/j.molliq.2019.02.070
https://doi.org/10.1016/j.molliq.2019.02.070
Publikováno v:
Journal of Environmental Chemical Engineering. 4:3967-3980
Modify photocatalytic TiO2 to improve its characteristics has been very scientific attention, among which we can mention the use of porphyrin dyes. In this study, they were synthesized and characterized three asymmetric porphyrins to carry out for th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3359b6b3bf28b1b6a44e987ce891e559
https://doi.org/10.1016/j.jece.2016.09.008
https://doi.org/10.1016/j.jece.2016.09.008
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 135:747-756
The photodynamic effect of meso-substituted porphyrins with different charges and metal ions: meso-tetraphenylporphyrin tetrasulfonate 1, its nickel 2 and zinc complexes 3; meso-tetranaphthylporphyrin tetrasulfonate 4, and its zinc complex Zn 5; and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b94c57065608c9a90dcd94c00bc3688
https://doi.org/10.1016/j.saa.2014.07.053
https://doi.org/10.1016/j.saa.2014.07.053
Publikováno v:
Journal of Coordination Chemistry. 67:1715-1730
We performed the synthesis and characterization of meso-tetra-(4-benzoate-9-phenanthryl)-porphyrin and its Zn and Cu complexes. Synthesis of meso-tetra-(4-benzoate-9-phenanthryl)-porphyrin was carried out by dry gaseous HCl, meso-tetra-(4-carboxyphen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e81f8e07f5272b6da10e494559585d3
https://doi.org/10.1080/00958972.2014.917633
https://doi.org/10.1080/00958972.2014.917633
Autor:
Franklin J. Méndez, Aura Llanos, Yraida Díaz, Yanet Villasana, Reynaldo Jáuregui, Joaquín L Brito, Gustavo Liendo-Polanco, Marcel Echeverría, Tamara Zoltan, Miguel A. Ramos-García
Publikováno v:
Fuel. 110:249-258
A series of tungsten and molybdenum catalysts supported on MCM-41 were prepared using Keggin heteropolyacids (H 3 PM 12 O 40 , M = Mo or W) as active phase sources and compared with their analogues unsupported. The physicochemical characterization wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f72982c28d07b1808f9e222f5d30d30
https://doi.org/10.1016/j.fuel.2012.11.021
https://doi.org/10.1016/j.fuel.2012.11.021
Publikováno v:
Journal of Nanomaterials, Vol 2013 (2013)
Ceria nanoparticles were synthesized employing chitosan as template and thermal treatment at different temperatures (350, 650, and 960°C). The effect of calcination temperature on structural properties and photocatalytic activity of ceria nanopowder
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9692126c53be1ed7aae11242202d3ec
https://doi.org/10.1155/2013/265797
https://doi.org/10.1155/2013/265797