Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Thomas G. Chasteen"'
Autor:
José M Pérez-Donoso, Juan P Monrás, Denisse Bravo, Adam Aguirre, Andrew F Quest, Igor O Osorio-Román, Ricardo F Aroca, Thomas G Chasteen, Claudio C Vásquez
Publikováno v:
PLoS ONE, Vol 7, Iss 1, p e30741 (2012)
Multiple applications of nanotechnology, especially those involving highly fluorescent nanoparticles (NPs) or quantum dots (QDs) have stimulated the research to develop simple, rapid and environmentally friendly protocols for synthesizing NPs exhibit
Externí odkaz:
https://doaj.org/article/d6414d35261d4f58af30a21215a740bb
Autor:
Juan P Monrás, Víctor Díaz, Denisse Bravo, Rebecca A Montes, Thomas G Chasteen, Igor O Osorio-Román, Claudio C Vásquez, José M Pérez-Donoso
Publikováno v:
PLoS ONE, Vol 7, Iss 11, p e48657 (2012)
The vast application of fluorescent semiconductor nanoparticles (NPs) or quantum dots (QDs) has prompted the development of new, cheap and safer methods that allow generating QDs with improved biocompatibility. In this context, green or biological QD
Externí odkaz:
https://doaj.org/article/0b2584817a8743d5a3173d276db264e6
Autor:
Felipe A. Arenas, Claudio C. Vásquez, Claudia M. Muñoz, Nicole A. Henríquez, Thomas G. Chasteen, María F. Pozo, Benoit Pugin, Waldo A. Díaz-Vásquez, José M. Pérez-Donoso, Mauricio Arenas-Salinas
Publikováno v:
Polar Science. 8:40-52
The tellurium oxyanion, tellurite, is extremely noxious to most living organisms. Its toxicity has been mainly related to the generation of reactive oxygen species (ROS) as well as to an unbalancing of the thiol:redox buffering system. Nevertheless,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09752d556a642e441207764f578630d6
https://doi.org/10.1016/j.polar.2014.01.001
https://doi.org/10.1016/j.polar.2014.01.001
Autor:
José M. Pérez-Donoso, Rebecca A. Montes, Claudia M. Muñoz, Claudio C. Vásquez, Roberto C. Molina, Alex O. Elías, Thomas G. Chasteen, Radhika Burra
Publikováno v:
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
A fast, simple, and reliable chemical method for tellurite quantification is described. The procedure is based on the NaBH 4 -mediated reduction of TeO 3 2− followed by the spectrophotometric determination of elemental tellurium in solution. The me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59bd0d2136abd1bbd77ca9ac9126c3ee
https://doi.org/10.1128/aem.00598-10
https://doi.org/10.1128/aem.00598-10
Publikováno v:
ENVIRONMENTAL TECHNOLOGY
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
Artículos CONICYT
CONICYT Chile
instacron:CONICYT
The selenocyanate anion, SeCN(-), has been reported in wastewater from refineries whose petroleum comes from Se-rich marine shales. A metalloid-resistant bacterium was exposed to aqueous solutions of SeCN(-) to examine the relative toxicity of SeCN(-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68015131168cc4b46c22dcbc44c54687
https://doi.org/10.1080/09593330902998082
https://doi.org/10.1080/09593330902998082
Publikováno v:
FEMS Microbiology Reviews. 33:820-832
The perceived importance of tellurium (Te) in biological systems has lagged behind selenium (Se), its lighter sister in the Group 16 chalcogens, because of tellurium's lower crustal abundance, lower oxyanion solubility and biospheric mobility and the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f4ba8120cf240441355e27f9d22372c
https://doi.org/10.1111/j.1574-6976.2009.00177.x
https://doi.org/10.1111/j.1574-6976.2009.00177.x
Autor:
Bala Krishna Pathem, Thomas G. Chasteen, Gonzalo A. Pradenas, Miguel E. Castro, Claudio C. Vásquez
Publikováno v:
Analytical Biochemistry. 364:138-144
A simple capillary zone electrophoretic method for the determination of biospherically important oxyanions of selenium (Se) and tellurium and another Se-containing anion, selenocyanate, has been developed. The method uses direct UV absorption detecti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34a1b09ab3fe77a0f0bb3c1f087d4579
https://doi.org/10.1016/j.ab.2007.03.004
https://doi.org/10.1016/j.ab.2007.03.004
Autor:
Claudio C. Vásquez, Derie E. Fuentes, Claudia P. Saavedra, Mary F. Plishker, Jr Jw Swearingen, Manuel A. Araya, Thomas G. Chasteen
Publikováno v:
Applied and Environmental Microbiology. 72:963-967
The ubiE gene of Geobacillus stearothermophilus V, with its own promoter, was cloned and introduced into Escherichia coli . The cloned gene complemented the ubiE gene deficiency of E. coli AN70. In addition, the expression of this gene in E. coli JM1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d856907ccc4f835596f841a1d3e8690
https://doi.org/10.1128/aem.72.1.963-967.2006
https://doi.org/10.1128/aem.72.1.963-967.2006
Autor:
Gonzalo A. Pradenas, Thomas G. Chasteen, Iván L. Calderón, Vicente Durán-Toro, Roberto C. Molina-Quiroz, Denisse Bravo, Paulina F. Calderón, Claudio C. Vásquez, J. P. Monrás, David E. Loyola, Nicolás Órdenes-Aenishanslins, José M. Pérez-Donoso, L. A. Saona, B. Collao, F. A. Venegas, Desiré A Lopez
Publikováno v:
BMC Genomics
Background Most semiconductor nanoparticles used in biomedical applications are made of heavy metals and involve synthetic methods that require organic solvents and high temperatures. This issue makes the development of water-soluble nanoparticles wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b2d3705d4b3d29057c9310b631df6f5
http://europepmc.org/articles/PMC4300170
http://europepmc.org/articles/PMC4300170
Publikováno v:
Process Biochemistry. 39:1607-1613
Experiments were carried out to determine the mass balance of selenium biologically processed by a Se-resistant bacterium, Pseudomonas fluorescens K27. The bioprocessing of this toxicant, added to growing liquid cultures, resulted in reduction and in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0b12a084444ad9250802402245c0e15
https://doi.org/10.1016/s0032-9592(03)00298-x
https://doi.org/10.1016/s0032-9592(03)00298-x