Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Nicolás G. Tognalli"'
Autor:
Aldo A. Rubert, Roberto Urcuyo, Roberto Carlos Salvarezza, Mavis L. Montero, María Elena Vela, Nicolás G. Tognalli, Guillermo Benítez, Alejandro Fainstein, Emiliano Cortés
Publikováno v:
The Journal of Physical Chemistry C, 115(50), pp. 24707-24717
Kérwá
Universidad de Costa Rica
instacron:UCR
Kérwá
Universidad de Costa Rica
instacron:UCR
The immobilization of dinuclear copper(II) acetate complexes (Cu2(CH3COO)4·2H2O) on self-assembled monolayers (SAMs) of different aliphatic and aromatic thiols with oxygen and nitrogen donors at the end group is investigated on preferentially orient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecc98e64f257a335a0c3123552d6cb26
https://doi.org/10.1021/jp207875g
https://doi.org/10.1021/jp207875g
Autor:
M. E. Vela, Pablo G. Lustemberg, Nicolás G. Tognalli, M. L. Martiarena, Guillermo Benítez, Roberto Carlos Salvarezza, Alejandro Fainstein, Carolina Vericat
Publikováno v:
The Journal of Physical Chemistry C. 112:11394-11402
High coverage S phases (surface coverage ≥0.33), spontaneously formed by immersion of Au(111) in Na 2S aqueous solutions at room temperature, have been studied by scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), surface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::368e19a2b435e12758e622fb06f93d5d
https://doi.org/10.1021/jp8029055
https://doi.org/10.1021/jp8029055
Autor:
María Elena Vela, Carolina Vericat, Alejandro Fainstein, Nicolás G. Tognalli, Roberto Carlos Salvarezza
Publikováno v:
The Journal of Physical Chemistry C. 112:3741-3746
In situ Raman spectroscopy and electrochemical experiments are used to study different methylene blue (MB) species immobilized in molecular films (sulfur, propanethiol, dodecanethiol, mercaptopropionic acid, and mercaptoundecanoic acid monolayers), s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::849b7739969a485fa6e43adf78113ff1
https://doi.org/10.1021/jp076239k
https://doi.org/10.1021/jp076239k
Autor:
Alex Fainstein, Luis M. Baraldo, Cecilia Bonazzola, Nicolás G. Tognalli, Claudio Rolli, Silvina Rothacher, Ernesto J. Calvo, Alejandra Marcela Ricci
Publikováno v:
Journal of Solid State Electrochemistry. 11:1511-1520
hemically modified electrodes by the osmium complex [Os(bpy)2Clpy−X]+PF−6 tethered to Au surfaces by (1) reaction of cysteamine with the aldehyde (X=CHO), (2) mercapto alkanoic acid reaction with amine [X=(CH2)2NH2], and (3) reduction of the diaz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd3f7c4bed5aa4fc41c101d97ca31bfa
https://doi.org/10.1007/s10008-007-0339-8
https://doi.org/10.1007/s10008-007-0339-8
Publikováno v:
Langmuir. 23:1152-1159
We have studied the self-assembly of thiol monolayers on high-area nanostructured gold surfaces. These surfaces are highly irregular with a fractal dimension close to 2.5. Auger electron spectroscopy and voltammetric data indicate that thiol self-ass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26bcee7b57ec257989b02a000a3ec7b0
https://doi.org/10.1021/la062006t
https://doi.org/10.1021/la062006t
Publikováno v:
The Journal of Chemical Physics. 120:1905-1911
We present a resonant Raman scattering study of (PAH--Os/PVS)n and (PAH--Os/GOx)m self-assembled multilayers (n=1-11 and m=1-3). These Os polymer multilayers can be used in electrodes as efficient molecular wires for biomolecular recognition. The Ram
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba2a26eee20ee84b323c5fa21fd61b7b
https://doi.org/10.1063/1.1635806
https://doi.org/10.1063/1.1635806
Autor:
G. A. Bocan, M. Dos Santos Afonso, A. Daza Millone, J. Ascolani Yael, J. D. Fuhr, M. L. Martiarena, Nicolás G. Tognalli
Glyphosate [N-phosphono-methylglycine (PMG)] is the most used herbicide worldwide, particularly since the development of transgenic glyphosate-resistant (GR) crops. Aminomethylphosphonic acid (AMPA) is the main glyphosate metabolite, and it may be re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb74203e3b36de873575b039693b935e
http://pubs.acs.org/doi/abs/10.1021/jf502979d
http://pubs.acs.org/doi/abs/10.1021/jf502979d
Autor:
Sara A. Bilmes, Horacio Esteban Troiani, Galo J. A. A. Soler-Illia, Alejandro Wolosiuk, Alejandro Fainstein, M. Granada, M. Cecilia Fuertes, Nicolás G. Tognalli, Eduardo D. Martínez
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
We introduce a nanoparticle-mesoporous oxide thin film composite (NP-MOTF) as low-cost and straightforward sensing platforms for surface-enhanced Raman Spectroscopy (SERS). Titania, zirconia, and silica mesoporous matrices templated with Pluronics F-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70e71a55e0edc53efcbc319bd33e3e74
https://pubmed.ncbi.nlm.nih.gov/24621107
https://pubmed.ncbi.nlm.nih.gov/24621107
Autor:
Nicolás G. Tognalli, Mamdouh E. Abdelsalam, Ernesto J. Calvo, Alejandro Fainstein, Philip N. Bartlett
Sphere segment void (SSV) arrays allow the reproducible engineering of plasmon-polariton modes from the near-infrared to the ultraviolet through the tuning of the void height and diameter. The wavelength dependence of surface-enhanced Raman scatterin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdd1df8b940f557970610cb7f73b58d2
https://pubs.acs.org/doi/10.1021/jp211049u
https://pubs.acs.org/doi/10.1021/jp211049u
Autor:
Roberto Carlos Salvarezza, Doris Grumelli, Elizabeth A. Jares-Erijman, Alejandro Fainstein, Federico J. Williams, Lucila P. Méndez De Leo, Emiliano Cortés, María Elena Vela, Guillermo O. Menéndez, Nicolás G. Tognalli
Publikováno v:
Nanoscale. 4(2)
Heptamethinecyanine J-aggregates display sharp, intense fluorescence emission making them attractive candidates for developing a variety of chem-bio-sensing applications. They have been immobilized on planar thiol-covered Au surfaces and thiol-capped
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f507c041de66975cd84fcfc1d9158282
https://pubmed.ncbi.nlm.nih.gov/22127420
https://pubmed.ncbi.nlm.nih.gov/22127420