Search Results - "Andrade, Gustavo F.S."

A review on recent advances in the applications of surface-enhanced Raman scattering in analytical chemistry by Fan, Meikun, Andrade, Gustavo F.S., Brolo, Alexandre G.

“…This review is focused on recent developments of surface-enhanced Raman scattering (SERS) applications in Analytical Chemistry. The work covers advances in the…”
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Multilayer silver nanoparticles-modified optical fiber tip for high performance SERS remote sensing by Andrade, Gustavo F.S., Fan, MeiKun, Brolo, Alexandre G.

“…This work presents the construction and optimization of nanoparticles-modified optical fiber tip (NPs-MOFT) devices for remote sensing by surface-enhanced…”
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Probing ring contraction and decarboxylation of Rhodizonate and the influence of Cu (II) using surface‐enhanced Raman Scattering by Milán‐Garcés, Erix A., Georgopoulos, Stéfanos Leite, Barros Santos, Patrícia, Sato, Fernando, Sant'Ana, Antonio Carlos, Andrade, Gustavo F.S., Oliveira, Luiz Fernando Cappa

“…Understanding ring contraction and decarboxylation reactions is critical to different fields of chemistry. The reaction of conversion of rhodizonate (Rho) to…”
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Chemical behavior of croconic acid coordinated to Co(II) adsorbed on silver surface by Milán‐Garcés, Erix A., Georgopoulos, Stéfanos Leite, Sant'Ana, Antonio Carlos, Andrade, Gustavo F.S., Oliveira, Luiz Fernando Cappa

“…The vibrational properties of croconic acid (CA), the associated anionic specie croconate (CR), and their complexes with the transition metals Co(II) were…”
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Spectroelectrochemical study of picolinic acid adsorption during silver electrodeposition by Vázquez, Cecilia I., Andrade, Gustavo F.S., Temperini, Marcia L.A., Lacconi, Gabriela I.

“…[Display omitted] The adsorption of picolinic acid (PA) onto HOPG electrodes during silver electrodeposition at pH 3.0 was examined using conventional…”
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SERS Characterization of the Indocyanine-Type Dye IR-820 on Gold and Silver Nanoparticles in the Near Infrared by Neves, Tatiana B. V., Andrade, Gustavo F. S.

“…The Raman spectrum of the indocyanine-type dye IR-820 has been assigned for both solid and solution. SERS spectra of IR-820 on both silver and gold…”
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A review on the fabrication of substrates for surface enhanced Raman spectroscopy and their applications in analytical chemistry by Fan, Meikun, Andrade, Gustavo F.S., Brolo, Alexandre G.

“…This work reviews different types of substrates used for surface-enhanced Raman scattering (SERS) that have been developed in the last 10 years. The different…”
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2-Formylpyridinethiosemicarbazone and methyl derivatives: spectroscopic studies by Pessôa, Mônica M.B, Andrade, Gustavo F.S, Paoli Monteiro, Vera R, Temperini, Marcia L.A

“…The Z– E isomerization of 2 -formylpyridinethiosemicarbazone (PATS2), 2 -formylpyridine-2′-methyl thiosemicarbazone (2′MePATS2), 2 -formylpyridine-4′-methyl…”
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Development of homogeneous flexible substrates and evaluation of SERS performance for anionic and cationic dyes by Oliveira, Gabriela P., Righi, Ariete, Almeida, Mariana R., Andrade, Gustavo F.S.

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SHINERS in cultural heritage: Can SHINERS spectra always be compared with normal Raman spectra? A study of alizarin and its adsorption in the silicon dioxide shell by Puglieri, Thiago Sevilhano, Madden, Odile, Andrade, Gustavo F. S.

“…Raman microspectroscopy is a powerful analytical technique in cultural heritage. However, results are often compromised by luminescence interference and poor…”
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Photodegradation mechanism of the RB5 dye: A theoretical and spectroscopic study by Santos, Patrícia B., Dos Santos, Hélio F., Andrade, Gustavo F.S.

“…[Display omitted] •The DFT method was used to study azo-hydrazo balance in RB5 dye.•Theoretical UV–vis and Raman Spectra were compared with experimental…”
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Plasmonic nanobiosensor based on Au nanorods with improved sensitivity: A comparative study for two different configurations by Peixoto, Linus Pauling F., Santos, Jacqueline F.L., Andrade, Gustavo F.S.

“…Biosensors presenting high sensitivity for the detection of biomolecules are very promising for diseases diagnosis. Nowadays, there is a need for the…”
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Probing Dynamic Generation of Hot-Spots in Self-Assembled Chains of Gold Nanorods by Surface-Enhanced Raman Scattering by Lee, Anna, Andrade, Gustavo F. S, Ahmed, Aftab, Souza, Michele L, Coombs, Neil, Tumarkin, Ethan, Liu, Kun, Gordon, Reuven, Brolo, Alexandre G, Kumacheva, Eugenia

“…Further progress in the applications of self-assembled nanostructures critically depends on developing a fundamental understanding of the relation between the…”
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Copper nanoparticles–containing tellurite glasses: An efficient SERS substrate by Machado, Tamires M., Peixoto, Linus Pauling F., Andrade, Gustavo F.S., Silva, Maurício A.P.

“…This work reports on a new application of CuNPs-containing tellurite glasses as surface-enhanced Raman scattering (SERS) substrate for detection of the…”
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Surface enhanced fluorescence immuno-biosensor based on gold nanorods by Peixoto, Linus Pauling F., Santos, Jacqueline F.L., Andrade, Gustavo F.S.

“…[Display omitted] •Development of biosensors based on Au nanorods and surface-enhanced fluorescence.•Biosensing based on sandwich immunoassays for monitoring…”
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Enhanced enzymatic electrochemical detection of an organophosphate Pesticide: Achieving Wide linearity and femtomolar detection via gold nanoparticles growth within polypyrrole films by Loguercio, Lara F., Griep, Jordana, Demingos, Pedro G., Morawski, Rodrigo, Brolo, Alexandre G., Andrade, Gustavo F.S., Santos, Jacqueline F.L.

“…The indiscriminate use of pesticides in agriculture demands the development of devices capable of monitoring contaminations in food supplies, in the…”
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Plasmonic photodegradation of textile dye Reactive Black 5 under visible light: a vibrational and electronic study by Santos, Patrícia B., Santos, Jonnatan J., Corrêa, Charlane C., Corio, Paola, Andrade, Gustavo F.S.

“…[Display omitted] •Plasmonic photodegradation of RB5 dye in the visible light was performed.•Plasmonic photocatalyst Ag ̸ ZnO promotes a 54% larger reaction…”
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Magnetic characterization, electronic structure and vibrational properties of (NH4)2 M(SO4)2·6H2O (M=Mn, Ni) crystals by Pacheco, Tiago S., Ludwig, Zélia M.C., Ullah, Saif, de Mendonça, João P.A., Sato, Fernando, de Souza, Rafael L., Paiva, Edinei C., Martins, Maximiliano D., Marques, Flavia C., Andrade, Gustavo F.S., Ghosh, Santunu

“…Tutton salt family crystals have already been investigated through various experimental techniques and theoretical-computational methods by several…”
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Chitosan stabilization and control over hot spot formation of gold nanospheres and SERS performance evaluation by de Oliveira, Débora G., Pimentel, Giovana A., Andrade, Gustavo F.S.

“…[Display omitted] Au nanoparticles tend to aggregate in solution in the presence of several agents, specifically most adsorbates used in SERS experiments, such…”
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Structural characterization and plasmonic properties of manganese oxide-coated gold nanorods by Marques, Flávia C., Azevedo, Gustavo C., Senna, Carlos A., Archanjo, Bráulio S., Corrêa, Charlane C., Matos, Renato C., dos Santos, Diego Pereira, Andrade, Gustavo F.S.

“…[Display omitted] •Au nanorods coverage by manganese oxide ultrathin films resulted in blue-shift of the plasmonic band for thin layers, tendency reversed for…”
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