Search Results - "Santos, Jonnatan J"

Highly Pure Silica Nanoparticles with High Adsorption Capacity Obtained from Sugarcane Waste Ash by Rovani, Suzimara, Santos, Jonnatan J, Corio, Paola, Fungaro, Denise A

“…Silica nanoparticles (SiO2NPs) from renewable sources can be used in very different materials, such as paints, membranes for fuel cells, Li-ion batteries,…”
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Fast, efficient and clean adsorption of bisphenol-A using renewable mesoporous silica nanoparticles from sugarcane waste ash by Rovani, Suzimara, Santos, Jonnatan J, Guilhen, Sabine N, Corio, Paola, Fungaro, Denise A

“…Even with all the biological problems associated with bisphenol-A (BPA), this chemical is still being widely used, especially in thermal paper receipts. In…”
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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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Unveiling Anomalous Surface-Enhanced Resonance Raman Scattering on an Oxo–Triruthenium Acetate Cluster Complex by a Theoretical–Experimental Approach by Santos, Jonnatan J, Toma, Sergio H, Ando, Romulo A, Corio, Paola, Araki, Koiti

“…Surface-enhanced Raman spectroscopy (SERS) has been explored by the most diverse areas of research over the past 40 years, with more special attention from…”
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Key role of surface concentration on reproducibility and optimization of SERS sensitivity by Santos, Jonnatan J., Toma, Sergio H., Corio, Paola, Araki, Koiti

“…A systematic study was carried out demonstrating that surface concentration is the key factor that must be controlled to overcome the reproducibility problems…”
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Pushing the surface-enhanced Raman scattering analyses sensitivity by magnetic concentration: A simple non core–shell approach by Toma, Sergio H., Santos, Jonnatan J., Araki, Koiti, Toma, Henrique E.

“…[Display omitted] •A simple and accessible method for molecular analyses down to the picomolar range.•SERS probes based on nanostructured materials can be…”
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Selecting the Mechanism of Surface-Enhanced Raman Scattering Effect using Shell Isolated Nanoparticles and an Oxo–Triruthenium Acetate Cluster Complex by Santos, Jonnatan J, Toma, Sergio H, Monezi, Natalia M, Ando, Romulo A, Corio, Paola, Araki, Koiti

“…After more than 40 years, surface-enhanced Raman spectroscopy (SERS) stills attract much attention from chemists, not only because of the synthesis of…”
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Study of Renewable Silica Powder Influence in the Preparation of Bioplastics from Corn and Potato Starch by de Azêvedo, Luciana C., Rovani, Suzimara, Santos, Jonnatan J., Dias, Djalma B., Nascimento, Sandi S., Oliveira, Fábio F., Silva, Leonardo G. A., Fungaro, Denise A.

“…In the present study, 0.5–1.5% silica powder, from sugarcane waste ash, was incorporated into corn and potato starch bioplastics doped with sodium silicate…”
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Spectroscopic and electrophoresis study of substitution on the surface of gold nanoparticles by different mercaptoalkyl carboxylic acids and bioconjugation with bovine serum albumin by Silveira, Raisa L., Mamián-López, Mónica B., Rubim, Joel C., Temperini, Marcia L. A., Corio, Paola, Santos, Jonnatan J.

“…To develop bioconjugated materials, it is necessary to understand how the various elements present in a conjugate interact with one another. To gain insights…”
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Detection of Plasmon Coupling between Silver Nanowires Based on Hyperspectral Darkfield and SERS Imaging and Supported by DDA Theoretical Calculations by Santos, Jonnatan J., Ivanov, Evandro, dos Santos, Diego P., Toma, Henrique E., Corio, Paola

“…We report the unprecedented observation of plasmon coupling between silver nanowires, showing how the surface‐enhanced Raman scattering depends upon this…”
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Surface Enhanced Raman Spectroelectrochemistry of a μ‑Oxo Triruthenium Acetate Cluster: An Experimental and Theoretical Approach by Santos, Jonnatan J, Ando, Romulo A, Toma, Sergio H, Corio, Paola, Araki, Koiti, Toma, Henrique E

“…Surface enhanced Raman spectroelectrochemistry (SERS) spectroelectrochemistry provides a very sensitive technique to investigate the vibrational…”
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Inside Back Cover: Detection of Plasmon Coupling between Silver Nanowires Based on Hyperspectral Darkfield and SERS Imaging and Supported by DDA Theoretical Calculations (ChemPhysChem 4/2016) by Santos, Jonnatan J., Ivanov, Evandro, dos Santos, Diego P., Toma, Henrique E., Corio, Paola

“…Coupling between two silver nanowires is observed by using Raman spectroscopy mapping, which can be used to detect the resulting hot spots. These…”
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Electrochemically activated coordenative assembly of a triruthenium cluster metallopolymer by Toma, Sergio H., Santos, Jonnatan J., Velho, Rodrigo G., Nakamura, Marcelo, Toma, Henrique E., Araki, Koiti

“…[Display omitted] ► A general strategy for electrochemically induced coordinative assembly of metallopolymers was demonstrated. ► The concept was proven using…”
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Bovine Serum Albumin Conjugated Gold-198 Nanoparticles as Model To Evaluate Damage Caused by Ionizing Radiation to Biomolecules by Santos, Jonnatan J, Leal, Jessica, Dias, Luis A. P, Toma, Sergio H, Corio, Paola, Genezini, Frederico A, Katti, Kattesh V, Araki, Koiti, Lugão, Ademar B

“…Gold nanoparticles (AuNPs) have several applications including in medicine. Considering cancer is one of the most common diseases for men and women, new…”
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An Alternative and Simple Method for the Preparation of Bare Silica Nanoparticles Using Sugarcane Waste Ash, an Abundant and Despised Residue in the Brazilian Industry by Rovani, Suzimara, Santos, Jonnatan, Corio, Paola, Fungaro, Denise

“…Sugarcane waste ash, a Si-rich waste product, is generated in large quantities and creates a serious disposal problem in the Brazilian ethanol-sugar industry,…”
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Probing the chemical interaction between different carbon allotropes oxides and titanium dioxide nanoparticles by Raman spectroscopy by Corio, Paola, Silva, Karina C., Soares, Natalia A., Inoue, Fabiana, Santos, Jonnatan J.

“…[Display omitted] •The chemical interaction between carboxyl functionalized single and multi wall carbon nanotubes and graphene with titanium dioxide is…”
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Gold Nanoparticle/Tetrapyridylporphyrin Hybrid Material: Spectroscopic and Electrocatalytic Properties and Sensor Application by Santos, Jonnatan, Toma, Sergio, Yatsuzuka, Rebeca, Araki, Koiti

“…An electrocatalytic active hybrid material prepared by successive stepwise coordinative deposition of 20 nm diameter gold nanoparticles (AuNP) with…”
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Characterization of the chemical interaction between single-walled carbon nanotubes and titanium dioxide nanoparticles by thermogravimetric analyses and resonance Raman spectroscopy by Silva, Karina C., Corio, Paola, Santos, Jonnatan J.

“…Raman spectroscopy is a powerful technique that is used to characterize or observe alterations in the structure or properties of carbon nanotubes and its…”
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Biodegradable Films Derived from Corn and Potato Starch and Study of the Effect of Silicate Extracted from Sugarcane Waste Ash by de Azevedo, Luciana C., Rovani, Suzimara, Santos, Jonnatan J., Dias, Djalma B., Nascimento, Sandi S., Oliveira, Fábio F., Silva, Leonardo G. A., Fungaro, Denise A.

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Direct assembly of a metallodendrimer encompassing seven triruthenium clusters units by Toma, Sergio H., Santos, Jonnatan J., Nikolaou, Sofia, Araki, Koiti, Toma, Henrique E.

“…A general strategy for the assembly of dendrimeric metallo-cluster is demonstrated using triangular triruthenium acetate complexes and tripodal TPEB bridging…”
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