Search Results - "Sousa, Marcelo Henrique"

Synthesis and characterization of the MNP@SiO2@TiO2 nanocomposite showing strong photocatalytic activity against methylene blue dye by Lacerda Fernandes, Ítalo, Pereira Barbosa, Danns, Botelho de Oliveira, Sérgio, Antônio da Silva, Valdeir, Henrique Sousa, Marcelo, Montero-Muñoz, Marly, A. H. Coaquira, José

“…[Display omitted] •A core–shell-shell MNP@SiO2@TiO2 nanophotocatalysts promising for wastewater treatment.•Magnetic MNP@SiO2@TiO2 nanocomposite synthesized via…”
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Lack of genotoxicity of iron oxide maghemite (γ-Fe2O3) and magnetite (Fe3O4) nanoparticles to Oreochromis niloticus after acute exposures by Fascineli, Maria Luiza, Cáceres-Vélez, Paolin Rocio, Pinheiro, Willie Oliveira, Chaves, Sacha Braun, Sousa, Marcelo Henrique, Peternella, Wilson Sacchi, Horst, Frederico Hillesheim, Fernandes, Michele de Castro, Guimarães, Wania, Azevedo, Ricardo Bentes, Grisolia, Cesar Koppe

“…Iron oxide nanoparticles (FeO-NPs) are widely used in scientific and technological fields. Environmental concerns have been raised about residual FeO-NPs…”
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Engineering Gold Shelled Nanomagnets for Pre-Setting the Operating Temperature for Magnetic Hyperthermia by Siqueira, Elis Regina Lima, Pinheiro, Willie Oliveira, Aquino, Victor Raul Romero, Coelho, Breno Cunha Pinto, Bakuzis, Andris Figueiroa, Azevedo, Ricardo Bentes, Sousa, Marcelo Henrique, Morais, Paulo Cesar

“…This study investigated the fabrication of spherical gold shelled maghemite nanoparticles for use in magnetic hyperthermia (MHT) assays. A maghemite core (14 ±…”
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Luminescent and Magnetic Properties of Fe3O4@SiO2:phen:Eu3 by Silva, Raphael Lucas de Sousa, Figueiredo, Alberthmeiry Teixeira de, Barrado, Cristiano Morita, Sousa, Marcelo Henrique

“…Magnetite was doped with rare earth ions (europium) to produce core-shell materials with both magnetic and luminescent properties, i.e., a magnetic Fe3O4 oxide…”
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New Electric Double-Layered Magnetic Fluids Based on Copper, Nickel, and Zinc Ferrite Nanostructures by Sousa, Marcelo Henrique, Tourinho, Francisco Augusto, Depeyrot, Jérôme, da Silva, Geraldo José, Lara, Maria Cristina F. L

“…We report on stable colloidal aqueous suspensions of magnetic nanostructures made of copper, nickel, and zinc ferrites. These magnetic fluids could represent a…”
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According to forensic science recommendations, are carbon dots capable of reliably developing latent fingerprints? by da Silva Carvalho, Daniel, Lobo, Bernardo José Munhoz, da Silva, Atailson Oliveira, Sousa, Marcelo Henrique, da Silva, Sebastião William

“…Carbon dots (CDs) are zero-dimensional carbon nanomaterials that have been subject of considerable interest due to their remarkable electronic and optical…”
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Discrimination of white automotive paint samples using ATR-FTIR and PLS-DA for forensic purposes by Duarte, Juliana Melo, Sales, Nádia Gabrielle Silva, Braga, Jez Willian Batista, Bridge, Candice, Maric, Mark, Sousa, Marcelo Henrique, Gomes, Juliano de Andrade

“…The consequences of a hit-and-run car crash are significant and may include serious injuries to the victims, health system overload and even victim's death…”
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Integration of 3D Fluorescence Imaging and Luminescent Thermometry with Core–Shell Engineered NaYF4:Nd3+/Yb3+/Ho3+ Nanoparticles by Vinícius-Araújo, Marcus, Shrivastava, Navadeep, Silva Loures, Guilherme, Krause, Rafael Freire, Sousa, Marcelo Henrique, de Santana, Ricardo Costa, Bakuzis, Andris Figueiroa

“…The design of rare-earth-doped upconversion/downshifting nanoparticles (NPs) for theoretical use in nanomedicine has garnered considerable interest. Previous…”
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Enhancing the efficiency of magnetically driven carbon nitride–based nanocomposites with magnetic nanoflowers for the removal of methylene blue dye at neutral pH by Rodovalho, Fernanda Lopes, Rosa, Eliane Vieira, da Silva, Atailson Oliveira, Moya, Sergio Enrique, Campos, Alex Fabiano Cortez, Sousa, Marcelo Henrique

“…The present study focuses on the elaboration of magnetic nanocomposites by the in situ incorporation of magnetite (Fe 3 O 4 ) nanoparticles (NPs) with…”
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pH-Dependent surface properties of N–Cdots obtained by the hydrothermal method with multicolored emissions by da Silva, Atailson Oliveira, Rodrigues, Marcelo Oliveira, Sousa, Marcelo Henrique, Campos, Alex Fabiano Cortez

“…This study addresses the pH-dependent surface properties of hydrophilic nitrogen-doped carbon dots (N–Cdots) elaborated through a hydrothermal method. The…”
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Integration of 3D Fluorescence Imaging and Luminescent Thermometry with Core-Shell Engineered NaYF 4 :Nd 3+ /Yb 3+ /Ho 3+ Nanoparticles by Vinícius-Araújo, Marcus, Shrivastava, Navadeep, Silva Loures, Guilherme, Krause, Rafael Freire, Sousa, Marcelo Henrique, de Santana, Ricardo Costa, Bakuzis, Andris Figueiroa

“…The design of rare-earth-doped upconversion/downshifting nanoparticles (NPs) for theoretical use in nanomedicine has garnered considerable interest. Previous…”
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The role of the lecithin addition in the properties and cytotoxic activity of chitosan and chondroitin sulfate nanoparticles containing curcumin by Jardim, Katiúscia Vieira, Siqueira, Joseilma Luciana Neves, Báo, Sônia Nair, Sousa, Marcelo Henrique, Parize, Alexandre Luis

“…[Display omitted] •CHI/CS and CHI/CS/lecithin NPs were synthesized using the ionic gelation method.•The interaction between biopolymers was optimized by…”
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e-mail: jez@unb.br Editor handled this article: Ivo M. Raimundo Jr. (Associate) Diffuse Reflectance FTIR of Latent Fingerprints and Discriminant Analysis for Sex Identification in Humans by de Souza, Marco Antonio, Santos, Alexandre, da Silva, Sebastião William, Braga, Jez Willian, Sousa, Marcelo Henrique

“…Latent fingerprint is an important crime scene evidence, but it is not always recoverable or technically suitable for analysis with fingerprint patterns…”
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Humic acid attenuation of silver nanoparticle toxicity by ion complexation and the formation of a Ag3+ coating by Cáceres-Vélez, Paolin Rocio, Fascineli, Maria Luiza, Sousa, Marcelo Henrique, Grisolia, Cesar Koppe, Yate, Luis, de Souza, Paulo Eduardo Narcizo, Estrela-Lopis, Irina, Moya, Sergio, Azevedo, Ricardo Bentes

“…[Display omitted] •Humic acid-HA, NaHCO3, MgSO4, KCl and CaCl2 change the stability and oxidation state of silver nanoparticle-AgNPs surface.•Ag3+ is formed on…”
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Influence of polyelectrolyte chains on surface charge and magnetization of iron oxide nanostructures by Palomec-Garfias, Abraham Francisco, Jardim, Katiúscia Vieira, Sousa, Marcelo Henrique, Márquez-Beltrán, César

“…[Display omitted] The layer-by-layer (LbL) technique was employed to encapsulate maghemite (γ-Fe2O3) nanoparticles with natural and synthetic polyelectrolytes,…”
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Automotive paint analysis: How far has science advanced in the last ten years? by Duarte, Juliana Melo, Sales, Nadia Gabrielle Silva, Sousa, Marcelo Henrique, Bridge, Candice, Maric, Mark, Gomes, Juliano de Andrade

“…The driver's criminal conduct of evading after a collision (hit-and-run) is a problem for law enforcement agencies worldwide. Witness reports or video images…”
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Andiroba Oil (Carapa guianensis) and ginger extract (Zingiber officinale)-loaded nanoemulsion: Elaboration, characterization, antioxidant activity, and cell viability investigation by da Silva, Atailson Oliveira, Sassi, Giulia Rosa, Santos, Mac-Kedson Medeiros Salviano, Oliveira, Sâmara Maria Pinheiro Vainauskas, Gomide, Guilherme, Junior, Valdir Florêncio Veiga, Monteiro, Isolda de Sousa, Dias, Diego Juscelino Santos, Campos, Alex Fabiano Cortez, Joanitti, Graziella Anselmo, de Andrade, Laise Rodrigues, Sousa, Marcelo Henrique

“…This study employs nanoengineering techniques to enhance the aqueous compatibility of andiroba oil and ginger extract, both renowned for their phytotherapeutic…”
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Evaluation of the antimicrobial activity of silver nanoparticles obtained by microwave-assisted green synthesis using Handroanthus impetiginosus (Mart. ex DC.) Mattos underbark extract by Illanes Tormena, Renata Pascoal, Rosa, Eliane Vieira, Oliveira Mota, Bruna de Fátima, Chaker, Juliano Alexandre, Fagg, Christopher William, Freire, Daniel Oliveira, Martins, Paula Melo, Rodrigues da Silva, Izabel Cristina, Sousa, Marcelo Henrique

“…We describe here a green method for the preparation of silver nanoparticles (AgNPs), by a microwave-assisted synthesis route using underbark extract, with…”
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Modulating physical, chemical, and biological properties of silver nanoparticles obtained by green synthesis using different parts of the tree Handroanthus heptaphyllus (Vell.) Mattos by Pereira, Tatiane Melo, Polez, Vera Lucia Perussi, Sousa, Marcelo Henrique, Silva, Luciano Paulino

“…Green synthesis of silver nanoparticles (AgNPs) is already widely used, however, it presents challenges. This work describes a way to modulate the…”
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Tuning magnetic and luminescent properties of iron oxide@C nanoparticles from hydrothermal synthesis: Influence of precursor reagents by da Silva, Atailson Oliveira, Campos, Alex Fabiano Cortez, Rodrigues, Marcelo Oliveira, Sousa, Marcelo Henrique

“…Magneto-luminescent nanocomposites were obtained by coating coprecipitated iron oxide nanoparticles with a functionalized carbon layer by hydrothermal…”
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