Artigos 2021

Electron–phonon superconductivity in C-doped topological nodal-line semimetal Zr5Pt3: a muon spin rotation and relaxation (μSR) study Abstract: In the present work, we demonstrate that C-doped Zr5Pt3 is an electron–phonon superconductor (with critical temperature TC = […]

Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021) Abstract: These recommendations are specifically for polymers and polymer systems showing a significant response to an electromagnetic field or one […]

Fabrication of Three-Dimensional Polymer-Brush Gradients within Elastomeric Supports by Cu0-Mediated Surface-Initiated ATRP Abstract: Cu0-mediated surface-initiated ATRP (Cu0 SI-ATRP) emerges as a versatile, oxygen-tolerant process to functionalize three-dimensional (3D), microporous supports forming single and multiple polymer-brush […]

Revisiting the structure of Heliannuol L: A computational approach Abstract: Recently, structural elucidation of natural products has undergone a revolution. The combined use of different modern spectroscopic methods has allowed obtaining a complete structural assignment […]

Magnetic Properties of a Polyfluorene Derivative Metallopolymer Containing Neodymium Ions Abstract: The magnetic properties of a polyfluorene derivative, {Poly[9,9’-dihexylfluorene-2,7-yl)-3,8-(1,10-phenanthroline)]} and its complexes with neodymium ions are explored and discussed in the light of the macromolecular […]

The potential of nanomaterials associated with plant growth-promoting bacteria in agriculture Abstract: The impacts of chemical fertilizers and pesticides have raised public concerns regarding the sustainability and security of food supplies, prompting the investigation of […]

Revealing the Nature of Defects in α-Ag2WO4 by Positron Annihilation Lifetime Spectroscopy: A Joint Experimental and Theoretical Study Abstract: Electron–matter coupling is a fascinating way to tune and modify the properties of materials. In this […]

Apoptosis and Oxidative Stress Triggered by Carbon Black Nanoparticle in the LA-9 Fibroblast Abstract: Background/aims: A new type of nanoparticle, called NP CB-EDA (Black Carbon modified with ethylenediamine), is commonly used in the oil industry. […]

A scalable electron beam irradiation platform applied for allotropic carbon transformation Abstract: The design of solid-state materials whose properties and functions can be manipulated in a controlled manner by the application of electron beam irradiation […]

Microwave-assisted hydrothermal synthesis of CuWO4-palygorskite nanocomposite for enhanced visible photocatalytic response Abstract: CuWO4-Pal nanocomposite formed by copper (II) tungstate nanoparticles with palygorskite clay mineral (Pal) was synthesized via coprecipitation method followed by microwave-assisted hydrothermal technique […]

Photoluminescence emissions of Ca1−xWO4:xEu3+: Bridging between experiment and DFT calculations* Abstract: In this work, the impact of the doping process on the photoluminescence emission of CaWO4 as a function of the concentration of Eu3+ cation […]

Increasing the photocatalytic and fungicide activities of Ag3PO4 microcrystals under visible-light irradiation Abstract: The present study reports for the first time the performance of silver phosphate (Ag3PO4) microcrystals as photocatalyst (degradation of Rodamine B-RhB) and […]

Synthesis of ZnWO4 by the polymerizable complex method: Evidence of amorphous phase coexistence during the phase formation process Abstract: In this paper, we report on a new path of ZnWO4 phase formation, synthesized by the […]

Surface-dependent photocatalytic and biological activities of Ag2CrO4: Integration of experiment and simulation Abstract: In this work, we present a joint experimental and theoretical study towards unveiling the photocatalytic (photodegradation of Rhodamine B), the antifungal (towards […]

Microwave assisted synthesis of silver nanoparticles and its application in sustainable photocatalytic hydrogen evolution Abstract: Large amounts of photocatalysts are needed for the generation of solar hydrogen (H2) and eco-friendly synthetic alternatives are essential. Here, […]

New Multi-Walled carbon nanotube of industrial interest induce cell death in murine fibroblast cells Abstract: The search for new nanomaterials has brought to the multifactorial industry several opportunities for use and applications for existing materials. […]

Uniaxial and Coaxial Electrospinning for Tailoring Jussara Pulp Nanofibers Abstract: Jussara pulp (Euterpe edulis Mart.) is rich in bioactive compounds known to be protective mediators against several diseases. In this context, nevertheless, anthocyanins, the most […]

Carbon Nanofibers versus Silver Nanoparticles: Time-Dependent Cytotoxicity, Proliferation, and Gene Expression Abstract: Carbon nanofibers (CNFs) are one-dimensional nanomaterials with excellent physical and broad-spectrum antimicrobial properties characterized by a low risk of antimicrobial resistance. Silver nanoparticles […]

Unraveling the relationship between bulk structure and exposed surfaces and its effect on the electronic structure and photoluminescent properties of Ba0.5Sr0.5TiO3: A joint experimental and theoretical approach Abstract: In this paper, we conducted a combined […]

A long-term controlled drug-delivery with anionic beta cyclodextrin complex in layer-by-layer coating for percutaneous implants devices Abstract: This study demonstrated a drug-delivery system with anionic beta cyclodextrin (β-CD) complexes to retain tetracycline (TC) and control […]

Evaluation of interfacial pH change during water splitting at pulsed regime using finite element method Abstract: Electrochemical water splitting is a well-known reaction, investigated since 1869 due to its wide applicability for different purposes. Despite […]

Sintering-driven effects on the band gap of (Pb,La)(Ti,Ni)O3 photovoltaic ceramics Abstract: In this work, the influence of the sintering temperature on the physical properties of (Pb0.8La0.2)(Ti0.9Ni0.1)O3 (PLT-Ni) ceramics is reported. The experimental data revealed that […]

Presence of excited electronic states on terbium incorporation in CaMoO4: Insights from experimental synthesis and first-principles calculations Abstract: We present a combined experimental and theoretical study to understand the structure and electronic and optical properties […]

Evaluation and characterization of edible carboxymethylcellulose biofilm containing chitosan nanoparticles and turmeric Abstract: The production of biofilms and polymeric coatings based on natural polymers in order to apply them as food packaging is constantly being […]

Towards anti-angiogenic activity of NiFe2O4 nanoparticles Abstract: In this study, NiFe2O4 nanoparticles (NPs) were prepared using the polymeric precursor method and calcined at 500°C for 4 h with (S– NiFe2O4) and without (NiFe2O4) CTAB as […]

Glycerol electro-oxidation at Pt in alkaline media: influence of mass transport and cations Abstract: Glycerol is an important biomass-derived product with potential to be applied on energy converting systems or as platform molecule in electrosynthesis. […]

Probing the Structural Dynamics of the Coil–Globule Transition of Thermosensitive Nanocomposite Hydrogels Abstract: Nanocomposite hydrogels have emerged to exhibit multipurpose properties, boosting especially the biomaterial field. However, the development and characterization of these materials can […]

Unraveling a Biomass-Derived Multiphase Catalyst for the Dehydrogenative Coupling of Silanes with Alcohols under Aerobic Conditions Abstract: Herein, a novel silver and chromium nanostructured N-doped carbonaceous material has been synthesized by a biomass-annealing approach using […]

Effect of temperature on ultrasonic spray pyrolysis method in zinc tungstate: The relationship between structural and optical properties Abstract: Zinc tungstate is an inorganic material which shows immense potential in diverse areas such as photoluminescence, […]

Cellulose nanofibers production using a set of recombinant enzymes Abstract: Cellulose nanofibers (CNF) are renewable and biodegradable nanomaterials with attractive barrier, mechanical and surface properties. In this work, three different recombinant enzymes: an endoglucanase, a […]

Magnetism and DFT calculations for understanding magnetic ground state of Fe doped Mn2O3 Abstract: In the present work, we have carried out experimental analysis along with first-principles density functional theory (DFT) calculations to understand the […]

Novel onion-like carbon structures modified with iron oxide as photocatalysts for the degradation of persistent pollutants Abstract: A new photocatalyst based on onion-like carbon structures has been designed by heat-treating a modified phenolic resin (PR) […]

Resistive switching and multiferroic behavior of La0.5Pr0.5FeO3 ferrite thin films Abstract: This study examines resistive switching behavior and magnetoelectric coupling in La0.5Pr0.5FeO3 thin films obtained through the polymeric precursor method at a temperature of 500 […]

Structure, Photoluminescence Emissions, and Photocatalytic Activity of Ag2SeO3: A Joint Experimental and Theoretical Investigation Abstract: In this paper, we report the synthesis of silver selenite (Ag2SeO3) by different methods [sonochemistry, ultrasonic probe, coprecipitation, and microwave-assisted […]

Tailoring the photoluminescence of BaMoO4 and BaWO4 hierarchical architectures via precipitation induced by a fast precursor injection Abstract: We investigate the effects of temperature and reaction time on structural, morphological, and optical properties of BaMoO4 and […]

Importance of profile of volatile and off-odors compounds from different recycled polypropylene used for food applications Abstract: Nowadays, polypropylene is one of the most common polymers used in the food packaging industry due to its […]

Crystallization Kinetics and Structure Refinement of CaTiO3 Glass-Ceramics Produced by Melt-Quenching Technique Abstract: Glass-ceramic materials were obtained by heat treatment (960 ºC for 2, 4, and 6 hs) of glasses with CaCO3 47.50 wt%-TiO2 23.75 […]

Multifunctional environmental applications of ZnO nanostructures synthesized by the microwave-assisted hydrothermal technique Abstract: Herein, we explore the multifunctional potential of ZnO nanostructures obtained via the microwave-assisted hydrothermal (MAH) method using a single synthesis route in […]

Short communication: Molecular architecture based on palladium-salen complex/graphene for low potential water oxidation Abstract: We have developed electrocatalytic platforms based on palladium metallopolymer-graphene for the water splitting reaction. The platforms presented a low potential for […]

Heterogeneous Fenton-like surface properties of oxygenated graphitic carbon nitride Abstract: The photo-Fenton activity of graphitic carbon nitride (g-C3N4) has been widely studied, nevertheless, its Fenton-like catalytic behavior in the dark has not yet been demonstrated. […]

HERisk: An improved spatio-temporal human health risks assessment software Abstract: Risk assessment is considered an essential tool to assist in the management and mitigation of polluted areas, especially those associated with economic activities that significantly […]

Tunable photoluminescence of CaCu3Ti4O12 based ceramics modified with tungsten Abstract: CaCu3Ti4O12 (CCTO): x% W (x = 0.00, 0.02, 0.05, 0.10, 2.50, and 5.00) powders were prepared via solid-state reaction. The effect of W addition in […]

Effects of donor density on power-law response in tin dioxide gas sensors Abstract: We investigated the power-law responses in two types of tin dioxide (SnO2) films: one made from nanosized grains and another from from […]

Facile preparation of ZnO:g-C3N4 heterostructures and their application in amiloride photodegradation and CO2 photoreduction Abstract: Semiconductor heterojunctions are interesting strategies for the development of efficient photocatalysts. In this paper we report the synthesis of ZnO:g-C3N4 heterostructures with different […]

Challenges in the context of single-use plastics and bioplastics in Brazil: A legislative review Abstract: Plastic has been present in our lives for the past century as an essential material for many commodity items. However, […]

A novel synthesis route to obtain magnetic nanocrystalline cobalt ferrite with photo-Fenton activity Abstract: A novel unconventional coprecipitation procedure (UCP) followed by a simple and fast microwave-assisted hydrothermal (MAH) treatment was used to synthesize a […]

Predicted Superconductivity in the Electride Li5C Abstract: Superconductivity under pressure is a very important research path for finding new superconductors, and electrides have been shown to present superconductivity under pressure. In the present work, using […]

UV–Vis spectrophotometry coupled to chemometric analysis for the performance evaluation of atrazine photolysis and photocatalysis Abstract:  In this study, a spectrophotometric-chemometric (Spec-Chem) approach was applied as an alternative to chromatography to monitor ATZ and by-products […]

Induced magnetization in Cu atoms at the Fe-Co/Cu3Au(001) interface: X-ray magnetic circular dichroism experiments and theoretical results Abstract: The induced magnetization in Cu atoms at the interface between ferromagnetic (FM) Fe/Co ultrathin films and a […]

Green and Chemical Silver Nanoparticles and Pomegranate Formulations to Heal Infected Wounds in Diabetic Rats Abstract: Infected cutaneous ulcers from diabetic rats with Candida albicans and Streptococcus aureus were treated with spray formulations containing green […]

Systematic review on lectin-based electrochemical biosensors for clinically relevant carbohydrates and glycoconjugates Abstract: Carbohydrates and glycoconjugates are involved in numerous natural and pathological metabolic processes, and the precise elucidation of their biochemical functions has been […]

Unconventional Disorder by Femtosecond Laser Irradiation in Fe2O3 Abstract: This paper demonstrates that femtosecond laser-irradiated Fe2O3 materials containing a mixture of α-Fe2O3 and εFe2O3 phases showed significant improvement in their photoelectrochemical performance and magnetic and […]

High-field/high-frequency EPR spectroscopy on synthetic melanin: on the origin of carbon-centered radicals Abstract: Among all the pigments found in nature, melanin has drawn considerable attention for bioelectronics applications as it contains a set of physicochemical […]

A new multifunctional two-dimensional monolayer based on silicon carbide Abstract: The family of two-dimensional materials is already a reality in the application of several technological devices. It is the motivation behind the search for unknown […]

Bioactive Ag 3 PO 4/Polypropylene Composites for Inactivation of SARS-CoV-2 and Other Important Public Health Pathogens Abstract: The current unprecedented coronavirus pandemic (COVID-19) is increasingly demanding advanced materials and new technologies to protect us and […]

From nature to organic (bio)electronics: a review on melanin-inspired materials Abstract: Melanin is a generic term evoked for a broad class of indole/quinone-based natural pigments, mainly known for its primary role in photoprotection. Throughout the […]

Tuning structural, optical, and gas sensing properties of ceria-based materials by rare-earth doping Abstract: In this study, we investigate the influence of rare-earth dopants on the structural, optical, gas sensing properties of Ce1-(3/4)xRExO2 (RE = […]

Surface and morphological studies of LiNbO3: p-type semiconductivity on stoichiometric surfaces Abstract: LiNbO3 is a semiconductor material employed in the development of several technological devices and processes. However, its suitability is expanded when p-type semiconductivity […]

PVC-SiO2-Ag composite as a powerful biocide and anti-SARS-CoV-2 material Abstract: The ongoing COVID-19 pandemic has pushed scientists and technologists to find novel strategies to develop new materials to prevent the transmission, spread, and entry of […]

Ozone detection in the ppt-level with rGO-ZnO based sensor Abstract: Although several studies have explored the rGO-ZnO nanocomposites gas sensing properties towards many gases, only a few are devoted to ozone detection. This paper explores […]

SISTEMA DE BAIXO CUSTO PARA EXECUÇÃO E MONITORAMENTO ON-LINE DE REAÇÕES FOTOCATALÍTICAS: APLICAÇÃO EM REDUÇÃO DE NITRO-FENOL Abstract: LOW-COST SYSTEM FOR ONLINE MONITORING OF PHOTOCALYTICAL REACTIONS: APPLICATION IN NITROPHENOL. There is a global concern with […]

Towards high-efficient chalcopyrite photocathodes for water splitting: the use of cocatalysts beyond Pt Abstract: Solar radiation is a renewable and clean energy source used in photoelectrochemical cells (PEC) to produce hydrogen gas as a powerful […]

DFT approaches unraveling the surface and morphological properties of MnMoO4 Abstract: The MnMoO4 is an environment-friendly semiconductor material with exciting properties and low cost to obtain highly employed supercapacitors. In this work, the α-MnMoO4 phase was investigated […]

Reoxidation of graphene oxide: Impact on the structure, chemical composition, morphology and dye adsorption properties Abstract: The chemical composition, oxidation degree, and sheet size strongly affect the properties of graphene oxide (GO). Therefore, much effort […]

Nanocomposite Materials Based on Electrochemically Synthesized Graphene Polymers: Molecular Architecture Strategies for Sensor Applications Abstract: The use of graphene and its derivatives in the development of electrochemical sensors has been growing in recent decades. Part […]

Photoelectrodeposition of Pt nanoparticles on Sb2Se3 photocathodes for enhanced water splitting Abstract: One of the biggest challenges around photochemical materials is to develop highly active and stable catalysts, if possible, with a simple synthesis methodology. […]

How Crystallization Affects the Oriented Attachment of Silver Nanocrystals Abstract: Oriented attachment processes between nanocrystals provide a promising route for the synthesis of mesocrystals that, although made of the same elements as their usual crystal […]

Structural, morphological and photoluminescence properties of β-Ag2MoO4 doped with Eu3+ Abstract: In this work, we report the investigation on β-Ag(2-3x)EuxMoO4 (x = 0.0; 0.0025; 0.005; 0.0075, and 0.01 mmol) materials prepared using the coprecipitation method. X-ray diffraction (XRD), Rietveld refinement […]

N-compounds speciation analysis in environmental samples using ultrasound-assisted solid-liquid extraction and non-chromatographic techniques Abstract: A fast, efficient, and non-chromatographic method was presented in this study for nitrite, nitrate, and p-nitrophenol (N-compounds) extraction and speciation analysis […]

Abstract: A HOMEMADE SPIN COATER BASED ON ELECTRONIC WASTE: A VERSATILE AND LOW COST ALTERNATIVE. High-precision equipment generally represents a significant portion of a laboratory budget, leading the access by laboratories with limited financial resources […]

Experimental and Theoretical Insights into the Structural Disorder and Gas Sensing Properties of ZnO Abstract: Recently, it was demonstrated that ZnO thin films sputtered under oxygen-rich atmospheres exhibit localized structural disorder with a significant impact […]

SiO2-Ag Composite as a Highly Virucidal Material: A Roadmap That Rapidly Eliminates SARS-CoV-2 Abstract: COVID-19, as the cause of a global pandemic, has resulted in lockdowns all over the world since early 2020. Both theoretical […]

Semiconductor Photoelectroanalysis and Photobioelectroanalysis: A Perspective Abstract: Electrochemical sensor signal output, when recorded as a current, is primarily related to the target analyte concentration, but often also related to additional experimental or control parameters. When […]

Selective Synthesis of α-, β-, and γ-Ag2WO4 Polymorphs: Promising Platforms for Photocatalytic and Antibacterial Materials Abstract: Silver tungstate (Ag2WO4) shows structural polymorphism with different crystalline phases, namely, orthorhombic, hexagonal, and cubic structures that are commonly […]

Role of Surfaces in the Magnetic and Ozone Gas-Sensing Properties of ZnFe2O4 Nanoparticles: Theoretical and Experimental Insights Abstract: The magnetic properties and ozone (O3) gas-sensing activity of zinc ferrite (ZnFe2O4) nanoparticles (NPs) were discussed by the […]

An experimental and theoretical approach on stability towards hydrolysis of triethyl phosphate and its effects on the microstructure of sol-gel-derived bioactive silicate glass Abstract: The sol-gel method is versatile and one of the well-established synthetic […]

O Centro de Desenvolvimento de Materiais Funcionais (CDMF) agradece e deseja aos seus pesquisadores, colaboradores e parceiros um novo ano de conquistas e realizações. Que todas as dificuldades de 2020 sejam superadas e tenhamos todos […]