Artigos 2019

Use of Ionic Liquid as Template for Hydrothermal Synthesis of the MCM-41 Mesoporous Material Abstract: In this study the MCM-41 mesoporous material was first prepared by using hydrothermal method in the presence of 1-butyl-2,3-dimethylimidazolium hexafluorophosphate […]

First Comprehensive Report of Clinical Fusarium Strains Isolated in the State of Sao Paulo (Brazil) and Identified by MALDI-TOF MS and Molecular Biology Abstract: The aim of this study was to compare the performance of […]

Joint Theoretical and Experimental Study on the La Doping Process in In2O3: Phase Transition and Electrocatalytic Activity Abstract: In2O3 and La3+-doped In2O3 nanostructures were synthesized through a facile and fast chemical route based on the microwave-assisted hydrothermal […]

Palladium Doping of In2O3 towards a general and selective catalytic hydrogenation of amides to amines and alcohols Abstract: Herein, the first general heterogeneous catalytic protocol for the hydrogenation of primary, secondary and tertiary amides to […]

Understanding the White-Emitting CaMoO4 Co-Doped Eu3+, Tb3+, and Tm3+ Phosphor through Experiment and Computation Abstract: In this article, the synthesis by means of the spray pyrolysis method, of the CaMoO4 and rare-earth cation (RE3+)-doped CaMoO4:xRE3+ […]

Understanding segregation processes in SAMs formed by mixtures of hydroxylated and non-hydroxylated fatty acids Abstract: In this paper, we focus on the segregation processes emerging when preparing mixtures with different compositions of aleuritic (9,10,16 trihydroxyhexadecanoic) […]

Tailoring the Bactericidal Activity of Ag Nanoparticles/α-Ag2WO4 Composite Induced by Electron Beam and Femtosecond Laser Irradiation: Integration of Experiment and Computational Modeling Abstract: In nanotechnology research, significant effort is devoted to fabricating patterns of metallic […]

Towards carbon monoxide sensors based on europium doped cerium dioxide Abstract: Ce1-(3/4)xEuxO2 (x = 0.00 and x = 0.08) thick films were prepared from nanoparticles synthesized by the microwave-assisted hydrothermal route, aiming their application as a carbon monoxide sensing material to […]

Portable Laboratory Platform With Electrochemical Biosensors for Immunodiagnostic of Hepatitis C Virus Abstract: This paper presents a portable laboratory platform (PLP) with electrochemical amperometric biosensors for the detection of hepatitis C virus (HCV). This PLP […]

Investigation on the photocatalytic performance of Ag4P2O7 microcrystals for the degradation of organic pollutants Abstract: The silver-based metal oxides have been considered good photocatalysts for the removal of organic dyes in wastewater treatments. In our […]

Synergistic effect of reduced graphene oxide/azo-polymer layers on electrochemical performance and application as nonenzymatic chemiresistor sensors for detecting superoxide anion radicals Abstract: The present paper describes a nonenzymatic chemiresistor sensor based on an azo-polymer and […]

Reprocessing and Solid State Polymerization on Contaminated Post-consumer PET: Thermal and Crystallization Behavior Abstract: This investigation deals with the exposition of poly (ethylene terephthalate) to a series of surrogates following protocol recommended by United States […]

Unveiling the efficiency of microwave-assisted hydrothermal treatment for the preparation of SrTiO3 mesocrystals Abstract: Material processing has become essential for the proper control, tuning and consequent application of the properties of micro/nanoparticles. In this case, […]

Structural and optical properties of a mechanically alloyed thermoelectric lamellar SnSeS solid solution Abstract: A chalcogenide SnS2-xSex alloy with x = 1, synthesized by high-energy mechanical alloying, was characterized by high-resolution transmission electron microscopy, X-ray […]

Zika Virus After Emergency Response: Can the ICF Guide Rehabilitation of Children With Microcephaly? Abstract: The outbreak of Zika in Brazil almost 3 years ago had harmful medical, financial, and social consequences for children and […]

Tb3+/Pr3+ co-doped ZnMoO4 phosphor with tunable photoluminescence and energy transfer processes Abstract: ZnMoO4:Tb3+, Pr3+ particles in different Tb:Pr ratios (2:0, 1.5:0.5, 1:1, 0.5:1.5 and 0:2) were synthesized by the sonochemical method. These materials were characterized […]

Quantitative evaluation of the surface stability and morphological changes of Cu2O particles Abstract: Cu2O low-index surfaces periodic models have been simulated based on density functional theory. The calculated surfaces energies allowed estimating the morphology by […]

Facile One-Step Electrodeposition Fabrication of Amorphous MoS2 Catalysts in Titanium for Hydrogen Evolution Reaction Abstract: Hydrogen is seen as a future energy carrier that will assist the global energy fuel demand. However. it is still […]

Temperature dependence on phase evolution in the BaTiO3 polytypes studied using ab initio calculations Abstract: Identifying the forces that drive a temperature-induced phase transition is always challenging in the prospect of the first-principles methods. Herein, […]

SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid Abstract: Ionic liquids (ILs) 1-butyl-3-methylimidazolium hydrogensulfate (BMI center dot HSO4), 1-butylimidazole hydrogensulfate (BImH center dot HSO4) and 3-triethylammonium propane sulfonic hydrogensulfate (TEA-PS center dot HSO4) were […]

Mechanical, thermal, and morphological properties of natural rubber/45S5 Bioglass (R) fibrous mat with ribbon-like morphology produced by solution blow spinning Abstract: Natural rubber (NR)/45S5 Bioglass (R) (BG) based fibrous mat biocomposite were fabricated using a […]

Promotion of bone repair of rabbit tibia defects induced by scaffolds of P(VDF-TrFE)/BaTiO3 composites Abstract: In this work, scaffolds made of a novel experimental 0-3 type composite were implanted onto non-critical defects in rabbit tibiae. […]

Early diagnosis of Zika infection using a ZnO nanostructures-based rapid electrochemical biosensor Abstract: In this work, we report a develop of electrochemical immunosensor based on ZnO nanostructures immobilized with ZIKV-NS1 antibody on Printed Circuit Board […]

Saccharomyces cerevisae microfiltration performance of polycarbonate membranes containing chitosan-based polyelectrolyte complexes Abstract: Polyelectrolyte complexes (PECs) were prepared using chitosan and sulfonated poly(ethylene terephthalate) by the mixture method. Fourier transform infrared spectroscopy, zeta potential, X-ray diffraction, […]

Synthesis of functionalized mesoporous material from rice husk ash and its application in the removal of the polycyclic aromatic hydrocarbons Abstract: The rice husk ash (RHA) was used as an alternative source of silica for […]

Corrosion and tribocorrosion behaviour of titanium nitride thin films grown on titanium under different deposition times Abstract: Ti and its alloys exhibit combination of unique properties for biomedical applications, however their poor tribo-electrochemical behaviour is […]

SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid Abstract: Ionic liquids (ILs) 1-butyl-3-methylimidazolium hydrogensulfate (BMI center dot HSO4), 1-butylimidazole hydrogensulfate (BImH center dot HSO4) and 3-triethylammonium propane sulfonic hydrogensulfate (TEA-PS center dot HSO4) were […]

Theoretical-experimental evaluation of the photocatalytic activity of KCa2Ta3-xNbxO10 Abstract: KCa2Ta3 xNbxO10 samples were synthesized by solid-state reaction and evaluated on the hydroxylation of terephthalic acid under UVC irradiation. Computational simulations via DFT were carried out […]

Sintering of translucent and single-phase nanostructured scandia-stabilized zirconia Abstract: Fully-dense and single-phase nanostructured scandia-stabilized zirconia specimens were produced by high-pressure spark plasma sintering technique. Nanocrystalline powders were prepared by the copre-cipitation method. Green pellets were […]

Influence of polymer insertion on the dielectric, piezoelectric and acoustic properties of 1-0-3 polyurethane/cement-based piezo composite Abstract: Cement/polyurethane based piezo composite was fabricated with 1-0-3 connectivity. Microstructural analysis shows that polyurethane (PU) acts as a […]

Role of Ti-Ru interaction in SrTi0.5Ru0.5O3: Physical properties, x-ray spectroscopy, and cluster model calculations Abstract: We have performed a systematic study of the physical properties and electronic structure of SrTiO3, SrTi0.5Ru0.5O3, and SrRuO3. For the […]

Promotion of bone repair of rabbit tibia defects induced by scaffolds of P(VDF-TrFE)/BaTiO3 composites Abstract: In this work, scaffolds made of a novel experimental 0-3 type composite were implanted onto non-critical defects in rabbit tibiae. […]

Anti-bacterial efficacy via drug-delivery system from layer-by-layer coating for percutaneous dental implant components Abstract: Percutaneous medical devices are prone to bacterial contamination that causes dramatic clinical conditions. At the percutaneous level of dental implant systems, microbial […]

Effect of sepiolite on the quiescent and non-quiescent crystallization behaviour of the biodegradable poly(lactic acid) prepared via casting and melting Abstract: Poly(lactic acid) (PLA) is one of the most extensively investigated and used aliphatic polyesters due […]

Fast and simultaneous doping of ST0.9-x-y-zCa0.1In2O4:(xEu(3+), yTm(3+), zTb(3+)) superstructure by ultrasonic spray pyrolysis Abstract: In the present work, Sr0.9-x-y-zCa0.1In2O4:(xEu(3+), yTm(3+), zTb(3+)) particles were synthesized by the ultrasonic spray pyrolysis (USP) method to obtain a single-phase white […]

Sonochemical time standardization for bioactive materials used in periimplantar defects filling Abstract: The aim of this study was determinate the best sonochemical time in order to obtain better bone characteristics when a bioactive material (Biogran) is […]

Spin-phonon coupling in uniaxial anisotropic spin-glass based on Fe2TiO5 pseudobrookite Abstract: The ferric pseudobrookite is a rare example of uniaxial anisotropic spin-glass insulator, depicting a multiglass behavior and magnetoelectric coupling. Here, we present Raman spectroscopy results […]

Influence of defects on photoluminescent and photocatalytic behavior of CaO/SrTiO3 heterojunctions Abstract: CaO/SrTiO3 heterostructures were fabricated, and their photocatalytic activity for the discoloration of Rhodamine B (RhB) dye was evaluated. SrTiO3 particles were obtained via a […]

Blood droplets on functionalized surfaces: Chemical, roughness and superhydrophobic effects Abstract: This manuscript reports the phenomenology of blood-material interface assessed by contact angle measurements and Raman spectroscopy. In particular, chemistry, topology and superhydrophobic effects on the […]

Superconductor YBa2Cu3-xNixO7-delta compounds prepared by electrospinning Abstract: This work describes the synthesis and characterization of YBa2Cu3-xNixO7-delta (0.00 <= x <= 0.04) compounds prepared by an electrospinning technique. Stoichiometric solutions of Y-Ba-Cu-Ni were used to electrospin nanowires […]

Improved densification and ionic conductivity in flash-sinteredgamma-ray irradiated yttria-stabilized zirconia Abstract: Experiments on electric field-assisted pressureless sintering were conducted, with a dilatometer connected to a power supply, in zirconia: 8 mol% yttria polycrystalline ceramics exposed […]

Morphological aspects and optical properties of Ag4P2O7 Abstract: The structural, morphological and optical properties of silver pyrophosphate (Ag4P2O7) powders were investigated in detail. This material was synthesized by chemical precipitation (CP), conventional hydrothermal and microwave-assisted hydrothermal. […]

Ruthenium-Catalyzed Oxidative Amidation of Alkynes to Amides Abstract:  Complex CpRuCl(PPh3)(2) catalyzes reactions of terminal alkynes with 4-picoline N-oxide and primary and secondary amines to afford the corresponding amides. The reactions occur in chlorinated solvent and aqueous […]

Parallel magnetic anisotropy in few layers MoS2 films Abstract: Many efforts have been made recently to develop new materials that can be applied in more efficient data storage devices, such as 2D magnetic materials. MoS2 is the […]

Theoretical and Experimental Investigation of 2D Hematite Abstract: Novel two-dimensional non-van der Waals materials have been reported, boosting efforts to probe their properties and identify key applications. In this work, we report the synthesis, by means […]

Syngas for Fischer-Tropsch synthesis by methane tri-reforming using nickel supported on MgAl2O4 promoted with Zr, Ce and Ce-Zr Abstract:  Nickel catalysts supported on magnesium aluminate promoted with ZrO2, CeZrO2 and CeO2 were evaluated under methane tri-reforming […]

Portable Laboratory Platform With Electrochemical Biosensors for Immunodiagnostic of Hepatitis C Virus Abstract: This paper presents a portable laboratory platform (PLP) with electrochemical amperometric biosensors for the detection of hepatitis C virus (HCV). This PLP […]

Flower-like ZnO/ionic liquid composites: structure, morphology, and photocatalytic activity Abstract: Two ionic liquids (ILs) with different alkyl chains, 1-butyl-3-methylimidazolium chloride (BMI. Cl) and 1-hexadecyl-3methylimidazolium chloride (C16MI. Cl), were incorporated into ZnO particles using the microwave-assisted hydrothermal […]

Flash Sintering Samaria-Doped Ceria–Carbon Nanotube Composites Abstract: Composite ceramic green pellets were prepared by attrition milling a mixture of (CeO2)0.8(Sm2O3)0.2 (samaria-doped ceria, SDC) ceramic powder and carbon nanotubes (CNTs), followed by uniaxial and isostatic pressing. The […]

UV-assisted chemiresistors made with gold-modified ZnO nanorods to detect ozone gas at room temperature Abstract: Two kinds of flexible ozone (O-3) sensors were obtained by placing pristine ZnO nanorods and gold-modified ZnO nanorods (NRs) on a […]

DBSA to improve the compatibility, solubility, and infusibility of cellulose nanowhiskers modified by polyaniline in reinforcing a natural rubber-based nanocomposite Abstract: In this study, the authors evaluate the potential of the reinforcement of cellulose nanowhiskers coated […]

Exposure effects of endotoxin-free titanium-based wear particles to human osteoblasts Abstract: Titanium-based materials are widely employed by the biomedical industry in orthopedic and dental implants. However, when placed into the human body, these materials are highly […]

Crystallization mechanism and kinetics of a Fe-diopside (25CaO center dot 25MgO center dot 50SiO(2)) glass-ceramic Abstract: Diopside-based ceramics and glass-ceramics have been studied because of their applications in electronics and biomedicine. However, since diopside glass presents […]

In vitro Evidence of Human Immune Responsiveness Shows the Improved Potential of a Recombinant BCG Strain for Bladder Cancer Treatment Abstract: The live attenuated mycobacterial strain BCG, in use as vaccine against tuberculosis, is considered the […]

Electrodeposition Conditions Effect Sb2Se3 Thin-Film Properties Abstract: Sb2Se3 is presented as a promising light absorber material of low-cost and good photoelectrocatalytic activity. Among the different synthetic methods for this semiconductor, electrodeposition has gained attention. In this […]

Fast and continuous obtaining of Eu3+ doped CeO2 microspheres by ultrasonic spray pyrolysis: characterization and photocatalytic activity Abstract: In this work, CeO2:xEu(3+) (x=0, 0.01, 0.02, 0.04 and 0.08mol%) microspheres were obtained by the fast and continuous […]

Proof-of-Concept Studies Directed toward the Formation of Metallic Ag Nanostructures from Ag3PO4 Induced by Electron Beam and Femtosecond Laser Abstract: In this work, for the first time, the instantaneous nucleation and growth processes of Ag nanoparticles […]

Unraveling the Role of Sn Segregation in the Electronic Transport of Polycrystalline Hematite: Raising the Electronic Conductivity by Lowering the Grain-Boundary Blocking Effect Abstract: This paper describes the role of SnO2 in the electronic transport of […]

Evaluation of cryo-treatment in the luminescent properties of PVDF/Eu2O3 composite obtained by using buriti oil as additive Abstract:  Polymeric matrices containing luminescent particles find many applications like temperature sensor platforms. However, it is important to understand […]

Inexpensive methodology for obtaining flexible SnO2-single-walled carbon nanotube composites for lithium-ion battery anodes Abstract: A versatile and low-cost methodology for fabricating free-standing carbon graphite (CG)/SnO2/single-walled carbon nanotube (SWCNT) composites as anode material for lithium-ion batteries is […]

Environmental remediation properties of Bi2WO6 hierarchical nanostructure: A joint experimental and theoretical investigation Abstract: In this work, different structures of Bi2WO6 (BWO) were synthesized using a template-assisted microwave process. The BWO samples were characterized using various […]

Highly selective ozone gas sensor based on nanocrystalline Zn0.95Co0.05O thin film obtained via spray pyrolysis technique Abstract: Chemiresistors are highly important for monitoring and detection of harmful gases produced from industrial processes and vehicle emissions. We […]

Oxidative dehydrogenation of ethylbenzene to styrene over the CoFe2O4-MCM-41 catalyst: preferential adsorption on the O2-Fe3+O2- sites located at octahedral positions Abstract: The present study describes the catalytic performance of cobalt ferrite supported on MCM-41 for the […]

Effect of different synthesis methods on the morphology, optical behavior, and superior photocatalytic performances of Ag3PO4 sub-microcrystals using white-light-emitting diodes Abstract:  In this paper, we report on the superior photocatalytic properties of silver orthophosphate (Ag3PO4) sub-microcrystals […]

Controlling parameters and characteristics of electrochemical biosensors for enhanced detection of 8-hydroxy-2 ‘-deoxyguanosine Abstract:  This work discusses the parameters and characteristics required on the development of a scalable and reliable electrochemical sensor board for detecting 8-hydroxy-2′-deoxyguanosine […]

Alpha-AgVO3 Decorated by Hydroxyapatite (Ca-10(PO4)(6)(OH)(2)): Tuning Its Photoluminescence Emissions and Bactericidal Activity Abstract: Defect-related luminescent materials have attracted interest because of their excellent optical properties and are considered as a less expensive and nontoxic alternative to […]

Evaluation of rice husk ash in adsorption of Remazol Red dye from aqueous media Abstract: The rice husk ash (RHA) extracted from the rice husk (RH) was measured on the removal of the Remazol Red dye. […]

Abstract: The density functional theory has become increasingly common as a methodology to explain the properties of crystalline materials because of the improvement in computational infrastructure and software development to perform such computational simulations. Although […]

Controlling the Electronic, Structural, and Optical Properties of Novel MgTiO3/LaNiO3 Nanostructured Films for Enhanced Optoelectronic Devices Abstract: This study systematically investigated the electronic, structural, and optical properties of MgTiO3 (MTO), LaNiO3 (LNO), and MgTiO3/LaNiO3 (MTO/LNO) nanostructured […]

Green synthesis of colloidal gold nanoparticles using latex from Hevea brasiliensis and evaluation of their in vitro cytotoxicity and genotoxicity Abstract: Latex extracted from Hevea brasiliensis tree has been used as a green alternative for preparing […]

Solution blow spinning control of morphology and production rate of complex superconducting YBa2Cu3O7-x nanowires Abstract: Nanostructured materials have the potential to be applied in different areas ranging from electronics to medicine. Techniques for preparation of nanomaterials […]

Low-temperature plasma on peri-implant-related biofilm and gingival tissue Abstract: Background Evaluate the effect of low-temperature plasma (LTP) on an anaerobic biofilm and on the biological response of an in vitro reconstituted gingival epithelium tissue. Methods Porphyromonas […]

Investigation of the electrocatalytic activity for ethanol oxidation of Pt nanoparticles modified with small amount (<= 5 wt%) of CeO2 Abstract: Pt is still the state of the art electrocatalyst for the oxidation of ethanol but […]

Nanomechanical and microstructural characterization of a zirconia-toughened alumina composite after aging Abstract: This study’s objective was to mechanically characterize and validate the synthesis method of a polycrystalline composite comprised of 80% alumina reinforced with 20% translucent […]

New dmso-ruthenium catalysts bearing N-heterocyclic carbene ligands for the ring-opening metathesis of norbornene Abstract: Novel dimethyl sulfoxide ruthenium(ii) complexes of N-heterocyclic carbenes [RuCl2(S-dmso)(2)(SIMes)] (1), [RuCl2(S-dmso)(2)(IMes)], (2) [RuCl2(S-dmso)(2)(SIDip)] (3), and [RuCl2(S-dmso)(2)(IDip)] (4) were successfully synthesized. The complexes […]

Sisal cellulose and magnetite nanoparticles: formation and properties of magnetic hybrid films Abstract: In this study, sisal cellulose/magnetite-nanoparticle (Fe3O4 NPs; 0.5,1.4, and 3.0 g L-1) hybrid films (denoted as FCFe0.5, FCFe1.4, and FCFe3.0, respectively) were prepared […]

Decreasing Nanocrystal Structural Disorder by Ligand Exchange: An Experimental and Theoretical Analysis Abstract: Nanocrystals (NCs) present unique physicochemical properties arising from their size and the presence of ligands. Comprehending and controlling the ligand-crystal interactions as well […]

Ag Nanoparticles/α-Ag2WO4 Composite Formed by Electron Beam and Femtosecond Irradiation as Potent Antifungal and Antitumor Agents Abstract: The ability to manipulate the structure and function of promising systems via external stimuli is emerging with the development […]

Photovoltaic Sub-Module With Optical Sensor for Angular Measurements of Incident Light Abstract: This paper presents a photovoltaic (PV) sub-module with an optical sensor for angular measurements of incident light. The optical sensor is a CMOS microdevice […]

Photoelectrochemical degradation of bisphenol A using Cu doped WO3 electrodes Abstract: Cu-doped WO3 electrode was fabricated on FTO substrate via one step preparation by modified sol-gel method using a suspension of [(NH4)(10)H-2(W2O7)(6)] and CuSO4 center dot […]

Influence of the spark-plasma texturing conditions on the intragranular features of Bi-2223 ceramic samples Abstract: The influence of the spark-plasma texturing (SPT) conditions on the intragranular superconducting properties of Bi1.65Pb0.35Sr2Ca2Cu3O10+ (Bi-2223) samples has been investigated. Also, […]

Theoretical Study of the Structural Properties of the Lead Titanate Doped with Strontium Abstract: Combined experimental and theoretical approach to investigate the structural and electronic properties to Sr-doping lead titanate (PT:Sr) was carry out. It is […]

Favoring the Reactivity of TiO2 Films with Ideal Arrangement of Anatase and Rutile Crystallites Abstract: It is shown that there are deposition conditions in reactive sputtering of TiO(2 )in which the anatase and rutile crystals can […]

The effect of alkyl chain of the imidazolium ring on the poly(o-methoxyaniline)/ionic liquid supercapacitor performance Abstract:  New materials can be developed using a known compound with enhanced properties modifying and controlling its microstructure, morphology, and density […]

Sintering evaluation of doped lanthanum gallate based on thermodilatometry Abstract: The sintering behavior of La0.9Sr0.1Ga0.8Mg0.2O3-delta oxide-ion conductor was systematically investigated by thermodilatometry. The shrinkage data obtained with heating rates of 4, 7, 10 and 12 degrees […]

Laser and electron beam-induced formation of Ag/Cr structures on Ag2CrO4 Abstract: The interactions of silver chromate (Ag2CrO4) with a femtosecond (fs) laser and electron beam irradiations were investigated. For the first time, the growth and coalescence […]

Magnetic properties of a polyfluorene derivative containing complexed neodymium ions Abstract: Poly[9,9 ‘-dihexylfluorene-2,7-diyl)-6,6 ”-(2,2 ‘:6 ‘,2 ”-terpyridine)] (LaPPS75) and its complexes with neodymium were synthesized and characterized. Magnetic measurements showed that the noncomplexed polymer presented a […]

Physicochemical characterization of albumin immobilized on different TiO2 surfaces for use in implant materials Abstract: Osseointegration process may be defined as the structural and functional connection between living bone and the surface of an implant, promoting […]

Effect of synthetic colloidal nanoparticles in acrylic resin of dental use Abstract: Acrylic resin employed in dental materials can act as substrate for microorganisms’ adhesion and biofilm formation. To overcome this, silver nanoparticles (AgNPs) were combined […]

Photoluminescent and antimicrobial properties of silver-doped indium hydroxide synthesized by one-step microwave-assisted hydrothermal method Abstract: Silver-doped indium hydroxide In(1-x)(OH)(3):Ag-x (with x = 0, 1, 2, 4, and 8 mol %) of Ag nanoparticles were synthesized by […]

Synthesis, characterization and application of Ag doped ZnO nanoparticles, in a composite resin Abstract:  The biofilm accumulation over the composite resin restorations can contribute to the formation of secondary caries. In this way, antibacterial restorative composite […]

In Situ Growth of Bi Nanoparticles on NaBiO3, delta-, and beta-Bi2O3 Surfaces: Electron Irradiation and Theoretical Insights Abstract: Herein, we present a combined experimental and theoretical study of the in situ growth of Bi nanoparticles on […]

Influence of deposition parameters on the structure and microstructure of Bi12TiO20 films obtained by pulsed laser deposition Abstract: The structure, morphology and surface roughness of Bi12TiO20 (BTO) thin films grown on R-sapphire by pulsed laser deposition […]

Synthesis of Y2BaCuO5 nano-whiskers by a solution blow spinning technique and their successful introduction into single-grain, YBCO bulk superconductors Abstract:  The ability of single grain Y-Ba-Cu-O (YBCO) bulk superconductors to trap large magnetic fields is due […]

Identification of Common Resonant Lines in the EPR Spectra of Melanins Abstract:  Melanins are natural pigments with promising bioelectronic applications. Among their unique properties, the existence of a persistent paramagnetic signal can be considered one of […]

Eff ect of mass transport on the glycerol electro-oxidation Abstract: The search for greener energy sources has led to the development of biodiesel. One of its by-product, glycerol, is usually converted into more valuable products by […]

Exploring the Properties of Niobium Oxide Films for Electron Transport Layers in Perovskite Solar Cells Abstract: In this work, niobium oxide films were deposited by reactive magnetron sputtering under different oxygen flow rate and applied as […]

Preparation and Characterization of Polymeric Microfibers of PLGA and PLGA/PPy Composite Fabricated by Solution Blow Spinning Abstract:  In this study, microfibers of poly(L-lactic-co-glycolic acid) (PLGA) and PLGA/polypyrrole (PPy) composite (90/10 wt%) are produced by using the […]

Biocompatible PCL/PLGA/Polypyrrole Composites for Regenerating Nerves Abstract:  In the field of regenerative medicine, many studies have focused on regenerating peripheral nerves because clinical problems and functional loss of organs are affecting an increasing number of people. […]

3-Mercaptopropionic acid functionalization of titanium dioxide thin films Abstract: Nanostructured titanium dioxide (TiO2) films are commonly employed as surface modifiers on medical and dental metallic implants, presenting promising results related to interactions with living tissues, promoting […]

Photocatalytic Properties under Sunlight of Heterostructures AgCl/CuO Obtained by Sonochemical Method Abstract: AgCl/CuO heterostructures were synthesized via a sonochemical method. AgCl/CuO molar compositions of 1:1 and 2:1 were prepared, respectively. Such compositions were prepared using three […]

Structural, electronic and mechanical properties of single-walled AlN and GaN nanotubes via DFT/B3LYP Abstract:  Density functional theory with B3LYP hybrid functional and all-electron basis set was applied to study the AlN (SWAlNNTs) and GaN (SWGaNNTs) single-walled […]

Nanostructured ZnS:Cu phosphor: Correlation between photoluminescence properties and local structure Abstract:  Zinc sulfide (ZnS) is a II-VI inorganic semiconductor material and has received remarkable attention because of fundamental physical properties, versatility, nontoxicity, chemical stability and has […]

Luminescence properties of alpha-Ag2WO4 nanorods co-doped with Li+ and Eu3+ cations and their effects on its structure Abstract:  Nanorods of the formula alpha-(Ag2-3x-yEuxLiy)WO4 (where x = 0.01 y = 0.01-0.03 mol) were efficiently synthesized via a […]

SrSnO3 perovskite obtained by the modified Pechini method-Insights about its photocatalytic activity Abstract:  The use of SrSnO3 as a photocatalyst in different applications has been growing in recent years, particularly for degradation of organic dyes. In […]

Encapsulation of collagenase within biomimetically mineralized metal-organic frameworks: designing biocomposites to prevent collagen degradation Abstract: A growing class of multifunctional porous materials termed metal-organic frameworks (MOFs) has attracted attention for immobilization of biomolecules via self-assembly of […]

Effect of Fluoride Toothpaste Containing Nano-Sized Sodium Hexametaphosphate on Enamel Remineralization: An in situ Study Abstract: Objective: To evaluate the remineralizing potential of a conventional toothpaste (1,100 ppm F) supplemented with nano-sized sodium hexametaphosphate (HMPnano) in […]

A new approach for Y-TZP surface treatment: evaluations of roughness and bond strength to resin cemen Abstract: Objective: This study aims to evaluate the effect of sonochemical treatment on the surface of yttria-stabilized tetragonal zirconia (Y-TZP) […]

Construction and demolition waste in concrete: property of pre-molded parts for paving Abstract: Abstract Construction and demolition waste (CDW) production is a growing factor on a global scale and its incorrect disposal becomes an increasingly common […]

A Chemiresistor Sensor Based on Azo-Polymer and Graphene for Real-Time Monitoring of Mitochondrial Oxygen Consumption Abstract: In the present study, a chemiresistor sensor based on a poly(Bismarck Brown Y)-reduced graphene oxide nanocomposite was developed to analyze […]

Analysis of the electrical conduction in percolative nanocomposites based on castor-oil polyurethane with carbon black and activated carbon nanopowder Abstract: Flexible nanocomposite films derived from castor-oil polyurethane (PUR) and conductive fillers of activated carbon nanopowder (CNP) […]

Towards the production of natural rubber-calcium phosphate hybrid for applications as bioactive coatings Abstract: This paper assesses the morphological, structural and bio-physicochemical stability of natural rubber (NR) Hevea brasiliensis coatings incorporated with microparticles of calcium phosphate-based […]

Atomic Diffusion Induced by Electron-Beam Irradiation: An in Situ Study of Ag Structures Grown from alpha-Ag2WO4 Abstract: In this paper, we investigate the structural and morphological changes caused by the electron-beam irradiation that led to the […]

Early diagnosis of Zika infection using a ZnO nanostructures-based rapid electrochemical biosensor Abstract: In this work, we report a develop of electrochemical immunosensor based on ZnO nanostructures immobilized with ZIKV-NS1 antibody on Printed Circuit Board […]

Controlling parameters and characteristics of electrochemical biosensors for enhanced detection of 8-hydroxy-2′-deoxyguanosine Abstract: This work discusses the parameters and characteristics required on the development of a scalable and reliable electrochemical sensor board for detecting 8-hydroxy-2′-deoxyguanosine (8-OHdG), […]

Connecting Theory with Experiment to Understand the Sintering Processes of Ag Nanoparticles Abstract: A complementary combination of long-time atomistic molecular dynamics simulations and real-time transmission electron microscopy (TEM) images has been utilized for unraveling, at an […]

Oxygen diffusion and vacancy migration thermally-activated govern high-temperature magnetism in ceria Abstract: Several experimental works currently demonstrate that metallic nano-oxides and carbon nanomaterials expected to be diamagnets, in fact, behave as ferromagnets at room temperature. […]

Investigation on acid functionalization of double-walled carbon nanotubes of different lengths on the development of amperometric sensors Abstract: Double-walled carbon nanotubes (DWCNTs) of different length were submitted to acid functionalization and investigated as chemical modifiers on […]

Photoluminescent properties in perylene PVD films: Influence of molecular aggregates and supramolecular arrangement Abstract: Organic thin films are at the forefront of basic studies and applications in the field of physics, chemistry, biochemistry and materials science. […]

Towards enhancing the magnetic properties by morphology control of ATiO(3) (A = Mn, Fe, Ni) multiferroic materials Abstract: Magnetic materials are of great interest due to their widespread applications in various technologies. Precise control of different […]

Physicochemical bisphosphonate immobilization on titanium dioxide thin films surface by UV radiation for bio-application Abstract: Titanium and its alloys have been routinely used to replace bone and teeth. This success is mainly due to their […]

Expansion and Diversification of MFS Transporters in Kluyveromyces marxianus Abstract: In yeasts, proteins of the Major Superfamily Transporter selectively bind and allow the uptake of sugars to permit growth on varied substrates. The genome of brewer’s […]

Order-disorder phenomena and octahedral tilting in SrTi1-xSnxO3 perovskites – A structural and spectroscopic study Abstract: Oxides of the type SrTi1-xSnxO3 have been prepared using both a solid state and polymeric precursor method and characterized using high-resolution Synchrotron X-ray […]

Titanium dioxide and modified titanium dioxide by silver nanoparticles as an anti biofilm filler content for composite resins Abstract:  Objective: The aim of this study was to evaluate the antibacterial activity of a composite resin modified […]

Geometry, electronic structure, morphology, and photoluminescence emissions of BaW1-xMoxO4 (x=0, 0.25, 0.50, 0.75, and 1) solid solutions: Theory and experiment in concert Abstract: The design of a solid solution with tunable electro-optical properties and multifunctionality […]

Effects of strain, defects and crystal phase transition in mechanically milled nanocrystalline In2O3 powder Abstract: In this paper, we investigated structural, optical and magnetic properties of mechanically milled In2O3 nanoparticles in the cubic bixbyite phase. It was observed […]

Rare earth doped silver tungstate for photoluminescent applications Abstract: Luminescent materials of different emission colors are of great interest for development of new or more efficient optical devices. Although many materials have been reported using different approach, green […]

Conformational study of the electronic interactions and nitric oxide release potential of new S-nitrosothiols esters derivatives of ibuprofen, naproxen and phenyl acids substituted (SNO-ESTERS): Synthesis, infrared spectroscopy analysis and theoretical calculations Abstract: The conformational study on […]

A study approach on ferroelectric domains in BaTiO3 (Retracted article. See vol. 148, pg. 360, 2019) Abstract: Atomic Force Acoustic Microscopy (AFAM) and Piezoresponse Force Microscopy (PFM) were used to study local elastic and electromechanical […]