A5020133276- Gold and Silver Nanoparticles Synthesis and Applications
- Nanoparticles: synthesis and applications
- Biosensors and Analytical Detection
- Advanced biosensing and bioanalysis techniques
- Enzyme Catalysis and Immobilization
- Advanced Nanomaterials in Catalysis
- Microbial Metabolic Engineering and Bioproduction
- Biodiesel Production and Applications
- Algal biology and biofuel production
- Nanoparticle-Based Drug Delivery
- Mycotoxins in Agriculture and Food
- SARS-CoV-2 detection and testing
- Laser-Ablation Synthesis of Nanoparticles
- Quantum Dots Synthesis And Properties
- Adsorption and biosorption for pollutant removal
- Graphene and Nanomaterials Applications
- Pomegranate: compositions and health benefits
- Electrochemical sensors and biosensors
- Plant tissue culture and regeneration
- Electrohydrodynamics and Fluid Dynamics
- Nanocluster Synthesis and Applications
- Pharmaceutical and Antibiotic Environmental Impacts
- Coffee research and impacts
- Growth and nutrition in plants
- Phytochemistry Medicinal Plant Applications
Universidade Federal do Espírito Santo
2016-2025
Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde
2023
Universidade do Vale do Paraíba
2023
Nanomed (Brazil)
2023
Universidade de São Paulo
2023
Antibody-coated nanoparticles have recently attracted considerable attention, with the focus falling on diagnostics. Nevertheless, controlled antibody bioconjugation remains a challenge. Here, we present two strategies of aim evaluating best approach for coupling antibodies surface nanomaterials in an oriented way. We employed electrostatic interaction (physical adsorption) and covalent conjugation orientation metallic as methods, their influence detection 17β-estradiol was addressed...
In the present work, we report antioxidant, antimicrobial and cytotoxic activities of quercetin-capped gold nanoparticles (AuNPsQct). The synthesis AuNPsQct was confirmed by UV-Vis spectroscopy, FTIR transmission electron microscopy (TEM) analyses. spectrum showed integrity quercetin molecules on nanoparticle surface. TEM images sizes less than 100 nm a slight spherical shape. electrostatic stability zeta potential method. antioxidant activity quercetin, evaluated DPPH, ABTS nitric oxide...
The biosynthesis of metallic nanoparticles (NPs) using biological systems such as fungi has evolved to become an important area nanobiotechnology. Herein, we report for the first time extracellular synthesis highly stable silver NPs (AgNPs) nematophagous fungus Duddingtonia flagrans (AC001). fungal cell-free filtrate was analyzed by Bradford method and 3,5-dinitrosalicylic acid assay used synthesize AgNPs in presence a 1 mM AgNO3 solution. They have been characterized UV-Vis spectroscopy,...
Green synthesis of metallic nanoparticles has become incredibly popular, mainly by minimizing problems environmental contamination and being able to reduce, stabilize potentially functionalize nanomaterials. Such compounds have possible applications in various areas, e.g., pharmaceuticals (drug delivery systems, cosmetics), textile industry (clothing with antimicrobial properties), diagnostic medicine (imaging, high efficiency biosensors), energy (solar panels), bioremediation, among others....
The high toxicity and occurrence of ochratoxin A (OTA) in grains foods has been a growing concern due to the impacts on health economy many countries. In this sense, simplified devices with sensitivity specificity for local monitoring are enthusiastically pursued. work, we report first time detection coffee samples using spoon-shaped waveguide immunosensor. biosensor was built surface covered by 60 nm layer gold enable SPR phenomenon. measurements indicated linear relationship between change...
Monodisperse and colloidally stable magnetic iron oxide nanoparticles have been developed for diverse biotechnology applications. Although promising the adsorption of organic molecules, low density sites in these has a significant challenge. In this study, an optimized factorial design with response surface methodology (RSM) was employed to produce small Superparamagnetic Iron Oxide Nanoparticles (SPIONs) stabilized tetraethoxysilane (TEOS). Bovine Serum Albumin (BSA) selected immobilization...
The interest in applying gold nanoparticles is principally based on their monodispersity. Therefore, the synthesis of monodisperse nanocrystals has a key role designing nanomaterials for specific application. However, it can represent cutting edge many laboratories, mainly because requires variety complex techniques properly characterizing metal with expensive and rugged equipment. Herein, we propose an approach to synthesize controlled monodispersity that be adjusted through factorial...
The use of enzymes immobilized on nanomagnetic supports has produced surprising results in catalysis, mainly due to the increase surface area and potential for recovery reuse. However, meticulous control process difficulties reproducibility have made industrial-scale applications unfeasible. Furthermore, role conjugation strategies catalytic activity recycling catalysts is unclear. Therefore, objective this study was compare through physical adsorption (naked) or covalent bonding with...
In this study, we developed a biosensor based on the localized surface plasmon resonance (LSPR) phenomenon of gold nanoparticles (AuNPs) to detect widely used herbicide glyphosate in food samples. To do so, either cysteamine or specific antibody for were conjugated nanoparticles. AuNPs synthesized using sodium citrate reduction method and had their concentration determined via inductively plasma coupled mass spectrometry. Their optical properties analyzed UV-vis spectroscopy, X-ray...
The cell biology discipline constitutes a highly dynamic field whose concepts take long time to be incorporated into the educational system, especially in developing countries. Amongst main obstacles introduction of new students is their general lack identification with most teaching methods. elaborated figures, movies and animations textbooks has given tremendous contribution learning process search for novel methods been central goal education. Some specialized tools, however, are usually...
Textile wastewater is commonly released into water bodies without appropriated treatment, resulting in environmental damages. Processes involving separation and adsorption using nanomagnetic supports have been considered a promising alternative to address this concern. However, challenges concerning the low stability of nanoparticles reproducibility experiments make their large-scale application difficult. In study, we evaluated efficiency methylene blue (MB) removal by Fe