A5027964589- Nanoparticles: synthesis and applications
- Nanomaterials for catalytic reactions
- Antimicrobial agents and applications
- Medicinal Plants and Neuroprotection
- Essential Oils and Antimicrobial Activity
- Wound Healing and Treatments
- Lignin and Wood Chemistry
- Gold and Silver Nanoparticles Synthesis and Applications
- Bacterial biofilms and quorum sensing
- Biochemical and biochemical processes
- Microbial Natural Products and Biosynthesis
- Metallurgy and Material Science
- Enzyme Production and Characterization
- Pharmaceutical and Antibiotic Environmental Impacts
- Microbial Fuel Cells and Bioremediation
- Copper-based nanomaterials and applications
- Advanced Photocatalysis Techniques
- Environmental remediation with nanomaterials
- Advanced Nanomaterials in Catalysis
- Nanotechnology research and applications
- Phytochemistry and Biological Activities
- Bioeconomy and Sustainability Development
- Ionic liquids properties and applications
- GABA and Rice Research
- Nanoplatforms for cancer theranostics
Universidade Federal de São Paulo
2015-2025
Instituto de Ciências Farmacêuticas
2023-2024
Universidade Estadual de Campinas (UNICAMP)
2007
A biobased material, polythymol (PTF), was prepared using thymol, a monoterpene obtained from the essential oil of Thymus vulgaris (Lamiaceae), as starting material with aim enhancing antimicrobial properties this natural product. Initially, different processes were performed in order to optimize reaction conditions obtain macromolecule high purity and yield. PTF characterized techniques, such NMR, infrared, UV-Vis, thermogravimetric analyses. The activity both thymol evaluated against...
The processing of coffee consists on the separation grains from other parts fruit, then roasted and extracted to obtain beverage that is so appreciated worldwide. Several studies have dedicated efforts treat residue processing, while recovering lignols industrial interest. Given this scenario, nutrients in husk can enhance microbial growth, providing optimal conditions for microorganisms produce metabolites may medicinal properties. Deep eutectic solvents (DES) are a class and/or catalysts...
Silver nanoparticles (AgNP) have been used as an alternative to microbial resistance. Nevertheless, AgNP high cost and moderate toxicity humans limit their use. Copper (CuNP) emerge alternative, but fast oxidation hampers large-scale In this scenario, work propose the synthesis optimization of Ag, Cu, bimetallic Ag/Cu in a chitosan aqueous solution using factorial design statistics. UV-Vis spectroscopy, zetasizer, transmission electron microscopy (TEM) measurements demonstrated that...
The use of copper as an antimicrobial agent has a long history and gained renewed interest in the context COVID-19 pandemic. In this study, authors investigated properties alloy composed with small percentage silver (Cu-0.03% wt.Ag). was tested against various pathogens, including Escherichia coli, Staphylococcus aureus, Candida albicans, Pseudomonas aeruginosa, H1N1 virus, using contact exposure tests. Results showed that capable inactivating these pathogens two hours or less, indicating...
CuAlFeNi alloys are considered very important from the commercial point of view to exhibit different phase transitions and properties, depending on relationship among these phases. We investigated stability formed phases after slow cooling, as well unidirectional solidification Cu-10.79 wt%Al-4.42 wt%Ni-3.67 wt%Fe alloy, establishing effects changes in amounts material characteristics. The analysis was performed using optical microscopy, scanning electron energy dispersive X-ray...
PRACTICAL IN ORGANOMETALLIC CHEMISTRY: PREPARATION OF DICARBONYLCYCLOPENTADIENYLIRON(II) CHLORIDE.In this work, we describe a new method for obtaining [Fe(CO) 2 [(η 5 -C H )Cl] employing simple techniques and lowcost reagents.It is worth mentioning that faster than others reported in the literature.It was applied laboratory classes undergraduate students, exploring different concepts organometallic chemistry discussing steps involved synthetic route.
Almost fifty years after the introduction of antibiotics as an antimicrobial agent, we are facing increasing number multi-resistant microbials. The search for new compounds emerged a promising alternative to treatments diseases caused by microorganisms such fungi and bacteria. Thus, endophytic gaining recognition their varied metabolites that may possess properties. In our research, isolated, from Calea pinnatifida, six identified Colletotrichum siamense, karstii, Hypomontagnella...
Endophytic fungi are increasingly being recognized for their diverse metabolites that may exhibit antimicrobial properties. In our study, we isolated seven endophytic fungal strains from Calea pinnatifida, which were identified as Hypomontagnella barbarensis, Neopestalotiopsis clavispora, Nigrospora sacchari-officinarum, Annulohypoxylon moriforme, Colletotrichum siamense, and karstii (with two isolates the same species). Furthermore, activity of extracts was assessed, revealing extract...
Silver nanoparticles (AgNPs) have been extensively explored as an alternative for microbial resistance. However, its high cost and moderate toxicity to humans limit use. As alternative, copper (CuNPs) may be but their fast oxidation hamper large-scale uses. Therefore, we propose here the synthesis optimization of Ag, Cu, Ag/CuNPs in chitosan aqueous solution using factorial design statistics. The optimized synthetic procedure allowed formation stable monodisperse demonstrated by UV-Vis...