A5022267829- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Catalysts for Methane Reforming
- Plant Pathogens and Fungal Diseases
- Identification and Quantification in Food
- Food Safety and Hygiene
- Microbial infections and disease research
- Antibiotic Resistance in Bacteria
- Biosensors and Analytical Detection
- Advancements in Solid Oxide Fuel Cells
- Inorganic Fluorides and Related Compounds
- Electrocatalysts for Energy Conversion
- Infection Control in Healthcare
- Dye analysis and toxicity
- Listeria monocytogenes in Food Safety
- Innovative Microfluidic and Catalytic Techniques Innovation
- Catalysis and Hydrodesulfurization Studies
- Ammonia Synthesis and Nitrogen Reduction
- Microbial Metabolism and Applications
- Copper-based nanomaterials and applications
- Zeolite Catalysis and Synthesis
- Enterobacteriaceae and Cronobacter Research
- Mycotoxins in Agriculture and Food
- Layered Double Hydroxides Synthesis and Applications
- Bacterial Identification and Susceptibility Testing
Federal University of São João del-Rei
2014-2025
Fundação Oswaldo Cruz
2021-2024
Universidade Federal de São Carlos
2010-2018
In order to understand the effect of CeO2 on preferential CO oxidation reaction (PROX-CO), support cerium oxide was prepared by hydrothermal (CeO2-HT) and precipitation (CeO2-PP) methods. The catalyst supported CeO2-HT exhibited higher activity than CuO/CeO2-PP. Characterization revealed that CuO better dispersed CuO/CeO2-HT surface favoring PROX-CO reaction, compared Also, nature ceria important for enhancing metal-support interaction, which affects catalytic activity. less sensitive...
The influence of the promoters CeO2, CeO2–ZrO2 and CeO2–La2O3 on reactivity γ-Al2O3 supported nickel catalysts from steam oxidative reforming methane was investigated in this study. At temperatures above 500 °C, promoted showed best performance reaction. increase activity can be attributed to specific catalyst–promoter interactions such as capacity CeO2 store release oxygen La2O3 stability support. Below catalyst may related more directly exposed metal surface area.
CuO/CeO2 and CuO/xCeO2-yLa2O3 catalysts, synthesized with varying CeO2 La2O3 molar ratios (1:1, 1:2, 2:1), were prepared via the hydrothermal method tested in water–gas shift reaction (150–350 °C). addition altered structural properties, reducing surface area copper dispersion. XANES situ XRD confirmed metallic Cu species during reduction reaction. Catalytic tests revealed excelled at low temperatures, while La2O3-doped especially CuO/1CeO2-1 La2O3, performed better 250–350 °C. Stability...
CuO/CeO2, CuO/Al2O3 and CuO/CeO2–Al2O3 catalysts, with CuO loading varying from 1 to 5 wt.%, were prepared by the citrate method applied preferential oxidation of carbon monoxide in a reaction medium containing large amounts hydrogen (PROX-CO). The compounds characterized ex situ X-ray diffraction, specific surface area measurements, temperature-programmed reduction oxidized surfaces; XANES-PROX experiments also carried out study copper state under PROX-CO conditions. These analyses showed...
Abstract In this work, we unveil the potential of nitrogen (N 2 ) adsorption from Liquid Argon (LAr) through molecular sieves (zeolites) Li-FAU Adsorbents. We report detailed studies about N gas at T = 89 K using a commercial Micromeritics ASAP-2420 equipment and purification LAr Purification Cryostat (PuLArC) IFGW/Unicamp. argue that by is possible thanks to stronger interaction with lithium cations present in zeolite Li-FAU. fact, experiments performed PuLArC have unequivocally shown...
Introduction: Microorganisms of the genus Acinetobacter belong to Moraxellaceae family and contains more than 70 described species.The most clinically relevant species calcoaceticus-baumannii complex.The can be found in water, animal soil, isolation pharmaceutical industries environments was already reported.Information retrieved from microorganism identification extremely investigating sources microbiological contamination a product or process, especially when specified limits are exceeded....
Introduction: Cronobacter spp.are Gram-negative rods belonging to the Enterobacteriaceae family and included into group of thermotolerant or fecal coliforms.This genus has soil plants as its primary niche, however, certain species have great pathogenic potential.Certain characteristics this seem favor survival spp. in manufacturing environments, which is critical, depending on production stage that microorganisms can be isolated. Objective:The objective study was identify strains isolated...
Introduction: Pharmaceutical products must be produced according to Good Manufacturing Practices and requires appropriate quality control.The manufacture of sterile a high level sanitation hygiene, which observed at all production area equipment utensils, materials containers.Areas monitored regularly for the detection emergence resistant microorganisms, sanitizers have proven efficacy.Objectives: This study aimed evaluate sporicidal activity 2% peracetic acid against filamentous fungus...
CO PREFERENTIAL OXIDATION ON CuO/CeO 2 -TiO SYSTEM.Cu catalysts supported on CeO , TiO and /TiO were prepared by precipitation method used for preferential oxidation of carbon monoxide contained in a hydrogen flow generated methane steam reforming.The samples characterized XRD, BET TPR techniques.The catalytic properties studied the 50-330ºC range using quartz micro-reactor vertically positioned an electrical furnace.The results showed that small copper particles with lower metal content are...
Introduction: Pseudomonas aeruginosa is an opportunist human pathogen that cannot be present in many products during the production chain of pharmaceuticals.Objective: The objective this study was to evaluate phenotypic profile P. strains as a tool for investigation pharmaceutical industry.Methodology: Ninety isolated from seven different areas (A-G) 2014-2020 were evaluated: 40 active ingredient (API), 30 purified water (PWI), 14 intermediate process solutions (IPS), and six potable...
Introduction: Bioburden monitoring is essential to contamination control of pharmaceutical products.Microbiological load may represent a potential risk for patients if the sterilization process not effective and/or due presence allergens or toxins.Although bioburden can be eliminated by terminal filtration processes, it important monitor before final processing, regarding amount and species microorganisms that are present.Objective: To evaluate microorganism's isolated in intermediate...
Os autores externos submeteram sua publicação para apresentação de trabalho no evento “International Symposium on Immunobiologicals”, que foi coordenado e organizado pelo Instituto Tecnologia em Imunobiológicos (Bio-Manguinhos), da Fundação Oswaldo Cruz. Apresentador do material: Luiza Vasconcellos. Tipo material apresentado: Pôster.