A5059735238- Essential Oils and Antimicrobial Activity
- Nanoparticles: synthesis and applications
- Bee Products Chemical Analysis
- Science and Education Research
- Nail Diseases and Treatments
- Environmental Sustainability and Education
- Medicinal Plants and Neuroprotection
- Olfactory and Sensory Function Studies
- Heme Oxygenase-1 and Carbon Monoxide
- Toxoplasma gondii Research Studies
- Education and Digital Technologies
- Salmonella and Campylobacter epidemiology
- Phytochemistry Medicinal Plant Applications
- Wound Healing and Treatments
- Healthcare Regulation
- Escherichia coli research studies
- Agricultural and Food Sciences
- Antibiotic Resistance in Bacteria
- Academic Research in Diverse Fields
- Advanced Cellulose Research Studies
- Corneal Surgery and Treatments
- Bone Tissue Engineering Materials
- Business and Management Studies
- Moringa oleifera research and applications
- Bacterial biofilms and quorum sensing
Universidade Estadual de Londrina
2013-2025
Blücher (Germany)
2014
Bacterial resistance to conventional antibiotics has become a clinical and public health problem, making therapeutic decisions more challenging. Plant compounds nanodrugs have been proposed as potential antimicrobial alternatives. Studies shown that oregano (Origanum vulgare) essential oil (OEO) silver nanoparticles potent antibacterial activity, also against multidrug-resistant strains; however, the strong organoleptic characteristics of OEO development these metal can limit their use. This...
The presence of fungi and contaminating bacteria in ripened cheeses is a major concern for the dairy industry worldwide. Therefore, objective this study was to evaluate antimicrobial activity oregano essential oil (Origanum vulgare L.) (OEO) against (Escherichia coli Staphylococcus aureus) filamentous on during ripening. For purpose, Minas were produced artificially contaminated with strains enteropathogenic E. coli, multidrug-resistant S. aureus, Aspergillus flavus, Fusarium oxysporum,...
Background: Multidrug-resistant bacteria cause over 700,000 deaths annually, a figure projected to reach 10 million by 2050. Among these bacteria, the ESKAPEE group is notable for its multiple resistance mechanisms. Given high costs of developing new antimicrobials and rapid emergence resistance, drug repositioning offers promising alternative. Results: This study evaluates antibacterial activity sertraline paroxetine. When tested against clinical reference strains from group, exhibited...
Multidrug-resistant bacteria such as extended-spectrum beta-lactamase (ESBL), Enterobacteriaceae, and methicillin-resistant
Multidrug-resistant bacteria have become a public health problem worldwide, reducing treatment options against several pathogens. If we do not act this problem, it is estimated that by 2050 superbugs will kill more people than the current COVID-19 pandemic. Among solutions to combat antibacterial resistance, there increasing demand for new antimicrobials. The activity of binary combinations containing bioAgNP (biogenically synthesized silver nanoparticles using Fusarium oxysporum), oregano...
Resistant bacteria may kill more people than COVID-19, so the development of new antibacterials is essential, especially against microbial biofilms that are reservoirs resistant cells. Silver nanoparticles (bioAgNP), biogenically synthesized using Fusarium oxysporum, combined with oregano derivatives, present a strategic antibacterial mechanism and prevent emergence resistance planktonic microorganisms. Antibiofilm activity four binary combinations was tested enteroaggregative Escherichia...
The food industry has been exploring the association of polymers with nanoparticles in packaging production, and active products are essential to increase shelf life avoid contamination. Our study developed starch-poly (adipate co-terephthalate butyl) films silver produced Fusarium oxysporum components (bio-AgNPs), intending control foodborne pathogens. bio-AgNPs showed activity against different Salmonella serotypes, including multidrug-resistant Saint Paul Enteritidis, minimum bactericidal...
The frequent use of antimicrobials in commercial poultry production has raised concerns regarding the potential impact on human health due to selection for resistant bacteria. Several studies have reported similarities between extraintestinal pathogenic Escherichia coli (ExPEC) strains isolated from birds and humans, indicating that these contaminant bacteria may be linked disease. aim our study was analyze frequency antimicrobial resistance virulence factors among E. chicken carcasses...
Background/Objectives: Wounds from burns are susceptible to infections, allowing multidrug-resistant microorganisms complicate treatments and patient recovery. This highlights the development of new strategies control these microorganisms. work evaluated antibacterial activity hydrogels containing biogenic silver nanoparticles (bio-AgNP) Origanum vulgare essential oil (OEO) against bacteria. Methods: The formulations were subjected organoleptic, pharmacotechnical, stability characterization...
Microbiological contamination in commercial poultry production has caused concerns for human health because of both the presence pathogenic microorganisms and increase antimicrobial resistance bacterial strains that can cause treatment failure infections. The aim our study was to analyze profile virulence factors E. coli isolates from chicken carcasses obtained different farming systems (conventional free-range poultry). A total 156 were isolated characterized genes encoding described...
Wound infections are feared complications due to their potential increase healthcare costs and cause mortality since multidrug-resistant bacteria reduce treatment options. This study reports the development of a carbomer hydrogel containing biogenic silver nanoparticles (bioAgNPs) its effectiveness in wound treatment. showed vitro bactericidal activity after 2 h, according time-kill assay. It also reduced bacterial contamination rat wounds without impairing healing hydrophilic groups...
Onychomycosis is a common fungal nail infection for which new antibiotics are needed to overcome antifungal resistance and other limitations of conventional treatments. This study reports the development lacquers containing oregano essential oil (OEO), rosemary (REO), and/or biogenic silver nanoparticles (bioAgNP). The formulations (F) were tested against dermatophytes by agar diffusion, ex vivo infection, scanning electron microscopy techniques. They evaluated pharmacotechnically FTIR-PAS...
Onychomycosis is a common fungal nail infection for which new antifungals are needed to overcome antimicrobial resistance and the limitations of conventional treatments. This study reports development antifungal lacquers containing oregano essential oil (OEO), rosemary (REO), biogenic silver nanoparticles (bioAgNPs). The formulations (F) were tested against dermatophytes using agar diffusion, ex vivo infection, scanning electron microscopy techniques. They evaluated their pharmacotechnical...
Pathogenic bacteria resistant to conventional antibiotics represent a global challenge and justify the need for new antimicrobials capable of combating bacterial multidrug resistance. This study describes development topical hydrogel in formulation composed cellulose, hyaluronic acid (HA), silver nanoparticles (AgNPs) against strains Pseudomonas aeruginosa. AgNPs as an antimicrobial agent were synthesized by method based on green chemistry, using arginine reducing potassium hydroxide...
The demand for sustainable cosmetics leads to the search natural and biotechnology ingredients. present study reports development of multifunctional lip moisturizer containing levan (LEV) from Bacillus subtilis natto, sophorolipids (SOP) Starmerella bombicola Citrus paradisi (OCP) essential oil , using simplex-centroid experimental design. formulations were evaluated physicochemically, pharmacotechnically by DPPH assay. optimized formulation was selected through Response Surface Method...
Bacterial resistance to conventional antibacterial agents is a clinical issue which requires the constant search for new therapies. This study evaluated activity of honey produced by Scaptotrigona bipunctata (HSB) and Africanized bees Apis mellifera (HAM) against Gram-negative Gram-positive bacterial strains. Six assays were performed analyze effects: 1) Agar well-diffusion assay (AWD), 2) Microdilution assay, 3) Checkerboard 4) Time-kill curve, 5) Scanning electron microscopy (SEM), 6)...
A microbiologia é a ciência que estuda os microrganismos e relação destes com nossa vida meio ambiente. Entretanto, um tema transmitido ao ensino médio, quase exclusivamente de forma conceitual teórica pelo professor, exigindo para sua compreensão, alto nível abstração por parte do aluno, dificultando o processo aprendizagem. O presente trabalho teve como objetivo aplicar metodologia PBL no relacionando-a cotidiano dos estudantes. coloca aluno papel central na produção conhecimento, visto...
Devido ao surgimento de micro-organismos resistentes às drogas convencionais, tem sido intensa a busca pela descoberta e desenvolvimento novos agentes antimicrobianos. Uma alternativa é pesquisa com compostos produzidos por plantas; estudos óleos essenciais mostram que o óleo orégano apresenta atividade antimicrobiana eficiente, principalmente inibindo crescimento bactérias associadas à contaminação alimentos doenças infecciosas como Staphylococcus aureus. Nanopartículas (NP) também uma...
This study compares the morphologies, zeta potentials, and antibacterial effects a total 12 different microcompounds containing honey silver nanoparticles, in novel of difference between samples nanoparticle synthesis, as well interaction that those can have with nanoparticles synthetized using them. Microcompounds were by combining nitrate solution sample performing one methods biogenic synthesis: sunlight exposure, basification to pH 5 or 10. Samples each microcompound also submitted heat...