Bacterial infections are a serious issue for public health and represent one of the major challenges of modern medicine. In this work, a selective antimicrobial strategy based on triggering of pore-forming toxin, which is secreted by infective bacteria, was designed to fight Staphylococcus aureus. The antimicrobial activity is realized by employing Eucalyptus citriodora oil as antibiotic which in this study is encapsulated in nanoliposomes.
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http://dx.doi.org/10.1039/c4cc09386k | DOI Listing |
Braz J Biol
October 2024
Fundação Oswaldo Cruz - FIOCRUZ, Instituto Oswaldo Cruz - IOC, Programa de Pós-graduação em Biodiversidade e Saúde, Rio de Janeiro, RJ, Brasil.
The use of botanical insecticides has increased in recent years due to the demand for effective products, particularly against insects resistant to conventional insecticides. Among these is Aedes aegypti, a well-adapted mosquito to urban environments that opportunistically feeds on humans and animals, contributing to the spread of virus. We evaluated the potential of essential oils (EOs) extracted from Eucalyptus citriodora, Eucalyptus staigeriana, Eucalyptus caryophyllus, and Mentha arvensis in terms of their larvicidal activity against Ae.
View Article and Find Full Text PDFAntibiotics (Basel)
October 2024
Multi-User Laboratory, Graduate Program in Environment and Health, Planalto Catarinense University, Lages 88509-900, SC, Brazil.
Zoolog Sci
October 2024
Forest Ecology Division, Taiwan Forestry Research Institute, Taipei City 100060, Taiwan,
We identified two gall-inducing wasp species infesting eucalypts leaves, including an undescribed species, sp. nov., and , which is a new record for Taiwan.
View Article and Find Full Text PDFMaterials (Basel)
September 2024
Department of Structural Engineering, São Carlos School of Engineering, University of São Paulo, Av. Trabalhador São Carlense, 400 Centro, São Carlos 13566-590, SP, Brazil.
Tensile perpendicular to grain is an important mechanical property in the design of joints in timber structures. However, according to the standards, this strength can be determined using at least two different methods: uniaxial tensile and three-point static bending. In this context, the present paper aims to investigate the influence of these test methods on the determination of tensile strength perpendicular to grain of wood used in civil construction timber.
View Article and Find Full Text PDFNat Prod Res
September 2024
Department of Agroindustrial Science and Technology, Federal University of Pelotas, Pelotas, Brazil.
Fungal deterioration is a recurring problem in citrus fruits, and the search for natural preservatives has been widely publicised. Therefore, the antifungal activity of clove, white thyme, tea tree, , , green mandarin, sicilian lemon, sweet orange, and bergamot essential oils (EO's) was evaluated against the mycelial growth of isolated from contaminated citrus fruits, by direct contact and volatiles action. In addition, the chemical composition and volatile compounds of the EO's were evaluated by gas chromatography.
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