Publications by authors named "W V S M Batista"

Diseases caused by protozoan parasites, such as leishmaniasis, trypanosomiasis, and malaria, are highly complex and together continue to cause high annual morbidity and mortality. The search for new compounds in environmental biodiversity, repositioning known drugs, and developing vaccines using old and innovative technologies have been employed to discover vaccines and new and alternative treatments. Extracellular vesicles (EVs) can carry parasite antigens, creating a new possibility to develop an effective and affordable platform for treatment, vaccines, and drug delivery.

View Article and Find Full Text PDF

Leaks through cement sheaths remain a complex and challenging issue in the oil industry, representing a persistent obstacle that has endured for decades. The drying shrinkage, an inherent characteristic of Portland cement, substantially exacerbates this problem, driving the formation of microcracks and heightened permeability under variable stress conditions. In this context, additives emerge as significant elements in addressing this issue, offering a pathway to mitigate the adverse effects of leaks.

View Article and Find Full Text PDF

spp. is the aetiologic agent of leishmaniasis, a disease endemic in several developing countries. The parasite expresses and secretes several virulence factors that subvert the macrophage function and immune response.

View Article and Find Full Text PDF

We report on a new iron (iii)-cyamelurate-based coordination polymer. The new material based on a heptazine derivative was prepared in aqueous medium and characterized by a variety of techniques including TGA, FTIR, XRD, HRTEM, and STEM. Due to the high structural stability of the complex in aqueous media, its heterogeneous Fenton-like catalytic activity was evaluated using a model molecule.

View Article and Find Full Text PDF
Article Synopsis
  • Paracoccidioidomycosis (PCM) is a common fungal infection in Latin America, caused by a specific fungus, which enters the body through inhalation and changes its form.
  • The study focused on aspartyl proteases, essential enzymes that help the fungus invade the host and evade the immune response.
  • Researchers found that these proteases are influenced by environmental conditions, such as pH and nutrient availability, and their activity plays a critical role in the fungus's growth and relationship with the host.
View Article and Find Full Text PDF