The present research aimed to evaluate the photoprotective effect of Zea mays L. "purple maize" and Theobroma cacao L. "cacao" in the spore-crystal complex of Bacillus thuringiensis subsp. israelensis microencapsulated in calcium alginate. Three formulations of Bacillus thuringiensis subsp. israelensis, two with Zea mays L. "purple maize" and Theobroma cacao L. 0.1% "cocoa" and one without UV photoprotector added and they were put in plastic containers of 1 liter capacity, which were filled with 500 mL of distilled water, all treatments were performed in triplicate and exposed to UV radiation from direct solar radiation during days 12 to 17 of July 2017. At 0, 24, 48, 72, 96 and 120 hours of 25 larvae of Ae. aegypti in stage III to each of the treatments and mortality was recorded at 24 hours. The results show significant effects on the wide comparisons of all formulations except for the...

Introduction: Hospital-acquired infections  (HAI) due to antibiotic-resistant bacteria are a public health problem, and the hospital environment is a favorable reservoir for various pathogens, therefore a health option for pathogen control is to evaluate the bactericidal activity of textile platforms with yarn copper against pathogens that cause carbapenemase-resistant HAI. Materials and methods: the bactericidal capacity of the biomedical textile with and without copper thread was evaluated in four bacterial strains: Escherichia coli, Pseudomonas aeruginosa, Klebsiella peumoniae and Staphylococcus aureus. Differences in survival time and bacterial density were established using ANOVA and Tukey tests with a significance level of P <0.05 in triplicate. Results: The survival of E. coli, K. pneumoniae, P. aeruginosa and S. aureus, on biomedical textiles with copper thread, was 80, 90,...