Alexandre Antunes Brum

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Hydrophobic photostable dye molecules such as perylenes or pyrromethenes were trapped in xerogel matrices. Using these new materials as solid-state dye lasers, we have demonstrated efficient laser operation. Slope efficiencies of up to 30% were obtained in the millijoule output-energy range. Tunabilities of up to 60 nm were observed, and more than 150,000(More)
Background Caseous lymphadenitis (CLA) is a disease caused by the bacteria Corynebacterium pseudotuberculosis which affects small ruminants such as sheeps and goats, leading to severe economic losses. The development of more sensitive and specific diagnoses showing effectiveness on asymptomatic animals is essential for disease's control. This study purposes(More)
The caseous lymphadenitis (CLA) is a common disease that affects ruminants around the world. The CLA is caused by gram-positive bacteria known as Corynebac-terium pseudotuberculosis, which is an intracellular facultative pathogen. In Brazil, the high prevalence occurs principally in northeast and southwest, where has the major herd of sheep and goat causing(More)
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