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A novel flow cytometric protocol for assessment of yeast cell adhesion
Silva-Dias, A.; Miranda, Isabel M.; Rocha, R.; Monteiro-Soares, M.; Salvador, Alexandre; Rodrigues, Acácio G.; Pina-Vaz, CidáliaMicrobial adhesion is a field of recognized relevance and, as such, an impressive array of tools has been developed to understand its molecular mechanisms and ultimately for its quantification. Some of the major limitations found within these methodologies concern the incubation time, the small number of cells analyzed, and the operator's subjectivity. To overcome these aspects, we have developed a quantitative...
Antifungal activity of the essential oil of Thymus capitellatus against Candida...
Salgueiro, Lígia Ribeiro; Pinto, Eugénia; Gonçalves, Maria José; Costa, Inês; Palmeira, Ana; Cavaleiro, Carlos; Pina-Vaz, CidáliaThe antifungal activity of Thymus capitellatus oils on Candida, Aspergillus and dermatophyte strains were studied. The essential oils were obtained from the aerial parts of the plants by water distillation and analysed by GC and GC-MS. Three chemotypes were characterized: 1,8-cineole (47.5%), 1,8-cineole/borneol (28.8% and 19.5%, respectively) and 1,8-cineole/linalyl acetate/linalool (27.5%, 20.0% and 17.0%, re...
Novel method using a laser scanning cytometer for detection of Mycobacteria in ...
Pina-Vaz, Cidália; Costa-de-Oliveira, Sofia; Rodrigues, Acácio G.; Salvador, AlexandreIn order to evaluate the capacity of laser scanning cytometry (LSC) to detect acid-fast bacilli directly on clinical samples, a comparison between Kinyoun-stained smears analyzed under light microscopy and propidium iodide-auramine-stained smears analyzed by LSC was performed. The results were compared with those for culture on BACTEC MGIT 960. LSC is a new, reliable methodology to detect Mycobacteria.
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