Bactericidal activity of crude extracts from lichen Ramalina pacifica were screened against 20 clinical pathogenic strains isolated from different infectious sources which belong to Pseudomonas aeruginosa, Klebsiella pneumonia, Salmonella typhi, Salmonella paratyphi, Echerichia coli, and Staphylococcus aureus. The minimal inhibitory concentration of petroleum ether extract and ethanol extract w...

Animal feces are a suspected source of contamination of apples by disease-causing organisms such as Echerichia coli O157. Laser-induced fluorescence was used to detect different amounts of feces from dairy cows, deer, and a dairy pasture applied to Red Delicious apples. One day after application, detection for 1:2 and 1:20 dilutions was nearly 100%, and for 1:200 dilutions (<15 ng of dry matter...

In this paper, for the first time, an on-chip optofluidic imaging system is innovated to measure the biophysical signature of single waterborne bacterium, including both the refractive index and morphology (size and shape), based on immersion refractometry. The key features of the proposed optofluidic imaging platform include (1) multiple sites for single bacterium trapping, which enable parall...

In this paper, for the first time, an on-chip optofluidic imaging system is innovated to measure the biophysical signatures of single waterborne bacteria, including both their refractive indices and morphologies (size and shape), based on immersion refractometry. The key features of the proposed optofluidic imaging platform include (1) multiple sites for single-bacterium trapping, which enable ...

El bagazo, es uno de los residuos que se obtienen del procesamiento café, una fuente importante metabolitos, como polisacáridos y compuestos fenólicos, con propiedades funcionales derivadas su actividad antioxidante antimicrobiana. objetivo este estudio fue evaluar el efecto solvente extracción sobre contenido así la antibacteriana extracto acuoso (T1), etanólico (T2) acuoso-etanólico (T3) baga...

I have read with interest James C. Hurley's very good review [1]. I totally agree that a reappraisal of the use of anti-endotoxin antibodies in Gram negative infections is warranted. In a study [2] we showed the possible association between endotoxin (LPS) and morbidity and mortality in septic shock. This was a study in healthy primates (vervet monkeys). We found, when these anesthetized primat...