Introduction For scanning electron microscopy, our ability to examine wet specimens continually improves thanks to advances in instrumentation; nevertheless, drying wet samples remains indispensable, particularly for high resolution or for a sample that needs to be imaged repeatedly. In many laboratories, the standard method for drying is critical-point drying. In this method, samples are dehyd...

Novel products that carry concrete and relevant health benefits, with texture flavor not substantially different from already available products, are generally well accepted by consumers. Vacuum impregnation is a non-thermal technology allows the enrichment of fruit ingredients in solution. The characteristic resulting product combination both solid matrix This work aimed at: (i) evaluating eff...

The ability of bacteria to sense their surroundings can be employed to measure the bioavailability and toxicity of pollutants. However, long-term maintenance of both viability and activity of the sensor bacteria is required for the development of cell-based devices for environmental monitoring. To meet these demands, various techniques to conserve such bacteria have been reported, including fre...

Tank liquid ammonia (Ohio Chemical and Manufacturing Company) was distilled from sodium shavings into a tube of about 120 cc. volume. This was equipped with a thermocouple well, inlet and outlet side arms protected with calcium chloride and phosphorus pentoxide drying towers, and a standard taper cap containing a mercury seal stirrer. A current of dry nitrogen could be passed through the tube, ...

The infectious capacity of poliomyelitis virus has been shown to be associated with spherical particles approximately 30 mim in diameter.7"0"l'17 The present study suggests that these particles, like those of other animal viruses recently studied8'8'9 consist of an outer membranous structure surrounding an internal nucleus-like body. The ultimate size and shape of small virus particles as they ...