This review gives a comprehensive overview of the widespread use and toxicity of silver
compounds in many biological applications. Moreover, the bacterial silver resistance …

Indoor environments, where people spend most of their time, are characterized by a specific
microbial community, the indoor microbiome. Most indoor environments are connected to …

Abstract Background The International Space Station (ISS) is a unique built environment
due to the effects of microgravity, space radiation, elevated carbon dioxide levels, and …

Four novel bacterial strains were isolated from cryogenic tubes used to collect air samples at
altitudes of 24, 28 and 41 km. The four strains, 24KT, 28KT, 41KF2aT and 41KF2bT, were …

Pullulan is a non-ionic, linear, water-soluble and a neutral polysaccharide. It is composed of
α-(1, 6) repeated maltotriose units via α-(1, 4) glycosidic bond having chemical formula (C 6 …

Manned space flight induces a reduction in immune competence among crew and is likely to
cause deleterious changes to the composition of the gastrointestinal, nasal, and respiratory …

Thirteen strains of a novel spore-forming, Gram-positive, mesophilic heterotrophic bacterium
were isolated from spacecraft surfaces (Mars Odyssey Orbiter) and assembly-facility …

Psychrotolerant spore-forming bacteria represent a major challenge to the goal of extending
the shelf life of pasteurized dairy products. The objective of this study was to identify …

In assessing the bacterial populations present in spacecraft assembly, spacecraft test, and
launch preparation facilities, extremophilic bacteria (requiring severe conditions for growth) …

The environment in space and on planets such as Mars can be lethal to microorganisms
because of the high vacuum and high solar radiation flux, in particular UV radiation, in such …