Widespread nuclease contamination in commonly used oxygen-scavenging systems

Bacterial contamination of four commonly used dental materials

Bacterial contamination of four commonly used dental materials Dr. M. Ghavam* - Dr. M. Aligholi** *- Associate Professor of Operative Dentistry Dept. - Faculty of Dentistry – Tehran University of Medical Sciences. **- The member of Microbiology Dept. Faculty of Medicine – Tehran University of Medical Sciences. Background and Aim: Bacterial contamination of dental materials and devices used in d...

Radical scavenging-linked antioxidant activities of commonly used herbs and spices in Korea.

Herbs and spices not only variety and racy flavour to Korean foods, they also are the richest source for antioxidant power. The present study evaluates the radical scavenging-linked antioxidant activities of hot water extracts from commonly used herbs and spices in Korea. 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical and superoxide anion scavenging activities of bay extract were 39.5% and 22.1%,...

Deposition of carbon nanotubes in commonly used sample filter media

There is no single standard technique or methodology to characterize the size, structure, number, and chemical composition of airborne carbon nanotubes.  Existing analytical instruments and analytical techniques for evaluating nanoparticle concentrations cannot simultaneously provide morphology, state of agglomeration, surface area, mass, size distribution and chemical composition data critical...

Study on Microbial Deposition and Contamination onto Six Surfaces Commonly Used in Chemical and Microbiological Laboratories

The worktops in both chemical and microbiological laboratories are the surfaces most vulnerable to damage and exposure to contamination by indoor pollutants. The rate at which particles are deposited on indoor surfaces is an important parameter to determine human exposure to airborne biological particles. In contrast to what has been established for inorganic pollutants, no limit has been set b...

Commonly Used Distributions