Local authorities monitoring studies

A three year study monitoring acid precipitation across Central Indiana has just been completed by the authors ( ) and the local International Rotary Club who donated the manpower for sample collection. Over 3000 individual samples were collected during approximately 300 individual precipitation events. Using acceptible analytical and statistical protocol, the samples were characterized by meteorological, physical, and trace chemical composition data to determine possible sources of the acidity. The study yielded pertinent environmental data that set the parameters for this work. 

Nagamine et al. used SECM to study S. aureus trapped in nanoliter collagen-gel matrixes localized on a chip. In the presence of Fe(CN)/ , the respiratory chain located within the cytoplasmic membrane of S. aureus cells produces FelCNjg, which can be monitored by the SECM tip. The authors found that the ferricyanide reduction activity in the S. aureus, an osmotolerant bacteria, is enhanced in response to high osmotic stress such as the presence of highly concentrated salts. 

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