Biological Sciences

Professor Wilhelm Einar Stellan Hjertén of the Institute of Biochemistry, Uppsala University in Sweden, received the Arnold O. Beckman Medal and Award, presented on Monday, March 11th at the 29th International MicroScale Bioseparations Symposium (MSB 2013), held at the University of Virginia in Charlottesville (UVA).

Counting the total number of live microorganisms (TVC/TVO) on a Petri dish is one of the main laboratory procedures. It has been used worldwide in microbiological, medical, food, biotechnological, and environmental laboratories ever since the Petri dish was invented more than 120 years ago.


Matthew Sullivan, an environmental specialist in the Field Operations section of the Bureau of Environmental Services for the city of Portland, Oregon, talks to contributing editor Tanuja Koppal, Ph.D., about how field testing, particularly for water analysis, has changed over the years. The testing equipment is now better suited for field analysis, in terms of its size, compactness, and robustness. The newer instruments have also allowed for sampling and testing to be done remotely and in an automated fashion. Overall, field instrumentation is striving to provide faster, cheaper, more robust, and more real-time measurements for routine analysis.








