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Science 22 October 2004:
Vol. 306. no. 5696, p. 571
DOI: 10.1126/science.306.5696.571k
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This Week in Science

Synchrotron high-energy X-rays can be used for detecting and deciphering the interaction of bacteria with environmental metal ions, allowing the detection and location of metals within a single bacterial cell, and the assessment of their redox state. Kemner et al. (p. 686) detected nanominerals in hydrated cells and could observe and quantify chemical changes depending upon the physiological status of the cells--free or attached to a substrate or after heavy metal-induced killing. The methodology described should be valuable in environmental analysis and life detection.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)