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日期:2019-03-07 09:07:06 作者:弥窥概 阅读:

BACTERIA living in silver mines could be used to make cheap optical coatings, says a researcher in Sweden (Proceedings of the National Academy of Sciences, vol 96, p 13 611). Tanja Klaus at Uppsala University found that Pseudomonas stutzeri extracted silver from ores and synthesised particles up to 200 nanometres in size. The crystals, many of which were almost pure metallic silver, grew inside the bacteria. The particles have interesting optical properties, says Klaus “Now,