Induced transformation of amorphous silica to cristobalite on bacterial surfaces

摘要: Extreme conditions such as high temperature and/or pressure are usually required for the transformation of amorphous silica to crystalline polymorphs. In this article, we present our results that can be deposited on a bacterial surface and transformed cristobalite at relatively low ambient pressure. The phase under thermal treatment was investigated by variety methods including X-ray diffraction, electron microscopy, Fourier transform infrared spectroscopy. Results show cell exhibits direct structure (800 °C). charge cells does not affect transformation. Three Gram-negative bacteria three Gram-positive have been tested in study. All these found facilitate transition into cristobalite. observation surfaces highlights use synthesis control minerals.