Abstract
The growth of Chrysosporium merdarium on TiO 2 (rutile, anatase) and its possibility to deteriorate the surface were investigated. Treated with fungi and untreated samples of deteriorated TiO 2 surfaces were studied by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM). Microbial deterioration of TiO 2 is also discussed. The attachment to the TiO 2 surface via metabolic products resulted in the formation of cryptand [2,2,2] complex with Ca 2+ ions. According to water contact angle (CA) measurements microbial growth increases the wettability of TiO 2 film surfaces. A much more intensive fungal action during microbial treatment on rutile in comparison with that of anatase was observed. A chemical deterioration product, the volatile trimethyl borate, on rutile in exudation of C. merdarium was detected by gas chromatographic–mass spectrometric analysis.
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