title: Influence of various growth conditions on Fresnel diffraction patterns of bacteria colonies examined in the optical system with converging spherical wave illumination.
abstract: The novel optical system based on converging spherical wave illumination for analysis of bacteria colonies diffraction patterns, is proposed. The complex physical model of light transformation on bacteria colonies in this system, is presented. Fresnel diffraction patterns of bacteria colonies Escherichia coli, Salmonella enteritidis, Staphylococcus aureus grown in various conditions, were examined. It was demonstrated that the proposed system enables the characterization of morphological changes of colony structures basing on the changes of theirs Fresnel diffraction patterns.
authors: Bio-optics Group, Institute of Biomedical Engineering and Instrumentation, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland. igor.buzalewicz@pwr.wroc.pl
authors: Igor
authors: I
authors: Buzalewicz
authors: Alina
authors: A
authors: Wieliczko
authors: Halina
authors: H
authors: Podbielska
mesh_terms: D000042:Absorption / Q000187:drug effects / Q000528:radiation effects; D001419:Bacteria / Q000166:cytology / Q000187:drug effects / Q000254:growth & development* / Q000528:radiation effects*; D015169:Colony Count, Microbial; D003470:Culture Media / Q000494:pharmacology; D004926:Escherichia coli / Q000166:cytology / Q000187:drug effects / Q000254:growth & development / Q000528:radiation effects; D008027:Light; D055096:Optical Devices; D012475:Salmonella / Q000166:cytology / Q000187:drug effects / Q000254:growth & development / Q000528:radiation effects; D013057:Spectrum Analysis; D013211:Staphylococcus aureus / Q000166:cytology / Q000187:drug effects / Q000254:growth & development / Q000528:radiation effects; D013997:Time Factors
chemical_list: D003470:Culture Media