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Proceedings Paper

Photoinactivation of bacteria of P. Aeruginosa: role of light coherence
Author(s): Onega V. Ulianova; Sibo Zhou; Zhihong Zhang; Sergey S. Ulyanov; Qingming Luo
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Paper Abstract

Influence of laser irradiation and low-coherent speckles on the colonies grows of Pseudomonas Aeruginosa is studied. It has been demonstrated that effects of light on the inhibition or re-activation of cells are connected with speckle dynamics. Role of temporal coherence of light at photoinactivation of bacteria is studied. The regimes of cell suspension perfusion with purpose of devitalization of bacteria are found on the base of experimental investigations. Mathematical model of interaction of low-coherent laser radiation with bacteria suspension has been developed. Parameters of mathematical model have been identified on the base of experimental researches. Computer simulations of the processes of laser-cells interaction have been carried out.

Paper Details

Date Published: 1 May 2007
PDF: 8 pages
Proc. SPIE 6534, Fifth International Conference on Photonics and Imaging in Biology and Medicine, 65343Q (1 May 2007); doi: 10.1117/12.741566
Show Author Affiliations
Onega V. Ulianova, Saratov State Agrarian Univ. (Russia)
Saratov State Univ. (Russia)
Sibo Zhou, The Key Lab. of Biomedical Photonics, Huazhong Univ. of Science and Technology (China)
Zhihong Zhang, The Key Lab. of Biomedical Photonics, Huazhong Univ. of Science and Technology (China)
Sergey S. Ulyanov, Saratov State Univ. (Russia)
Qingming Luo, The Key Lab. of Biomedical Photonics, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6534:
Fifth International Conference on Photonics and Imaging in Biology and Medicine

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