Inactivation of bacterial cells by dynamic low-coherent speckles: mathematical model of photoprocessing

Ulianova, Onega V.; Ulyanov, Sergey S.; Sazanova, E.V.; Sibo, Zhou; Luo, Qingming; Зудина, И. В.; Bednov, Andrey A.

doi:10.1117/12.634847

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2015

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“…It is a non-invasive technique useful for the assessment of biological processes without the invasive measurements required by other techniques [26][27]. Even though several authors report biophysical effects of coherent radiation on microorganisms [28], most of research on biospeckle for characterization of bacteria has been performed without minimizing the exposure time of the sample to the laser light.…”

Section: Introductionmentioning

confidence: 99%

Biospeckle Technique for Monitoring Bacterial Colony Growth with Minimal Photo-Exposure Time Associated

et al. 2015

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Abstract-We monitor bacterial spreading in time using dynamic laser speckle technique. An experimental set-up was designed and implemented in order to minimize the exposure time of the sample to the laser radiation. This schema allows widening the assessment of bacterial responses using biospeckle dynamics as it makes possible an evaluation of the acceleration or delay, inactivation or stimulation of radial growth of bacterial cultures due to continuous or instantaneous illumination with laser light.

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Section: Introductionmentioning

confidence: 99%