Application of a laser speckle method for determining chemotactic responses of <i>Pseudomonas aeruginosa</i> toward attractants

Silvia Murialdo; Lucía Passoni; Gonzalo Sendra; Héctor Rabal; Ricardo Arizaga; Nelly Cap; Marcelo Trivi

doi:10.1117/12.695500

15 September 2006 Application of a laser speckle method for determining chemotactic responses of Pseudomonas aeruginosa toward attractants

Silvia Murialdo, Lucía Passoni, Gonzalo Sendra, Héctor Rabal, Ricardo Arizaga, Nelly Cap, Marcelo Trivi

Author Affiliations +

Proceedings Volume 6341, Speckle06: Speckles, From Grains to Flowers; 63412D (2006) https://doi.org/10.1117/12.695500
Event: Speckle06: Speckles, From Grains to Flowers, 2006, Nimes, France

Abstract

Dynamic speckle images are useful tools to characterize the activity of biological tissues. In this paper, this technique was applied to determine chemotaxis responses of Pseudomonas aeruginosa towards attractants. Generalized weighted differences, wavelet entropy and spectral bands decomposition algorithms were used to characterize the speckle activity. Experimental results show regions with different bacterial activity. Dynamic speckle method exhibits a good performance for this application.

Citation Download Citation

Silvia Murialdo, Lucía Passoni, Gonzalo Sendra, Héctor Rabal, Ricardo Arizaga, Nelly Cap, and Marcelo Trivi "Application of a laser speckle method for determining chemotactic responses of Pseudomonas aeruginosa toward attractants", Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63412D (15 September 2006); https://doi.org/10.1117/12.695500

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