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Proceedings Paper

Application of a laser speckle method for determining chemotactic responses of Pseudomonas aeruginosa toward attractants
Author(s): Silvia Murialdo; Lucía Passoni; Gonzalo Sendra; Héctor Rabal; Ricardo Arizaga; Nelly Cap; Marcelo Trivi
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Paper 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.

Paper Details

Date Published: 15 September 2006
PDF: 6 pages
Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63412D (15 September 2006); doi: 10.1117/12.695500
Show Author Affiliations
Silvia Murialdo, Univ. Nacional de Mar del Plata (Argentina)
Lucía Passoni, Univ. Nacional de Mar del Plata (Argentina)
Gonzalo Sendra, Univ. Nacional de Mar del Plata (Argentina)
Héctor Rabal, Univ. Nacional de la Plata (Argentina)
Ricardo Arizaga, Univ. Nacional de la Plata (Argentina)
Nelly Cap, Univ. Nacional de la Plata (Argentina)
Marcelo Trivi, Univ. Nacional de la Plata (Argentina)


Published in SPIE Proceedings Vol. 6341:
Speckle06: Speckles, From Grains to Flowers
Pierre Slangen; Christine Cerruti, Editor(s)

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