Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/107789
Type: Artigo de periódico
Title: Optical Tweezers For Studying Taxis In Parasites
Author: De Thomaz A.A.
Fontes A.
Stahl C.V.
Pozzo L.Y.
Ayres D.C.
Almeida D.B.
Farias P.M.A.
Santos B.S.
Santos-Mallet J.
Gomes S.A.O.
Giorgio S.
Feder D.
Cesar C.L.
Abstract: In this work we present a methodology to measure force strengths and directions of living parasites with an optical tweezers setup. These measurements were used to study the parasites chemotaxis in real time. We observed behavior and measured the force of: (i)Leishmania amazonensis in the presence of two glucose gradients; (ii)Trypanosoma cruzi in the vicinity of the digestive system walls, and (iii)Trypanosoma rangeli in the vicinity of salivary glands as a function of distance. Our results clearly show a chemotactic behavior in every case. This methodology can be used to study any type of taxis, such as chemotaxis, osmotaxis, thermotaxis, phototaxis, of any kind of living microorganisms. These studies can help us to understand the microorganism sensory systems and their response function to these gradients. © 2011 IOP Publishing Ltd.
Editor: 
Rights: fechado
Identifier DOI: 10.1088/2040-8978/13/4/044015
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-79954557674&partnerID=40&md5=f51230e8a13df1fbae23fba46551c4bb
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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