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Accueil du site > Séminaires > Année en cours > Jacques Dumais

Two secret ingredients of plant microfluidics : water and cellulose

Jacques Dumais

11h / salle C. Brot

Plants offer many elegant examples of microfluidic systems - while some are active and others are passive, all of them are based on two simple ingredients : water and cellulose. In this talk, I will first survey some of the most intriguing uses of water and cellulose in plants. I will then discuss in detail two plant microfluidic systems that are most prosiming for technological applications : the hygroscopic movement of cellulosic tissues and the passive actuation of valves.

References

[1] Dumais J and Y Forterre. 2012. “Vegetable Dynamicks” : The role of water in plant movements. Ann. Rev. Fluid Mech. 44 : 453–78.

[2] Noblin X, N Rojas, J Westbrook, C Llorens, M Argentina, and J Dumais. 2012. The fern spo-rangium : a unique catapult. Science 335 : 1322.

[3] Evangelista D, S Hotton, and J Dumais. 2011. The mechanics of explosive dispersal and self-burial in the seeds of the filaree, Erodium cicutarium. J. Exp. Biol. 214 : 521-529.

[4] Katifori E, S Alben, E Cerda, DR Nelson, and J Dumais. 2010. Foldable structures and the natural design of pollen grains. Proc. Nat. Acad. Sci. USA 107 : 7635- 7639

Mots-clés

Fluides & Matériaux Complexes