Homepage for Yoav Tsori

 

Yoav Tsori - pictureDepartment of Chemical Engineering
Ben Gurion University of the Negev
Beer-Sheva, 84105, Israel
 
Member of:
Reimund Stadler Minerva Center
Ilse Katz Institute for Nanoscale Science and Technology
 
Phone: +972-8-6477794
Fax:     +972-8-6472916
E-mail:  tsori at bgu.ac.il
 


 

Research interests:
 
Theoretical understanding of interfacial phenomena at the micron
   and sub-micron scales.
 
Phase-transitions in liquid mixtures under external spatially nonuniform electric
   or gravitational fields. Phase-separation in ion-containing mixtures.
 
Theoretical study of phase-transitions and structural changes in ordered
   phases of block-copolymers, as a result of confinement, elastic forces,
   or external electric field. Orientation of ordered phases confined to thin-films.
 
Conformations of curved objects (i.e. micelles) near solid surfaces.
   Competition between entropic, elastic and enthalpic forces.
 
Non-trivial polymer brush conformations when the end-groups are charged.
 
"Bacteria optics" : E. Coli bacteria sometimes behave in wave-like fashion.
  The similarity and dissimilarity with optics is explored in these complex systems.
 
 
Students:

Sela - picture         Hagai - picture
             
Sela Samin                                                                Hagai Shalev

CV
click here


Books
Polymers, liquids and colloids in electric fields: Interfacial instabilities, orientation,
And phase-transitions”
Eds. Y. Tsori and U. Steiner, World Scientific (2008).

book cover
http://www.worldscibooks.com/physics/7266.html
 
 
Book chapters
Y. Tsori, External-Field Induced Pattern Formation in Some Polymer Systems,
in Nonlinear Dynamics in Polymeric Systems, ACS Symposium Series No. 869;
Eds. Pojman, J. A.; Tran-Cong-Miyata, Q.; Oxford University Press: Oxford, 2003; pp 264.
 
 
List of publications

30. S. Samin and Y. Tsori, Stability of Binary Mixtures in Electric Field Gradients
      J. Chem. Phys. 131, 194102 (2009) [arXiv:0907.4855] [pdf].


29. Y. Tsori, Colloquium: Phase Transitions in Polymers and Liquids in Electric Fields,
       Rev. Mod. Phys. 81, 1471 (2009) [arXiv:0912.1736] [pdf].


28. G. Marcus and Y. Tsori, Phase Separation Transition in Liquids and Polymers Induced
       by Electric Field Gradients,
       
J. Phys. Soc. Jap. 78, 041010 (2009) [arXiv:0901.1990] [pdf].

27. G. Marcus, S. Samin and Y. Tsori, Phase-Separation Transition in Liquid Mixtures
       Near Charged Objects,
      
J. Chem. Phys. 129, 061101 (2008) [arXiv:0712.2901] [pdf].

26. Y. Tsori, D. Andelman, and J.-F. Joanny, Interfacial Instability of Charged End-Group  
       Polymer Brushes,,
      
Europhys. Lett. 82, 46001 (2008) [arXiv:0801.3318] [pdf].

25. Y. Tsori and L. Leibler, Phase-Separation of Miscible Liquids in a Centrifuge,
     
C. R. Physique 8, 955 (2007) [arXiv:0707.2266] [pdf]

24. Y. Tsori, Discontinuous Meniscus Location in Tapered Capillaries Driven by Pressure
      Difference and Dielectrophoretic Forces,
     
Langmuir 23, 8028 (2007) [cond-mat/0702099] [pdf].

23. Y. Tsori and L. Leibler, Phase-Separation in Ion-Containing Mixtures in Electric Fields,
     
Proc. Natl. Acad. Sci. USA 104, 7348 (2007) [cond-mat/0610475] [pdf].

22. Y. Tsori, Lamellar Phase in Nonuniform Electric Fields: Breaking the In-Plane Rotation
      Symmetry and the Role of Dielectric Constant Mismatch,
     
Macromolecules 40, 1698 (2007) [cond-mat/0609319] [pdf].

21. Y. Tsori, Discontinuous Liquid Rise in Capillaries With Varying Cross-Sections,
     
Langmuir 22, 8860 (2006) [cond-mat/0604231] [pdf].

20. Y. Tsori, C.-Y. Li, D. Andelman and M. Schick, Block-Copolymers in Electric Field --
      A Comparison of Single-Mode and Self-Consistent Field Approximations,
    
Macromolecules 39, 289 (2006) [cond-mat/0508179] [pdf].

19. Y. Tsori and D. Andelman, Coarse Graining in Block Copolymer Films,
      
J. Pol. Sci.: Pol. Phys. B 44, 2725 (2006) [cond-mat/0603096] [pdf].

18. Y. Tsori, E. Sivaniah, D. Andelman and T. Hashimoto, Orientational transitions
      in symmetric diblock copolymers on rough surfaces,
     
Macromolecules (note) 38, 7193 (2005) [cond-mat/0504410] [pdf].

17. Y. Tsori and L. Leibler, Electrostatic Cancellation of Gravity Effects in Liquid Mixtures,
     
Phys. Rev. E (Brief Reports) 71, 032101 (2005) [cond-mat/0501744] [pdf].

16. Y. Tsori and P.-G. de Gennes, Damping of Acoustic Waves in Dilute Polymer Solutions,
     
Macromolecules (Communication to the Editor) 37, 8195 (2004) [cond-mat/0407698] [pdf].

15. Y. Tsori, F. Tournilhac and L. Leibler, Demixing in Simple Fluids Induced by Electric Field Gradients,
     
Nature 430, 544 (2004) [pdf].

14. Y. Tsori and P.-G. de Gennes, Frustrated Rotations in Nematic Monolayers,
     
Eur. Phys. J. E 14, 91 (2004) [cond-mat/0404259] [pdf].

13. Y. Tsori and P.-G. de Gennes, Self Trapping of a Single Bacterium in its Own Chemoattractant,
      
Europhys. Lett. 66, 599 (2004) [q-bio.PE/0405005] [pdf].
12. Y. Tsori, Controlled Pattern Formation in some Block Copolymer Systems,
      ACS symposium series 869, 264-275 (2004).


11. Y. Tsori and D. Andelman, Parallel and Perpendicular Lamellae on Corrugated Surfaces,
     
Macromolecules 36, 8560 (2003) [cond-mat/0304334] [pdf].

10. Y. Tsori, F. Tournilhac and L. Leibler, Orienting Ion-Containing Block Copolymers
      Using AC Electric Fields,
     
Macromolecules 36, 5873 (2003) [cond-mat/0301116] [pdf].

9. Y. Tsori, F. Tournilhac, D. Andelman and L. Leibler, Structural Changes in Block Copolymers:
     Coupling of Electric Field and Mobile Ions,
   
Phys. Rev. Lett. 90, 145504 (2003) [cond-mat/0208129] [pdf].

8. Y. Tsori and D. Andelman, Ordering Mechanisms in Confined Diblock Copolymers,
   
J. Interf. Sci. 11, 259 (2003) [cond-mat/0208127] [pdf].

7. Y. Tsori and D. Andelman, Thin Films of Diblock Copolymer in Electric Field:
    Transition from Perpendicular to Parallel Oriented Lamellae,
    
Macromolecules 35, 5161 (2002) [cond-mat/0110282] [pdf].

6. Y. Tsori and D. Andelman, Diblock Copolymers Thin Films: Parallel and Perpendicular
    Lamellar Phases in the Weak Segregation,
   
Eur. Phys. J. E. 5, 605 (2001) [cond-mat/0105213] [pdf].

5. Y. Tsori and D. Andelman, Surface Induced Ordering in Thin Film Diblock Copolymers:
    Tilted Lamellar Phases,
   
J. Chem. Phys. 115, 1970 (2001) [cond-mat/0103250] [pdf].

4. Y. Tsori and D. Andelman, Diblock Copolymer Ordering Induced by Patterned
    Surfaces Above the Order-Disorder Transition,
  
Macromolecules 34, 2719 (2001) [cond-mat/0007055] [pdf].

3. Y. Tsori and D. Andelman, Diblock Copolymer Ordering Induced by Patterned Surfaces,
   
Europhys. Lett. 53, 722 (2001) [cond-mat/0007056] [pdf].

2. Y. Tsori, D. Andelman and M. Schick, Defects in Lamellar Diblock Copolymers:
    Chevron- and Omega-shaped tilt Boundaries,
   
Phys. Rev. E. 61, 2848 (2000) [cond-mat/9905378] [pdf].

1. B. Meerson and Y. Tsori, Annular Ballast Resistor: Symmetry Breaking,
    Pinning and Coarsening in a Globally Constrained Reaction-Diffusion System,
   
Phys. Rev. E. 57, 159 (1998) [pdf].