Béla Joós

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Béla Joós

Department of Physics

Macdonald Hall

150 Louis Pasteur

Ottawa, Ontario, Canada

K1N 6N5

TEL.: 613-562-5758

FAX: 613-562-5190

E-MAIL: bjoos@uottawa.ca

ENSEIGNEMENT:
PHY4322/5322: Biological Physics (Winter 2010)

Education:

B. Sc. (Loyola of Montreal), 1974
Ph. D. (McGill University), 1979

Brief Summary of Career History:

University of California at Berkeley (1979-81)

Simon Fraser University and University of British Columbia (1981-84)

University of Ottawa / Université d’Ottawa (1984-).

Other functions /Autres fonctions

Editor / Rédacteur en chef

Physics in Canada / La Physique au Canada

Membership:

Canadian Association of Physicists (http://www.cap.ca)

American Physical Society (http://www.aps.org)

Biophysical Society (http://www.biophysics.org)

Institute of Physics (fellow) (http://iop.org)

Cellular materials under stress.

Condensed Matter Physics, Materials Science, Biophysics.

Cells under stress, some current topics: traumatized axons (effect of stretch on voltage gated channels and propagation and initiation of action potentials; modeled vesicles subjected to deformations, pressed through nanopores, with nuclear material, cytoskeleton, … ; mechanosensitive proteins, mechanical properties of single macromolecules, disordered proteins. Statistical mechanics modeling. Continuum models. Elasticity theory. Molecular dynamics simulation.

Recent Publications

Morris CE, Juranka PF, Joós B. Perturbed voltage-gated channel activity in perturbed bilayers: implications for ectopic arrhythmias arising from damaged membrane (preprint) (submitted to Progress in Biophysics and Molecular Biology)

Boucher P-A, Joós B, Morris CE. Coupled left-shift of Nav channels: modeling the Na+ loading and dysfunctional excitogenicity of damaged neurons. (preprint) (accepted J. Comp. Neuro.)

Morris CE, Boucher P-A, Joós B. Left-shifted Nav channels in trauma-damaged bilayer: primary targets for neuroprotective Nav antagonists? (preprint) (accepted in Frontiers in Pharmacology of Ion Channels and Channelopathies)

Bertrand M, Joós B. Predicting the final size of small vesicles produced by pressure extrusion through nano-channels. (preprint) (submitted to Physical Review E, positive reports, minor revisions)

Bertrand M, Joós B. Thermophoretic stretch of nanoconfined polymers: Model and simulations. (preprint)

Martin Bertrand, Martin Forget, and Béla Joós, “Entropic elasticity of dilated and contorted idealized circular chains”, Phys. Rev. E, 81, 061803 (2010) (pdf

file).

Zicong Zhou and Béla Joós, “Disordered, stretched, and semiflexible biopolymers in two dimensions”, Phys. Rev. E, 80, 061911 (1-13) (2009). (pdf file)

Pierre-Alexandre Boucher, Catherine Morris, and Béla Joós, " Mechanosensitive closed-closed transitions in large membrane proteins: osmoprotection and tension damping", Biophys. J. 97, 2761-2770 (2009) (pdf file, appendix)

Zicong Zhou and Béla Joós, “Sequence dependent effects on the properties of semiflexible biopolymers”, Phys. Rev. E, 77, 061906 (1-5) (2008). (pdf file)

Matthew L. Wallace and Béla Joós, “Microstructure and dynamics of a polymer glass subjected to instantaneous shear strain”, J. Phys. Cond. Matt. 20, 244130 (1-5) (2008). (pdf file)

Zicong Zhou, Béla Joós, Pik-Yin Lai, Yuan-Shin Young, and Jeng-Huey Jan, “Elasticity and Stability of a helical filament with spontaneous curvatures and isotropic bending rigidity”, Mod. Phys. Lett. B 21, 1895-1913 (2007). (pdf file)

Alain Gauthier and Béla Joós, "Stretching effects on the permeability of water molecules across a lipid bilayer", J. Chem. Phys. 127, 125124 (1-8) (2007) (pdf file).

Pierre-Alexandre Boucher, Béla Joós, Martin Zuckermann, and Luc Fournier, "Pore formation in a lipid bilayer under a tension ramp: modeling the distribution of rupture tensions", Biophys. J. 92 , 4344-4355 (2007) (pdf file).

Matthew L. Wallace and Béla Joós, "Shear induced overaging in a polymer glass", Phys. Rev. Lett. 96, 025501 (2006); 97, 019904 (E) (2006) (pdf file)

Zicong Zhou, Pik-Yin Lai, and Béla Joós, “Elasticity and stability of a helical filament”, Phys. Rev. E 71, 052801 (2005) (pdf file)

Matthew L. Wallace, Béla Joós, and Michael Plischke, "The onset of rigidity in polymer melts with van der Waals interaction", Phys. Rev. E 70, 041501 (2004) (pdf file)

Other publications