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Andrzej Kulik

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Publications associées (49)

Gene-mediated Restoration of Normal Myofiber Elasticity in Dystrophic Muscles

Andrzej Kulik, Nicolas Mermod, Damien Saugy, Stefania Puttini

Dystrophin mediates a physical link between the cytoskeleton of muscle fibers and the extracellular matrix, and its absence leads to muscle degeneration and dystrophy. In this article, we show that the lack of dystrophin affects the elasticity of individua ...

2009

Temperature-Dependent Elasticity of Microtubules

László Forró, Andrzej Kulik, Andras Kis, Sandor Kasas

Central to the biological function of microtubules. is their ability to modify their length which occurs by addition and removal of subunits at the ends of the polymer, both in vivo and in vitro. This dynamic behavior is strongly influenced by temperature. ...

American Chemical Society2008

Fibrogenic fibroblasts increase intercellular adhesion strength by reinforcing individual OB-cadherin bonds

Andrzej Kulik, Jean-Jacques Meister, Philippe Pittet, Boris Hinz, Kyumin Lee

We have previously shown that the switch from N-cadherin to OB-cadherin expression increases intercellular adhesion between fibroblasts during their transition from a migratory to a fibrogenic phenotype. Using atomic force microscopy we here show that part ...

2008

A displacement sensing nanoindentation study of tribo-mechanical properties of the Ni-Co system

Andrzej Kulik

An analysis of the tribo-mechanical properties of the Ni-Co system, at the submicrometric contact scale, is conducted using displacement sensing nanoindentation. In particular, the influence of contact depth and surface finishing methods on the hardness, H ...

2008

The increase in protein contour length depends on mechanical unfolding conditions

László Forró, Andrzej Kulik

Many proteins in alive organisms have a domain structure providing them the possibility to reversible unfolding, which seems to play an essential role in those processes occurring in tissues which are controlled by mechanical cellular tension. In this work ...

2008

Preparation, stabilization and characterization of TiO2 on thin polyethylene films (LDPE): Photocatalytic applications

Philippe Buffat, Juan Kiwi, Lioubov Kiwi, Andrzej Kulik, Albert Renken, Danièle Laub, Kyumin Lee

An innovative way to fix preformed nanocrystalline TiO2 on low-density polyethylene film (LDPE-TiO2) is presented. The LDPE-TiO2 film was able to mediate the complete photodiscoloration of Orange II using about seven times less catalyst than a TiO2 suspens ...

2007

Nanomechanical investigation of $Mo_6S_{9-x}I_x$ nanowire bundles

László Forró, Andrzej Kulik, Andras Kis, Dragan Mihailovic

Wiley-Blackwell2007

Uniformly Dispersed Deposition of Colloidal Nanoparticles and Nanowires by Boiling

László Forró, Andrzej Kulik, Gerit Kulik, Jürgen Brugger, Jin Won Seo, Sylvia Jeney, Arnaud Magrez, Kyumin Lee, Martial Duchamp, Ravi Shankar Sundaram

Uniformly dispersed deposition of various nanoparticles (gold and silver of 20?50 nm) and nanowires (ZnO and VOx) on different surfaces (Si, GaAs, mica, and steel) was obtained by boiling colloid drops on preheated substrates. Our results suggest a deposit ...

AIP American Institute of Physics2007

Diameter-Dependent Elastic Modulus Supports the Metastable-Catalyst Growth of Carbon Nanotubes

László Forró, Andrzej Kulik, Jin Won Seo, Branimir Lukic, Arnaud Magrez, Kyumin Lee

We measured the elastic modulus of individual multiwalled carbon nanotubes (MWCNTs) grown by catalytic chemical vapor deposition (CVD) over a broad diameter range (10-25 nm). Alternating current (ac) dielectrophoresis was used for efficient tube deposition ...

American Chemical Society (ACS)2007

Ob-cadherin establishes mechano-resistant junctions between myofibroblasts

Andrzej Kulik, Jean-Jacques Meister, Philippe Pittet, Boris Hinz, Kyumin Lee

2007

Atomic force microscopy and quartz crystal microbalance study of the lectin-carbohydrate interaction kinetics

László Forró, Andrzej Kulik

2007

Erratum to “Preparation, stabilization and characterization of TiO2 on thin polyethylene films (LDPE). Photocatalytic applications"

Philippe Buffat, Juan Kiwi, Lioubov Kiwi, Andrzej Kulik, Albert Renken, Danièle Laub, Kyumin Lee

2007

Motion of a colloidal particle in an optical trap

László Forró, Andrzej Kulik, Branimir Lukic, Sylvia Jeney

Thermal position fluctuations of a colloidal particle in an optical trap are measured with microsecond resolution using back-focal-plane interferometry. The mean-square displacement MSD(t) and power spectral density are in excellent agreement with the theo ...

2007

Effect of electron and ultraviolet irradiation on aligned carbon nanotube fibers

László Forró, Andrzej Kulik, Richard Gaal, Csilla Mikó, Jin Won Seo

2006

Effect of ultraviolet light irradiation on macroscopic single-walled carbon nanotube bundles

László Forró, Andrzej Kulik, Richard Gaal, Mirko Milas, Csilla Mikó, Jin Won Seo

2006

Specific detection of glycans on a plasma membrane of living cells with atomic force microscopy

Andrzej Kulik

2006

Adhesion hysteresis and friction at nanometer and micrometer lengths

Gérard Gremaud, Andrzej Kulik

2006

Electrically conducting probes with full tungsten cantilever and tip for scanning probe applications

Andrzej Kulik, Giovanni Boero, Florian Calame, Jürgen Brugger, Johannes Steen, Kyumin Lee

We have developed a new hybrid AFM probe combining an SU-8 polymer body with a full tungsten cantilever having a nanometric tip. The fabrication is based on surface micromachining a silicon wafer, where tungsten is sputter deposited in oxidation sharpened ...

2006

Lectin-carbohydrate affinity measured using a quartz crystal microbalance

László Forró, Andrzej Kulik

2006

Versatile force-feedback manipulator for nanotechnology applications

Sébastien Grange, Charles Baur, László Forró, Gérard Gremaud, Andrzej Kulik, Raphaël Foschia, Kyumin Lee, Marc Jobin

2005

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