Andrzej Kulik

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Related publications (49)

Innovative transparent non-scattering TiO2 bactericide thin films inducing increased E. coli cell wall fluidity

Lioubov Kiwi, César Pulgarin, Juan Kiwi, Andrzej Kulik, Mariusz Andrzejczuk, Sami Rtimi, Rosendo Sanjines

This study presents the first account for transparent, non-scattering TiO2 films on radio-frequency (RF) plasma and ultraviolet light in the C-spectral region (UVC) pretreated polyethylene (PE). These pretreatments allow the PE to bind higher amounts of Ti ...

Elsevier Science Sa2014

Nanoscale infrared imaging of lipoprotein multilayers

Andrzej Kulik

Springer2013

MAR-mediated integration of plasmid vectors for in vivo gene transfer and regulation

Andrzej Kulik, Nicolas Mermod, Stefania Puttini, Déborah Ley, Damien Saugy

Background: The in vivo transfer of naked plasmid DNA into organs such as muscles is commonly used to assess the expression of prophylactic or therapeutic genes in animal disease models. Results: In this study, we devised vectors allowing a tight regulatio ...

BioMed Central2013

A single-molecule stretching method for lateral and normal AFM lever calibration

Giovanni Dietler, Andrzej Kulik, Fabrizio Benedetti

A novel method for quantitative lateral force measurement (LFM) calibration has been developed. Using a single-molecule spectroscopy approach it is possible to calibrate the AFM levers for both lateral and normal spring constants with a single image scan. ...

Institute of Physics2013

Photocatalytic and phototoxic properties of TiO2-based nanofilaments: ESR and AFM assays

László Forró, Arnaud Magrez, Andrzej Kulik, Andrzej Sienkiewicz, Katarzyna Pierzchala

There is uncertainty in understanding of the relationship between physico-chemical parameters of nanosized titanium dioxide (nano-TiO2) and its toxicity when brought into contact with living cells. This study provides a multidisciplinary experimental insig ...

Informa Healthcare2012

E. coli Inactivation by High-Power Impulse Magnetron Sputtered (HIPIMS) Cu Surfaces

César Pulgarin, Juan Kiwi, Andrzej Kulik, Oualid Baghriche

This study reports HIPIMS-sputtered samples of Cu-particulate films with currents at 6 and 60 amps leading to E. coil inactivation. The Cu coverage and nanoparticle structure of the fibers is reported by TEM. Evidence is presented of redox processes in the ...

2011

Characterization of N-cadherin unbinding properties in non-malignant (HCV29) and malignant (T24) bladder cells

Andrzej Kulik

The expression of N-cadherin, characteristic of various cancers, very often leads to changes in the cells' adhesive properties. Thus, we sought to find out if N-cadherin expressed in various, but cancer-related cells, differs in its functional properties t ...

Wiley-Blackwell2011

Model-Based Estimation of Three-Dimensional Stiffness Parameters in Photonic-Force Microscopy

Michaël Unser, Andrzej Kulik, Philippe Thévenaz, Elena Bertseva, Amardeep Singh

We propose a system to characterize the 3-D diffusion properties of the probing bead trapped by a photonic-force microscope. We follow a model-based approach, where the model of the dynamics of the bead is given by the Langevin equation. Our procedure comb ...

Institute of Electrical and Electronics Engineers2010

AFM Force Spectroscopy and Steered Molecular Dynamics Simulation of Protein Contactin 4

Andrzej Kulik, Karolina Anna Mikulska Ruminska

We use a single molecule atomic force spectroscopy combined with the steered molecular dynamics simulation to determine a mechanical behavior of neural cell adhesion protein contactin during its unfolding. Force curves typical for modular proteins were obs ...

Polish Academy of Sciences Warsaw2009

Intracellular nanomanipulation by a photonic-force microscope with real-time acquisition of a 3D stiffness matrix

Michaël Unser, László Forró, Giovanni Dietler, Andrzej Kulik, Philippe Thévenaz, Elena Bertseva, Gérard Gremaud, Sylvia Jeney, Stefania Puttini, Amardeep Singh

A traditional photonic-force microscope (PFM) results in huge sets of data, which requires tedious numerical analysis. In this paper, we propose instead an analog signal processor to attain real-time capabilities while retaining the richness of the traditi ...

Institute of Physics2009

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