Publications by Kristopher Pataky

Carbon nanotubes-SU8 composite for flexible conductive inkjet printable applications

László Forró, Richard Gaal, Jürgen Brugger, Arnaud Magrez, Kristopher Pataky, Marijana Mionic Ebersold

We have developed a conducting composite based on multi-walled carbon nanotubes and bisphenol A novolak epoxy resin (SU8) for inkjet printing purposes. We could deposit regular conducting stripes and arrays of 150 mu m spots on glass and on flexible polyet ...

Royal Society of Chemistry2012

Link between Alginate Reaction Front Propagation and General Reaction Diffusion Theory

Philippe Renaud, Jürgen Brugger, Thomas Michael Braschler, Kristopher Pataky, Ana Valero, Ludovica Colella

We provide a common theoretical framework reuniting specific models for the Ca2+-alginate system and general reaction diffusion theory along with experimental validation on a microfluidic chip. As a starting point, we use a set of nonlinear, partial differ ...

2011

Stencil Lithography and Inkjet Printing as New Tools for Life Sciences Research

Kristopher Pataky

This thesis work focuses on applying microtechnology to produce three toolkits for life-sciences research. The first technique presented is nanostencil lithography for patterning cell adhesions. Nanostencil lithography is a shadow-mask micro and nanopatter ...

EPFL2011

Collimator

Jürgen Brugger, Kristopher Pataky

The present invention is directed to a collimator that comprises grooves or channels in the submicrometer to micrometer range. The present invention is also related to uses of a collimator and collimator holder as described herein as well as apparatuses co ...

2010

Fluidic microstructuring of alginate hydrogels for the single cell niche

Philippe Renaud, Jürgen Brugger, Thomas Michael Braschler, Kristopher Pataky, Ana Valero, Ludovica Colella

Controlling alginate gel formation by diffusion of Ca2+ ions through a filter barrier, a layer-by-layer deposition technique with resolution on the size scale of a single cell is presented. It offers the possibility of exposing cells under biocompatible co ...

Royal Society of Chemistry2010

Microcollimator for Micrometer-Wide Stripe Irradiation of Cells Using 20–30 keV X Rays

Jürgen Brugger, Kristopher Pataky, Luis Guillermo Villanueva Torrijo

The exposure of subnuclear compartments of cells to ionizing radiation is currently not trivial. We describe here a collimator for micrometer-wide stripe irradiation designed to work with conventional high-voltage X-ray tubes and cells cultured on standard ...

2009

High-Fidelity Printing Strategies for Printing 3D Vascular Hydrogel Structures

Matthias Lütolf, Philippe Renaud, Jürgen Brugger, Thomas Michael Braschler, Kristopher Pataky

Vascularization arguably poses the most significant hurdle for the success of most biomaterials-based tissue engineering therapies. In this work, we report two printing strategies that permit the 3D Inkjet printing of fluorescent alginate hydro gels into o ...

Soc Imaging Science & Technology, 7003 Kilworth Lane, Springfield, Va 22151 Usa2009

An Oligomerized 53BP1 Tudor Domain Suffices for Recognition of DNA Double-Strand Breaks

Jürgen Brugger, Kristopher Pataky

53BP1, the vertebrate ortholog of the budding yeast Rad9 and fission yeast Crb2/Rhp9 checkpoint proteins, is recruited rapidly to sites of DNA double-strand breaks (DSBs). A tandem tudor domain in human 53BP1 that recognizes methylated residues in the hist ...

2009

Nanostencil and InkJet Printing for Bionanotechnology Applications

Jürgen Brugger, Kristopher Pataky, Oscar Vazquez Mena

In this contribution we describe the application of Ink-Jet printing and Stencil Lithography in bionanotechnology. Both techniques are alternative patterning methods that can be used for the fabrication of biocompatible micro- and nanostructures out of the ...

2009

Etching of sub-micrometer structures through Stencil

Jürgen Brugger, Marc Antonius Friedrich van den Boogaart, Kristopher Pataky, Oscar Vazquez Mena, Katrin Sidler Arnet, Andreea Veronica Savu, Luis Guillermo Villanueva Torrijo

Resistless processes to realize the pattern transfer of your designs into the substrate present some advantages, as the reduction in fabrication steps. Stencil Lithography (SL) is one of the most used resistless processes and, up to now, it has mainly been ...

2008

NMR spectroscopy and perfusion of mammalian cells using surface microprobes

Pierre-André Besse, Radivoje Popovic, Florian Maria Wurm, Mathieu Benjamin Stettler, Jürgen Brugger, Klaus Ehrmann, Kristopher Pataky

NMR spectra of mammalian cells are taken using surface microprobes that are based on microfabricated planar coils. The surface microprobe resembles a miniaturized Petri dish commonly used in biological research. The diameter of the planar coils is 1 mm. Ch ...

2007