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Rosendo Sanjines

Cette personne a quitté l’EPFL

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Publications associées (57)

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High power impulse magnetron sputtering (HIPIMS) and traditional pulsed sputtering (DCMSP) Ag-surfaces leading to E. coli inactivation

César Pulgarin, Juan Kiwi, Rosendo Sanjines

This study addresses the high power impulse magnetron sputtering (HIPIMS) deposition of Ag-nanoparticle films on polyester and the comparison with films deposited by direct current pulsed magnetron sputtering (DCMSP). The first evidence is presented for th ...

2012

Structure-reactivity relations for DC-magnetron sputtered Cu-layers during E. coli inactivation in the dark and under light

César Pulgarin, Juan Kiwi, Lioubov Kiwi, Rosendo Sanjines

This study addresses unreported features for Cu DC-magnetron sputtering on cotton mediating inactivation of Escherichia coil K12 (from now on E. coil). In-depth profile for the different Cu-species inside the cotton fibers was determined by 5 key Ar+ etchi ...

2010

Effect of the spectral properties of TiO2, Cu, TiO2/Cu sputtered films on the bacterial inactivation under low intensity actinic light

César Pulgarin, Juan Kiwi, Sami Rtimi, Rosendo Sanjines

Bacterial inactivation by TiO2, Cu and TiO2/Cu DC-magnetron sputtered thin films was systematically investigated in the dark and under low intensity visible/actinic light. Low intensity actinic light led to a fast 6log10 (complete) bacterial inactivation w ...

Elsevier2012

Control of morphology (ZrN crystallite size and SiNx layer thickness) in Zr-Si-N nanocomposite thin films

Rosendo Sanjines, Silviu Cosmin Sandu

DC reactive magnetron sputtering was used for the deposition of Zr–Si–N thin films. Four series of samples have been deposited at various substrate temperatures TS: 300 K, 510 K, 710 K and 910 K. Depending on TS, different N2 partial pressures pN2 were req ...

2008

TiON and TiON-Ag sputtered surfaces leading to bacterial inactivation under indoor actinic light

César Pulgarin, Juan Kiwi, Sami Rtimi, Michaël Bensimon, Rosendo Sanjines

This study reports the details Escherichia coli inactivation kinetics on TiON and TiON-Ag films sputtered on polyester by direct current reactive magnetron sputtering (DC) and pulsed magnetron sputtering (DCP) in an Ar/N2 /O2 atmosphere. The use of TiON le ...

2013

Low resistivity Ru1-xTixO2 thin films deposited by hybrid high-power impulse magnetron sputtering and direct current magnetron sputtering technique

Alireza Karimi, Arnaud Magrez, Silviu Cosmin Sandu, Rosendo Sanjines

The present paper reports on an experimental investigation of the structural, electrical and optical properties of Ru rich Ru1-xTixO2 thin films. Rutile single-phaseRu(1-x)Ti(x)O(2) thin films have been deposited by reactive hybrid High-power impulse magne ...

2019

Nanoimprint Lithography with UV-Curable Hyperbranched Polymer Nanocomposites for Optical Biosensing Applications

Jan-Anders Edvin Maansson, Yves Leterrier, Rosendo Sanjines, Valérie Geiser

2010

Innovative photo-Fenton catalysis by PE-FeOx films leading to methylene blue (MB) degradation: Kinetics, surface properties and mechanism

César Pulgarin, Juan Kiwi, Rosendo Sanjines, Laura Victoria Suárez Murillo

This study reports an innovative preparation polyethylene-FeOx (PE-FeOx films) leading to the degradation of the methylene blue (MB) dye under low intensity sunlight/visible light (>400 nm). The intermediate highly oxidative radicals generated by PE-FeOx l ...

Elsevier2016

Kinetics and mechanism for transparent polyethylene-TiO2 films mediated self-cleaning leading to MB dye discoloration under sunlight irradiation

César Pulgarin, Juan Kiwi, Sami Rtimi, Rosendo Sanjines

Polyethylene-TiO2 (from now on PE-TiO2) transparent, non-scattering sputtered films have been found effective in the discoloration of methylene blue (MB) under low intensity solar simulated light. By Fourier transform attenuated infrared spectroscopy (ATR- ...

Elsevier Science Bv2015

Design, testing and characterization of innovative TiN–TiO2 surfaces inactivating bacteria under low intensity visible light

César Pulgarin, Juan Kiwi, Sami Rtimi, Rosendo Sanjines

Ti was sputtered in a plasma chamber under a N2 atmosphere, depositing TiN films on polyester fibers. These films show a significant adsorption in the visible spectral region. A TiN layer 50 nm thick sputtered for 3 min under low intensity/actinic visible ...

Royal Soc Chemistry2012

Innovative self-sterilizing transparent Fe-phosphate polyethylene films under visible light

César Pulgarin, Juan Kiwi, Sami Rtimi, Rosendo Sanjines

An account of stable, uniform and adhesive high-density polyethylene terephthalate Fe-phosphate (FeOx-POx-HDPET) sputtered thin films showing absorption in the visible region up to 700 nm compared to POx presenting absorption below 300 nm. These film were ...

RSC Publishing2016

Nanowire superconducting single-photon detectors on GaAs for integrated quantum photonic applications

Rosendo Sanjines

We demonstrate efficient nanowire superconducting single photon detectors (SSPDs) based on NbN thin films grown on GaAs. NbN films ranging from 3 to 5 nm in thickness have been deposited by dc magnetron sputtering on GaAs substrates at 350 degrees C. These ...

AIP American Institute of Physics2010

TaSiN nanocomposite thin films: Correlation between structure, chemical composition, and physical properties

Rosendo Sanjines, David Oezer

The structural and electronic properties of fcc-TaN/SiNx nanocomposite thin films deposited by reactive magnetron sputtering have been investigated as function of the N and Si contents. Our studies have been mainly focused on three different types of nanoc ...

Elsevier Science Sa2014

Preparation and characterization of antimony-doped SnO2 thin films on gold and silver substrates for electrochemical and surface plasmon resonance studies

Rosendo Sanjines

The paper reports on the deposition of thin antimony (Sb)-doped SnO2 films onto gold and silver substrates using magnetron sputtering. The influence of the SnO2:Sb film on the electrochemical and surface plasmon resonance properties is investigated. The be ...

Elsevier2008

LaTiO2N/In2O3 photoanodes with improved performance for solar water splitting

Michael Graetzel, Kevin Sivula, Rosendo Sanjines, Takashi Hisatomi, Nicolas Xanthopoulos

LaTiO2N photoanodes for solar water splitting were prepared by electrophoretic deposition and demonstrated the best photo-currents ever reported for this material. Further important enhancement of the performance was obtained by the use of a sputtered In2O ...

Royal Society of Chemistry2012

E-MRS 2015 Symposium EE: Protective coatings and thin films Preface

Rosendo Sanjines

Elsevier Science Sa2016

Innovative semi-transparent nanocomposite films presenting photo-switchable behavior and leading to a reduction of the risk of infection under sunlight

César Pulgarin, Juan Kiwi, Sami Rtimi, Rosendo Sanjines

Novel sputtered polyethylene-TiO2 (PE-TiO2) thin films induce fast bacterial inactivation with concomitant photo-switchable hydrophobic to hydrophilic transition under light. RF-plasma pretreatments allowed an increased TiO2 loading on PE, favorably affect ...

Royal Soc Chemistry2013