Publications by Davide Städler

Functionalized bismuth ferrite harmonic nanoparticles for cancer cells labelling and imaging

Sandrine Gerber, Luigi Bonacina, Giona Sonego, Solène Marcelle Françoise Marie Passemard, Davide Städler

Bismuth ferrite (BFO) harmonic nanoparticles (NPs) display high nonlinear optical efficiency and excellent biocompatibility profile which make them attractive for the development of diagnostic applications as contrast agents. In this study, we present a ge ...

Springer Verlag2015

Cellular uptake and biocompatibility of bismuth ferrite harmonic advanced nanoparticles

Daniel Rytz, Jean-Pierre Wolf, Sandrine Gerber, Luigi Bonacina, Stephanie Hwu, Solène Marcelle Françoise Marie Passemard, Davide Städler

Bismuth Ferrite (BFO) nanoparticles (BFO-NP) display interesting optical (nonlinear response) and magnetic properties which make them amenable for bio-oriented diagnostic applications as intra- and extra membrane contrast agents. Due to the relatively rece ...

Elsevier2015

Simultaneous Multi-Harmonic Imaging of Nanoparticles in Tissues for Increased Selectivity

Jean-Pierre Wolf, Sandrine Gerber, Luigi Bonacina, Sébastien Courvoisier, Solène Marcelle Françoise Marie Passemard, Davide Städler

We investigate the use of Bismuth Ferrite (BFO) nanoparticles for tumor tissue labelling in combination with infrared multi-photon excitation at 1250 nm. We report the efficient and simultaneous generation of second and third harmonic by the nanoparticles. ...

Amer Chemical Soc2015

Deep UV generation and direct DNA photo-interaction by harmonic nanoparticles in labelled samples

Daniel Rytz, Jean-Pierre Wolf, Sandrine Gerber, Luigi Bonacina, Solène Marcelle Françoise Marie Passemard, Davide Städler

A biophotonics approach based on the nonlinear optical process of second harmonic generation is presented and demonstrated on malignant human cell lines labelled by harmonic nanoparticles. The method enables independent imaging and therapeutic action, sele ...

Royal Society of Chemistry2014

Development and evaluation of new nanoprobes for cancer cell targeting and imaging

Davide Städler

EPFL2014

Nonlinear optical and magnetic properties of BiFeO3 harmonic nanoparticles

Daniel Rytz, Jean-Pierre Wolf, Sandrine Gerber, Luigi Bonacina, Solène Marcelle Françoise Marie Passemard, Davide Städler

Second Harmonic Generation (SHG) from BiFeO3 nanocrystals is investigated for the first time to determine their potential as biomarkers for multiphoton imaging. Nanocrystals are produced by an auto-combustion method with 2-amino-2-hydroxymethyl-propane-1,3 ...

American Institute of Physics2014

Convenient synthesis of heterobifunctional poly(ethylene glycol) suitable for the functionalization of iron oxide nanoparticles for biomedical applications

Sandrine Gerber, Luigi Bonacina, Phally Kong, Solène Marcelle Françoise Marie Passemard, Davide Städler

A straightforward route is proposed for the multi-gram scale synthesis of heterobifunctional poly(ethylene glycol) (PEG) oligomers containing combination of triethyloxysilane extremity for surface modification of metal oxides and amino or azido active end ...

Elsevier2013

Surface Modification of Biomaterials for Conjugation with Human Fetal Osteoblasts

Sandrine Gerber, Phally Kong, Françoise Borcard, Céline Marie Anne Journot, Davide Städler

Surface functionalization of hydroxyapatite (HA) and β-tricalcium phosphate (TCP) bioceramics with chemical ligands containing a pyrrogallol moiety was developed to improve the adhesion of bone cell precursors to the biomaterials. Fast and biocompatible co ...

Swiss Chemical Soc2013

Chemical functionalization of bio-ceramics to enhance endothelial cells adhesion for tissue engineering

Sandrine Gerber, Françoise Borcard, Davide Städler

To control the selective adhesion of human endothelial cells and human serum proteins to bioceramics of different compositions, a multifunctional ligand containing a cyclic arginine-glycine-aspartate (RGD) peptide, a tetraethylene glycol spacer, and a gall ...

American Chemical Society2012

Functionalization of microstructured open-porous bio-ceramic scaffolds with human fetal cells

Sandrine Gerber, Corinne Scaletta, Françoise Borcard, Davide Städler

Bone substitute materials allowing trans-scaffold migration and in-scaffold survival of human bone-derived cells are mandatory for development of cell-engineered permanent implants to repair bone defects. In this study, we evaluated the influence on human ...

American Chemical Society2012

Harmonic Nanocrystals for Bio-Labeling: a Survey of Optical Properties and Biocompatibility

Daniel Rytz, Jean-Pierre Wolf, Sandrine Gerber, Rachid Hadji, Luigi Bonacina, Solène Marcelle Françoise Marie Passemard, Davide Städler, Jérôme Extermann

Nonlinear optical nanocrystals have been recently introduced as a promising alternative to fluorescent probes for multi-photon microscopy. We present for the first time a complete survey of the properties of the different nanomaterials proposed to date, de ...

American Chemical Society2012

Covalent cell surface functionalization of human fetal osteoblasts for tissue engineering

Sandrine Gerber, Aurélien Godinat, Corinne Scaletta, Françoise Borcard, Davide Städler

The chemical functionalization of cell-surface proteins of human primary fetal bone cells with hydrophilic bioorthogonal intermediates was investigated. Toward this goal, chemical pathways were developed for click reaction-mediated coupling of alkyne deriv ...

2011