Impact of polymer-modified gold nanoparticles on brain endothelial cells: exclusion of endoplasmic reticulum stress as a potential risk factor

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Ultrasensititve system for the real time detection of H2O2 based on strong coupling in a bio-plasmonic system

Olivier Martin, Christian Santschi, Shourya Dutta Gupta

We theoretically investigate the dependence of the different parameters of an optical biosensor for the detection of Hydrogen peroxide (H2O2) based on absorption enhancement of Cytochrome c molecules near gold nanoparticles. H2O2 is a major reactive oxygen ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012

Increase of arginase activity in old apolipoprotein-E deficient mice under Western diet associated with changes in neurovascular unit

Rafaela Fernandes Da Silva, Jean-Christophe Copin

Aging and atherosclerosis are well-recognized risk factors for cardiac and neurovascular diseases. The Apolipoprotein E deficient (ApoE-/-) mouse on a high-fat diet is a classical model of atherosclerosis, characterized by the presence of atherosclerotic p ...

Biomed Central Ltd2012

Synthesis, characterization, DNA interaction and potential applications of gold nanoparticles functionalized with Acridine Orange fluorophores

Alberto Schena

Two new water-soluble gold nanoparticles (AO-TEG-Au and AO-PEG-Au NPs) are prepared and characterized. They are stabilized by thioalkylated oligoethylene glycols and functionalized with fluorescent Acridine Orange (AO) derivatives. Despite the different co ...

2011

Self-Assembly of ß-Amyloid Peptides in Cells and on Solid Supports

Enrico Condemi

Neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and Huntington's disease share common mechanisms characterized by protein misfolding and aggregation, including formation of plaques or inclusion bodies. The rapid growing number o ...

EPFL2011

Low-Stress UV-Curable Hyperbranched Polymer Nanocomposites for High-Precision Devices

Valérie Geiser

The aim of this thesis was to investigate the process-structure-property relationships of UV-curable hyperbranched polymer (HBP)/silica nanocomposites. Special attention was paid to the interplay between photo-conversion, rheological behavior, shrinkage, a ...

EPFL2010

Advanced surface derivatization of superparamagnetic iron oxide nanoparticles in a fixed bed magnetic reactor for bio-application

Jatuporn Salaklang

There is an enormous interest in exploiting nanoparticles in various biomedical applications since their size scale is similar to that of biological molecules (e.g., proteins, DNA) and structures (e.g., viruses and bacteria). As the field continues to deve ...

EPFL2009

Dielectrophoresis-based continuous-flow particle microreactor

Raphaël Tornay

This thesis mainly deals with the integration of a microfluidic system for the extraction of micrometric and submicrometric particles from a solution. Traditional methods take from several minutes to hours to separate particles from a solution. Microfluidi ...

EPFL2009

Exploiting immunofunctional nanoparticles as vaccines and synthetic pathogens

Sai Reddy

The emergence of recombinant DNA technology has shifted research towards developing subunit vaccines, which use protein or peptide antigens instead of live/attenuated pathogens. Recent research has also shown that the best way to get sustained immunity is ...

EPFL2008

Novel applications of poly(ethylene glycol)-bl-poly(propylene sulfide) block copolymers

Conlin O'Neil

Block copolymers are comprised of repeating chemical groups (blocks) which commonly contain at least one hydrophilic block coupled to at least one hydrophobic block, forming an amphipathic macromolecule. This molecular arrangement drives the self assembly ...

EPFL2008

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