Publications by Paola Vagni | EPFL Graph Search

POLYRETINA restores light responses in vivo in blind Gottingen minipigs

Diego Ghezzi, Marta Jole Ildelfonsa Airaghi Leccardi, Paola Vagni, Elodie Geneviève Zollinger, Charles-Henri Puncho Jérôme Vila, Golnaz Sherafatipour

Retinal prostheses hold potential for artificial vision in blind people. Here, authors show that POLYRETINA, a large and high-density photovoltaic epiretinal device, restores light-evoked cortical responses in blind Gottingen minipigs at safe irradiance le ...

NATURE PORTFOLIO2022

All-polymeric transient neural probe for prolonged in-vivo electrophysiological recordings

Diego Ghezzi, Laura Ferlauto, Paola Vagni, Adele Fanelli, Elodie Geneviève Zollinger

Transient bioelectronics has grown fast, opening possibilities never thought before. In medicine, transient implantable devices are interesting because they could eliminate the risks related to surgical retrieval and reduce the chronic foreign body reactio ...

2021

Spatially selective activation of the visual cortex via intraneural stimulation of the optic nerve

Silvestro Micera, Diego Ghezzi, Fiorenzo Artoni, Paola Vagni, Vivien Gaillet, Ariastity Mega Pratiwi, Dario Lipucci Di Paola

Retinal prostheses can restore a functional form of vision in patients affected by dystrophies of the outer retinal layer. Beyond clinical utility, prostheses for the stimulation of the optic nerve, the visual thalamus or the visual cortex could also serve ...

2019

Gene Editing Preserves Visual Functions in a Mouse Model of Retinal Degeneration

Diego Ghezzi, Paola Vagni, Naïg Aurelia Ludmilla Chenais, Tommaso Marchetti

Inherited retinal dystrophies (IRDs) are a large and heterogeneous group of degenerative diseases caused by mutations in various genes. Given the favorable anatomical and immunological characteristics of the eye, gene therapy holds great potential for thei ...

2019

Investigating Single and Multi-Channel Electrical Stimulation of the Optic Nerve for Neuroprosthetic Applications

Silvestro Micera, Diego Ghezzi, Fiorenzo Artoni, Paola Vagni, Vivien Gaillet

Here we demonstrate the ability to selectively activate different portions of the optic nerve with a novel nerve interface, the OpticSELINE, and show the possibility to improve the spatial selectivity of the electrical stimulation using current focusing ac ...

2019

Preservation of visual function in an animal model of retinal degeneration using CRISPR/Cas9 gene editing

Diego Ghezzi, Paola Vagni, Tommaso Marchetti

Aims: Inherited Retinal Disorders represent a difficult target for gene therapy. This study exploits the possibility of using CRISPR/Cas9-based gene editing in photoreceptor progenitors to prevent cell death. We performed all the experiments on Rd10 mice, ...

2018

Design and validation of a foldable and photovoltaic wide-field epiretinal prosthesis

Diego Ghezzi, Kevin Sivula, Samuel Charles Antoine Gilliéron, Marta Jole Ildelfonsa Airaghi Leccardi, Laura Ferlauto, Paola Vagni, Naïg Aurelia Ludmilla Chenais, Michele Bevilacqua

Retinal prostheses have been developed to fight blindness in people affected by outer retinal layer dystrophies. To date, few hundred patients have received a retinal implant. Inspired by intraocular lenses, we have designed a foldable and photovoltaic wid ...

2018

In vivo electrical stimulation of the optic nerve and hybrid computational model for neuroprosthetic applications

Silvestro Micera, Diego Ghezzi, Samuel Charles Antoine Gilliéron, Fiorenzo Artoni, Paola Vagni, Vivien Gaillet

Blindness affects millions of people worldwide, dramatically decreasing their quality of life. Retinal dystrophies, such as age related macular degeneration and Retinitis Pigmentosa, which are leading causes of blindness in industrialized countries, curren ...

2018

Development and Characterization of PEDOT:PSS/Alginate Soft Microelectrodes for Application in Neuroprosthetics

Diego Ghezzi, Marc Olivier Heuschkel, Flavio Maurizio Mor, Marta Jole Ildelfonsa Airaghi Leccardi, Laura Ferlauto, Paola Vagni, Estelle Annick Cuttaz

Reducing the mechanical mismatch between the stiffness of a neural implant and the softness of the neural tissue is still an open challenge in neuroprosthetics. The emergence of conductive hydrogels in the last few years has considerably widened the spectr ...

2018

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