Concept

Potentiel d'électrode

Publications associées (401)

Electrochemical Imaging of Cells and Tissues

Hubert Girault, Andreas Stephan Lesch, Tzu-En Lin

The technological and experimental progress in electrochemical imaging of biological specimens is discussed with a view on potential applications for skin cancer diagnostics, reproductive medicine and microbial testing. The electrochemical analysis of sing ...

2018

Degradation of modular hip joint implants

Angela Bermudez Castañeda

Total hip joint arthroplasty is a medical procedure to replace a natural failed joint by an artificial joint to improve the quality of life of the patient. In spite of its broad success, there is a concern about the relation between the presence of modular ...

EPFL2018

Boosting the performance of Cu2O photocathodes for unassisted solar water splitting devices

Jinhyun Kim, Ulf Anders Hagfeldt, Jingshan Luo, Matthew Thomas Mayer, Amita Ummadisingu, Linfeng Pan, Minkyu Son

Although large research efforts have been devoted to photoelectrochemical (PEC) water splitting in the past several decades, the lack of efficient, stable and Earth-abundant photoelectrodes remains a bottleneck for practical application. Here, we report a ...

2018

Multilayer 3D electrodes for neural implants

Diego Ghezzi, Marta Jole Ildelfonsa Airaghi Leccardi, Paola Vagni

Objective. In many applications, multielectrode arrays employed as neural implants require a high density and a high number of electrodes to precisely record and stimulate the activity of the nervous system while preserving the overall size of the array as ...

2018

An ultra-fast mechanically active cell culture substrate

Herbert Shea, Cristina Martin Olmos, Matthias Imboden, Samuel Rosset, Alexandre Poulin, Francesca Sorba

We present a mechanically active cell culture substrate that produces complex strain patterns and generates extremely high strain rates. The transparent miniaturized cell stretcher is compatible with live cell microscopy and provides a very compact and por ...

2018

Capillary flow device for bio-fluid collection with semiconductor sensors

Mihai Adrian Ionescu, Hoël Maxime Guérin, Francesco Bellando

An on-body wearable bio-fluid collection and sensing device including an interface or interface surface comprising at least one biocompatible material for contacting a bodily part; at least one inlet for receiving the bio-fluid, at least one outlet for eva ...

2018

Performance of Carbon Nano-Scale Allotropes in Detecting Midazolam and Paracetamol in Undiluted Human Serum

Giovanni De Micheli, Sandro Carrara, Francesca Stradolini, Irene Taurino, Ioulia Tzouvadaki, Nima Aliakbarinodehi, Sattar Akbari Nakhjavani

Nano-materials are highly exploited to enhance sensing performance of electrochemical electrodes by increasing the Electro-Active Surface Area (EASA). In this work, an analytical calculation of the deposited EASA is presented and experimentally validated b ...

2018

SECM study of hydrogen photogeneration in a 1,2-dichloroethane | water biphasic system with decamethylruthenocene electron donor regeneration

Hubert Girault

This paper reports light driven hydrogen evolution reaction (HER) at 1,2-dichloroethane | water (DCE | W) interface using photoexcited decamethylruthenocene (DMRc) as electron donor. DMRc is in situ regenerated by electroreduction of its oxidized form (DMR ...

2018

Patchy Surfaces

Nikolaos Nianias

Tailoring solid surfaces attracts a number of technological and scientific interest with numerous applications. One method to modify a solid surface is via the formation of a molecular film. The adsorbed molecules assemble spontaneously (self assemble) for ...

EPFL2018

How the formation of interfacial charge causes hysteresis in perovskite solar cells

Michael Graetzel, Wolfgang Richard Tress, Ulf Anders Hagfeldt, Silver Hamill Turren Cruz

In this study, we discuss the underlying mechanism of the current-voltage hysteresis in a hybrid lead-halide perovskite solar cell. We have developed a method based on Kelvin probe force microscopy that enables mapping charge redistribution in an operating ...

ROYAL SOC CHEMISTRY2018

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