Concept

Gap junction

Related publications (102)

RIM determines Ca²+ channel density and vesicle docking at the presynaptic active zone

At presynaptic active zones, neurotransmitter release is initiated by the opening of voltage-gated Ca²+ channels close to docked vesicles. The mechanisms that enrich Ca²+ channels at active zones are, however, largely unknown, possibly because of the limit ...

Elsevier2011

Simulations to study spatial extent of stimulation and effect of electrode–tissue gap in subretinal implants

Philippe Renaud, Arnaud Bertsch, Sri Harsha Kasi Raj

We present a finite element based simulation and analysis method to describe the spatial extent of stimulation and the effects of electrode–tissue interactions in subretinal prostheses. In particular, we estimate the threshold stimulation current needed to ...

Elsevier2011

Tunneling magnetoresistance with sign inversion in junctions based on iron oxide nanocrystal superlattices

Raffaella Buonsanti

Magnetic tunnel junctions sandwiching a superlattice thin film of Fe oxide nanocrystals (NCs) were investigated. The transport was found to be controlled by Coulomb blockade and single-electron tunneling, already at room temp. A good correlation was identi ...

2011

Optimization of thin film silicon solar cells on highly textured substrates

Christophe Ballif, Corsin Battaglia, Matthieu Despeisse, Mathieu Gérard Boccard, Grégory Bugnon, Thomas Söderström, Gaetano Parascandolo, Peter Cuony, Simon Hänni, Mathieu Charrière, Nils Linus Löfgren

Doped layers made of nanostructured silicon phases embedded in a silicon oxide matrix were implemented in thin film silicon solar cells. Their combination with optimized deposition processes for the silicon intrinsic layers is shown to allow for an increas ...

2011

Emergent Dynamics in Neocortical Microcircuits

Rodrigo de Campos Perin

Interactions among neurons can take place in a wide variety of forms. It is the goal of this thesis to investigate the properties and implications of a number of these interactions that we believe are relevant for information processing in the brain. Neuro ...

EPFL2010

Intercellular coupling regulates the period of the segmentation clock

Andrew Charles Oates

Background: Coupled biological oscillators can tick with the same period. How this collective period is established is a key question in understanding biological clocks. We explore this question in the segmentation clock, a population of coupled cellular o ...

2010

Coordination of Myofibroblast Contraction in Vitro

Lysianne Follonier Castella

The aim of this thesis is to elucidate the common mechanisms that regulate myofibroblast contraction and intercellular communication, with a particular focus on the role of Ca2+ signalling. Synthesis and remodelling of collagenous matrix by myofibroblasts ...

EPFL2010

Intercellular calcium waves are associated with the propagation of vasomotion along arterial strips

Jean-Jacques Meister, Roger Sauser, Jean-Louis Bény, Michèle Koenigsberger, Dominique Seppey

Vasomotion consists of cyclic arterial diameter variations induced by synchronous contractions and relaxations of smooth muscle cells. However, the arteries do not contract simultaneously on macroscopic distances, and a propagation of the contraction can b ...

2010

Quantitative analysis of gene regulation in Drosophila

Antonina Iagovitina

In this project, characterization of the MAPK signaling cascade was done using the terminal patterning of Drosophila embryo as an experimental system. MAPK acts downstream of the Torso receptor tyrosine kinase (RTK) whose activation is limited to the poles ...

2010

A circuit-level substrate current model for smart-power ICs

Maher Kayal, Jean-Michel Sallese, François Krummenacher, Marc Pastre, Fabrizio Lo Conte

This paper presents a new modeling methodology accounting for generation and propagation of minority carriers that can be used directly in circuit-level simulators in order to estimate coupled parasitic currents. The method is based on a new compact model ...

Institute of Electrical and Electronics Engineers2010

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