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Pressure-Induced Enlargement and Ionic Current Rectification in Symmetric Nanopores

Related publications (109)

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New lives for old reverse osmosis (RO) membranes

The overall objective of the present work was to estimate by membrane autopsy the level of performances degradation of old reverse osmosis (RO) membranes/modules in order to envisage their reuse A mechanistic approach using the Spiegler-Kedem-Karchalsky mo ...

2010

Voltage tuning of the resonance frequency of electroactive polymer membranes over a range of 75%

Herbert Shea, Samuel Rosset, Muhamed Niklaus

We report on a novel technique to control the resonance frequency of polymer membranes, without additional external actuators. An electrostatic force is used to apply compressive stress to a dielectric electroactive polymers membrane, consisting of a 25 mi ...

2009

Modeling of batch and semi-batch membrane filtration processes

A mathematical frame for modeling batch and semi-batch membrane filtration processes is provided. The approach followed in this work uses the feed concentrations as a basis for the calculations, rather than the concentration factor. A practical computation ...

2009

Fluid-structure partitioned procedures based on Robin transmission conditions

Fabio Nobile, Christian Vergara

In this article we design new partitioned procedures for fluid-structure interaction problems, based on Robin-type transmission conditions. The choice of the coefficient in the Robin conditions is justified via simplified models. The strategy is effective ...

Elsevier2008

Superwetting nanowire membranes for selective absorption

Francesco Stellacci

The construction of nanoporous membranes is of great technological importance for various applications, including catalyst supports, filters for biomolecule purification, environmental remediation and seawater desalination(1-3). A major challenge is the sc ...

2008

Numerical simulation and optimization of multi-step batch membrane processes

A simple numerical technique is presented for batch membrane filtration design. The underlying model accounts for variable solute rejection coefficients, and it has a modular structure which permits to easily describe the batch process involving different ...

2008

Sol-gel processes applied to micro- and nanotechnology

Jean-Baptiste Robert Orhan

In this thesis, we intend to develop the sol-gel technology (a chemical way to make glass) from the traditional "raw" materials side to a novel technology allowing realization of innovative products in the field of micro- and nanotechnology. We first prese ...

EPFL2008

Fabrication of low temperature co-fired ceramic (LTCC)-based sensor and micro-fluidic structures

Hansu Birol

Low temperature co-fired ceramic (LTCC) technology has attracted remarkable attention in fabrication of sensors and micro-fluidic devices in the last decade. Although structuring planar LTCC foils, which are processed and screen-printed with thick-films, s ...

EPFL2007

Models for piezoelectric sensor-actuator systems

Robert Dunsch

The miniaturization trend in industry requires micro devices for handling and sensing in a micro environment. As the size of the handled objects decreases and their fragility increases, the demand for sensors with higher force sensitivity and resolution gr ...

EPFL2007

LTCC ultra high isostatic pressure sensors

Peter Ryser, Thomas Maeder, Yannick Sébastien Fournier, Niklaus Johner, Bamdad Afra

Piezoresistive pressure sensors using classical deformable structures such as membranes progressively run into difficulties at very high pressures (above 1 to 2 kbar), due to the decreasing ratio between the available sensing strain on the outer membrane s ...

2007