Publications related to Electrostatic induction

Electrostatic-Spray Ionization Mass Spectrometry

Hubert Girault, Natalia Gasilova, Liang Qiao, Yu Lu, Elena Tobolkina, Romain Sartor

An electrostatic-spray ionization (ESTASI) method has been used for mass spectrometry (MS) analysis of samples deposited in or on an insulating substrate. The ionization is induced by a capacitive coupling between an electrode and the sample. In practice, ...

Amer Chemical Soc2012

Dielectric Elastomer Actuators for Microfluidics

Herbert Shea, Samuel Rosset, Luc Maffli

One of the goals of microfluidics is to bring a whole laboratory processing chain on a few square centimeters, Lab-On-Chips (LOC). But current LOCs require many heavy and power-consuming off-chip controls like pneumatics, pumps and valves, which keep the s ...

2012

Can a Metal Surface Repel Electric Charges?

Primoz Rebernik Ribic

We show that the interaction between a surface and a charge packet moving parallel to it can become repulsive above a critical relativistic energy. We find that this is true for a lossless dielectric surface and also for a Drude metallic surface-in apparen ...

American Physical Society2012

Preparation of Translationally Cold Neutral Molecules

Andreas Osterwalder, Giulia Di Domenicantonio, Benjamin Bertsche

Efforts at EPFL to obtain translationally cold neutral molecules are described. Active deceleration of polar molecules is performed by confining the molecules in moving three-dimensional electrostatic traps, and by appropriately choosing the velocity of th ...

2011

Analysis and study of novel terpolymers composed of acrylamide, mono-charged and double-charged cationic monomers

Peter Käuper, Jutta Christine Wandrey, Ricardo Losada Mateo

The composition of novel terpolymers containing acrylamide (A), acryloyloxyethyltrimethylammonium chloride (Q), and bis-1,3(N,N,N-trimethylammonium)-2-propylmethacrylate dichloride (M) was analyzed combining FTIR and potentiometric titration. Calibration w ...

2009

Developing Improved Charge Sets for the Modeling of the KcsA K+ Channel Using QM/MM Electrostatic Potentials

Ursula Röthlisberger, Denis Bucher, Leonardo Guidoni

The performance of popular molecular mechanics (MM) force fields in treating problems that involve ion-channel interactions is explored. We have used quantum mechanical/molecular mechanical (QM/MM) calculations to compute the electrostatic potential inside ...

2009

Modeling the Adsorption and Coagulation of Fulvic Acids on Colloids by Brownian Dynamics Simulations

Marianne Seijo, Montserrat Filella, Serge Stoll

Humic substances (HS) play an important role in the reactivity and transport of colloids in natural environments. In particular, the presence of fulvic acids (FA) in natural waters modifies the interactions between inorg. particles and biopolymers and make ...

American Chemical Society2009

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

Copolymerization of a cationic double-charged monomer and electrochemical properties of the copolymers

Jutta Christine Wandrey, Ricardo Losada Mateo

The free radical copolymerization of 1,3-bis(N,N,N-trimethylammonium)-2-propylmethacrylate dichloride (di-M) with acryloyloxyethyltrimethylammonium chloride (Q), diallyldimethylammonium chloride (DADMAC), and acrylamide (A) yielded novel polyelectrolytes a ...

2009

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Electrostatic induction

Electrostatic-Spray Ionization Mass Spectrometry

Dielectric Elastomer Actuators for Microfluidics

Can a Metal Surface Repel Electric Charges?

Preparation of Translationally Cold Neutral Molecules

Analysis and study of novel terpolymers composed of acrylamide, mono-charged and double-charged cationic monomers

Developing Improved Charge Sets for the Modeling of the KcsA K+ Channel Using QM/MM Electrostatic Potentials

Modeling the Adsorption and Coagulation of Fulvic Acids on Colloids by Brownian Dynamics Simulations

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

Understanding, Controlling and Programming Cooperativity in Self-Assembled Polynuclear Complexes in Solution

Copolymerization of a cationic double-charged monomer and electrochemical properties of the copolymers

Graph Chatbot

Chat with Graph Search

Preparation of Translationally Cold Neutral Molecules

Can a Metal Surface Repel Electric Charges?

Analysis and study of novel terpolymers composed of acrylamide, mono-charged and double-charged cationic monomers

Developing Improved Charge Sets for the Modeling of the KcsA K+ Channel Using QM/MM Electrostatic Potentials

Dielectric Elastomer Actuators for Microfluidics

Electrostatic-Spray Ionization Mass Spectrometry

Understanding, Controlling and Programming Cooperativity in Self-Assembled Polynuclear Complexes in Solution

Modeling the Adsorption and Coagulation of Fulvic Acids on Colloids by Brownian Dynamics Simulations

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

Copolymerization of a cationic double-charged monomer and electrochemical properties of the copolymers