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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Luchinsky, Dmitry
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Publications (9/9 displayed)
- 2020Welding dynamics in an atomistic model of an amorphous polymer blend with polymer-polymer interfacecitations
- 2014Modeling wave propagation in sandwich composite plates for structural health monitoring
- 2013Self-organized enhancement of conductivity in biological ion channelscitations
- 2013Modeling wave propagation and scattering from impact damage for structural health monitoring of composite sandwich platescitations
- 2013Stochastic dynamics of remote knock-on permeation in biological ion channelscitations
- 2011High-fidelity modeling for health monitoring in honeycomb sandwich structurescitations
- 2011Comparisons of SHM sensor models with empirical test data for sandwich composite structures
- 2011Wave propagation and scattering in sandwich composite panels
- 2010Theoretical background and prognostic modeling for benchmarking SHM sensors for composite structures
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document
Stochastic dynamics of remote knock-on permeation in biological ion channels
Abstract
Brownian dynamics simulations provide evidence for a remote knock-on mechanism facilitating the permeation of a biological ion channel by an ion that is initially trapped at the selectivity filter (SF). Unlike the case of conventional direct knock-on, the second ion that instigates permeation does not need to enter the channel. Nor does it necessarily take the place of the permeating ion at the SF, and it can even be of a different ionic species. The study is based on the simultaneous, self-consistent, solution of the coupled Poisson and Langevin equations for a simple generic model, taking account of all the charges present. The new permeation mechanism involves electrostatic amplification attributable to the permittivity mismatch between water and protein: the arrival of the instigating ion at the channel entrance reduces the exit barrier for the ion trapped at the SF, facilitating escape.