Controlled hidden Markov models for dynamically adapting patch clamp experiment to estimate Nernst potential of single-ion channels

TitleControlled hidden Markov models for dynamically adapting patch clamp experiment to estimate Nernst potential of single-ion channels
Publication TypeJournal Article
Year of Publication2006
AuthorsKrishnamurthy, V., and G. G. Yin
JournalNanoBioscience, IEEE Transactions on
Volume5
Pagination115 -125
Date Publishedjun.
ISSN1536-1241
KeywordsAdaptation, Algorithms, Artificial Intelligence, biionic single potassium ion channel, bioelectric potentials, Biological, biomembrane transport, computer simulation, controlled hidden Markov models, current voltage curve, dynamically adapting patch clamp experiment, electrochemical equilibrium, equilibrium potential, feedback, hidden Markov models, ion channels, K, kernel-based stochastic learning algorithm, learning (artificial intelligence), Markov Chains, Membrane Potentials, Models, Nernst potential, Patch-Clamp Techniques, Physiological, physiological models, potassium, Potassium Channels, single ion channels
Abstract

This paper presents novel kernel-based stochastic learning algorithms for controlling the kinetics of single-ion channels in a patch clamp experiment. The algorithms yield efficient estimates of the equilibrium (Nernst) potential of an ion channel. The equilibrium potential of an ion channel is the applied external potential difference required to maintain electrochemical equilibrium across the ion channel. The algorithm adaptively controls the exploration of the learning algorithm to achieve an optimal balance between exploration and exploitation. An important feature of the resulting algorithm is that it is guaranteed to minimize the experimental effort. We illustrate the efficiency of the algorithms for the experimentally determined current voltage curve of a bi-ionic single potassium ion channel.

URLhttp://dx.doi.org/10.1109/TNB.2006.875038
DOI10.1109/TNB.2006.875038

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