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College of Liberal Arts & Sciences Neuroscience Program

Phase-sensitive detection of anomalous diffusion dynamics in the neuronal membrane induced by ion channel gating

Abstract

Non-ergodicity of neuronal dynamics from rapid ion channel gating through the membrane induces membrane displacement statistics that deviate from Brownian motion. The membrane dynamics from ion channel gating were imaged by phase-sensitive optical coherence microscopy. The distribution of optical displacements of the neuronal membrane showed a Lévy-like distribution and the memory effect of the membrane dynamics by the ionic gating was estimated. The alternation of the correlation time was observed when neurons were exposed to channel-blocking molecules. Non-invasive optophysiology by detecting the anomalous diffusion characteristics of dynamic images is demonstrated.

DOI: 10.1088/1361-6560/acbf9c

 

 

College of Liberal Arts & Sciences Neuroscience Program

2355/57 Beckman Institute

405 North Mathews Avenue

Urbana, IL 61801

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