Feng J.J., Krishnamoorthy S., Sundaram S.
CFD Research Corporation, US
Keywords: deconvolution of AP, ion channel, multiscale model, simulation
Spurred by the growing confluence of nano and bio technologies, several novel micro/nano platforms (see for example, whole cell patch clamp devices [1]) are emerging for the high-throughput and/or high-fidelity study of the electrophysiological response of a single cell (or a few cells) to external excitation (potential, ion-induced depolarization or hormonal changes etc.). However, a significant challenge in interpreting the data from the instruments is the de-convolution of transport-related effects from pure electrophysiological phenomena, such as the gated responses. In response to this challenge, we have developed a novel multi-scale approach (Figure 1) in which, high-fidelity spatio-temporal models describing intra and extra cellular fluid motion and ion transport (e.g. representing calcium store dynamics) are coupled with an equivalent electric circuit network model describing ion-channel activation. In addition to a clear separation of the transport from the electrophysiology, and thereby more rigorous data analysis, the proposed model will also enable the knowledge-based design and development of novel patch-clamp experimental platforms.
Journal: TechConnect Briefs
Volume: 1, Technical Proceedings of the 2005 NSTI Nanotechnology Conference and Trade Show, Volume 1
Published: May 8, 2005
Pages: 548 - 551
Industry sectors: Advanced Materials & Manufacturing | Medical & Biotech
Topics: Biomaterials, Informatics, Modeling & Simulation
ISBN: 0-9767985-0-6