Abstract
This paper presents the simulation results of a novel technique to stimulate the brain using a carbon nanotubes (CNT) based optically activated stimulator. This technique could be a promising alternative solution to overcome the limitations occurring in the conventional electrical stimulation of the brain and the newly developed opto-genetic stimulation. In this technique, the CNT stimulator, which generated an electrical current when exposed to light, was implanted in the brain. This current stimulated the nearby neurons to generate an action potential. The simulation results illustrated that a single-wall carbon nanotube of 50 nm2 size could stimulate a 40 μm2 area of the brain, whereas a multiwall carbon nanotube could cover a 12 μm2 area of the brain. Additionally, simulations were also performed to determine the optimal shape and appropriate coating material for commercial optical stimulators to maximize the stimulation efficacy in the brain.
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Acknowledgments
This work was supported by Grand no. 10031779 from the Strategic Technology Development Program of Ministry of Knowledge Economy. Also, this work was supported by the Grant of the Korean Ministry of Education, Science and Technology (The Regional Core Research Program/Anti-aging and Well-being Research Center). This work was supported by the Brain Korea 21 Project. This work was also supported by grant of the Oriental Medicine R&D Project, Ministry of Health, Welfare and Family Affairs, Republic of Korea (B080033), the Korean Science and Engineering Foundation (R01-2007-000-2056-0), the Korean Research Foundation, Next generation leading tech. grant (Daegu, EQMed).
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Mohy-Ud-Din, Z., Woo, S.H., Kim, J.H. et al. Optoelectronic Stimulation of the Brain Using Carbon Nanotubes. Ann Biomed Eng 38, 3500–3508 (2010). https://doi.org/10.1007/s10439-010-0091-6
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DOI: https://doi.org/10.1007/s10439-010-0091-6