Remotely Controlled Proton Generation for Neuromodulation

Copyright © 2020 American Chemical Society. Understanding and modulating proton-mediated biochemical processes in living organisms have been impeded by the lack of tools to control local pH. Here, we design nanotransducers capable of converting noninvasive alternating magnetic fields (AMFs) into pro...

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Main Authors: Park, Jimin, Tabet, Anthony, Moon, Junsang, Chiang, Po-Han, Koehler, Florian, Sahasrabudhe, Atharva, Anikeeva, Polina
Other Authors: Massachusetts Institute of Technology. Department of Materials Science and Engineering
Format: Article
Language:English
Published: American Chemical Society (ACS) 2022
Online Access:https://hdl.handle.net/1721.1/142480
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author Park, Jimin
Tabet, Anthony
Moon, Junsang
Chiang, Po-Han
Koehler, Florian
Sahasrabudhe, Atharva
Anikeeva, Polina
author2 Massachusetts Institute of Technology. Department of Materials Science and Engineering
author_facet Massachusetts Institute of Technology. Department of Materials Science and Engineering
Park, Jimin
Tabet, Anthony
Moon, Junsang
Chiang, Po-Han
Koehler, Florian
Sahasrabudhe, Atharva
Anikeeva, Polina
author_sort Park, Jimin
collection MIT
description Copyright © 2020 American Chemical Society. Understanding and modulating proton-mediated biochemical processes in living organisms have been impeded by the lack of tools to control local pH. Here, we design nanotransducers capable of converting noninvasive alternating magnetic fields (AMFs) into protons in physiological environments by combining magnetic nanoparticles (MNPs) with polymeric scaffolds. When exposed to AMFs, the heat dissipated by MNPs triggered a hydrolytic degradation of surrounding polyanhydride or polyester, releasing protons into the extracellular space. pH changes induced by these nanotransducers can be tuned by changing the polymer chemistry or AMF stimulation parameters. Remote magnetic control of local protons was shown to trigger acid-sensing ion channels and to evoke intracellular calcium influx in neurons. By offering a wireless modulation of local pH, our approach can accelerate the mechanistic investigation of the role of protons in biochemical signaling in the nervous system.
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spelling mit-1721.1/1424802023-02-09T17:51:56Z Remotely Controlled Proton Generation for Neuromodulation Park, Jimin Tabet, Anthony Moon, Junsang Chiang, Po-Han Koehler, Florian Sahasrabudhe, Atharva Anikeeva, Polina Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Research Laboratory of Electronics McGovern Institute for Brain Research at MIT Massachusetts Institute of Technology. Department of Chemical Engineering Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences Copyright © 2020 American Chemical Society. Understanding and modulating proton-mediated biochemical processes in living organisms have been impeded by the lack of tools to control local pH. Here, we design nanotransducers capable of converting noninvasive alternating magnetic fields (AMFs) into protons in physiological environments by combining magnetic nanoparticles (MNPs) with polymeric scaffolds. When exposed to AMFs, the heat dissipated by MNPs triggered a hydrolytic degradation of surrounding polyanhydride or polyester, releasing protons into the extracellular space. pH changes induced by these nanotransducers can be tuned by changing the polymer chemistry or AMF stimulation parameters. Remote magnetic control of local protons was shown to trigger acid-sensing ion channels and to evoke intracellular calcium influx in neurons. By offering a wireless modulation of local pH, our approach can accelerate the mechanistic investigation of the role of protons in biochemical signaling in the nervous system. 2022-05-11T16:47:12Z 2022-05-11T16:47:12Z 2020 2022-05-11T16:43:56Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142480 Park, Jimin, Tabet, Anthony, Moon, Junsang, Chiang, Po-Han, Koehler, Florian et al. 2020. "Remotely Controlled Proton Generation for Neuromodulation." Nano Letters, 20 (9). en 10.1021/ACS.NANOLETT.0C02281 Nano Letters Attribution-NonCommercial-ShareAlike 4.0 International https://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf American Chemical Society (ACS) PMC
spellingShingle Park, Jimin
Tabet, Anthony
Moon, Junsang
Chiang, Po-Han
Koehler, Florian
Sahasrabudhe, Atharva
Anikeeva, Polina
Remotely Controlled Proton Generation for Neuromodulation
title Remotely Controlled Proton Generation for Neuromodulation
title_full Remotely Controlled Proton Generation for Neuromodulation
title_fullStr Remotely Controlled Proton Generation for Neuromodulation
title_full_unstemmed Remotely Controlled Proton Generation for Neuromodulation
title_short Remotely Controlled Proton Generation for Neuromodulation
title_sort remotely controlled proton generation for neuromodulation
url https://hdl.handle.net/1721.1/142480
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AT koehlerflorian remotelycontrolledprotongenerationforneuromodulation
AT sahasrabudheatharva remotelycontrolledprotongenerationforneuromodulation
AT anikeevapolina remotelycontrolledprotongenerationforneuromodulation