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Photosensitive ion channels in layered MXene membranes modified with plasmonic gold nanostars and cellulose nanofibers

Ion channels transduce external stimuli into ion-transport-mediated signaling, which has received considerable attention in diverse fields such as sensors, energy harvesting devices, and desalination membrane. In this work, we present a photosensitive ion channel based on plasmonic gold nanostars (A...

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Autores principales: Yeom, Jeonghee, Choe, Ayoung, Lee, Jiyun, Kim, Jeeyoon, Kim, Jinyoung, Oh, Seung Hak, Park, Cheolhong, Na, Sangyun, Shin, Young-Eun, Lee, Youngoh, Ro, Yun Goo, Kwak, Sang Kyu, Ko, Hyunhyub
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9870870/
https://www.ncbi.nlm.nih.gov/pubmed/36690639
http://dx.doi.org/10.1038/s41467-023-36039-5
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author Yeom, Jeonghee
Choe, Ayoung
Lee, Jiyun
Kim, Jeeyoon
Kim, Jinyoung
Oh, Seung Hak
Park, Cheolhong
Na, Sangyun
Shin, Young-Eun
Lee, Youngoh
Ro, Yun Goo
Kwak, Sang Kyu
Ko, Hyunhyub
author_facet Yeom, Jeonghee
Choe, Ayoung
Lee, Jiyun
Kim, Jeeyoon
Kim, Jinyoung
Oh, Seung Hak
Park, Cheolhong
Na, Sangyun
Shin, Young-Eun
Lee, Youngoh
Ro, Yun Goo
Kwak, Sang Kyu
Ko, Hyunhyub
author_sort Yeom, Jeonghee
collection PubMed
description Ion channels transduce external stimuli into ion-transport-mediated signaling, which has received considerable attention in diverse fields such as sensors, energy harvesting devices, and desalination membrane. In this work, we present a photosensitive ion channel based on plasmonic gold nanostars (AuNSs) and cellulose nanofibers (CNFs) embedded in layered MXene nanosheets. The MXene/AuNS/CNF (MAC) membrane provides subnanometer-sized ionic pathways for light-sensitive cationic flow. When the MAC nanochannel is exposed to NIR light, a photothermal gradient is formed, which induces directional photothermo-osmotic flow of nanoconfined electrolyte against the thermal gradient and produces a net ionic current. MAC membrane exhibits enhanced photothermal current compared with pristine MXene, which is attributed to the combined photothermal effects of plasmonic AuNSs and MXene and the widened interspacing of the MAC composite via the hydrophilic nanofibrils. The MAC composite membranes are envisioned to be applied in flexible ionic channels with ionogels and light-controlled ionic circuits.
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spelling pubmed-98708702023-01-25 Photosensitive ion channels in layered MXene membranes modified with plasmonic gold nanostars and cellulose nanofibers Yeom, Jeonghee Choe, Ayoung Lee, Jiyun Kim, Jeeyoon Kim, Jinyoung Oh, Seung Hak Park, Cheolhong Na, Sangyun Shin, Young-Eun Lee, Youngoh Ro, Yun Goo Kwak, Sang Kyu Ko, Hyunhyub Nat Commun Article Ion channels transduce external stimuli into ion-transport-mediated signaling, which has received considerable attention in diverse fields such as sensors, energy harvesting devices, and desalination membrane. In this work, we present a photosensitive ion channel based on plasmonic gold nanostars (AuNSs) and cellulose nanofibers (CNFs) embedded in layered MXene nanosheets. The MXene/AuNS/CNF (MAC) membrane provides subnanometer-sized ionic pathways for light-sensitive cationic flow. When the MAC nanochannel is exposed to NIR light, a photothermal gradient is formed, which induces directional photothermo-osmotic flow of nanoconfined electrolyte against the thermal gradient and produces a net ionic current. MAC membrane exhibits enhanced photothermal current compared with pristine MXene, which is attributed to the combined photothermal effects of plasmonic AuNSs and MXene and the widened interspacing of the MAC composite via the hydrophilic nanofibrils. The MAC composite membranes are envisioned to be applied in flexible ionic channels with ionogels and light-controlled ionic circuits. Nature Publishing Group UK 2023-01-23 /pmc/articles/PMC9870870/ /pubmed/36690639 http://dx.doi.org/10.1038/s41467-023-36039-5 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Yeom, Jeonghee
Choe, Ayoung
Lee, Jiyun
Kim, Jeeyoon
Kim, Jinyoung
Oh, Seung Hak
Park, Cheolhong
Na, Sangyun
Shin, Young-Eun
Lee, Youngoh
Ro, Yun Goo
Kwak, Sang Kyu
Ko, Hyunhyub
Photosensitive ion channels in layered MXene membranes modified with plasmonic gold nanostars and cellulose nanofibers
title Photosensitive ion channels in layered MXene membranes modified with plasmonic gold nanostars and cellulose nanofibers
title_full Photosensitive ion channels in layered MXene membranes modified with plasmonic gold nanostars and cellulose nanofibers
title_fullStr Photosensitive ion channels in layered MXene membranes modified with plasmonic gold nanostars and cellulose nanofibers
title_full_unstemmed Photosensitive ion channels in layered MXene membranes modified with plasmonic gold nanostars and cellulose nanofibers
title_short Photosensitive ion channels in layered MXene membranes modified with plasmonic gold nanostars and cellulose nanofibers
title_sort photosensitive ion channels in layered mxene membranes modified with plasmonic gold nanostars and cellulose nanofibers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9870870/
https://www.ncbi.nlm.nih.gov/pubmed/36690639
http://dx.doi.org/10.1038/s41467-023-36039-5
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