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Bioinspired Photo-Responsive Liquid Gating Membrane

Stomata in the plant leaves are channels for gas exchange between the plants and the atmosphere. The gas exchange rate can be regulated by adjusting the opening and closing of stoma under the external stimuli, which plays a vital role in plant survival. Under visible light irradiation, the stomata o...

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Autores principales: Zhang, Rongrong, Lei, Jinmei, Xu, Jiadai, Fu, Hexuan, Jing, Yuan, Chen, Baiyi, Hou, Xu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9036211/
https://www.ncbi.nlm.nih.gov/pubmed/35466264
http://dx.doi.org/10.3390/biomimetics7020047
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author Zhang, Rongrong
Lei, Jinmei
Xu, Jiadai
Fu, Hexuan
Jing, Yuan
Chen, Baiyi
Hou, Xu
author_facet Zhang, Rongrong
Lei, Jinmei
Xu, Jiadai
Fu, Hexuan
Jing, Yuan
Chen, Baiyi
Hou, Xu
author_sort Zhang, Rongrong
collection PubMed
description Stomata in the plant leaves are channels for gas exchange between the plants and the atmosphere. The gas exchange rate can be regulated by adjusting the opening and closing of stoma under the external stimuli, which plays a vital role in plant survival. Under visible light irradiation, the stomata open for gas exchange with the surroundings, while under intense UV light irradiation, the stomata close to prevent the moisture loss of plants from excessive transpiration. Inspired by this stomatal self-protection behavior, we have constructed a bioinspired photo-responsive liquid gating membrane (BPRLGM) through infusing the photo-responsive gating liquid obtained by dissolving the azobenzene-based photo-responsive surfactant molecules (AzoC(8)F(15)) in N,N-Dimethylacetamide (DMAC) into nylon porous substrate, which can reversibly switch the open/closed states under different photo-stimuli. Theoretical analysis and experimental data have demonstrated that the reversible photoisomerization of azobenzene-based surfactant molecules induces a change in surface tension of the photo-responsive gating liquid, which eventually results in the reversible variation of substantial critical pressure for gas through BPRLGM under alternating UV (P(Critical) ((off))) and visible (P(Critical) ((on))) light irradiations. Therefore, driven by a pressure difference ΔP between P(Critical) ((on)) and P(Critical) ((off)), the reversible switches on the open/closed states of this photo-responsive liquid gating membrane can be realized under photo-stimuli. This bioinspired membrane with switchable open/closed liquid gating performance under photo-stimuli has the opportunity to be used in the precise and contactless control of microfluidics.
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spelling pubmed-90362112022-04-26 Bioinspired Photo-Responsive Liquid Gating Membrane Zhang, Rongrong Lei, Jinmei Xu, Jiadai Fu, Hexuan Jing, Yuan Chen, Baiyi Hou, Xu Biomimetics (Basel) Communication Stomata in the plant leaves are channels for gas exchange between the plants and the atmosphere. The gas exchange rate can be regulated by adjusting the opening and closing of stoma under the external stimuli, which plays a vital role in plant survival. Under visible light irradiation, the stomata open for gas exchange with the surroundings, while under intense UV light irradiation, the stomata close to prevent the moisture loss of plants from excessive transpiration. Inspired by this stomatal self-protection behavior, we have constructed a bioinspired photo-responsive liquid gating membrane (BPRLGM) through infusing the photo-responsive gating liquid obtained by dissolving the azobenzene-based photo-responsive surfactant molecules (AzoC(8)F(15)) in N,N-Dimethylacetamide (DMAC) into nylon porous substrate, which can reversibly switch the open/closed states under different photo-stimuli. Theoretical analysis and experimental data have demonstrated that the reversible photoisomerization of azobenzene-based surfactant molecules induces a change in surface tension of the photo-responsive gating liquid, which eventually results in the reversible variation of substantial critical pressure for gas through BPRLGM under alternating UV (P(Critical) ((off))) and visible (P(Critical) ((on))) light irradiations. Therefore, driven by a pressure difference ΔP between P(Critical) ((on)) and P(Critical) ((off)), the reversible switches on the open/closed states of this photo-responsive liquid gating membrane can be realized under photo-stimuli. This bioinspired membrane with switchable open/closed liquid gating performance under photo-stimuli has the opportunity to be used in the precise and contactless control of microfluidics. MDPI 2022-04-18 /pmc/articles/PMC9036211/ /pubmed/35466264 http://dx.doi.org/10.3390/biomimetics7020047 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Communication
Zhang, Rongrong
Lei, Jinmei
Xu, Jiadai
Fu, Hexuan
Jing, Yuan
Chen, Baiyi
Hou, Xu
Bioinspired Photo-Responsive Liquid Gating Membrane
title Bioinspired Photo-Responsive Liquid Gating Membrane
title_full Bioinspired Photo-Responsive Liquid Gating Membrane
title_fullStr Bioinspired Photo-Responsive Liquid Gating Membrane
title_full_unstemmed Bioinspired Photo-Responsive Liquid Gating Membrane
title_short Bioinspired Photo-Responsive Liquid Gating Membrane
title_sort bioinspired photo-responsive liquid gating membrane
topic Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9036211/
https://www.ncbi.nlm.nih.gov/pubmed/35466264
http://dx.doi.org/10.3390/biomimetics7020047
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