Stomata-Inspired Photomechanical Ion Nanochannels Modified by Azobenzene Composites
DC Field | Value | Language |
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dc.contributor.author | Chun, Kyoung-Yong | - |
dc.contributor.author | Son, Young Jun | - |
dc.contributor.author | Jo, Sunghwan | - |
dc.contributor.author | Han, Chang-Soo | - |
dc.date.accessioned | 2021-09-02T12:35:20Z | - |
dc.date.available | 2021-09-02T12:35:20Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-04-26 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/76091 | - |
dc.description.abstract | A low-powered and highly selective photomechanical sensor system mimicking stomata in the epidermis of leaves harvested from nature is demonstrated. This device uses a light-responsive composite consisting of 4-amino-1,1-azobenzene-3,4-disulfonic acid monosodium salt (AZO) and poly(diallyldimethylammonium chloride) (PDDA) coated on a membrane with tens of nanometer-size pores. The ionic current change through the pore channels as a function of pore size variation is then measured. The tran-cis isomerism of AZO-PDDA during light irradiation and the operation mechanism of photomechanical ion channel sensor are discussed and analyzed using UV-vis spectroscopy and atomic force microscopy analysis. It presents the discriminative current levels to the different light wavelengths. The response time of the photoreceptor is about 0.2 s and it consumes very low operating power (approximate to 15 nW) at 0.1 V bias. In addition, it is found that the change of the pore diameter during the light irradiation is due to the photomechanical effect, which is capable of distinguishing light intensity and wavelength. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | SIGNAL-TRANSDUCTION | - |
dc.subject | GUARD-CELLS | - |
dc.subject | PLANTS | - |
dc.subject | MEMBRANE | - |
dc.subject | MIMICKING | - |
dc.title | Stomata-Inspired Photomechanical Ion Nanochannels Modified by Azobenzene Composites | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Chun, Kyoung-Yong | - |
dc.contributor.affiliatedAuthor | Han, Chang-Soo | - |
dc.identifier.doi | 10.1002/smll.201703618 | - |
dc.identifier.scopusid | 2-s2.0-85044711195 | - |
dc.identifier.wosid | 000430922100007 | - |
dc.identifier.bibliographicCitation | SMALL, v.14, no.17 | - |
dc.relation.isPartOf | SMALL | - |
dc.citation.title | SMALL | - |
dc.citation.volume | 14 | - |
dc.citation.number | 17 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | SIGNAL-TRANSDUCTION | - |
dc.subject.keywordPlus | GUARD-CELLS | - |
dc.subject.keywordPlus | PLANTS | - |
dc.subject.keywordPlus | MEMBRANE | - |
dc.subject.keywordPlus | MIMICKING | - |
dc.subject.keywordAuthor | azobenzene | - |
dc.subject.keywordAuthor | ion channels | - |
dc.subject.keywordAuthor | photomechanical sensors | - |
dc.subject.keywordAuthor | pore actuation | - |
dc.subject.keywordAuthor | stomata | - |
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