Remarkable increase in electrochemiluminescence of isomeric bipyridine-based covalent organic frameworks via regulating the direction of imine linkage for sensing application.
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| Title: | Remarkable increase in electrochemiluminescence of isomeric bipyridine-based covalent organic frameworks via regulating the direction of imine linkage for sensing application. |
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| Authors: | Cao, Xueting1 (AUTHOR), Song, Linlin1 (AUTHOR), Yang, Yuncong1 (AUTHOR), Chu, Wenqi1 (AUTHOR), Zou, Xiaoran1 (AUTHOR), Sun, Bing1,2 (AUTHOR) sunbing@cugb.edu.cn, Yin, Huanshun1,3 (AUTHOR) yinhs@sdau.edu.cn, Cui, Lin1 (AUTHOR) cuilin@sdnu.edu.cn |
| Source: | Journal of Colloid & Interface Science. Apr2025:Part 1, Vol. 684, p262-271. 10p. |
| Subjects: | Intramolecular charge transfer, Frontier orbitals, Electrochemiluminescence, Organic bases, Doxorubicin |
| Abstract: | [Display omitted] Covalent organic frameworks (COFs) with highly ordered structures and predictable optoelectronic properties provide an ideal platform to investigate the electrochemiluminescence (ECL) performance based on organic materials by atomically varying the molecular construction. Herein, the effect of imine-bond orientation on the ECL performance of COFs is investigated. We report two COFs (NC-COF Py-Bpy and CN-COF Py-Bpy) with different orientations of imine bonds using pyrene donor units (D) and bipyridine acceptor motifs (A) monomers. The direction of the imine linkage (carbon of imine bonds as the D unit and nitrogen as the A unit) in NC-COF Py-Bpy oppose to the direction of donor and acceptor charge transfer between the molecular motifs. In contrast, CN-COF Py-Bpy is in the same direction (D-A type imine COFs). However, the NC-COF Py-Bpy demonstrates a superior ECL performance with 22.4-fold enhancement in ECL intensity compared to CN-COF Py-Bpy , due to the effective separation of the highest and lowest occupied molecular orbitals to facilitate intramolecular charge transfer (IRCT) for strong ECL. Moreover, the ECL intensity of NC-COF Py-Bpy remains higher stability than CN-COF Py-Bpy at low-excited positive potential with tri- n -propylamine (TPrA) as the coreactant. The experimental and modeling investigation indicate that the bimodal ECL patterns of NC-COF Py-Bpy were derived from the competitive oxidation mechanism of IRCT regulated: the co-reactant-mediated oxidation at lower potential and the direct oxidation at higher potential, but the CN-COF Py-Bpy only has a co-reactant pathway. Notably, the NC-COF Py-Bpy can be used to construct an ECL sensor for sensitive detection of doxorubicin (DOX). This research provides a protocol for the molecular design of COFs as ECL emitters with atomically regulated charge transfer direction in D-A systems. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Colloid & Interface Science is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 182480973 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Remarkable increase in electrochemiluminescence of isomeric bipyridine-based covalent organic frameworks via regulating the direction of imine linkage for sensing application. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Cao%2C+Xueting%22">Cao, Xueting</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Linlin%22">Song, Linlin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Yuncong%22">Yang, Yuncong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chu%2C+Wenqi%22">Chu, Wenqi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zou%2C+Xiaoran%22">Zou, Xiaoran</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Bing%22">Sun, Bing</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> sunbing@cugb.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Yin%2C+Huanshun%22">Yin, Huanshun</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> yinhs@sdau.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Cui%2C+Lin%22">Cui, Lin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cuilin@sdnu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Colloid+%26+Interface+Science%22">Journal of Colloid & Interface Science</searchLink>. Apr2025:Part 1, Vol. 684, p262-271. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Intramolecular+charge+transfer%22">Intramolecular charge transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Frontier+orbitals%22">Frontier orbitals</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemiluminescence%22">Electrochemiluminescence</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+bases%22">Organic bases</searchLink><br /><searchLink fieldCode="DE" term="%22Doxorubicin%22">Doxorubicin</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: [Display omitted] Covalent organic frameworks (COFs) with highly ordered structures and predictable optoelectronic properties provide an ideal platform to investigate the electrochemiluminescence (ECL) performance based on organic materials by atomically varying the molecular construction. Herein, the effect of imine-bond orientation on the ECL performance of COFs is investigated. We report two COFs (NC-COF Py-Bpy and CN-COF Py-Bpy) with different orientations of imine bonds using pyrene donor units (D) and bipyridine acceptor motifs (A) monomers. The direction of the imine linkage (carbon of imine bonds as the D unit and nitrogen as the A unit) in NC-COF Py-Bpy oppose to the direction of donor and acceptor charge transfer between the molecular motifs. In contrast, CN-COF Py-Bpy is in the same direction (D-A type imine COFs). However, the NC-COF Py-Bpy demonstrates a superior ECL performance with 22.4-fold enhancement in ECL intensity compared to CN-COF Py-Bpy , due to the effective separation of the highest and lowest occupied molecular orbitals to facilitate intramolecular charge transfer (IRCT) for strong ECL. Moreover, the ECL intensity of NC-COF Py-Bpy remains higher stability than CN-COF Py-Bpy at low-excited positive potential with tri- n -propylamine (TPrA) as the coreactant. The experimental and modeling investigation indicate that the bimodal ECL patterns of NC-COF Py-Bpy were derived from the competitive oxidation mechanism of IRCT regulated: the co-reactant-mediated oxidation at lower potential and the direct oxidation at higher potential, but the CN-COF Py-Bpy only has a co-reactant pathway. Notably, the NC-COF Py-Bpy can be used to construct an ECL sensor for sensitive detection of doxorubicin (DOX). This research provides a protocol for the molecular design of COFs as ECL emitters with atomically regulated charge transfer direction in D-A systems. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Colloid & Interface Science is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jcis.2025.01.014 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 262 Subjects: – SubjectFull: Intramolecular charge transfer Type: general – SubjectFull: Frontier orbitals Type: general – SubjectFull: Electrochemiluminescence Type: general – SubjectFull: Organic bases Type: general – SubjectFull: Doxorubicin Type: general Titles: – TitleFull: Remarkable increase in electrochemiluminescence of isomeric bipyridine-based covalent organic frameworks via regulating the direction of imine linkage for sensing application. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Cao, Xueting – PersonEntity: Name: NameFull: Song, Linlin – PersonEntity: Name: NameFull: Yang, Yuncong – PersonEntity: Name: NameFull: Chu, Wenqi – PersonEntity: Name: NameFull: Zou, Xiaoran – PersonEntity: Name: NameFull: Sun, Bing – PersonEntity: Name: NameFull: Yin, Huanshun – PersonEntity: Name: NameFull: Cui, Lin IsPartOfRelationships: – BibEntity: Dates: – D: 20 M: 04 Text: Apr2025:Part 1 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00219797 Numbering: – Type: volume Value: 684 Titles: – TitleFull: Journal of Colloid & Interface Science Type: main |
| ResultId | 1 |
