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Guo H, Liu S, Liu X, Zhang L. Lightening flavin by amination for fluorescent sensing. Phys Chem Chem Phys 2024; 26:19554-19563. [PMID: 38979978 DOI: 10.1039/d4cp01525h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Monitoring of reactive oxygen species (ROS), such as O2˙-, etc., in organisms is of great significance, not only for their essential role in biological processes, but their excessive production may also result in many diseases. Flavin (FL) is a fluorophore that naturally exists in flavoenzymes, and its fluorescent emission (FE) becomes negligible when reduced. This enables the application of FL derivatives as fluorescent sensors for ROS. We presented a theoretical investigation to address the impact of amino substitution on the photophysical properties of aminoflavins (AmFLs). Resulting from the interplay of electronic and positional effects, amination at C8 enhances the electronic coupling between the ground state and the first singlet excited state by enlarging the adiabatic energy change of the electronic transitions and the emission transition dipole moments, weakens the vibronic coupling by decreasing the contribution of isoalloxazine to the frontier molecular orbitals, redshifts the absorption band, and enhances the fluorescent emission drastically in 8AmFL. The theoretically estimated fluorescent emission intensity of 8AmFL is ∼40 times that of FL, suggesting its potential application as a fluorescent sensor.
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Affiliation(s)
- Huimin Guo
- School of Chemistry, Dalian University of Technology, No. 2, Linggong Road, Dalian, 116024, P. R. China.
| | - Siyu Liu
- School of Chemistry, Dalian University of Technology, No. 2, Linggong Road, Dalian, 116024, P. R. China.
| | - Xin Liu
- School of Chemistry, Dalian University of Technology, No. 2, Linggong Road, Dalian, 116024, P. R. China.
| | - Lijun Zhang
- Department of Ophthalmology, The Third People's Hospital of Dalian and Faculty of Medicine, Dalian University of Technology, No. 2, Linggong Road, Dalian, 116024, P. R. China
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Kawamorita S, Li Z, Okamoto K, Naota T. Multistimuli-Responsive Chromism of Vinylene-Linked Bisflavin Based on the Aggregation and Redox Properties. Chemistry 2023; 29:e202202257. [PMID: 36380653 DOI: 10.1002/chem.202202257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 11/11/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022]
Abstract
Multistimuli-responsive chromism was observed for vinylene-linked bisflavin 1 a with an extended π-conjugated platform. The yellow emission of a dilute solution of 1 a in CHCl3 (0.2 mM) observed at 298 K under UV excitation was changed to orange or red emission upon (1) an increase of concentration, (2) a decrease of temperature, and (3) variation of the solvent. This is in contrast to the almost non stimuli-responsive chromism of the N-methylated bisflavin analogue 1 b and monoflavin 2 a. Mechanistic investigation by 1 H NMR analysis under various conditions revealed that the extended π-conjugation platform and imide moiety of 1 a generate controllability in the formation of lower- and higher-ordered aggregates, which induce variation of the emission color upon change. Bisflavin 1 a also exhibited redox-induced chromism, where the orange emission of 1 a was quenched by the addition of hydrazine under anaerobic conditions, and changed back to the original emission upon subsequent bubbling of O2 gas.
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Affiliation(s)
- Soichiro Kawamorita
- Department of Chemistry, Graduate School of Engineering Science, Osaka University Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Zimeng Li
- Department of Chemistry, Graduate School of Engineering Science, Osaka University Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Koyo Okamoto
- Department of Chemistry, Graduate School of Engineering Science, Osaka University Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Takeshi Naota
- Department of Chemistry, Graduate School of Engineering Science, Osaka University Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
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Čubiňák M, Varma N, Oeser P, Pokluda A, Pavlovska T, Cibulka R, Sikorski M, Tobrman T. Tuning the Photophysical Properties of Flavins by Attaching an Aryl Moiety via Direct C-C Bond Coupling. J Org Chem 2023; 88:218-229. [PMID: 36525315 DOI: 10.1021/acs.joc.2c02168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Palladium-catalyzed Suzuki reactions of brominated flavin derivatives (5-deazaflavins, alloxazines, and isoalloxazines) with boronic acids or boronic acid esters that occur readily under mild conditions were shown to be an effective tool for the synthesis of a broad range of 7/8-arylflavins. In general, the introduction of an aryl/heteroaryl group by means of a direct C-C bond has been shown to be a promising approach to tuning the photophysical properties of flavin derivatives. The aryl substituents caused a bathochromic shift in the absorption spectra of up to 52 nm and prolonged the fluorescence lifetime by up to 1 order of magnitude. Moreover, arylation of flavin derivatives decreased their ability to generate singlet oxygen.
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Affiliation(s)
- Marek Čubiňák
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28Prague 6, Czech Republic
| | - Naisargi Varma
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614Poznań, Poland
| | - Petr Oeser
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28Prague 6, Czech Republic
| | - Adam Pokluda
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28Prague 6, Czech Republic
| | - Tetiana Pavlovska
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28Prague 6, Czech Republic
| | - Radek Cibulka
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28Prague 6, Czech Republic
| | - Marek Sikorski
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614Poznań, Poland
| | - Tomáš Tobrman
- Department of Organic Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28Prague 6, Czech Republic
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Liu J, Han S, Hu Y, Pao CW. Fabrication and characterization of a novel PMO containing riboflavin-5'-phosphate sodium salt for sensitive detection of pesticide ferbam. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yoshida A, Ikeshita M, Komiya N, Naota T. Solid-state fluorescence of zwitterionic imidazolium pyridinolates bearing long alkyl chains: Control of emission properties based on variation of lamellar alignment. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.08.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Komiya N, Yoshida A, Zhang D, Inoue R, Kawamorita S, Naota T. Fluorescent Crystals of Zwitterionic Imidazolium Pyridinolates: A Rational Design for Solid-State Emission Based on the Twisting Control of Proemissive N
-Aryl Imidazolium Platforms. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Naruyoshi Komiya
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Machikaneyama 560-8531 Toyonaka, Osaka Japan
- Chemistry Laboratory; The Jikei University School of Medicine; Kokuryo 182-8570 Chofu, Tokyo Japan
| | - Atsushi Yoshida
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Machikaneyama 560-8531 Toyonaka, Osaka Japan
| | - Di Zhang
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Machikaneyama 560-8531 Toyonaka, Osaka Japan
| | - Ryo Inoue
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Machikaneyama 560-8531 Toyonaka, Osaka Japan
| | - Soichiro Kawamorita
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Machikaneyama 560-8531 Toyonaka, Osaka Japan
| | - Takeshi Naota
- Department of Chemistry; Graduate School of Engineering Science; Osaka University; Machikaneyama 560-8531 Toyonaka, Osaka Japan
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