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Wechakorn K, Pitsanuwong C, Kanjanasirirat P, Pewkliang Y, Borwornpinyo S, Kongsaeree P. A Rhodamine-coumarin Triazole Conjugate as a Fluorescent Chemodosimeter for Cu(II) Detection and its Application in Live Cell Bioimaging. J Fluoresc 2023:10.1007/s10895-023-03460-4. [PMID: 37837510 DOI: 10.1007/s10895-023-03460-4] [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: 09/07/2023] [Accepted: 09/30/2023] [Indexed: 10/16/2023]
Abstract
A rhodamine-triazole fluorescent probe bearing a coumarin moiety RTC was synthesized using the Cu(I)-catalyzed click reaction. The rhodamine-triazole conjugate was highly selective to Cu2+ among other metal ions, including Ca2+, Co2+, Cu2+, Cd2+, Mg2+, Fe2+, Fe3+, Hg2+, Zn2+, Ni2+, Pd2+ and Pb2+ in physiological conditions. Upon the addition of Cu2+, the colorless RTC solution turned pink and exhibited a significant fluorescence emission centered at 578 nm. The binding of Cu2+ induced a hydrolysis reaction, leading to a release of the coumarin unit from the rhodamine probe, as confirmed by mass spectrometric data. From the fluorescence titration, the detection limit of RTC for Cu2+ was determined to be 21 nM (1.3 ppb). The sensor was responsive to Cu2+ in a wide pH range and successfully applied to monitor Cu2+ in HEK293T cells by confocal fluorescence imaging.
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Affiliation(s)
- Kanokorn Wechakorn
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology, Thanyaburi, Pathum Thani, 12110, Thailand.
- Advanced Photochemical and Electrochemical Materials Research Unit, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani, 12110, Thailand.
| | - Chariwat Pitsanuwong
- Faculty of Science and Technology, Suan Sunandha Rajabhat University, Bangkok, 10300, Thailand
| | - Phongthon Kanjanasirirat
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Yongyut Pewkliang
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Suparerk Borwornpinyo
- Excellent Center for Drug Discovery, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand
| | - Palangpon Kongsaeree
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.
- Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.
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Namikuchi EA, Gaspar RDL, Raimundo IM, Mazali IO. A fluorescent magnetic core-shell nanosensor for detection of copper ions in natural waters. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 300:122915. [PMID: 37269659 DOI: 10.1016/j.saa.2023.122915] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/14/2023] [Accepted: 05/24/2023] [Indexed: 06/05/2023]
Abstract
A nanosensor based on magnetic core-shell nanoparticles functionalized with rhodamine derivative, N-(3-carboxy)acryloyl rhodamine B hydrazide (RhBCARB), using (3-aminopropyl)triethoxysilane (APTES) as a linker, has been synthesized for detection of Cu(II) ions in water. The magnetic nanoparticle and the modified rhodamine were fully characterized, showing a strong orange emission sensitive to Cu(II) ions. The sensor shows a linear response from 10 to 90 µg L-1, detection limit of 3 µg L-1 and no interference of Ni(II), Co(II), Cd(II), Zn(II), Pb(II), Hg(II) and Fe(II) ions. The nanosensor performance is similar to those described in the literature, being a viable option for the determination of Cu(II) ions in natural waters. In addition, the magnetic sensor can be easily removed from the reaction medium with the aid of a magnet and its signal recovered in acidic solution, allowing its reuse in subsequent analysis.
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Affiliation(s)
- Eliane A Namikuchi
- Group for Instrumentation and Automation in Analytical Chemistry, Institute of Chemistry, PO Box 6154, University of Campinas - UNICAMP, 13083-970 Campinas, SP, Brazil
| | - Rafael D L Gaspar
- Group for Instrumentation and Automation in Analytical Chemistry, Institute of Chemistry, PO Box 6154, University of Campinas - UNICAMP, 13083-970 Campinas, SP, Brazil
| | - Ivo M Raimundo
- Group for Instrumentation and Automation in Analytical Chemistry, Institute of Chemistry, PO Box 6154, University of Campinas - UNICAMP, 13083-970 Campinas, SP, Brazil.
| | - Italo O Mazali
- Laboratory of Functional Materials, Institute of Chemistry, PO Box 6154, University of Campinas - UNICAMP, 13083-970 Campinas, SP, Brazil.
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Ai Y, Zhu Z, Ding H, Fan C, Liu G, Pu S. A dual-responsive fluorescent probe for detection of H2S and Cu2+ based on rhodamine-naphthalimide and cell imaging. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Zhong C, Qiu J, Liu M, Yuan Y, Zhu H, Gao Y. Rational design and bioimaging application of cholesterol conjugated fluorescence probe for Cu2+ detection. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113267] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Yoon JW, Chang MJ, Hong S, Lee MH. A fluorescent probe for copper and hypochlorite based on rhodamine hydrazide framework. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.08.071] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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