1
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Wang J, Li R, Ouyang H, Lu Y, Fei H, Zhao Y. A nitroreductase-responsive fluorescence turn-on photosensitizer for lysosomes imaging and photodynamic therapy. Talanta 2024; 276:126277. [PMID: 38761658 DOI: 10.1016/j.talanta.2024.126277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/11/2024] [Accepted: 05/16/2024] [Indexed: 05/20/2024]
Abstract
Nitroreductase (NTR) is a frequently used biomarker for the assessment of hypoxia level in tumors. As one of the main sources of enzymes, the dysfunction of lysosomes typically leads to various diseases. In this study, an NTR-triggered lysosome-targeting probe, M-TPE-P, was designed based on a tetraphenylethylene core. DFT calculation indicated that the probe possessed a narrow singlet-triplet energy gap (ΔEST), rendering it an efficient photosensitizer. The docking affinity of M-TPE-P to NTR revealed a strong structural match between them. Photophysical properties demonstrated that the probe exhibited high selectivity and sensitivity in a broad pH rang for detecting NTR with kcat/Km as 2.18 × 104 M-1 s-1. The detection limit was determined to be 53.6 ng/mL in 80 % PBS/DMSO solution. Cell imaging studies showed the probe could trace intracellular NTR behavior with green fluorescence. The colocalization analysis indicated its excellent lysosome-targeting specificity. In addition, the probe exhibited effective ROS generation ability and significant PDT effect after NIR irradiation, positioning it as a promising photosensitizer for cancer treatment.
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Affiliation(s)
- Jinhui Wang
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, 315211, China.
| | - Ruxin Li
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, 315211, China
| | - Han Ouyang
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, 315211, China
| | - Yang Lu
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, 315211, China
| | - Haiyang Fei
- School of Pharmaceutical Engineering, Jiangsu Food and Pharmaceutical Science College, Huai'an, Jiangsu, 223003, China.
| | - Yufen Zhao
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, 315211, China
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2
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Zhang Y, Ranaei Pirmardan E, Barakat A, Hafezi-Moghadam A. Breath Biopsy Reveals Systemic Immunothrombosis and Its Resolution through Bioorthogonal Dendritic Nanoprobes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304903. [PMID: 37439390 DOI: 10.1002/adma.202304903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 06/22/2023] [Indexed: 07/14/2023]
Abstract
Immunothrombosis, an inflammation-dependent activation of the coagulation cascade, leads to microthrombi formations in small vessels. It is a dreaded complication of COVID-19 and a major cause of respiratory failure. Due to their size and disseminated nature, microthrombi are currently undetectable. Here, noninvasive detection of a volatile reporter in the exhaled air is introduced for assessment of systemic immunothrombosis. A dendritic nanoprobe, containing high loading of a thrombin-sensitive substrate, is selectively cleaved by thrombin, resulting in release of a synthetic bioorthogonal volatile organic compound (VOC). The VOC is quantitated in the exhaled air biopsies via gas chromatography-mass spectrometry (GC-MS), allowing near real-time assessment of systemic immunothrombosis. The VOC detection can be further improved with more rapid and sensitive MS-based technologies. The amount of the VOC in the exhaled air decreases with resolution of the microvascular inflammation and intravascular fibrin depositions. Through conjugation of the thrombin-sensitive peptide with a rhodol derivative, a novel thrombin-sensitive fluorescent nanoprobe is developed for intravital visualization of thrombin activity in actively growing thrombi. These results establish unprecedented detection of thrombin activity in vivo, addressing this unmet medical need. This novel approach facilitates diagnosis of immunothrombosis in diseases such as diabetic complications, disseminated intravascular coagulation, and COVID-19.
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Affiliation(s)
- Yuanlin Zhang
- Molecular Biomarkers Nano-Imaging Laboratory, Brigham and Women's Hospital and Department of Radiology, Harvard Medical School, 75 Francis St., Boston, MA, 02115, USA
| | - Ehsan Ranaei Pirmardan
- Molecular Biomarkers Nano-Imaging Laboratory, Brigham and Women's Hospital and Department of Radiology, Harvard Medical School, 75 Francis St., Boston, MA, 02115, USA
| | - Aliaa Barakat
- Molecular Biomarkers Nano-Imaging Laboratory, Brigham and Women's Hospital and Department of Radiology, Harvard Medical School, 75 Francis St., Boston, MA, 02115, USA
| | - Ali Hafezi-Moghadam
- Molecular Biomarkers Nano-Imaging Laboratory, Brigham and Women's Hospital and Department of Radiology, Harvard Medical School, 75 Francis St., Boston, MA, 02115, USA
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3
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Oxyethylated Fluoresceine-(thia)calix[4]arene Conjugates: Synthesis and Visible-Light Photoredox Catalysis in Water-Organic Media. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010261. [PMID: 36615457 PMCID: PMC9821991 DOI: 10.3390/molecules28010261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/21/2022] [Accepted: 12/24/2022] [Indexed: 12/30/2022]
Abstract
Fluorescent derivatives attract the attention of researchers for their use as sensors, photocatalysts and for the creation of functional materials. In order to create amphiphilic fluorescent derivatives of calixarenes, a fluorescein derivative containing oligoethylene glycol and propargyl groups was obtained. The resulting fluorescein derivative was introduced into three different (thia)calix[4]arene azide derivatives. For all synthesized compounds, the luminescence quantum yields have been established in different solvents. Using UV-visible spectroscopy, dynamic light scattering, as well as transmission and confocal microscopy, aggregation of macrocycles was studied. It was evaluated that calixarene derivatives with alkyl substituents form spherical aggregates, while symmetrical tetrafluorescein-containing thiacalix[4]arene forms extended worm-like aggregates. The macrocycle containing tetradecyl fragments was found to be the most efficient in photoredox ipso-oxidation of phenylboronic acid. In addition, it was shown that in a number of different electron donors (NEt3, DABCO and iPr2EtN), the photoredox ipso-oxidation proceeds best with triethylamine. It has been shown that a low molecular weight surfactant Triton-X100 can also improve the photocatalytic abilities of an oligoethylene glycol fluorescein derivative, thus showing the importance of a combination of micellar and photoredox catalysis.
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4
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A Ratiometric Selective Fluorescent Probe Derived from Pyrene for Cu2+ Detection. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10060207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
A novel ratiometric Cu2+-selective probe was rationally constructed based on pyrene derivative. Compared to other tested metal ions, the probe presented the selective recognition for Cu2+ which could be detected by a significant turn-on fluorescent response at 393 nm and 415 nm. Under the optimized conditions, a detection limit of 0.16 μM Cu2+ in aqueous media was found. Besides this, a 1:1 metal–ligand complex was confirmed by MS spectra and Job’s plot experiment, and the binding mode was also studied by 1H NMR experiment. Meanwhile, the fluorescence imaging in living cells was performed to detect Cu2+ with satisfactory results.
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5
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Soundarapandian S, Alexander A, Sumohan Pillai A, Manikandan V, Enoch IVMV, Yousuf S. Differential interaction of Fluorescein-β-cyclodextrin conjugate to quadruplex kit22 DNA: Inclusion of Berberine and modulation of binding. J Biomol Struct Dyn 2022; 41:3791-3799. [PMID: 35362364 DOI: 10.1080/07391102.2022.2056508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Clinical applicability of G-quadruplexes as anticancer drugs is an area of current interest. Identification of supramolecular systems for selective targeting G-quartets is particularly intriguing. In this work, the DNA binder Berberine is encapsulated inside the molecular cavity of the synthesised host structure, Fluoresecein-β-cyclodextrin conjugate. The host: guest complex is characterized and the mode of binding is optimized using two dimensional rotating-frame Overhauser effect spectroscopy. The conjugate is examined for its binding to quadruplex DNAs viz., kit22, myc22, telo24 and the duplex calf-thymus DNA before and after Berberine encapsulation. UV-vis and fluorescence spectroscopic methods were employed to determine the strength of binding of the complex with the DNAs. The binding strength and the stoichiometry of the host: guest complex are 1.9 × 106 mol-1 dm3 and 1:1, respectively. A quenching of fluorescence of the quadruplex kit22 and duplex ctDNA is observed on binding to the Fluorescein-β-cyclodextrin conjugate. The quadruplexes of myc22 and telo24 display an enhanced fluorescence on binding to the modified cyclodextrin. The Stern-Volmer quenching constants are 1.4 × 106 mol-1 dm3 and 3.8 × 105 mol-1 dm3 for binding to kit22 and ctDNA respectively. kit22 shows a different emission profile on interacting with the Berberine encapsulated conjugate, whereas all the other quadruplexes and duplex exhibit similar emission profiles. The results indicate a variation in the binding mode and strength of the ligand-quadruplexes and depend on the conformation of the quadruplexes.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Suganthi Soundarapandian
- Department of Chemistry, Karunya Institute of Technology and Sciences (Deemed-to-be University), Coimbatore, Tamil Nadu, India
| | - Aleyamma Alexander
- Centre for Nanoscience and Genomics, Karunya Institute of Technology and Sciences (Deemed-to-be University), Coimbatore, Tamil Nadu, India
| | - Archana Sumohan Pillai
- Centre for Nanoscience and Genomics, Karunya Institute of Technology and Sciences (Deemed-to-be University), Coimbatore, Tamil Nadu, India
| | - Varnitha Manikandan
- Centre for Nanoscience and Genomics, Karunya Institute of Technology and Sciences (Deemed-to-be University), Coimbatore, Tamil Nadu, India
| | - Israel V M V Enoch
- Centre for Nanoscience and Genomics, Karunya Institute of Technology and Sciences (Deemed-to-be University), Coimbatore, Tamil Nadu, India
| | - Sameena Yousuf
- Nehru Institute of Engineering and Technology, Coimbatore, Tamil Nadu, India
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Wickhorst PJ, Ihmels H, Lammert-Baumgartner MM, Müller M, Schönherr H. 9-Nitrobenzo[ b]quinolizinium as a fluorogenic probe for the detection of nitroreductase in vitro and in Escherichia coli. NEW J CHEM 2022. [DOI: 10.1039/d1nj05230f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The non-fluorescent 9-nitrobenzo[b]quinolizinium is readily reduced by nitroreductase to fluorescent reaction products whose formation depends on the reaction conditions.
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Affiliation(s)
- Peter Jonas Wickhorst
- Department of Chemistry – Biology, University of Siegen, Center of Micro- and Nanochemistry and (Bio-)Technology (Cμ), Adolf-Reichwein-Str. 2, Siegen 57068, Germany
| | - Heiko Ihmels
- Department of Chemistry – Biology, University of Siegen, Center of Micro- and Nanochemistry and (Bio-)Technology (Cμ), Adolf-Reichwein-Str. 2, Siegen 57068, Germany
| | - Melanie Marianne Lammert-Baumgartner
- Department of Chemistry – Biology, University of Siegen, Center of Micro- and Nanochemistry and (Bio-)Technology (Cμ), Adolf-Reichwein-Str. 2, Siegen 57068, Germany
| | - Mareike Müller
- Department of Chemistry – Biology, University of Siegen, Center of Micro- and Nanochemistry and (Bio-)Technology (Cμ), Adolf-Reichwein-Str. 2, Siegen 57068, Germany
| | - Holger Schönherr
- Department of Chemistry – Biology, University of Siegen, Center of Micro- and Nanochemistry and (Bio-)Technology (Cμ), Adolf-Reichwein-Str. 2, Siegen 57068, Germany
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7
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Kang J, Mun SK, Choi EJ, Kim JJ, Yee ST, Chang DJ. A preliminary study for the development of cleavable linkers using activatable fluorescent probes targeting leucine aminopeptidase. Analyst 2022; 147:5386-5394. [DOI: 10.1039/d2an01145j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The Kinetic and ex vivo stability studies of LAP-responsive fluorescent probes demonstrated that the stability and intrinsic drug releasing activity of the cleavalbe linker can be evaluated by a peptidase-responsive activatable fluorescent probe.
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Affiliation(s)
- Julie Kang
- College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, 255 Jungang-ro, Suncheon 57922, Korea
| | - Seul-Ki Mun
- College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, 255 Jungang-ro, Suncheon 57922, Korea
| | - Eu-Jin Choi
- Department of Biology, Sunchon National University, 255 Jungang-ro, Suncheon 57922, Korea
| | - Jong-Jin Kim
- Gwangju Center, Korea Basic Science Institute (KBSI), Gwangju 61186, Korea
| | - Sung-Tae Yee
- College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, 255 Jungang-ro, Suncheon 57922, Korea
| | - Dong-Jo Chang
- College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, 255 Jungang-ro, Suncheon 57922, Korea
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8
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Maia M, Resende DISP, Durães F, Pinto MMM, Sousa E. Xanthenes in Medicinal Chemistry - Synthetic strategies and biological activities. Eur J Med Chem 2020; 210:113085. [PMID: 33310284 DOI: 10.1016/j.ejmech.2020.113085] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/30/2020] [Accepted: 11/30/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Xanthenes are a special class of oxygen-incorporating tricyclic compounds. Structurally related to xanthones, the presence of different substituents in position 9 strongly influences their physical and chemical properties, as well as their biological applications. This review explores the synthetic methodologies developed to obtain 9H-xanthene, 9-hydroxyxanthene and xanthene-9-carboxylic acid, as well as respective derivatives, from simple starting materials or through modification of related structures. Azaxanthenes, bioisosteres of xanthenes, are also explored. Efficiency, safety, ecological impact and applicability of the described synthetic methodologies are discussed. Synthesis of multi-functionalized derivatives with drug-likeness properties are also reported and their activities explored. Synthetic methodologies for obtaining (aza)xanthenes from simple building blocks are available, and electrochemical and/or metal free procedures recently developed arise as greener and efficient methodologies. Nonetheless, the synthesis of xanthenes through the modification of the carbonyl in position 9 of xanthones represents the most straightforward procedure to easily obtain a variety of (aza)xanthenes. (Aza)xanthene derivatives displayed biological activity as neuroprotector, antitumor, antimicrobial, among others, proving the versatility of this nucleus for different biological applications. However, in some cases their chemical structures suggest a lack of pharmacokinetic properties being associated with safety concerns, which should be overcome if intended for clinical evaluation.
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Affiliation(s)
- Miguel Maia
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros Do Porto de Leixões, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade Do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Diana I S P Resende
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros Do Porto de Leixões, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade Do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Fernando Durães
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros Do Porto de Leixões, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade Do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Madalena M M Pinto
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros Do Porto de Leixões, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade Do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
| | - Emília Sousa
- CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros Do Porto de Leixões, 4450-208, Matosinhos, Portugal; Laboratório de Química Orgânica e Farmacêutica, Faculdade de Farmácia, Universidade Do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
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9
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Hien NK, Van Bay M, Tran PD, Khanh NT, Luyen ND, Vo QV, Van DU, Nam PC, Quang DT. A coumarin derivative-Cu 2+ complex-based fluorescent chemosensor for detection of biothiols. RSC Adv 2020; 10:36265-36274. [PMID: 35517943 PMCID: PMC9057049 DOI: 10.1039/d0ra05651k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/14/2020] [Indexed: 12/19/2022] Open
Abstract
Herein, a novel fluorescent sensor has been developed for the detection of biothiols based on theoretical calculations of the stability constant of the complex between a Cu2+ ion and (E)-3-((2-(benzo[d]thiazol-2-yl)hydrazono)methyl)-7-(diethylamino) coumarin (BDC) as a fluorescent ligand. In this study, on the basis of density functional theory method, the Gibbs free energy of ligand-exchange reaction and the solvation model were carried out using thermodynamic cycles. The obtained results are in good agreement with the experimental data. The BDC–Cu2+ complex can be used as a fluorescent sensor for the detection of biothiols in the presence of non-thiol containing amino acids, with a detection limit for cysteine at 0.3 μM. Moreover, theoretical calculations of excited states were used to elucidate variations in the fluorescence properties. The computed results show that the excited doublet states D2 and D1 are dark doublet states, which quench the fluorescence of the complex. This study opens a new research direction towards the utilization of complexes between metal ions and fluorescent ligands for the detection of biothiols based on the theoretical calculations of stability constants.![]()
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Affiliation(s)
- Nguyen Khoa Hien
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology Hue 530000 Vietnam
| | - Mai Van Bay
- University of Education, Hue University Hue 530000 Vietnam .,The University of Danang -University of Science and Education Danang 550000 Vietnam
| | - Phan Diem Tran
- Mientrung Institute for Scientific Research, Vietnam Academy of Science and Technology Hue 530000 Vietnam
| | - Nguyen Tan Khanh
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy Hue 530000 Vietnam
| | | | - Quan V Vo
- Faculty of Chemical Technology-Environment, The University of Danang-University of Technology and Education 48 Cao Thang Danang 550000 Vietnam
| | | | - Pham Cam Nam
- The University of Danang -University of Science and Technology Danang 550000 Vietnam
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10
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Recent progress in the design principles, sensing mechanisms, and applications of small-molecule probes for nitroreductases. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213460] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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11
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Hien N, Bay MV, Bao NC, Vo QV, Cuong ND, Thien TV, Nhung NTA, Van DU, Nam PC, Quang DT. Coumarin-Based Dual Chemosensor for Colorimetric and Fluorescent Detection of Cu 2+ in Water Media. ACS OMEGA 2020; 5:21241-21249. [PMID: 32875260 PMCID: PMC7450636 DOI: 10.1021/acsomega.0c03097] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 07/28/2020] [Indexed: 05/30/2023]
Abstract
A novel coumarin derivative (5) was synthesized and used as a colorimetric and fluorescent probe for selective detection of Cu2+ ions in the presence of other metal ions, with the detection limits of 5.7 and 4.0 ppb, respectively. Cu2+ ion reacts with probe 5 to form a 1:1 stoichiometry complex, resulting in a remarkable redshift of absorption maximum from 460 to 510 nm, as well as almost completely quenching fluorescence intensity of probe 5 at the wavelength of 536 nm. These changes can be distinctly observed by naked eyes. In addition, the working pH range of probe 5 is wide and suitable for physiological conditions, thus probe 5 may be used for detection of Cu2+ ions in living cells. The stable structures of probe 5 and its 1:1 complex with Cu2+ ion were optimized at the PBE0/6-31+G(d) level of theory. The presence and characteristics of bonds in compounds were studied through atoms in a molecule and natural bond orbital analysis. The formation of the complex led to a strong transfer of electron density from probe 5 as a ligand to Cu2+ ion, resulting in breaking the π-electron conjugated system, which is the cause of fluorescence quenching and color change of 5-Cu2+ complex.
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Affiliation(s)
- Nguyen
Khoa Hien
- Mientrung
Institute for Scientific Research, Vietnam
Academy of Science and Technology, Hue 530000, Vietnam
| | - Mai Van Bay
- University of Education,
Hue University, Hue 530000, Vietnam
- The
University of Danang-University of Science and Education, Danang 550000, Vietnam
| | | | - Quan V. Vo
- Faculty
of Chemical Technology-Environment, The
University of Danang-University of Technology and Education, 48 Cao Thang, Danang 550000, Vietnam
| | | | - Tran Vinh Thien
- Faculty
of Geology & Mineral Resources Engineering, Ho Chi Minh University of Natural Resources and Environment, Ho Chi Minh 700000, Vietnam
| | | | | | - Pham Cam Nam
- The
University of Danang-University of Science and Technology, Danang 550000, Vietnam
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12
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Wu LL, Wang Q, Wang Y, Zhang N, Zhang Q, Hu HY. Rapid differentiation between bacterial infections and cancer using a near-infrared fluorogenic probe. Chem Sci 2020; 11:3141-3145. [PMID: 34122818 PMCID: PMC8157330 DOI: 10.1039/d0sc00508h] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The reliable differentiation between bacterial infections and other pathologies is crucial for both diagnostics and therapeutic approaches. To accommodate such needs, we herein report the development of an activatable near-infrared fluorescent probe 1 that could be applied in the ultrafast, ultrasensitive and specific detection of nitroreductase (NTR) activity in bacterial pathogens both in vitro and in vivo. Upon reaction with NTR, the nitro-group of the para-nitro phenyl sulfonic moiety present in probe 1 was reduced to an amino-group, resulting in a near-infrared fluorescence turn-on of the latent cyanine 7 fluorophore. Probe 1 was capable of rapid and real-time quantitative detection of 0–150 ng mL−1 NTR with a limit of detection as low as 0.67 ng mL−1in vitro. In addition, probe 1 exhibited an outstanding performance of ultrafast measurements and suitable selectivity toward NTR to accurately sense intracellular basal NTR in ESKAPE bacterial pathogens. Most remarkably, probe 1 was capable of noninvasively identifying bacterial infection sites without showing any significantly increased signal of tumour sites in the same animal within 30 min. A new nitroreductase-responsive near-infrared fluorogenic probe can specifically image live bacteria in mouse models and does not accumulate at sites of inflammation or tumor.![]()
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Affiliation(s)
- Ling-Ling Wu
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 China
| | - Qinghua Wang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 China
| | - Yali Wang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 China
| | - Na Zhang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 China
| | - Qingyang Zhang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 China
| | - Hai-Yu Hu
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Beijing Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences, Peking Union Medical College Beijing 100050 China
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13
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Hu L, Chen Z, Yu C, Zhang J, Zhang H, Xu P, Xiao E. A rhodol-enone dye platform with dual reaction triggers for specific detection of Cys. J Mater Chem B 2020; 8:2438-2442. [PMID: 32104831 DOI: 10.1039/c9tb02794g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we have developed a rhodol-enone dye platform with bis-reaction-triggers for the selective detection of Cys.
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Affiliation(s)
- Linan Hu
- Department of Radiology
- The Second Xiangya Hospital
- Central South University
- Changsha
- P. R. China
| | - Zhu Chen
- Department of Radiology
- The Second Xiangya Hospital
- Central South University
- Changsha
- P. R. China
| | - Cheng Yu
- Department of Radiology
- The Second Xiangya Hospital
- Central South University
- Changsha
- P. R. China
| | - Jie Zhang
- Department of Radiology
- The Second Xiangya Hospital
- Central South University
- Changsha
- P. R. China
| | - Hailiang Zhang
- Institute of Clinical Pharmacy & Pharmacology
- Jining First People's Hospital
- Jining Medical University
- Jining 272000
- P. R. China
| | - Pengfei Xu
- Institute of Clinical Pharmacy & Pharmacology
- Jining First People's Hospital
- Jining Medical University
- Jining 272000
- P. R. China
| | - Enhua Xiao
- Department of Radiology
- The Second Xiangya Hospital
- Central South University
- Changsha
- P. R. China
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