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Maji A, Naskar R, Mitra D, Gharami S, Murmu N, Mondal TK. Fabrication of a New Coumarin Based Fluorescent "turn-on" Probe for Distinct and Sequential Recognition of Al 3+ and F - Along With Its Application in Live Cell Imaging. J Fluoresc 2023; 33:2403-2414. [PMID: 37084063 DOI: 10.1007/s10895-023-03208-0] [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: 02/08/2023] [Accepted: 03/09/2023] [Indexed: 04/22/2023]
Abstract
A new coumarin based fluorescent switch PCEH is fabricated which displays high selective sensing towards Al3+ among other metal cations at physiological pH. On gradual addition of Al3+, PCEH shows a brilliant "turn-on" emission enhancement in MeOH/H2O (4/1, v/v) solution. This new fluorescent switch is proven to be a reversible probe by gradual addition of F- into the PCEH-Al3+ solution. Detection limit as well as binding constant values are calculated to be in the order of 10-9 M and 104 M-1 respectively. We have also explored its potential as a biomarker in the application of live cell imaging using breast cancer cells (MDA-MB-231 cell).
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Affiliation(s)
- Atanu Maji
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Rahul Naskar
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Debarpan Mitra
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, 700026, India
| | - Saswati Gharami
- Department of Chemistry, Jadavpur University, Kolkata, 700032, India
| | - Nabendu Murmu
- Department of Signal Transduction and Biogenic Amines (STBA), Chittaranjan National Cancer Institute, Kolkata, 700026, India
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Nilo N, Reyna-Jeldes M, Covarrubias AA, Coddou C, Artigas V, Fuentealba M, Aguilar LF, Saldías M, Mellado M. A pH-Sensitive Fluorescent Chemosensor Turn-On Based in a Salen Iron (III) Complex: Synthesis, Photophysical Properties, and Live-Cell Imaging Application. Molecules 2023; 28:7237. [PMID: 37959657 PMCID: PMC10647502 DOI: 10.3390/molecules28217237] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/18/2023] [Accepted: 09/27/2023] [Indexed: 11/15/2023] Open
Abstract
pH regulation is essential to allow normal cell function, and their imbalance is associated with different pathologic situations, including cancer. In this study, we present the synthesis of 2-(((2-aminoethyl)imino)methyl)phenol (HL1) and the iron (III) complex (Fe(L1)2Br, (C1)), confirmed by X-ray diffraction analysis. The absorption and emission properties of complex C1 were assessed in the presence and absence of different physiologically relevant analytes, finding a fluorescent turn-on when OH- was added. So, we determined the limit of detection (LOD = 3.97 × 10-9 M), stoichiometry (1:1), and association constant (Kas = 5.86 × 103 M-1). Using DFT calculations, we proposed a spontaneous decomposition mechanism for C1. After characterization, complex C1 was evaluated as an intracellular pH chemosensor on the human primary gastric adenocarcinoma (AGS) and non-tumoral gastric epithelia (GES-1) cell lines, finding fluorescent signal activation in the latter when compared to AGS cells due to the lower intracellular pH of AGS cells caused by the increased metabolic rate. However, when complex C1 was used on metastatic cancer cell lines (MKN-45 and MKN-74), a fluorescent turn-on was observed in both cell lines because the intracellular lactate amount increased. Our results could provide insights about the application of complex C1 as a metabolic probe to be used in cancer cell imaging.
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Affiliation(s)
- Nicole Nilo
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; (N.N.); (V.A.); (M.F.); (L.F.A.)
| | - Mauricio Reyna-Jeldes
- Laboratory of Cancer Biology, Department of Oncology, Old Road Campus Research Building, University of Oxford, Oxford OX3 7DQ, UK;
- Laboratorio de Señalización Purinérgica, Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad Católica del Norte, Coquimbo 1781421, Chile; (A.A.C.); (C.C.)
| | - Alejandra A. Covarrubias
- Laboratorio de Señalización Purinérgica, Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad Católica del Norte, Coquimbo 1781421, Chile; (A.A.C.); (C.C.)
- Millennium Nucleus for the Study of Pain (MiNuSPain), Santiago 8330025, Chile
- Facultad de Ciencias Agropecuarias, Universidad del Alba, La Serena 1700000, Chile
| | - Claudio Coddou
- Laboratorio de Señalización Purinérgica, Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad Católica del Norte, Coquimbo 1781421, Chile; (A.A.C.); (C.C.)
- Millennium Nucleus for the Study of Pain (MiNuSPain), Santiago 8330025, Chile
- Núcleo para el Estudio del Cáncer a Nivel Básico, Aplicado, y Clínico, Universidad Católica del Norte, Coquimbo 1781421, Chile
| | - Vania Artigas
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; (N.N.); (V.A.); (M.F.); (L.F.A.)
| | - Mauricio Fuentealba
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; (N.N.); (V.A.); (M.F.); (L.F.A.)
| | - Luis F. Aguilar
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; (N.N.); (V.A.); (M.F.); (L.F.A.)
| | - Marianela Saldías
- Instituto de Investigación y Postgrado, Facultad de Ciencias de la Salud, Universidad Central de Chile, Santiago 8330507, Chile;
| | - Marco Mellado
- Instituto de Investigación y Postgrado, Facultad de Ciencias de la Salud, Universidad Central de Chile, Santiago 8330507, Chile;
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Jiang ST, Gao DJ, Yu Y, Yu Y. A portable front face fluorescent system for in situ detection of aluminum in flour foods. Food Chem 2023; 418:135986. [PMID: 36996656 DOI: 10.1016/j.foodchem.2023.135986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/16/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023]
Abstract
A simple and rapid method for in situ detection of aluminum in flour food was developed by using a self-made portable front face fluorescent system (PFFFS). The effects of pH, temperature, reaction time, protective agent and masking agent on the detection of Al3+ were investigated. The use of fluorescent probe protective agent, interfering ion masking agent, multi-point collection measurements and the working curves based on the analyte content in the real samples makes the present method have high accuracy, selectivity and reliability for in situ detection of Al3+ in flour foods. By comparison with the ICP-MS the accuracy and reliability of the present method were verified. The results showed that when 97 real samples were analyzed the Al3+ content values obtained by the present method and those obtained by ICP-MS method reached a highly significant correlation, with r ranging from 0.9747 to 0.9844. The self-made PFFFS combined with fluorescent probe does not require sample digestion, and can quickly detect Al3+ in flour food within 10 min. Therefore, the present method based on using FFFS has good practical application value for in-situ rapid detection of Al3+ in flour foods.
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Kumar M, Kumar A, Kishor S, Kumar S, Kumar A, Manav N, Bhagi A, Kumar S, John RP. N-diethylaminosalicylidene based “turn-on” fluorescent Schiff base chemosensor for Al3+ ion: Synthesis, characterisation and DFT/TD-DFT studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131257] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Wang H, Xu X, Yin J, Zhang Z, Xue L. A Highly Selective “Turn‐On” Fluorescent Sensor for Aluminum Ion Detection in Aqueous Solution Based on Imidazo[2,1‐
b
]thiazole Schiff Base. ChemistrySelect 2021. [DOI: 10.1002/slct.202101562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Haibin Wang
- College of Chemistry and Chemical Engineering Ningxia Normal University Xueyuan road, Ningxia Normal University 756000 Guyuan, Ningxia P. R. China
| | - Xin Xu
- College of Chemistry and Chemical Engineering Ningxia Normal University Xueyuan road, Ningxia Normal University 756000 Guyuan, Ningxia P. R. China
| | - Jichen Yin
- College of Chemistry and Chemical Engineering Ningxia Normal University Xueyuan road, Ningxia Normal University 756000 Guyuan, Ningxia P. R. China
| | - Zhifeng Zhang
- College of Chemistry and Chemical Engineering Ningxia Normal University Xueyuan road, Ningxia Normal University 756000 Guyuan, Ningxia P. R. China
| | - Lei Xue
- College of Chemistry and Chemical Engineering Ningxia Normal University Xueyuan road, Ningxia Normal University 756000 Guyuan, Ningxia P. R. China
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A novel phenolphthalein-based fluorescent sensor for Al 3+ sensing in drinking water and herbal tea samples. Food Chem 2020; 337:127659. [PMID: 32781355 DOI: 10.1016/j.foodchem.2020.127659] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/25/2020] [Accepted: 07/21/2020] [Indexed: 12/13/2022]
Abstract
In this study, 3,3-bis(4-hydroxy-3-((E)-((4-hydroxyphenyl)imino)methyl) phenyl)isobenzofuran-1(3H)-one (HMBP) was designed as a ''turn-on″ fluorogenic chemosensor to detect Al3+. Studies were performed in C2H5OH-HEPES (v/v, 9/1, pH 7.0) media at λem = 475 nm. The LOD value was found to be 0.113 µM. The stoichiometric ratio of HMBP-Al3+ was determined as 1:2 by Job's plot and ESI-MS as well as 1H NMR titration. The binding constant of chemosensor HMBP with Al3+ from the Benesi-Hildebrand equation was determined to be 1.21 × 108 M-1. The quantum (Φ) yields were obtained as 0.040 and 0.775 for the chemosensor HMBP and HMBP-Al3+, respectively. The response of the chemosensor HMBP towards Al3+ was attributed to the strategies of blocking the photo-induced electron transfer (PET) and CN isomerisation mechanisms. Finally, the sensing of the chemosensor HMBP for the determination of Al3+ in real food samples, drinking waters and herbal teas, were employed.
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Peng H, Peng X, Huang J, Huang A, Xu S, Zhou J, Huang S, Cai X. Synthesis and crystal structure of a novel pyridine acylhydrazone derivative as a “turn on” fluorescent probe for Al3+. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128138] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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