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S V, Nag A, Das AK. A versatile sensor capable of ratiometric fluorescence detection of trace water and turn-on detection of Cu 2+ modulating the binding interaction of a Cu(II) complex with BSA and DNA complemented by docking studies. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:5263-5271. [PMID: 39015041 DOI: 10.1039/d4ay00675e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
A fluorescent molecule, pyridine-coupled bis-anthracene (PBA), has been developed for the selective fluorescence turn-on detection of Cu2+. Interestingly, the ligand PBA also exhibited a red-shifted ratiometric fluorescence response in the presence of water. Thus, a ratiometric water sensor has been utilized as a selective fluorescence turn-on sensor for Cu2+, achieving a 10-fold enhancement in the fluorescence and quantum yield at 446 nm, with a lower detection limit of 0.358 μM and a binding constant of 1.3 × 106 M-1. For practical applications, sensor PBA can be used to detect Cu2+ in various types of soils like clay soil, field soil and sand. The interaction of the PBA-Cu(II) complex with transport proteins like bovine serum albumin (BSA) and ct-DNA has been investigated through fluorescence titration experiments. Additionally, the structural optimization of PBA and the PBA-Cu(II) complex has been demonstrated by DFT, and the interaction of the PBA-Cu(II) complex with BSA and ct-DNA has been analyzed using theoretical docking studies.
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Affiliation(s)
- Vishnu S
- Department of Chemistry, Christ University, Hosur Road, Bangalore, Karnataka, 560029, India.
| | - Anish Nag
- Department of Life Science, Christ University, Hosur Road, Bangalore, Karnataka, 560029, India
| | - Avijit Kumar Das
- Department of Chemistry, Christ University, Hosur Road, Bangalore, Karnataka, 560029, India.
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Zheng Y, Zheng Y, Zhang Y, Meng H, Tan C. An Ultra-low Detection Limit Fe 3+ Optical Fiber Fluorescent Sensor Based on a Anti-B 18H 22 Derivative with Aggregation-induced Emission Enhancement. J Fluoresc 2024:10.1007/s10895-023-03550-3. [PMID: 38193953 DOI: 10.1007/s10895-023-03550-3] [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: 10/01/2023] [Accepted: 12/12/2023] [Indexed: 01/10/2024]
Abstract
A fluorescent Fe3+ probe ((C10H7NO2)2B18H20, M1) by introducing two isoquinoline-1-carboxylic acid group into the 6,9-position of anti-B18H22 was designed and synthesized. The structure of M1 was investigated by 1H NMR, MS, FT-IR and theoretical calculation, and its optical properties were characterized with UV-Vis and PL. M1 showed aggregation induced emission enhancement (AIEE) properties in THF/H2O solution, and exhibited an excellent selectivity toward Fe3+ in THF/H2O (v/v, ƒw = 95%) solution with a detection limit of 1.93 × 10-5 M. The interaction mechanism of probe for detecting Fe3+ is attributed to the involvement of intramolecular charge transfer (ICT) process. Furthermore, a optical fiber fluorescent Fe3+ sensor based on M1 sensing film was developed, the detection limit of the optical fiber Fe3+ fluorescent sensor could be improved to13.8 pM, the ultra-low detection limit is superior to most reported fluorescent probes (or sensors) towards Fe3+. This method has the advantages of high sensitivity, anti-interference and easy to operate, and has great potential in the field of the analysis of environmental and biological samples.
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Affiliation(s)
- Yong Zheng
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510006, China
| | - Yulian Zheng
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510006, China
| | - Yimei Zhang
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510006, China
| | - Hongyun Meng
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510006, China
| | - Chunhua Tan
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510006, China.
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Tamrakar A, Kumar P, Garg N, Luis SV, Pandey MD. Intracellular Zn(II) induced turn-on fluorescence of an L-phenylalanine-derived pseudopeptide. Org Biomol Chem 2023; 21:8823-8828. [PMID: 37906437 DOI: 10.1039/d3ob01337e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
A C2 symmetric L-phenylalanine-derived pseudopeptide has been synthesized for selective and sensitive recognition of Zn(II) ions in aqueous-organic media. The pseudopeptidic probes exhibit intracellular Zn(II) ion-sensing capabilities as demonstrated via live-cell fluorescence studies on RAW264.7 cells. Hence, we present a bioinspired pseudopeptide for potential biological applications involving intracellular Zn(II) ion detection.
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Affiliation(s)
- Arpna Tamrakar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Praveen Kumar
- Department of Medicinal Chemistry, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Neha Garg
- Department of Medicinal Chemistry, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Santiago V Luis
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. SosBaynat, s/n, E-12071 Castellón, Spain
| | - Mrituanjay D Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
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Nigam KK, Tamrakar A, Pandey MD. L-Phenylalanine-derived pseudopeptidic bioinspired materials: Zn(II) induced fluorescence enhancement and precise tuning of self-assembled nanostructures. SOFT MATTER 2023; 19:7266-7270. [PMID: 37740379 DOI: 10.1039/d3sm00703k] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
The pseudopeptide, owing to its intriguing, sustainable, and easily accessible multifunctional properties, has attracted significant research interest over the years. C2-symmetric pseudopeptidic chiral bioinspired materials have been developed for their selective sensitivity to Zn(II) ions via a turn-on fluorescence under physiological conditions. Moreover, these are promising soft materials for precisely tuning their self-assembled nanostructures after incubating with Zn(II), opening avenues for exploring similar effects in various peptidomimetics.
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Affiliation(s)
- Kamlesh Kumar Nigam
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Arpna Tamrakar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Mrituanjay D Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
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Zhang J, Wang YY, Sun H, Li SY, Xiang SH, Tan B. Enantioselective three-component Ugi reaction catalyzed by chiral phosphoric acid. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9606-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Korchowiec B, Gorczyca M, Korchowiec J, Rubio-Magnieto J, Lotfallah AH, Luis SV, Rogalska E. The effect of protonation in a family of peptide based gemini amphiphiles on the interaction in Langmuir films. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Gorla L, Martí-Centelles V, Altava B, Burguete MI, Luis SV. The role of the side chain in the conformational and self-assembly patterns of C2-symmetric Val and Phe pseudopeptidic derivatives. CrystEngComm 2019. [DOI: 10.1039/c8ce02088d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Side chain as the main conformational and self-assembly structural factor for C2-pseudopeptides.
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Affiliation(s)
- Lingaraju Gorla
- Departamento de Química Inorgánica y Orgánica
- Universitat Jaume I
- Castellón
- Spain
| | | | - Belén Altava
- Departamento de Química Inorgánica y Orgánica
- Universitat Jaume I
- Castellón
- Spain
| | - M. Isabel Burguete
- Departamento de Química Inorgánica y Orgánica
- Universitat Jaume I
- Castellón
- Spain
| | - Santiago V. Luis
- Departamento de Química Inorgánica y Orgánica
- Universitat Jaume I
- Castellón
- Spain
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Gao W, Li H, Pu S. A highly selective fluorescent probe for Cu2+ based on a diarylethene with a benzo[1,2,5]oxadiazol-4-ylamine Schiff base unit. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.06.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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