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Tamil Selvan G, Samson J, Rajasingh P, Li X, Ravi Kumar A, Zhu N, Kuldeep SA, Mosae Selvakumar P, Jun Tang P, Zhang Z. A captivating approach to elevate the detection of Al 3+ ions incorporates the utilization of a tripodal receptor intricately embellishing the surface of zinc oxide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 316:124339. [PMID: 38696995 DOI: 10.1016/j.saa.2024.124339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/15/2024] [Accepted: 04/22/2024] [Indexed: 05/04/2024]
Abstract
The FDA (Food and Drug Administration, (USA)) lists ZnO as a material that is widely acknowledged to be safe. ZnO NPs with a range of tiny particle sizes were made using the precipitation process. ZnO nanoparticles' surface is embellished with a tripodal sensor containing naphthol units. The assembly with the same receptor decorated on ZnO NPs is contrasted with the cation detection capabilities of the purified tripodal receptor. The UV-visible spectrophotometric analysis was conducted to study the state transitions of the receptor and the decorated ZnO receptor. A positive selectivity to Al3+ cations is determined by the fluorescence study under ideal circumstances. The particle size and surface morphologies are determined by DLS and SEM analysis for the same receptor - TP1 and embellished with a tripodal receptor TP2. Using a fluorescence switch-on Photoinduced Electron Transfer (PET) mechanism, the receptor coated on ZnO detects the presence of Al3+ ions with specificity. The binding constant value was determined using the B-H plot equation. Binding stoichiometry for [TP1-Al3+, TP2-Al3+] showed a 1:1 ratio. The fluorescence switches ON-OFF process of the ZnO surface adorned - TP2 with Tripodal receptor- TP1 was used to create molecular logic gates, which can function as a module for sensors and molecular switches. The addition of Na2EDTA in the solution of the [TP1; TP2 - Al3+] complex resulted in a noticeable reduction in the emission of fluorescence. This finding offers compelling support for the reversibility of the chemosensor. To enable the practical application of this sensor, we have developed a cassette containing receptors TP1 and TP2. Successfully, it can detect Al3+ metal ions. We performed a comprehensive assessment of the dependability and appropriateness of our approach in measuring the concentration of Al3+ ions in wastewater produced by important industrial procedures.
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Affiliation(s)
- G Tamil Selvan
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Joel Samson
- Department of NanoScience and Technology, KITS, Coimbatore, Tamil Nadu 641114, India
| | - P Rajasingh
- Department of Chemistry, Kamarajar Government Arts College, Surandai, Tamil Nadu 627859, India
| | - Xuesong Li
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - A Ravi Kumar
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Nuanfei Zhu
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Sweety Angela Kuldeep
- Environmental Science Program, Asian University for Women, Chittagong 4000, Bangladesh
| | | | - P Jun Tang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310015, China
| | - Zhen Zhang
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
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Barzinmehr H, Mirza-Aghayan M, Heidarian M. Isatin-Schiff base functionalized graphene oxide as a highly selective turn-on fluorescent probe for the detection of Pd(II) via photoinduced electron transfer pathway. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 309:123673. [PMID: 38198996 DOI: 10.1016/j.saa.2023.123673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/16/2023] [Accepted: 11/19/2023] [Indexed: 01/12/2024]
Abstract
We investigated the use of isatin-Schiff base functionalized graphene oxide (ISBGO) as a selective fluorescent chemosensor for the detection of palladium ions. Selectivity tests indicated that over 23 metal ions tested, ISBGO (λex = 340 nm, λem = 504 nm) showed the highest affinity for Pd(II), displaying a 10.1-fold enhancement. Also, interference tests proved that in the presence of both Pd(II) and other metal ions, there was still high fluorescence intensity and no considerable quenching occurred. According to DFT and TD-DFT calculations, photo-induced electron transfer (PET) is responsible for the turn-on response produced by the chemosensor. Coordination of Pd(II) with ISBGO in fact blocks PET from imine nitrogen of 3-iminoindolin-2-one moiety to the benzene ring, which in turn leads to a turn-on response. In addition, Job's plot analysis and Benesi-Hildebrand approach suggest that ISBGO preferably forms a 1:1 complex with Pd(II) with an association constant of 1.020 × 105 M-1. Moreover, FT-IR spectroscopy and DFT study showed that amide oxygen and imine nitrogen of 3-iminoindolin-2-one moiety acted as binding sites of ISBGO. High sensitivity, fast response, great degree of sensitivity, short life time, low detection limit of 32 nM combined with high association constant (Kf) of 1.020 × 105 M-1 and increased fluorescence quantum yield (Φf) of roughly 1.5-fold in the presence of Pd (II), highlight the role of ISBGO as an excellent probe for sensing Pd(II) in aqueous solution.
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Affiliation(s)
- Hamed Barzinmehr
- Department of Chemistry and Biochemistry, Baylor University, One Bear Place, Waco, TX 76798-7348, USA; Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P. O. BOX 14335-186, Tehran, Iran
| | - Maryam Mirza-Aghayan
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P. O. BOX 14335-186, Tehran, Iran.
| | - Maryam Heidarian
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P. O. BOX 14335-186, Tehran, Iran
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Kajinehbaf T, Alizadeh N. A selective fluorescent probe based on citrate doped polypyrrole for dual determination of VO 2+/Fe 3+ in biological samples. NEW J CHEM 2022. [DOI: 10.1039/d1nj05376k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel water-soluble PPy–Cit polymer is synthesized as a selective fluorescent sensor for dual determination of VO2+ and Fe3+ ions sequentially by the time discrimination method in blood serum and dietary supplement vanadyl sulfate tablet samples.
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Affiliation(s)
- Taraneh Kajinehbaf
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
| | - Naader Alizadeh
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran
- Faculty of Interdisciplinary Science and Technology, Tarbiat Modares University, Tehran, Iran
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Maitra S, Halder S, Maitra T, Roy S. Superior light absorbing CdS/vanadium sulphide nanowalls@TiO 2 nanorod ternary heterojunction photoanodes for solar water splitting. NEW J CHEM 2021. [DOI: 10.1039/d0nj06082h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Vanadium sulphide is an emerging infrared active photocatalyst that has not been utilized to its maximum potential.
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Affiliation(s)
- Soumyajit Maitra
- Department of Chemical Engineering
- University of Calcutta
- Kolkata
- India
| | - Somoprova Halder
- Department of Chemical Engineering
- University of Calcutta
- Kolkata
- India
| | - Toulik Maitra
- Department of Chemical Engineering
- University of Calcutta
- Kolkata
- India
| | - Subhasis Roy
- Department of Chemical Engineering
- University of Calcutta
- Kolkata
- India
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Tamil Selvan R, Tamil Selvan G, Varadaraju C, Enoch IV, Mosae Selvakumar P. Design and synthesis of a tripodal receptor for the selective detection of Fe3+. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.matpr.2020.03.069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Varadaraju C, Paulraj MS, Tamilselvan G, Muthu Vijayan Enoch IV, Srinivasadesikan V, Shyi-Long L. Evaluation of metal ion sensing behaviour of fluorescent probe along with its precursors: PET-CHEF mechanism, molecular logic gate behaviour and DFT studies. J INCL PHENOM MACRO 2019. [DOI: 10.1007/s10847-019-00919-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Selvan GT, Poomalai S, Ramasamy S, Selvakumar PM, Muthu Vijayan Enoch IV, Lanas SG, Melchior A. Differential Metal Ion Sensing by an Antipyrine Derivative in Aqueous and β-Cyclodextrin Media: Selectivity Tuning by β-Cyclodextrin. Anal Chem 2018; 90:13607-13615. [PMID: 30412380 DOI: 10.1021/acs.analchem.8b03810] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
β-Cyclodextrin (β-CD) is a nontoxic cyclic oligosachcharide that can encapsulate all or part of organic molecules of appropriate size and specific shape through noncovalent interaction. Herein, we report the influence of β-CD complex formation of an antipyrine derivative on its metal ion sensing behavior. In aqueous solution, the antipyrine shows a turn-on fluorescence sensing of vanadyl ion, and in cyclodextrin medium it senses aluminum ion. The compound shows an unusual fluorescence quenching on binding with β-cyclodextrin (log KSV = 2.34 ± 0.02). The differential metal ion sensing is due to the partial blocking of the chelating moiety by the cyclodextrin molecule. The structure of the antipyrine-cyclodextrin complex is optimized by two-dimensional rotating-frame Overhauser effect spectroscopy. The binding constant is determined by isothermal titration calorimetry (log K = 2.09 ± 0.004). The metal ion binding site is optimized by quanutm mechanical calculations. The lower limit of detection of vanadyl and aluminum ions, respectively, are 5 × 10-8 and 5 × 10-7 mol dm-3. This is the first report of selectivity of two different cations by a chemosensor in water and in β-CD.
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Affiliation(s)
| | - Sumathi Poomalai
- Department of Chemistry , Muthayammal College of Arts and Science , Namakkal District , Tamil Nadu , India
| | | | | | | | - Sara Gracia Lanas
- Polytechnic Department of Engineering, Chemistry Laboratories , University of Udine , via del Cotonificio 108 , 33100 Udine , Italy
| | - Andrea Melchior
- Polytechnic Department of Engineering, Chemistry Laboratories , University of Udine , via del Cotonificio 108 , 33100 Udine , Italy
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Tamil Selvan G, Varadaraju C, Tamil Selvan R, Enoch IVMV, Mosae Selvakumar P. On/Off Fluorescent Chemosensor for Selective Detection of Divalent Iron and Copper Ions: Molecular Logic Operation and Protein Binding. ACS OMEGA 2018; 3:7985-7992. [PMID: 31458937 PMCID: PMC6644644 DOI: 10.1021/acsomega.8b00748] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 07/04/2018] [Indexed: 05/04/2023]
Abstract
Here, naphthalene diamine-based β-diketone derivative (compound LH) was successfully used as a dual signaling probe for divalent cations, Fe2+ and Cu2+ ions, in bimodal methods (colorimetric and fluorometric). It showed fluorescent enhancement for Fe2+ ion by photoinduced electron transfer mechanism and fluorescence quenching for Cu2+ ion by charge-transfer process. Binding stoichiometry for [LH-(Fe2+)2] and [LH-(Cu2+)2] was found to be 1:2 by Job's plot method and, the binding constants were calculated as 1.6638 × 1010 and 9.22929 × 108 M-1, respectively. Compound LH exhibited OR and XOR logic gate behavior with H+, Fe2+, and Cu2+ as inputs. Further, the compound LH and bovine serum albumin binding interaction showed quenching of fluorescence by Förster resonance energy-transfer mechanism.
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Affiliation(s)
- G. Tamil Selvan
- Chemistry Research Lab, Karunya Institute of Technology and Sciences, Coimbatore 641114, Tamil Nadu, India
| | - Chitra Varadaraju
- Chemistry Research Lab, Karunya Institute of Technology and Sciences, Coimbatore 641114, Tamil Nadu, India
| | - R. Tamil Selvan
- Chemistry Research Lab, Karunya Institute of Technology and Sciences, Coimbatore 641114, Tamil Nadu, India
| | - Israel V. M. V. Enoch
- Chemistry Research Lab, Karunya Institute of Technology and Sciences, Coimbatore 641114, Tamil Nadu, India
| | - P. Mosae Selvakumar
- Chemistry Research Lab, Karunya Institute of Technology and Sciences, Coimbatore 641114, Tamil Nadu, India
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