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Manoj Kumar S, Kulathu Iyer S. D-π-A-π-D-Configured Imidazole-Tethered Benzothiadiazole-Based Sensor for the Ratiometric Discrimination of Picric Acid: Applications in Latent Fingerprint Imaging. J Org Chem 2024; 89:5392-5400. [PMID: 38564183 DOI: 10.1021/acs.joc.3c02803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
A tetraphenyl imidazole-appended benzothiadiazole-based fluorogenic probe (4,7-bis(4-(1,4,5-triphenyl-1H-imidazol-2-yl)phenyl)benzo[c][1,2,5]thiadiazole (BIPT)) has been successfully synthesized and characterized by NMR and high-resolution mass spectrometry (HRMS) spectral analyses. A low limit of detection (LOD) can be achieved to detect picric acid (PA; 7.89 nM). When benzothiadiazole acceptors are incorporated in the D-A-D probe, it can produce a large Stokes shift (206 nm) as a result. Fascinatingly, the fluorescence signals of BIPT were ratiometrically induced by the interaction with PA and exhibited an apparent emission shift from pink to green. The detection process of BIPT is triggered by an intermolecular charge transfer process, as the charge transfer takes place from the electron-rich imidazole to the electron-deficient PA. Moreover, fluorescence detection of PA has been employed in paper strips. Advantageously, sensor BIPT can potentially be applied to contact mode and real-time detection of PA in environmental water samples. Additionally, the BIPT sensor has been successfully employed for latent fingerprint imaging. The study provides clear insights into the rational design of chemosensors for sensing and real-time applications.
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Affiliation(s)
- Selin Manoj Kumar
- Department of Chemistry, School of Advanced Sciences and Vellore Institute of Technology, Vellore 632014, India
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2
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Chopra T, Parkesh R. Microwave-Assisted Synthesis of Functionalized Carbon Nanospheres Using Banana Peels: pH-Dependent Synthesis, Characterization, and Selective Sensing Applications. ACS OMEGA 2024; 9:4555-4571. [PMID: 38313540 PMCID: PMC10831994 DOI: 10.1021/acsomega.3c07544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/15/2023] [Accepted: 12/22/2023] [Indexed: 02/06/2024]
Abstract
This work presents a microwave-based green synthesis method for producing carbon nanospheres (CNSs) and investigates the impact of presynthesis pH on their size and assembly. The resulting CNSs are monodispersed, averaging 35 nm in size, and exhibit notable characteristics including high water solubility, photostability, and a narrow size distribution, achieved within a synthesis time of 15 min. The synthesized CNS features functional groups such as -OH, -COOH, -NH, -C-O-C, =C-H, and -CH. This diversity empowers the CNS for various applications including sensing. The CNS exhibits a distinct UV peak at 282 nm and emits intense fluorescence at 430 nm upon excitation at 350 nm. These functionalized CNSs enable selective and specific sensing of Cu2+ ions and the amino acid tryptophan (Trp) in aqueous solutions. In the presence of Cu2+ ions, static-based quenching of CNS fluorescence was observed due to the chelation-enhanced quenching (CHEQ) effect. Notably, Cu2+ ions induce a substantial change in UV spectra alongside a red-shift in the peak position. The limits of detection and quantification for Cu2+ ions with CNS are determined as 0.73 and 2.45 μg/mL, respectively. Additionally, on interaction with tryptophan, the UV spectra of CNS display a marked increase in the peak at 282 nm, accompanied by a red-shift phenomenon. The limits of detection and quantification for l-tryptophan are 4.510 × 10-3 and 1.50 × 10-2 μg/mL, respectively, indicating its significant potential for biological applications. Furthermore, the practical applicability of CNSs is demonstrated by their successful implementation in analyzing real water samples and filter paper-based examination, showcasing their effectiveness for on-site sensing.
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Affiliation(s)
- Tavishi Chopra
- CSIR-Institute
of Microbial Technology, Chandigarh 160036, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Raman Parkesh
- CSIR-Institute
of Microbial Technology, Chandigarh 160036, India
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3
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Arshad M, Sowmya P, Paul A, Joseph A. Sensing of picric acid using an AIEE active "Turn Off" fluorescent probe derived from hydroxy naphthaldehyde and benzyloxy benzaldehyde. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123465. [PMID: 37783035 DOI: 10.1016/j.saa.2023.123465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/17/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023]
Abstract
A novel Schiff base with AIEE characteristics has been developed and used as a chemosensor for picric acid in aqueous media. The Schiff base 1-((E)-((E)-(4-(benzyloxy) benzylidene) hydrazono) methyl) naphthalen-2-ol [BBHN] with strong fluorescence emission was obtained by the simple condensation of 1-(hydrazonomethyl)naphthan-2-ol and 4-benzoxy benzaldehyde. The characterization of BBHN was done using Fourier Transfer Infra-Red, UV-visible, Magnetic Resonance (1H and 13C) spectroscopy, and HRMS. The sensing behaviour of BBHN aggregates towards nitro explosive was then investigated. The aggregates of BBHN showed a quick, highly selective, and sensitive fluorescence 'Turn Off' response towards picric acid (PA) in an aqueous medium among various other nitroaromatics. The limit of detection was 4.04 µM with 2.03 × 106 M-1 as the quenching constant. The fluorescence "Turn Off" response in the presence of PA is mainly due to π-π interactions, and non-covalent hydrogen bonding interactions. Moreover, steady-state fluorescence lifetime measurement and Stern - Volmer plots reveal that the fluorescence quenching followed mixed quenching strategies.
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Affiliation(s)
- Muhammed Arshad
- Department of Chemistry, University of Calicut, Calicut University P O-673 635, India
| | - P Sowmya
- Department of Chemistry, University of Calicut, Calicut University P O-673 635, India
| | - Anila Paul
- Department of Chemistry, University of Calicut, Calicut University P O-673 635, India
| | - Abraham Joseph
- Department of Chemistry, University of Calicut, Calicut University P O-673 635, India.
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Hossain E, Hazra A, Datta S, Khan S, Pramanik S, Banerjee P, Mir MH, Mukhopadhyay S. Facile construction of an anthracene-decorated highly luminescent coordination polymer for the selective detection of explosive nitroaromatics and the mutagenic pollutant TNP. RSC Adv 2024; 14:397-404. [PMID: 38173612 PMCID: PMC10759258 DOI: 10.1039/d3ra06926e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 12/04/2023] [Indexed: 01/05/2024] Open
Abstract
Explosive nitroaromatic compounds (epNACs) are a group of chemicals that have caused significant human casualties through terrorist attacks and they also pose health risks. For the benefit of homeland security and environmental health, there is room for advancing research on the precise detection of epNACs. Coordination polymers (CPs) successfully serve this purpose because of their binding abilities and quenching capabilities. In this regard, a one-dimensional (1D) CP [Zn(bdc)(avp)2(H2O)]n (1; H2bdc = 1,4-benzenedicarboxylic acid and avp = 4-[2-(9-anthryl)vinyl]pyridine) was synthesized, which remarkably demonstrated extremely efficient ratiometric and selective sensing capacity toward epNACs and the mutagenic pollutant 2,4,6-trinitrophenol (TNP) with a quick response. Density functional theory (DFT) calculations provided a thorough analysis of the mechanistic routes behind the quenching reaction. Herein, geometrically accessible interaction sites were strategically decorated using anthracene moieties, allowing the quick and precise detection of explosive nitro derivatives and the carcinogenic pollutant TNP with increased sensitivity.
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Affiliation(s)
- Ersad Hossain
- Department of Chemistry, Jadavpur University Kolkata 700 032 India
| | - Abhijit Hazra
- Electric Mobility & Tribology Research Group, CSIR-Central Mechanical Engineering Research Institute Mahatma Gandhi Avenue Durgapur 713 209 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
| | - Sourav Datta
- Electric Mobility & Tribology Research Group, CSIR-Central Mechanical Engineering Research Institute Mahatma Gandhi Avenue Durgapur 713 209 India
- Department of Chemistry, Aliah University New Town Kolkata 700 160 India
| | - Samim Khan
- Department of Chemistry, Aliah University New Town Kolkata 700 160 India
| | - Samit Pramanik
- Department of Chemistry, Jadavpur University Kolkata 700 032 India
| | - Priyabrata Banerjee
- Electric Mobility & Tribology Research Group, CSIR-Central Mechanical Engineering Research Institute Mahatma Gandhi Avenue Durgapur 713 209 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
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5
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Bairy G, Das P, Dutta B, Bhowmik S, Ray PP, Sinha C. In Situ Oxidation of Pyridyl-Dihydrobenzoimidazoquinazoline and the Synthesis of a Highly Luminescent Cd(II) Coordination Polymer: A Promising Candidate for Mutagenic Nitroaromatic Detection and Device Fabrication. Inorg Chem 2023; 62:12773-12782. [PMID: 37531605 DOI: 10.1021/acs.inorgchem.3c01308] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Pyridyl-substituted imidazoquinoline, a potent fluorescent framework, is advantageous to architect multifunctional coordination networks for sensing and fabricating emergent electrical conductors. In this work, a Cd(II)-based one-dimensional (1D) coordination polymer (1D CP), [Cd(glu)2(pbiq)2(H2O)]n (1), [H2glu = glutaric acid and pbiq = 4-(6-(pyridin-4-yl)benzo[4,5]imidazo[1,2-c]quinazoline)], has been structurally confirmed by single-crystal X-ray crystallography. The H-bonding and π···π interactions built a three-dimensional (3D) supramolecular structure that strongly emits at 416 nm in acetonitrile suspension. Potentially intrusive nitroaromatics (NAs) and trinitrophenol (TNP) selectively quench the strong emission of 1, and the highest quenching is noted in the case of TNP. A detection limit (limit of detection (LOD)) of 1.51 × 10-7 M for TNP is determined. The band gap (3.31 eV) of 1 recognizes semiconducting behavior, and an electronic device is fabricated. The correlation of current vs voltage (I-V plot) reveals a substantial non-ohmic electrical conductivity of 1 (Λ: 1.10 × 10-5 S m-1) along with a low energy barrier (ΦB: 0.69), and the series resistance (Rs) becomes 6.21 kΩ.
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Affiliation(s)
- Gurupada Bairy
- Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Pubali Das
- Department of Physics, Jadavpur University, Kolkata 700032, India
| | - Basudeb Dutta
- Institute for Integrated Cell-Material Sciences, Kyoto University Institute for Advanced Study, Kyoto University, Yoshida, Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Saumitra Bhowmik
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal, India
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6
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Chongdar S, Mondal U, Chakraborty T, Banerjee P, Bhaumik A. A Ni-MOF as Fluorescent/Electrochemical Dual Probe for Ultrasensitive Detection of Picric Acid from Aqueous Media. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 36893380 DOI: 10.1021/acsami.3c00604] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
A water-stable, microporous, luminescent Ni(II)-based metal-organic framework (MOF) (Ni-OBA-Bpy-18) with a 4-c uninodal sql topology was solvothermally synthesized using mixed N-, O-donor-directed π-conjugated co-ligands. The extraordinary performance of this MOF toward rapid monitoring of mutagenic explosive trinitrophenol (TNP) in aqueous and vapor phases by the fluorescence "Turn-off" technique with an ultralow detection limit of 66.43 ppb (Ksv: 3.45 × 105 M-1) was governed by a synchronous occurrence of photoinduced electron transfer-resonance energy transfer-intermolecular charge transfer (PET-RET-ICT) and non-covalent π···π weak interactions, as revealed from density functional theory studies. The recyclable nature of the MOF, detection from complex environmental matrices, and fabrication of a handy MOF@cotton-swab detection kit certainly escalated the on-field viability of the probe. Interestingly, the presence of electron-withdrawing TNP decisively facilitated the redox events of the reversible NiIII/II and NiIV/III couples under an applied voltage based on which electrochemical recognition of TNP was realized by the Ni-OBA-Bpy-18 MOF/glassy carbon electrode, with an excellent detection limit of ∼0.6 ppm. Such detection of a specific analyte by MOF-based probe via two divergent yet coherent techniques is unprecedented and yet to be explored in relevant literature.
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Affiliation(s)
- Sayantan Chongdar
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Udayan Mondal
- Surface Engineering & Tribology Division, CSIR-Central Mechanical Engineering Research Institute, M. G. Avenue, Durgapur 713209, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Tonmoy Chakraborty
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Priyabrata Banerjee
- Surface Engineering & Tribology Division, CSIR-Central Mechanical Engineering Research Institute, M. G. Avenue, Durgapur 713209, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Asim Bhaumik
- School of Materials Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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7
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Mondal A, Hazra A, Chattopadhyay MK, Kundu D, Tarai SK, Biswas P, Bhattacharjee A, Mandal S, Banerjee P. Explicating the recognition phenomenon of hazardous nitro-aromatic compound from contaminated environmental and cellular matrices by rationally designed pyridine-functionalized molecular probes. Heliyon 2023; 9:e13620. [PMID: 36873140 PMCID: PMC9975245 DOI: 10.1016/j.heliyon.2023.e13620] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 02/06/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
In the quest of recognizing hazardous nitro-aromatic compounds in water, two pyridine-functionalized Schiff-base chemosensors, DMP ((E)-N-(3,4-dimethoxybenzylidene)(pyridin-2-yl)methanamine)) and MP (4-((E)-((pyridin-2-yl)methylimino)methyl)-2-ethoxyphenol) have been synthesized to detect mutagenic 2,4,6-Trinitrophenol (TNP) in soil, water as well as cellular matrices by producing turn-off emission responses as a combined consequence of PET and RET processes. Several experimental analyses including ESI-MS, FT-IR, photoluminescence, 1H NMR titration, and the theoretical calculations ascertained the formation and sensing efficacies of the chemosensors. The analytical substantiations revealed that structural variation of the chemosensors played a significant role in improving the sensing efficiency, which would certainly be worthwhile in developing small molecular TNP sensors. The present work depicted that the electron density within the MP framework was more than that of DMP due to the intentional incorporation of -OEt and -OH groups. As a result, MP represented a strong interaction mode towards the electron-deficient TNP with a detection limit of 39 μM.
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Affiliation(s)
- Amita Mondal
- CSIR-Central Mechanical Engineering Research Institute, M. G. Avenue, Durgapur 713209, India.,Department of Chemistry, National Institute of Technology, M. G. Avenue, Durgapur 713209, India
| | - Abhijit Hazra
- CSIR-Central Mechanical Engineering Research Institute, M. G. Avenue, Durgapur 713209, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
| | | | - Debojyoti Kundu
- CSIR-Central Mechanical Engineering Research Institute, M. G. Avenue, Durgapur 713209, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
| | - Swarup Kumar Tarai
- Department of Chemistry, National Institute of Technology, M. G. Avenue, Durgapur 713209, India
| | - Pritam Biswas
- Department of Biotechnology, National Institute of Technology, M. G. Avenue, Durgapur 713209, India
| | - Ashish Bhattacharjee
- Department of Biotechnology, National Institute of Technology, M. G. Avenue, Durgapur 713209, India
| | - Sukdeb Mandal
- CSIR-Central Mechanical Engineering Research Institute, M. G. Avenue, Durgapur 713209, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
| | - Priyabrata Banerjee
- CSIR-Central Mechanical Engineering Research Institute, M. G. Avenue, Durgapur 713209, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, Uttar Pradesh, India
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8
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Barot YB, Anand V, Mishra R. AIE-active phenothiazine based Schiff-base for the selective sensing of the explosive picric acid in real water samples and paper-based device. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Pratibha, Kapoor A, Rajput JK, Kumar A. Dualistic Fluorescence as Well as Portable Smartphone-Assisted RGB-Relied Sensing Assay for the Ultra-Sensitive Determination of Pendimethalin in Food and Water Samples by AIEE Active Organic Probes. Anal Chem 2022; 94:17685-17691. [PMID: 36503263 DOI: 10.1021/acs.analchem.2c04536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Herein, a peculiar fluorometric as well as smartphone-assisted RGB-relied sensing assay is introduced for determining pendimethalin (PDM) herbicide contents (in parts per trillion level) based on the anthracene-incorporated pyrimidinone/thione probes (S1 to S4). These compounds offered a unique and impressive aggregation-induced emission enhancement (AIEE) behavior by aggregation in H2O-dimethylformamide medium. Furthermore, these AIEE active compounds were found to display superior selectivity and extraordinary sensitivity for PDM detection via fluorescence quenching response. The extent of quenching degree was found to be linearly varied with the PDM concentration ranging from 0 to 20 nM, with a lower limit of detection of 367.8 pM (103.4 ppt) by S3 nanoaggregates. The detailed investigation revealed that such a high sensitivity of the designed sensor toward PDM is attributable to the existence of dual "photoinduced charge transfer and Förster resonance energy transfer process mechanisms". The Stern-Volmer plots, Job's plot, Benesi-Hildebrand plot, and 1H NMR titrations as well indicated the existence of substantial interactions between the sensor and PDM. The conducted selectivity tests provided distinguishable selectivity for PDM detection over various other insecticides/pesticides as well as other structural nitro analogues. Additionally, the presented sensing assay was also applied to quantify the PDM residues in spiked food (vegetables, fruits, and grains) and water samples. In addition, the sensor-coated fluorescent paper test strips were also fabricated for on-site detection of PDM. The applicability of smartphone-relied RGB analysis significantly streamlined the operation process, speeds up the detection procedure, and also offered a novel methodology for real-time analysis of PDM in real samples.
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Affiliation(s)
- Pratibha
- Department of Chemistry, Dr B.R. Ambedkar National Institute of Technology, Jalandhar 144011, Punjab, India
| | - Atul Kapoor
- Department of Chemistry, Dr B.R. Ambedkar National Institute of Technology, Jalandhar 144011, Punjab, India
| | - Jaspreet Kaur Rajput
- Department of Chemistry, Dr B.R. Ambedkar National Institute of Technology, Jalandhar 144011, Punjab, India
| | - Arvind Kumar
- Department of Electronics and Communication Engineering, University Institute of Engineering and Technology, Panjab University, Chandigarh 160014, India
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10
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GO/ionic surfactant inspired photophysical modulation of rhodamine B in Reline with or without additives. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Tahir Waseem M, Muhammad Junaid H, Gul H, Ali Khan Z, Yu C, Anjum Shahzad S. Fluorene based fluorescent and colorimetric sensors for ultrasensitive detection of nitroaromatics in aqueous medium. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113660] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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12
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Khamrang T, Kathiravan A, Ponraj C, Saravanan D. Y-shaped fluorophore: Synthesis, crystal structure and picric acid detection. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Ghosh A, Seth SK, Ghosh A, Pattanayak P, Mallick A, Purkayastha P. A New Compound for Sequential Sensing of Picric Acid and Aliphatic Amines: Physicochemical Details and Construction of Molecular Logic Gates. Chem Asian J 2021; 16:1157-1164. [PMID: 33787004 DOI: 10.1002/asia.202100117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/30/2021] [Indexed: 01/09/2023]
Abstract
Picric acid (PA) at low concentration is a serious water pollutant. Alongside, aliphatic amines (AAs) add to the queue to pollute surface water. Plenty of reports are available to sense PA with an ultralow limit of detection (LOD). However, only a handful of works are testified to detect AAs. A new fluorescent donor-acceptor compound has been synthesized with inherent intramolecular charge transfer (ICT) character that enables selective and sensitive colorimetric quantitative detection of PA and AAs with low LODs in non-aqueous as well as aqueous solutions. The synthesized compound is based on a hemicyanine skeleton containing two pyridenylmethylamino groups at the donor and a benzothiazole moiety at the acceptor ends. The detailed mechanisms and reaction dynamics are explained spectroscopically along with computational support. The fluorescence property of the detecting compound changes due to protonation of its pyridinyl centers by PA leading to quenching of fluorescence and subsequently de-protonation by AAs to revive the signal. We have further designed logic circuits from the acquired optical responses by sequential interactions.
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Affiliation(s)
- Ashutosh Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, WB 741262, Mohanpur, India
| | - Sourav Kanti Seth
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, WB 741262, Mohanpur, India
| | - Arnab Ghosh
- Department of Materials Science, Indian Association for the Cultivation of Science, 700032, Jadavpur, Kolkata, India
| | - Pradip Pattanayak
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, WB 741262, Mohanpur, India
| | - Arabinda Mallick
- Department of Chemistry, Kazi Nazrul University, Kalla Bypass More, WB 713340, Burdwan, India
| | - Pradipta Purkayastha
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, WB 741262, Mohanpur, India
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14
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Babar D, Garje SS. Nitrogen and Phosphorus Co-Doped Carbon Dots for Selective Detection of Nitro Explosives. ACS OMEGA 2020; 5:2710-2717. [PMID: 32095694 PMCID: PMC7033677 DOI: 10.1021/acsomega.9b03234] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 01/23/2020] [Indexed: 05/24/2023]
Abstract
In this work, a highly selective and sensitive method has been developed for the detection of trinitrophenol (TNP), which is a dangerous explosive. For this purpose, N and P co-doped carbon dots (NP-Cdots) have been used. Synthesis of N and P co-doped carbon dots has been carried out by a simple and quick method. X-ray photoelectron spectroscopy analysis was carried out to detect the doping of N and P. These carbon dots are insoluble in water (inNP-Cdots). These carbon dots were functionalized by treating them with conc. HNO3 so that they become water-soluble (wsNP-Cdots). These dots were characterized by different analytical techniques such as IR, UV-vis, and fluorescence spectroscopy. The as-prepared wsNP-Cdots have good fluorescence properties. The average diameter of wsNP-Cdots is found to be 5.7 nm with an interlayer spacing (d-spacing) of 0.16 nm. The as-prepared wsNP-Cdots are highly sensitive and selective toward TNP, as observed using a fluorescence quenching technique. The quenching constant for TNP is found to be very high (8.06 × 104 M-1), which indicates its high quenching ability. The limit of detection is found to be 23 μM.
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Affiliation(s)
- Dipak
Gorakh Babar
- Department of Chemistry, University
of Mumbai, Vidyanagari, Santacruz (E), Mumbai 400 098, India
| | - Shivram S. Garje
- Department of Chemistry, University
of Mumbai, Vidyanagari, Santacruz (E), Mumbai 400 098, India
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15
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Guria UN, Mahapatra AK, Ghosh AK, Bindal RC. Fluorescent chemosensor for lethal cesium detection using thin film membrane. SEP SCI TECHNOL 2019. [DOI: 10.1080/01496395.2019.1574304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Uday Narayan Guria
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
| | - Ajit Kumar Mahapatra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, India
| | - Asim Kumar Ghosh
- Membrane Development Section, ChEG, Bhabha Atomic Research Centre, Mumbai, India
| | - R. C. Bindal
- Membrane Development Section, ChEG, Bhabha Atomic Research Centre, Mumbai, India
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16
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Paul S, Karar M, Paul P, Mallick A, Majumdar T. Dual mode nitro explosive detection under crowded condition: Conceptual development of a sensing device. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.04.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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17
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Kasthuri S, Gawas P, Maji S, Veeraiah N, Venkatramaiah N. Selective Detection of Trinitrophenol by Amphiphilic Dimethylaminopyridine-Appended Zn(II)phthalocyanines at the Near-Infrared Region. ACS OMEGA 2019; 4:6218-6228. [PMID: 31459764 PMCID: PMC6648911 DOI: 10.1021/acsomega.8b02394] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 03/25/2019] [Indexed: 06/10/2023]
Abstract
Novel amphiphilic Zn(II)phthalocyanines (ZnPcs) peripherally substituted with four and eight dimethylaminopyridinium units (ZnPc1 and ZnPc2) were synthesized by cyclotetramerization of the corresponding phthalonitriles. The effect of aggregation and photophysical (fluorescence quantum yields and lifetimes) and photochemical (singlet oxygen generation and photodegradation under light irradiation) properties was investigated. The chemosensing ability of ZnPcs toward explosive nitroaromatic compounds was explored in aqueous medium. This study demonstrates that ZnPc1 and ZnPc2 show fluorescence quenching behavior upon interaction with different nitro analytes and show unprecedented selectivity toward 2,4,6-trinitrophenol with a limit of detection (LOD) of 0.7-1.1 ppm with a high quenching rate constant (K sv) of 1.6-2.02 × 105. The near-infrared (NIR) fluorescence in thin films was quenched efficiently because of the photoinduced electron-transfer process through strong intermolecular π-π and electrostatic interactions. The sensing process is highly reversible and free from the interference of other commonly encountered nitro analytes. Further, experiments were performed to demonstrate the use of ZnPcs as efficient heterogeneous photocatalysts in the reduction of nitro explosives. The smart dual performance of multicharged ZnPcs in aqueous media quantifies them as attractive candidates in developing sensor materials at the NIR region and to possibly convert the toxic explosives into useful scaffolds. These results provide an interesting perspective toward elaboration of stable fluorescent systems for the selective sensing behavior of nitro explosives and their facile heterogeneous catalytic behavior in the reduction reactions.
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Affiliation(s)
- S. Kasthuri
- Department
of Chemistry, SRM Institute of Science and
Technology (SRMIST), Chennai 603 203, India
| | - Pratiksha Gawas
- Department
of Chemistry, SRM Institute of Science and
Technology (SRMIST), Chennai 603 203, India
| | - Samarendra Maji
- Department
of Chemistry, SRM Institute of Science and
Technology (SRMIST), Chennai 603 203, India
| | - N. Veeraiah
- Department
of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur 522 510, Andhra Pradesh, India
| | - N. Venkatramaiah
- Department
of Chemistry, SRM Institute of Science and
Technology (SRMIST), Chennai 603 203, India
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18
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Sakthivel P, Sekar K, Singaravadivel S, Sivaraman G. Rhodamine‐Isonicotinic Hydrazide Analogue: A Selective Fluorescent Chemosensor for the Nanomolar Detection of Picric Acid in Aqueous Media. ChemistrySelect 2019. [DOI: 10.1002/slct.201804032] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Perumal Sakthivel
- Department of ChemistryAnna University - University College of Engineering Dindigul- 624622 India
| | - Karuppannan Sekar
- Department of ChemistryAnna University - University College of Engineering Dindigul- 624622 India
| | | | - Gandhi Sivaraman
- Department of ChemistryGandhigram Rural Institute-Deemed to be University Dindigul- 624302 India
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19
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Kundu BK, Pragti P, Reena R, Mobin SM, Mukhopadhyay S. Mechanistic and thermodynamic aspects of a pyrene-based fluorescent probe to detect picric acid. NEW J CHEM 2019. [DOI: 10.1039/c9nj02342a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Thermodynamic investigation of picric acid sensing using a pyrene-based fluorescent probe.
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Affiliation(s)
- Bidyut Kumar Kundu
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Pragti Pragti
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Reena Reena
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Shaikh M. Mobin
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Suman Mukhopadhyay
- Discipline of Chemistry
- School of Basic Sciences
- Indian Institute of Technology Indore
- Indore 453552
- India
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20
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Chakraborty G, Mandal SK. Design and Development of Fluorescent Sensors with Mixed Aromatic Bicyclic Fused Rings and Pyridyl Groups: Solid Mediated Selective Detection of 2,4,6-Trinitrophenol in Water. ACS OMEGA 2018; 3:3248-3256. [PMID: 31458581 PMCID: PMC6641284 DOI: 10.1021/acsomega.8b00080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 02/23/2018] [Indexed: 05/12/2023]
Abstract
For a strategic incorporation of both π-electron-rich moieties and Lewis basic moieties acting as hydrogen bonding recognition sites in the same molecule, two new fluorescent sensors, N,N'-bis(anthracen-9-ylmethyl)-N,N'-bis(pyridin-2-ylmethyl)butane-1,4-diamine (banthbpbn, 1) and N,N'-bis(naphthalen-1-ylmethyl)-N,N'-bis(pyridin-2-ylmethyl)butane-1,4-diamine (bnaphbpbn, 2), have been developed for the selective detection of highly explosive 2,4,6-trinitrophenol (TNP) in water. Each of the two identical ends of these sensors that are linked with a flexible tetra-methylene spacer contains a mixed aromatic bicyclic fused ring (anthracene or naphthalene) and a pyridyl group. These are synthesized via the simple reduced Schiff base chemistry, followed by the nucleophilic substitution reaction under basic conditions in high yields. Both 1 and 2 were characterized by Fourier transform infrared, UV-vis, and NMR (1H and 13C) spectroscopy, and high-resolution mass spectrometry. The bulk phase purity of 1 and 2 and their stability in water were confirmed by powder X-ray diffraction (PXRD). Utilizing the effect of solvents on their emission spectra as determined by fluorescence spectroscopy, spectral responses for 1 and 2 toward various nitro explosives were recorded to determine a detection limit of 0.6 and 1.6 ppm, respectively, for TNP in water via the "turn-off" quenching response. Also, the detailed mechanistic investigation for their mode of action through spectral overlap, lifetime measurements, Stern-Volmer plots, and density functional theory calculations reveals that resonance energy transfer and photoinduced electron transfer processes, and electrostatic interactions are the key aspects for the turn-off response toward TNP by 1 and 2. In addition, the selectivity for TNP has been found to be more in 1 compared to 2. Both exhibit good recyclability and stability after sensing experiments, which is confirmed by PXRD and field-emission scanning electron microscopy.
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21
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Sedgwick AC, Wu L, Han HH, Bull SD, He XP, James TD, Sessler JL, Tang BZ, Tian H, Yoon J. Excited-state intramolecular proton-transfer (ESIPT) based fluorescence sensors and imaging agents. Chem Soc Rev 2018; 47:8842-8880. [DOI: 10.1039/c8cs00185e] [Citation(s) in RCA: 690] [Impact Index Per Article: 115.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We review recent advances in the design and application of excited-state intramolecular proton-transfer (ESIPT) based fluorescent probes. These sensors and imaging agents (probes) are important in biology, physiology, pharmacology, and environmental science.
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Affiliation(s)
- Adam C. Sedgwick
- Department of Chemistry
- University of Bath
- Bath
- UK
- Department of Chemistry
| | - Luling Wu
- Department of Chemistry
- University of Bath
- Bath
- UK
| | - Hai-Hao Han
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering
- Feringa Nobel Prize Scientist Joint Research Center
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
| | | | - Xiao-Peng He
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering
- Feringa Nobel Prize Scientist Joint Research Center
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Tony D. James
- Department of Chemistry
- University of Bath
- Bath
- UK
- Department of Materials and Life Sciences
| | | | - Ben Zhong Tang
- Department of Chemistry
- The Hong Kong University of Science & Technology (HKUST)
- Clear Water Bay
- Kowloon
- China
| | - He Tian
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering
- Feringa Nobel Prize Scientist Joint Research Center
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Juyoung Yoon
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 120-750
- Korea
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22
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Zhang E, Ju P, Guo P, Hou X, Hou X, Lv H, Wang JJ, Zhang Y. A FRET-based fluorescent and colorimetric probe for the specific detection of picric acid. RSC Adv 2018; 8:31658-31665. [PMID: 35548203 PMCID: PMC9085897 DOI: 10.1039/c8ra05468a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/04/2018] [Indexed: 11/21/2022] Open
Abstract
Picric acid (PA) as an environmental pollutant and high explosive, has recently received considerable attention. In this paper, a novel fluorescent and colorimetric chemo-probe (L) for the highly selective and sensitive detection of picric acid has been revealed. The probe was facilely constructed using rhodamine B, ethylenediamine and 4-(9H-carbazol-9-yl)benzoyl chloride. Significant fluorescence changes based on an intramolecular fluorescence resonance energy transfer (FRET) effect followed by a distinct color change from colorless to pink were observed after addition of picric acid to the probe solution. Selectivity measurements revealed that the as-synthesized probe exhibited high selectivity toward PA in the presence or absence of other analytes. The experimental titration results suggested that the as-synthesized probe is an effective tool for detection of PA with a nanomolar scale detection limit (820 nM) and could also serve as a “naked-eye” indicator for PA detection. A FRET-based fluorescent and colorimetric chemo-sensor has been designed and synthesized for the selective and sensitive detection of picric acid.![]()
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Affiliation(s)
- Ensheng Zhang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Ping Ju
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Pu Guo
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Xiufang Hou
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Xueyan Hou
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Haiming Lv
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Ji-jiang Wang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Yuqi Zhang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
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23
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Halder S, Ghosh P, Hazra A, Banerjee P, Roy P. A quinoline-based compound for explosive 2,4,6-trinitrophenol sensing: experimental and DFT-D3 studies. NEW J CHEM 2018. [DOI: 10.1039/c8nj00817e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A quinoline-based compound, 2,5-dimethylbis(quinolin-2-ylmethylene)benzene-1,4-diamine (DQB), has been found to be a turn-off chemosensor for 2,4,6-trinitrophenol.
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Affiliation(s)
| | - Pritam Ghosh
- Surface Engineering & Tribology Group
- CSIR-Central Mechanical Engineering Research Institute
- Mahatma Gandhi Avenue
- Burdwan
- Durgapur 713209
| | - Ananta Hazra
- Department of Chemistry
- Jadavpur University
- Kolkata
- India
| | - Priyabrata Banerjee
- Surface Engineering & Tribology Group
- CSIR-Central Mechanical Engineering Research Institute
- Mahatma Gandhi Avenue
- Burdwan
- Durgapur 713209
| | - Partha Roy
- Department of Chemistry
- Jadavpur University
- Kolkata
- India
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24
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Naskar B, Bauzá A, Frontera A, Maiti DK, Das Mukhopadhyay C, Goswami S. A versatile chemosensor for the detection of Al3+ and picric acid (PA) in aqueous solution. Dalton Trans 2018; 47:15907-15916. [DOI: 10.1039/c8dt02289e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The selective detection of Al3+ and picric acid in water has been realized by means of a fluorescence spectroscopy-based chemosensor.
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Affiliation(s)
- Barnali Naskar
- Department of Chemistry
- University of Calcutta
- Kolkata
- India
| | - Antonio Bauzá
- Departament de Química
- Universitat de les IllesBalears
- 07122 Palma de Mallorca
- Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les IllesBalears
- 07122 Palma de Mallorca
- Spain
| | - Dilip K. Maiti
- Department of Chemistry
- University of Calcutta
- Kolkata
- India
| | - Chitrangada Das Mukhopadhyay
- Centre for Healthcare Science & Technology
- Indian Institute of Engineering Science and Technology
- Howrah 711103
- India
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25
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Ju P, Zhang E, Jiang L, Zhang Z, Hou X, Zhang Y, Yang H, Wang J. A novel microporous Tb-MOF fluorescent sensor for highly selective and sensitive detection of picric acid. RSC Adv 2018; 8:21671-21678. [PMID: 35541725 PMCID: PMC9081240 DOI: 10.1039/c8ra02602e] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/24/2018] [Indexed: 01/12/2023] Open
Abstract
A new three-dimensional metal–organic framework (MOF) sensor with molecular formula (C2H6NH2)2[Tb2(ptptc)2(DMF)(H2O)]·DMF·6H2O (complex 1) has been constructed from terphenyl-3,3′,5,5′-tetracarboxylic acid (H4ptptc) and terbium nitrate under solvothermal conditions. The structure of complex 1 was characterized by single-crystal X-ray diffraction analysis (XRD), elemental analysis, IR spectroscopy and thermogravimetric (TG) analysis, and the purity was further confirmed by powder X-ray diffraction (PXRD) analysis. XRD analysis reveals that complex 1 crystallizes in a triclinic system P1̄ space group and consists of a three-dimensional anionic network which has one-dimensional channels. Fluorescence titration experiments showed that complex 1 displayed real-time, highly selective and sensitive fluorescence quenching behavior towards picric acid with a nanomolar scale experimental detection limit (100 nM). Recycling titration experiments suggested that the as-synthesized probe has good reversibility and can be used for at least five cycles in fluorescence titration experiments without obvious fluorescence intensity reduction or framework structure destruction. Furthermore, the high selectivity and sensitivity as well as good recyclability of complex 1 make it a potential fluorescent sensor for picric acid. A new three-dimensional reusable Tb-MOF fluorescent sensor for the highly selective and sensitive detection of picric acid was reported.![]()
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Affiliation(s)
- Ping Ju
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Ensheng Zhang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Long Jiang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen University
- Guangzhou 510275
- P. R. China
| | - Ze Zhang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Xiangyang Hou
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Yuqi Zhang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Hua Yang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
| | - Jijiang Wang
- Laboratory of New Energy & New Function Materials
- Shaanxi Key Laboratory of Chemical Reaction Engineering
- College of Chemistry and Chemical Engineering
- Yan'an University
- Yan'an
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26
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Fu ZH, Wang YW, Peng Y. Two fluorescein-based chemosensors for the fast detection of 2,4,6-trinitrophenol (TNP) in water. Chem Commun (Camb) 2017; 53:10524-10527. [DOI: 10.1039/c7cc05966c] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Two fluorescein-based chemosensors have been developed for the rapid and selective fluorescence detection of 2,4,6-trinitrophenol (TNP) under excitation by visible light.
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Affiliation(s)
- Zhen-Hai Fu
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- People's Republic of China
- Key Laboratory of Salt Lakes Resources and Chemistry
| | - Ya-Wen Wang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- People's Republic of China
| | - Yu Peng
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou
- People's Republic of China
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