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Wang T, Lv M, Zhang Y, Gao Y, Cai Z, Zhang Y, Song J, Liu J, Yin H, Shang F. TDDFT Study on the ESIPT Properties of 2-(2'-Hydroxyphenyl)-Benzothiazole and Sensing Mechanism of a Derived Fluorescent Probe for Fluoride Ion. Molecules 2024; 29:1541. [PMID: 38611820 PMCID: PMC11013366 DOI: 10.3390/molecules29071541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
The level of fluoride ions (F-) in the human body is closely related to various pathological and physiological states, and the rapid detection of F- is important for studying physiological processes and the early diagnosis of diseases. In this study, the detailed sensing mechanism of a novel high-efficiency probe (PBT) based on 2-(2'-hydroxyphenyl)-benzothiazole derivatives towards F- has been fully investigated based on density functional theory (DFT) and time-dependent density functional theory (TDDFT) methods. F- attacks the O-P bond of PBT to cleavage the dimethylphosphinothionyl group, and the potential products were evaluated by Gibbs free energy and spectroscopic analyses, which ultimately identified the product as HBT-Enol1 with an intramolecular hydrogen bond. Bond parameters, infrared vibrational spectroscopy and charge analysis indicate that the hydrogen bond is enhanced at the excited state (S1), favoring excited state intramolecular proton transfer (ESIPT). The mild energy barrier further evidences the occurrence of ESIPT. Combined with frontier molecular orbital (FMO) analysis, the fluorescence quenching of PBT was attributed to the photoinduced electron transfer (PET) mechanism and the fluorescence turn-on mechanism of the product was attributed to the ESIPT process of HBT-Enol1.
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Affiliation(s)
- Tingting Wang
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China; (T.W.); (Y.Z.); (Y.G.); (Z.C.); (Y.Z.); (J.S.)
| | - Meiheng Lv
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China; (T.W.); (Y.Z.); (Y.G.); (Z.C.); (Y.Z.); (J.S.)
- Research Center of Advanced Biological Manufacture, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
| | - Yuhang Zhang
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China; (T.W.); (Y.Z.); (Y.G.); (Z.C.); (Y.Z.); (J.S.)
| | - Yue Gao
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China; (T.W.); (Y.Z.); (Y.G.); (Z.C.); (Y.Z.); (J.S.)
| | - Zexu Cai
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China; (T.W.); (Y.Z.); (Y.G.); (Z.C.); (Y.Z.); (J.S.)
| | - Yifan Zhang
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China; (T.W.); (Y.Z.); (Y.G.); (Z.C.); (Y.Z.); (J.S.)
| | - Jiaqi Song
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China; (T.W.); (Y.Z.); (Y.G.); (Z.C.); (Y.Z.); (J.S.)
| | - Jianyong Liu
- Research Center of Advanced Biological Manufacture, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
| | - Hang Yin
- Research Center of Advanced Biological Manufacture, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China;
| | - Fangjian Shang
- College of Aeronautical Engineering, Binzhou University, Binzhou 256603, China;
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Wu K, Kong F, Zhang J, Tang Y, Chen Y, Chao L, Nie L, Huang Z. Recent Progress in Single-Nucleotide Polymorphism Biosensors. BIOSENSORS 2023; 13:864. [PMID: 37754098 PMCID: PMC10527258 DOI: 10.3390/bios13090864] [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: 07/19/2023] [Revised: 08/23/2023] [Accepted: 08/26/2023] [Indexed: 09/28/2023]
Abstract
Single-nucleotide polymorphisms (SNPs), the most common form of genetic variation in the human genome, are the main cause of individual differences. Furthermore, such attractive genetic markers are emerging as important hallmarks in clinical diagnosis and treatment. A variety of destructive abnormalities, such as malignancy, cardiovascular disease, inherited metabolic disease, and autoimmune disease, are associated with single-nucleotide variants. Therefore, identification of SNPs is necessary for better understanding of the gene function and health of an individual. SNP detection with simple preparation and operational procedures, high affinity and specificity, and cost-effectiveness have been the key challenge for years. Although biosensing methods offer high specificity and sensitivity, as well, they suffer drawbacks, such as complicated designs, complicated optimization procedures, and the use of complicated chemistry designs and expensive reagents, as well as toxic chemical compounds, for signal detection and amplifications. This review aims to provide an overview on improvements for SNP biosensing based on fluorescent and electrochemical methods. Very recently, novel designs in each category have been presented in detail. Furthermore, detection limitations, advantages and disadvantages, and challenges have also been presented for each type.
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Affiliation(s)
| | | | | | | | | | | | - Libo Nie
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (K.W.); (F.K.); (J.Z.); (Y.T.); (Y.C.); (L.C.)
| | - Zhao Huang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (K.W.); (F.K.); (J.Z.); (Y.T.); (Y.C.); (L.C.)
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Wen J, Hua Q, Ding S, Sun A, Xia Y. Recent Advances in Fluorescent Probes for Zinc Ions Based on Various Response Mechanisms. Crit Rev Anal Chem 2023:1-32. [PMID: 37486769 DOI: 10.1080/10408347.2023.2238078] [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: 07/25/2023]
Abstract
Zinc is a vital metal element with extensive applications in various fields such as industry, metallurgy, agriculture, food, and healthcare. For living organisms, zinc ions are indispensable, and their deficiency can lead to physiological and metabolic abnormalities that cause multiple diseases. Hence, there is a significant need for selective recognition and effective detection of free zinc ions. As a probe method with high sensitivity, high selectivity, real-time monitoring, safety, harmlessness and ease of operation, fluorescent probes have been widely used in metal ion identification studies, and many convenient, low-cost and easy-to-operate fluorescent probes for Zn2+ detection have been developed. This article reviews the latest research advances in fluorescent chemosensors for Zn2+ detection from 2019 to 2023. In particular, sensors working through photo-induced electron transfer (PET), excited state intramolecular proton transfer (ESIPT), intramolecular charge transfer (ICT), fluorescence resonance energy transfer (FRET), chelation-enhanced fluorescence (CHEF), and aggregation-induced emission (AIE) mechanisms are described. We discuss the use of various recognition mechanisms in detecting zinc ions through specific cases, some of which have been validated through theoretical calculations.
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Affiliation(s)
- Jinrong Wen
- School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, China
| | - Qianying Hua
- School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, China
| | - Sha Ding
- School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, China
| | - Aokui Sun
- School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, China
| | - Yong Xia
- School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, China
- College of Chemistry and Chemical Engineering, Central South University, Changsha, China
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Zaleskaya-Hernik M, Dobrzycki Ł, Romański J. Interaction of Ions in Organic and Aqueous Media with an Ion-Pair Sensor Equipped with a BODIPY Reporter: An ON1-OFF-ON2-ON3 Fluorescent Assay. Int J Mol Sci 2023; 24:ijms24108536. [PMID: 37239885 DOI: 10.3390/ijms24108536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 04/29/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
Here, we present a ditopic ion-pair sensor, B1, containing the BODIPY reporter unit in its structure, which is shown to be able-thanks to the presence of two heterogeneous binding domains-to interact with anions in an enhanced manner in the presence of cations. This enables it to interact with salts even in 99% aqueous solutions, making B1 a good candidate in terms of visual salt detection in the aquatic environment. Receptor B1's ability to extract and release salt was applied in the transport of potassium chloride through a bulk liquid membrane. Working with a concentration of B1 in the organic phase and with the presence of a specific salt in an aqueous solution, an inverted transport experiment was also demonstrated. By varying the type and the amount of the anions added to B1, we were able to develop diverse optical responses, including a unique four-step ON1-OFF-ON2-ON3 output.
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Affiliation(s)
| | - Łukasz Dobrzycki
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Jan Romański
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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Zahid Nasim S, Sarfaraz S, Jan F, Yar M, Ur Rehaman A. Computational insights of excited state intramolecular proton transfer (ESIPT) based fluorescent detection and imaging of γ-glutamytranspeptidase activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122814. [PMID: 37201329 DOI: 10.1016/j.saa.2023.122814] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 04/15/2023] [Accepted: 04/29/2023] [Indexed: 05/20/2023]
Abstract
γ-Glutamytranspeptidase (GGT) is an important tumor biomarker that widely appears in the tumor cells. Therefore, accurate imaging and detection of GGT activity in live cells, serum and pathological cells grasp great importance for the diagnosis, management, and treatment of cancer. Herein, 2-(2-hydroxyl-phenyl)-6-chloro-4-(3H)-quinazolinone (HPQ) is considered as the fluorophore probe for the detection of GGT activity, which is known for the typical mechanism of excited-state intramolecular proton transfer (ESIPT). All the simulations adopted to evaluate the sensing mechanism were carried out via DFT and TDDFT calculations at CAM-B3LYP/TZVP level of theory. The emission properties of HPQ and HPQ-TD are thoroughly studied to understand the photoinduced electron transfer (PET) and excited state intramolecular proton transfer (ESIPT) process. The results reveal that the fluorescence quenching of HPQ (enol form) is assigned to the PET process, whereas the large Stokes shift in fluorescence emission of HPQ (keto form) is related with ESIPT mechanism. The obtained results are further cross validated by frontier molecular orbital (FMO) analysis, geometric analysis, and potential energy curve (PEC) scanning. Our calculations provide powerful evidence for the ESIPT based sensing mechanism of HPQ (keto-enol form) for GGT activity.
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Affiliation(s)
- Sayed Zahid Nasim
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Sehrish Sarfaraz
- Department of Chemistry, COMSATS University, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Faheem Jan
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China; School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, Liaoning, China.
| | - Muhammad Yar
- Department of Chemistry, COMSATS University, Abbottabad Campus, Abbottabad 22060, Pakistan.
| | - Attiq Ur Rehaman
- Department of Chemistry, COMSATS University, Abbottabad Campus, Abbottabad 22060, Pakistan
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Wen J, Xia Y, Ding S, Liu Y. Theoretical investigation of the Zn 2+ detection mechanism based on the quinoline derivative of the Schiff-base receptor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 287:122123. [PMID: 36423505 DOI: 10.1016/j.saa.2022.122123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/01/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
The sensing mechanism of the quinoline-derived Schiff base HL (concentrated from 8-hydroxyquinoline with 2,4-dihydroxybenzaldehyde) as a highly selective fluorescent probe for Zn2+ was investigated by theoretical calculations with DFT and TDDFT. The conformations of the HL molecule, its ketone form and its Zinc complex structure, were optimized in the ground and excited states. The systems have been studied in depth in terms of structural parameters, frontier molecular orbitals, absorption and fluorescence spectra as well as potential energy curves analysis and approximately density gradient analysis. The present theoretical calculations propose a different detection mechanism from that proposed experimentally. The theoretical results predict that the fluorescence quenching in HL is attributed to the excited state intramolecular proton transfer (ESIPT) rather than the photoinduced electron transfer (PET) of benzene to electrons. When Zn2+ is introduced, Zn2+ takes the place of the H atom, creating a complex that blocks the ESIPT reaction and restores fluorescence.
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Affiliation(s)
- Jinrong Wen
- School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Yong Xia
- School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
| | - Sha Ding
- School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Yuejun Liu
- School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
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7
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Wu K, He X, Wang J, Pan T, He R, Kong F, Cao Z, Ju F, Huang Z, Nie L. Recent progress of microfluidic chips in immunoassay. Front Bioeng Biotechnol 2022; 10:1112327. [PMID: 36619380 PMCID: PMC9816574 DOI: 10.3389/fbioe.2022.1112327] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022] Open
Abstract
Microfluidic chip technology is a technology platform that integrates basic operation units such as processing, separation, reaction and detection into microchannel chip to realize low consumption, fast and efficient analysis of samples. It has the characteristics of small volume need of samples and reagents, fast analysis, low cost, automation, portability, high throughout, and good compatibility with other techniques. In this review, the concept, preparation materials and fabrication technology of microfluidic chip are described. The applications of microfluidic chip in immunoassay, including fluorescent, chemiluminescent, surface-enhanced Raman spectroscopy (SERS), and electrochemical immunoassay are reviewed. Look into the future, the development of microfluidic chips lies in point-of-care testing and high throughput equipment, and there are still some challenges in the design and the integration of microfluidic chips, as well as the analysis of actual sample by microfluidic chips.
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Affiliation(s)
- Kaimin Wu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Xuliang He
- Zhuzhou People’s Hospital, Zhuzhou, China
| | - Jinglei Wang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Ting Pan
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Ran He
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Feizhi Kong
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Zhenmin Cao
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Feiye Ju
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Zhao Huang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China
| | - Libo Nie
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou, China,*Correspondence: Libo Nie,
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Ding S, Xia Y, Lin X, Sun A, Li X, Liu Y. A Theoretical Study of the Sensing Mechanism of a Schiff-Based Sensor for Fluoride. SENSORS 2022; 22:s22103958. [PMID: 35632367 PMCID: PMC9144756 DOI: 10.3390/s22103958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/16/2022] [Accepted: 05/20/2022] [Indexed: 12/07/2022]
Abstract
In the current work, we studied the sensing process of the sensor (E)-2-((quinolin-8ylimino) methyl) phenol (QP) for fluoride anion (F-) with a "turn on" fluorescent response by density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations. The proton transfer process and the twisted intramolecular charge transfer (TICT) process of QP have been explored by using potential energy curves as functions of the distance of N-H and dihedral angle C-N=C-C both in the ground and the excited states. According to the calculated results, the fluorescence quenching mechanism of QP and the fluorescent response for F- have been fully explored. These results indicate that the current calculations completely reproduce the experimental results and provide compelling evidence for the sensing mechanism of QP for F-.
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Affiliation(s)
- Sha Ding
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China; (S.D.); (Y.X.); (X.L.); (A.S.)
| | - Yong Xia
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China; (S.D.); (Y.X.); (X.L.); (A.S.)
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Xiaoqi Lin
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China; (S.D.); (Y.X.); (X.L.); (A.S.)
| | - Aokui Sun
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China; (S.D.); (Y.X.); (X.L.); (A.S.)
| | - Xianggang Li
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China; (S.D.); (Y.X.); (X.L.); (A.S.)
- Correspondence: (X.L.); (Y.L.); Tel.: +86-0731-22183055 (X.L.)
| | - Yuejun Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China; (S.D.); (Y.X.); (X.L.); (A.S.)
- Correspondence: (X.L.); (Y.L.); Tel.: +86-0731-22183055 (X.L.)
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9
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Fu CB, Qu JJ, Yu XF, Cheng JB, Li Q. Triple proton transfer after water rearrangement in (2,6-aza)Ind·(H2O)2. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Liu D, Li PY, Wang SJ, Gong B, Lu T, Li GY. Steric hindrance effect on the excited-state proton transfer process: TDDFT study on the fluorescent sensing mechanism of a fluoride sensor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 271:120872. [PMID: 35042045 DOI: 10.1016/j.saa.2022.120872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
An understanding of the excited-state process and the sensing mechanism for specific anions can be helpful for the design and synthesis of fluorescent sensors in analytical chemistry and biotechnology. Here, we theoretically investigated the fluorescent response mechanism of a reported acylhydrazone-based fluorescent sensor (Soft Matter, 2019, 15, 6690) for fluoride recognition using the time-dependent density functional theory approach. At the M06/TZVP/SCM level, the vertical excitation energies, which were calculated based on the ground state and first singlet-state geometries of the sensor molecule, agreed well with the experimental ultraviolet-visible and fluorescence spectra. Therefore, the time-dependent density functional theory method was considered reasonable and effective. According to the frontier orbital analysis and an excited-state potential energy scan, we proposed an excited-state proton transfer mechanism for the sensor-fluorine complex, where the steric hindrance leads to a high potential barrier. The excited-state proton transfer process facilitates sensor molecule deprotonation, alleviates its steric hindrance effect and expands its conjugated system. As a result, the fluorescence emission band of the sensor molecule was red-shifted significantly with the addition of fluoride anion. Based on this fluorescence difference, the sensor could be used for fluoride anion identification. This work provides a strategy to study sensor-analyte interactions in the excited state and offers an approach to tune the fluorescence emission wavelength of sensor molecules in anionic environments.
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Affiliation(s)
- Dong Liu
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Peng-Yuan Li
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Si-Jia Wang
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Bo Gong
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China
| | - Ting Lu
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China.
| | - Guang-Yue Li
- College of Chemical Engineering, North China University of Science and Technology, Tangshan 063210, PR China.
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11
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Kim G, Suh B, Kim C. A naked-eye sulfonamide-based colorimetric and fluorescent “turn-on” chemosensor for detecting fluoride. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132307] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Kediya S, Manhas A, Jha PC. Benzothiazole‐based chemosensor: a quick dip into its anion sensing mechanism. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Siddhi Kediya
- School of Applied Material Sciences Central University of Gujarat Gandhinagar India
| | - Anu Manhas
- Department of Chemistry Pandit Deendayal Energy University (formerly PDPU) Gandhinagar India
| | - Prakash C. Jha
- School of Applied Material Sciences Central University of Gujarat Gandhinagar India
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13
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Gil D, Suh B, Kim C. A New Reversible Colorimetric Chemosensor Based on Julolidine Moiety for Detecting F . J Fluoresc 2021; 31:1675-1682. [PMID: 34387807 DOI: 10.1007/s10895-021-02801-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/03/2021] [Indexed: 10/20/2022]
Abstract
We synthesized an original reversible colorimetric chemosensor PDJ ((E)-9-((2-(6-chloropyridazin-3-yl)hydrazono)methyl)-2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-8-ol) for the detection of F-. PDJ displayed a selective colorimetric detection to F- with a variation of color from colorless to yellow. Limit of detection of PDJ for F- was calculated as 12.1 µM. The binding mode of PDJ and F- turned out to be a 1:1 ratio using Job plot. Sensing process of F- by PDJ was demonstrated by 1H NMR titration and DFT calculation studies that suggested hydrogen bond interactions followed by deprotonation. Moreover, the practicality of PDJ was demonstrated via a reversible test with TFA (trifluoroacetic acid).
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Affiliation(s)
- Dongkyun Gil
- Department of Fine Chem, SNUT (Seoul National Univ. of Sci. and Tech.), Seoul, 01188, Korea
| | - Boeon Suh
- Department of Fine Chem, SNUT (Seoul National Univ. of Sci. and Tech.), Seoul, 01188, Korea
| | - Cheal Kim
- Department of Fine Chem, SNUT (Seoul National Univ. of Sci. and Tech.), Seoul, 01188, Korea.
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14
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Xia Y, Li M, Xu A, Zhang Z, Sun A, Ding S, Liu Y. Sensing mechanism of fluorogenic urea with fluoride in solvent media: A new fluorescence quenching mechanism. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 246:118992. [PMID: 33038861 DOI: 10.1016/j.saa.2020.118992] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/29/2020] [Accepted: 09/19/2020] [Indexed: 06/11/2023]
Abstract
The interaction of 1-Phenyl-3-(pyren-1-yl) urea (LH) and fluoride anion (F-) with a unique ON1-OFF-ON2 fluorescent response has been investigated by the density functional theory (DFT) and time-dependent density functional theory (TDDFT) calculations. The hydrogen-bonding dynamics and photophysical properties of the complex LH-F, as well as its isolated receptor LH and anion form L-H1, have been studied in detail. We demonstrate that the intermolecular hydrogen bond (N-H…F) of the complex LH-F is greatly enhanced in the electronically excited state. The nonradiative deactivation via electron transfer and internal conversion rather than excited-state intramolecular proton transfer (ESIPT) can be facilitated by the excited state hydrogen bond strengthening. The results have been cross-validated by molecular structure, electronic spectra, frontier molecular orbitals, and infrared spectra as well as hydrogen bond binding energy. These results indicate that the current calculations completely reproduce the experimental results and provide compelling evidence for the sensing mechanism of LH for F-.
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Affiliation(s)
- Yong Xia
- Hunan Key Laboratory of Biomass Fiber Functional Materials, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
| | - Mengyao Li
- Hunan Key Laboratory of Biomass Fiber Functional Materials, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Aixiang Xu
- School of Civil Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Zhe Zhang
- School of Civil Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Aokui Sun
- Hunan Key Laboratory of Biomass Fiber Functional Materials, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Sha Ding
- Hunan Key Laboratory of Biomass Fiber Functional Materials, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China; School of Civil Engineering, Hunan University of Technology, Zhuzhou 412007, China.
| | - Yuejun Liu
- Hunan Key Laboratory of Biomass Fiber Functional Materials, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
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Ding S, Xu A, Sun A, Xia Y, Liu Y. An Excited State Intramolecular Proton Transfer-Based Fluorescent Probe with a Large Stokes Shift for the Turn-on Detection of Cysteine: A Detailed Theoretical Exploration. ACS OMEGA 2020; 5:19695-19701. [PMID: 32803064 PMCID: PMC7424714 DOI: 10.1021/acsomega.0c02393] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/17/2020] [Indexed: 05/29/2023]
Abstract
DFT and TDDFT calculations are adopted to study the sensing mechanism of a turn-on-type cysteine fluorescent probe (2-(1-phenyl-imidazo[1,5-α]pyridine-3-yl)phenyl acrylate, denoted as MZC-AC). The photoinduced electron transfer (PET) process of MZC-AC and the excited state intramolecular proton transfer (ESIPT) process of MZC have been investigated in detail. We demonstrate that the fluorescence quenching of MZC-AC is ascribed to the PET mechanism and the large Stokes shift fluorescence emission of MZC is the result of the ESIPT mechanism. The results have been cross-validated by geometries, frontier molecular orbital analysis, and potential energy curve scanning. As a result, our calculations completely reproduce the experimental results and give powerful evidence for the sensing mechanism of MZC-AC for cysteine.
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Affiliation(s)
- Sha Ding
- School
of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, PR China
- Hunan
Key Laboratory of Biomass Fiber Functional Materials, Hunan University of Technology, Zhuzhou 412007, PR China
| | - Aixiang Xu
- School
of Civil Engineering, Hunan University of
Technology, Zhuzhou 412007, China
| | - Aokui Sun
- School
of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, PR China
| | - Yong Xia
- School
of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, PR China
- College
of Chemistry and Chemical Engineering, Central
South University, Changsha 410083, China
| | - Yuejun Liu
- School
of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, PR China
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