1
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Chourasia J, Tohora N, Sultana T, Mahato M, Maiti A, Ahamed S, Das SK. A pyrene-based chromo-fluorogenic probe for specific detection of sarin gas mimic, diethylchlorophosphate. LUMINESCENCE 2024; 39:e4731. [PMID: 38566570 DOI: 10.1002/bio.4731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 04/04/2024]
Abstract
Nerve agents are becoming serious issues for the healthy and sustainable environment of modern civilization. Therefore, its detection and degradation are of paramount importance to the scientific community. In the present contribution, we have introduced a chromo-fluorogenic pyrene-based probe, (E)-2-methoxy-3-(pyren-1-ylimino)-3,8a-dihydro-2H-chromen-4-ol (PMCO) to detect sarin stimulant diethylchlorophosphate (DCP) in solution and gaseous phases. On inserting DCP in PMCO solution, a visual colorimetric change from yellow to clear colourless in daylight and highly intensified blue fluorescence was observed instantly under a 365 nm portable UV lamp light. PMCO has outstanding selectivity and high sensitivity with a limit of detection of 1.32 μM in dimethyl sulfoxide (DMSO) medium and 77.5 nM in 20% H2O-DMSO. A handy strained paper strip-based experiment was demonstrated to recognize DCP in a mixture of similar toxic analytes. A dip-stick experiment was performed to identify DCP vapour, and may be used as an effective photonic tool. We also demonstrated real sample analysis utilizing different DCP-spiked water samples and validating DCP detection even in various types of soils such as sand, field, and mud. Therefore, this present study provides an effective chemosensor for instant and on-site detection of toxic nerve agents in dangerous circumstances.
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Affiliation(s)
- Jyoti Chourasia
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Najmin Tohora
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Tuhina Sultana
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Manas Mahato
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Arpita Maiti
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Sabbir Ahamed
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
| | - Sudhir Kumar Das
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, India
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2
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Mahato M, Sultana T, Maiti A, Ahamed S, Tohora N, Ghanta S, Das SK. Highly selective and sensitive chromogenic recognition of sarin gas mimicking diethylchlorophosphate. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1371-1382. [PMID: 38349024 DOI: 10.1039/d3ay02306k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
The high-level toxic effects of organophosphate (OP) nerve agents severely threaten national security and public health. Generating trustworthy, accurate methods for quickly identifying these poisonous chemicals is urgently necessary. In this study, we have presented an azine-based colorimetric sensor (HBD) for the highly sensitive and selective identification of poisonous sarin gas surrogate diethylchlorophosphate (DCP). Our introduced sensor shows a purple color in contact with DCP, which is fully reversible upon the addition of triethylamine (TEA). The detection limit of our sensor for the toxic nerve agent mimic DCP is in the μM range. We have fabricated a test kit to verify the capability of HBD for on-the-spot identification of DCP to execute its practical use. To prove that HBD is an effective chemosensor, dip-stick investigation was conducted to detect DCP in the vaporous stage in the presence of different OPs, inorganic phosphates (IPs), and many other deadly analytes. A cellphone-based display method was also undertaken for on-the-spot recognition and measurement of DCP in isolated regions.
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Affiliation(s)
- Manas Mahato
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India.
| | - Tuhina Sultana
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India.
| | - Arpita Maiti
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India.
| | - Sabbir Ahamed
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India.
| | - Najmin Tohora
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India.
| | - Susanta Ghanta
- Department of Chemistry, National Institute of Technology, Agartala, Barjala, Jirania, Tripura 799046, India
| | - Sudhir Kumar Das
- Department of Chemistry, University of North Bengal, Raja Rammohunpur, Darjeeling, West Bengal 734013, India.
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3
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Grimm LM, Setiadi J, Tkachenko B, Schreiner PR, Gilson MK, Biedermann F. The temperature-dependence of host-guest binding thermodynamics: experimental and simulation studies. Chem Sci 2023; 14:11818-11829. [PMID: 37920355 PMCID: PMC10619620 DOI: 10.1039/d3sc01975f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 09/24/2023] [Indexed: 11/04/2023] Open
Abstract
The thermodynamic parameters of host-guest binding can be used to describe, understand, and predict molecular recognition events in aqueous systems. However, interpreting binding thermodynamics remains challenging, even for these relatively simple molecules, as they are determined by both direct and solvent-mediated host-guest interactions. In this contribution, we focus on the contributions of water to binding by studying binding thermodynamics, both experimentally and computationally, for a series of nearly rigid, electrically neutral host-guest systems and report the temperature-dependent thermodynamic binding contributions ΔGb(T), ΔHb(T), ΔSb(T), and ΔCp,b. Combining isothermal titration calorimetry (ITC) measurements with molecular dynamics (MD) simulations, we provide insight into the binding forces at play for the macrocyclic hosts cucurbit[n]uril (CBn, n = 7-8) and β-cyclodextrin (β-CD) with a range of guest molecules. We find consistently negative changes in heat capacity on binding (ΔCp,b) for all systems studied herein - as well as for literature host-guest systems - indicating increased enthalpic driving forces for binding at higher temperatures. We ascribe these trends to solvation effects, as the solvent properties of water deteriorate as temperature rises. Unlike the entropic and enthalpic contributions to binding, with their differing signs and magnitudes for the classical and non-classical hydrophobic effect, heat capacity changes appear to be a unifying and more general feature of host-guest complex formation in water. This work has implications for understanding protein-ligand interactions and other complex systems in aqueous environments.
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Affiliation(s)
- Laura M Grimm
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Jeffry Setiadi
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego 9255 Pharmacy Lane La Jolla CA 92093 USA
| | - Boryslav Tkachenko
- Institute of Organic Chemistry, Justus Liebig University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
| | - Peter R Schreiner
- Institute of Organic Chemistry, Justus Liebig University Giessen Heinrich-Buff-Ring 17 35392 Giessen Germany
| | - Michael K Gilson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego 9255 Pharmacy Lane La Jolla CA 92093 USA
| | - Frank Biedermann
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz Platz 1 76344 Eggenstein-Leopoldshafen Germany
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4
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Sun JD, Liu Y, Zhao Z, Yu SB, Qi QY, Zhou W, Wang H, Hu K, Zhang DW, Li ZT. Host-guest binding of tetracationic cyclophanes to photodynamic agents inhibits posttreatment phototoxicity and maintains antitumour efficacy. RSC Med Chem 2023; 14:563-572. [PMID: 36970143 PMCID: PMC10034117 DOI: 10.1039/d2md00463a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/06/2023] [Indexed: 02/10/2023] Open
Abstract
In the past two decades, photodynamic therapy (PDT) has become an effective method for the treatment of cancer. However, the posttreatment residue of photodynamic agents (PDAs) causes long-term skin phototoxicity. Here, we apply naphthalene-derived, box-like tetracationic cyclophanes, named NpBoxes, to bind to clinically used porphyrin-based PDAs to alleviate their posttreatment phototoxicity by reducing their free content in skin tissues and 1O2 quantum yield. We show that one of the cyclophanes, 2,6-NpBox, could include the PDAs to efficiently suppress their photosensitivity for the generation of reactive oxygen species. A tumour-bearing mouse model study revealed that, when Photofrin, the most widely used PDA in clinic, was administrated at a dose corresponding to the clinical one, 2,6-NpBox of the same dose could significantly suppress its posttreatment phototoxicity on the skin induced by simulated sunlight irradiation, without imposing a negative influence on its PDT efficacy.
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Affiliation(s)
- Jian-Da Sun
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University 2205 Songhu Road Shanghai 200438 China
| | - Yamin Liu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University 2205 Songhu Road Shanghai 200438 China
| | - Zijian Zhao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University 2205 Songhu Road Shanghai 200438 China
| | - Shang-Bo Yu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Qiao-Yan Qi
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
| | - Wei Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University 2205 Songhu Road Shanghai 200438 China
| | - Hui Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University 2205 Songhu Road Shanghai 200438 China
| | - Ke Hu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University 2205 Songhu Road Shanghai 200438 China
| | - Dan-Wei Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University 2205 Songhu Road Shanghai 200438 China
| | - Zhan-Ting Li
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University 2205 Songhu Road Shanghai 200438 China
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 China
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5
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Ahamed S, Mahato M, Tohora N, Sultana T, Sahoo R, Ghanta S, Das SK. A PET and ESIPT-communicated ratiometric, turn-on chromo-fluorogenic sensor for rapid and sensitive detection of sarin gas mimic, diethylchlorophosphate. Talanta 2023; 258:124448. [PMID: 36940571 DOI: 10.1016/j.talanta.2023.124448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023]
Abstract
Fast and precise identification of toxic G-series nerve agents in the solution and vapor phase is urgently needed to save human beings from unwanted wars and terrorist attacks, which is challenging to execute practically. In this article, we have designed and synthesized a sensitive and selective phthalimide-based chromo-fluorogenic sensor, DHAI, by a simple condensation process that shows ratiometric and turns on chromo-fluorogenic behavior towards Sarin gas mimic diethylchlorophosphate (DCP) in liquid and vapor phases, respectively. A colorimetric change, from yellow to colorless, is observed in the DHAI solution due to the introduction of DCP in daylight. A remarkable cyan color photoluminescence enhancement is noticed in the presence of DCP in the DHAI solution, which is observable to the naked under a portable 365 nm UV lamp. The mechanistic aspects of the detection of DCP by employing DHAI have been revealed by time-resolved photoluminescence decay analysis and 1H NMR titration investigation. Our probe DHAI exhibits linear photoluminescence enhancement from 0 to 500 μM with a detection limit of nanomolar range from non-aqueous to semi-aqueous media. For practical utility, a DHAI-stained test kit employing Whatman-41 filter paper has been fabricated and used as a portable and displayable photonic device for on-site detection of Sarin gas surrogate, DCP. Also, a dip-stick experiment has been demonstrated to identify the vapor of Sarin gas mimics DCP colorimetrically and fluorometrically. The concentrations of DCP in various water samples have been evaluated with the help of a standard fluorescence curve for real sample analysis.
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Affiliation(s)
- Sabbir Ahamed
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India
| | - Manas Mahato
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India
| | - Najmin Tohora
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India
| | - Tuhina Sultana
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India
| | - Rajkumar Sahoo
- Department of Chemistry, Indian Institute of Technology, Kharagpur, 721302, India
| | - Susanta Ghanta
- Department of Chemistry, National Institute of Technology, Agartala, Tripura, 799046, India
| | - Sudhir Kumar Das
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734013, India.
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6
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McCann JJ, Pike DH, Brown MC, Crouse DT, Nanda V, Koder RL. Computational design of a sensitive, selective phase-changing sensor protein for the VX nerve agent. SCIENCE ADVANCES 2022; 8:eabh3421. [PMID: 35857443 PMCID: PMC9258810 DOI: 10.1126/sciadv.abh3421] [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: 03/02/2021] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
The VX nerve agent is one of the deadliest chemical warfare agents. Specific, sensitive, real-time detection methods for this neurotoxin have not been reported. The creation of proteins that use biological recognition to fulfill these requirements using directed evolution or library screening methods has been hampered because its toxicity makes laboratory experimentation extraordinarily expensive. A pair of VX-binding proteins were designed using a supercharged scaffold that couples a large-scale phase change from unstructured to folded upon ligand binding, enabling fully internal binding sites that present the maximum surface area possible for high affinity and specificity in target recognition. Binding site residues were chosen using a new distributed evolutionary algorithm implementation in protCAD. Both designs detect VX at parts per billion concentrations with high specificity. Computational design of fully buried molecular recognition sites, in combination with supercharged phase-changing chassis proteins, enables the ready development of a new generation of small-molecule biosensors.
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Affiliation(s)
- James J. McCann
- Department of Physics, The City College of New York, New York, NY 10031, USA
| | - Douglas H. Pike
- Center for Advanced Biotechnology and Medicine and the Department of Biochemistry and Molecular Biology, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Mia C. Brown
- Department of Physics, The City College of New York, New York, NY 10031, USA
| | - David T. Crouse
- Department of Electrical and Computer Engineering, Clarkson University, Potsdam, NY 13699, USA
| | - Vikas Nanda
- Center for Advanced Biotechnology and Medicine and the Department of Biochemistry and Molecular Biology, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Ronald L. Koder
- Department of Physics, The City College of New York, New York, NY 10031, USA
- Graduate Programs of Physics, Biology, Chemistry, and Biochemistry, The Graduate Center of CUNY, New York, NY 10016, USA
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7
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Joining a host-guest platform and a light-emission motif: Pyrazinamide-calixarene hybrids. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Wang X, Wang X, Feng R, Fu T, Zhang J, Sun X. Recent advances of chemosensors for nerve agents. Chem Asian J 2022; 17:e202200284. [DOI: 10.1002/asia.202200284] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 05/16/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Xiao Wang
- Shaanxi University of Science and Technology Xi\'an Campus: Shaanxi University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Xuechuan Wang
- Shaanxi University of Science and Technology Xi\'an Campus: Shaanxi University of Science and Technology College of Chemistry and Chemical Engineering CHINA
| | - Rong Feng
- Xi'an Jiaotong University School of Life Science and Technology CHINA
| | - Tao Fu
- Xi'an Jiaotong University School of Life Science and Technology CHINA
| | - Jie Zhang
- Fourth Military Medical University: Air Force Medical University Institute of Preventive medicine CHINA
| | - Xiaolong Sun
- Xi'an Jiaotong University School of life science and technology 28, Xianning West Road, Xi'an, Shaanxi 710049 XiAn CHINA
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9
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Zhou S, Li W, Zhao Q, Dong H, Wang Y, Lu F, Zhao J, Liu S, Chen H, Wang L, Liu W, Zhang M, Chen S. Detoxification of the Toxic Sulfur Mustard Simulant by a Supramolecular Antidote in Vitro and in Vivo. ACS APPLIED MATERIALS & INTERFACES 2021; 13:58291-58300. [PMID: 34846119 DOI: 10.1021/acsami.1c15890] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Although great potential hazards and threats still occur from sulfur mustard, there are no specific medicine or therapy for the intoxication of sulfur mustard. Herein, we have demonstrated a supramolecular approach for the detoxification of the sulfur mustard simulant CEES (4) in vitro and in vivo by carboxylatopillar[5]arene potassium salts (CP[5]AK 1) efficiently based on host-guest interactions. The encapsulation of CEES (4) by the cavity of the pillar[5]arene 2 is driven by C-H···π interactions between CEES (4) and the electron-rich cavity of pillar[5]arene 2, which was investigated by 1H NMR titration, density functional theory studies, and the independent gradient model studies. CEES (4) is degradated to the reactive sulfonium salts quickly in aqueous media, resulting in the alkylation of DNA and proteins. The sulfonium salts can be encapsulated by CP[5]AK 1 efficiently, which accelerates the degradation of the sulfonium salts about 14 times. The cell and animal experiments indicated that the bioactivities of the sulfonium salts are inhibited with the formation of stable host-guest complexes, and CP[5]AK 1 has a good therapeutic effect on the damages caused by CEES (4) at either pre- or post-treatments. Due to the low cytotoxicity and good therapeutic effect, the anionic pillar[5]arenes are expected to be developed as specific antidotes against sulfur mustard (HD).
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Affiliation(s)
- Siyuan Zhou
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Wangzi Li
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Qi Zhao
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Hongqiang Dong
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Yueqi Wang
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Feihong Lu
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Jiahao Zhao
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Shanshan Liu
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Hong Chen
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lu Wang
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
| | - Wei Liu
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Mingchang Zhang
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shigui Chen
- The Institute for Advanced Studies, Wuhan University, 299 Bayi Road, Wuhan, Hubei 430072, China
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10
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Göbel D, Rusch P, Duvinage D, Stauch T, Bigall NC, Nachtsheim BJ. Substitution Effect on 2-(Oxazolinyl)-phenols and 1,2,5-Chalcogenadiazole -Annulated Derivatives: Emission-Color-Tunable, Minimalistic Excited-State Intramolecular Proton Transfer (ESIPT)-Based Luminophores. J Org Chem 2021; 86:14333-14355. [PMID: 34581564 DOI: 10.1021/acs.joc.1c00846] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Minimalistic 2-(oxazolinyl)-phenols substituted with different electron-donating and -withdrawing groups as well as 1,2,5-chalcogenadiazole-annulated derivatives thereof were synthesized and investigated in regard to their emission behavior in solution as well as in the solid state. Depending on the nature of the incorporated substituent and its position, emission efficiencies were increased or diminished, resulting in AIE or ACQ characteristics. Single-crystal analysis revealed J- and H-type packing motifs and a so-far undescribed isolation of ESIPT-based fluorophores in the keto form.
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Affiliation(s)
- Dominik Göbel
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Pascal Rusch
- Leibniz Universität Hannover, Institute of Physical Chemistry and Electrochemistry, Callinstraße 3a, D-30167 Hannover, Germany.,Cluster of Excellence PhoenixD (Photonics, Optics, and Engineering - Innovation Across Disciplines), D-30167 Hannover, Germany
| | - Daniel Duvinage
- Institute for Inorganic and Crystallographic Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Tim Stauch
- Institute for Physical and Theoretical Chemistry, University of Bremen, Leobener Straße NW2, D-28359 Bremen, Germany.,Bremen Center for Computational Materials Science, University of Bremen, Am Fallturm 1, D-28359 Bremen, Germany.,MAPEX Center for Materials and Processes, University of Bremen, Bibliothekstraße 1, D-28359 Bremen, Germany
| | - Nadja-C Bigall
- Leibniz Universität Hannover, Institute of Physical Chemistry and Electrochemistry, Callinstraße 3a, D-30167 Hannover, Germany.,Cluster of Excellence PhoenixD (Photonics, Optics, and Engineering - Innovation Across Disciplines), D-30167 Hannover, Germany
| | - Boris J Nachtsheim
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
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11
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Finnegan TJ, Gunawardana VWL, Badjić JD. Molecular Recognition of Nerve Agents and Their Organophosphorus Surrogates: Toward Supramolecular Scavengers and Catalysts. Chemistry 2021; 27:13280-13305. [PMID: 34185362 PMCID: PMC8453132 DOI: 10.1002/chem.202101532] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Indexed: 12/19/2022]
Abstract
Nerve agents are tetrahedral organophosphorus compounds (OPs) that were developed in the last century to irreversibly inhibit acetylcholinesterase (AChE) and therefore impede neurological signaling in living organisms. Exposure to OPs leads to a rapid development of symptoms from excessive salivation, nasal congestion and chest pain to convulsion and asphyxiation which if left untreated may lead to death. These potent toxins are prepared on a large scale from inexpensive staring materials, making it feasible for terrorist groups or states to use them against military and civilians. The existing antidotes provide limited protection and are difficult to apply to a large number of affected individuals. While new prophylactics are currently being developed, there is still need for therapeutics capable of both preventing and reversing the effects of OP poisoning. In this review, we describe how the science of molecular recognition can expand the pallet of tools for rapid and safe sequestration of nerve agents.
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Affiliation(s)
- Tyler J Finnegan
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH, USA
| | | | - Jovica D Badjić
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, OH, USA
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12
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13
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Liu P, Wang H, Zeng H, Hong X, Huang F. A [1 5]paracyclophenone and its fluorenone-containing derivatives: syntheses and binding to nerve agent mimics via aryl-CH hydrogen bonding interactions. Org Chem Front 2021. [DOI: 10.1039/d0qo00456a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A [15]paracyclophenone and its fluorenone-containing derivatives were synthesized. The novel macrocyclic host I binds nerve agent mimics through the ‘non-traditional’ aryl-CH hydrogen bonding interactions.
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Affiliation(s)
- Peiren Liu
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High- Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
| | - Hongliang Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Hong Zeng
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High- Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
| | - Xin Hong
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering
- Center for Chemistry of High- Performance & Novel Materials
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
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14
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Li B, Li S, Wang B, Meng Z, Wang Y, Meng Q, Li C. Capture of Sulfur Mustard by Pillar[5]arene: From Host-Guest Complexation to Efficient Adsorption Using Nonporous Adaptive Crystals. iScience 2020; 23:101443. [PMID: 32829284 PMCID: PMC7452326 DOI: 10.1016/j.isci.2020.101443] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/17/2020] [Accepted: 08/05/2020] [Indexed: 12/23/2022] Open
Abstract
Sulfur mustard (SM) has been the most frequently used chemical warfare agent. Here, we present the efficient containment of SM and its simulants by per-ethylated pillar[5]arene (EtP5). EtP5 exhibited strong binding abilities toward SM and its simulants not only in solution but also in the solid state. The association constant (Ka) between SM and EtP5 was determined as (6.2 ± 0.6) × 103 M-1 in o-xylene-d10. Single crystal structure of SM@EtP5 showed that a 1:1 inclusion complex was formed, which was driven by multiple C-H···π/Cl/S and S···π interactions. In addition, activated crystal materials of EtP5 (EtP5α) could effectively adsorb SM simulants at solid-vapor phase; powder X-ray diffraction patterns and host-guest crystal structures indicated that the uptake process triggered a solid-state structural transformation. More interestingly, the captured guest molecules could be stably contained in EtP5α for at least 6 months in air at room temperature.
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Affiliation(s)
- Bin Li
- College of Science, Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai 200444, P. R. China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Shuo Li
- College of Science, Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai 200444, P. R. China
| | - Bin Wang
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Zhao Meng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Yongan Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Qingbin Meng
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, P. R. China
| | - Chunju Li
- College of Science, Center for Supramolecular Chemistry and Catalysis, Shanghai University, Shanghai 200444, P. R. China
- Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education, Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
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15
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Hu P, Cui H, Huang W, Guo W. Overview of the Synthesis and Structure of Calix[n]quinones (n=4, 6, 8). Chem Asian J 2020; 15:2952-2959. [PMID: 32783344 DOI: 10.1002/asia.202000791] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/31/2020] [Indexed: 01/19/2023]
Abstract
Calix[n]quinones, a class of cyclic oligomers composed of p-benzoquinone structures connected by methylene, have multi-conjugated carbonyl structures and adjustable cavities, which make their synthesis extremely attractive. In this minireview, synthetic methods of calix[n]quinones and recent synthetic experience of our group are summarized. The merits and demerits of various synthetic methods are briefly reviewed as well. When synthesizing calix[n]quinone (n≥6) with a larger ring, the reduction-oxidation method is considered to be the most recommended.
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Affiliation(s)
- Pandeng Hu
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Huamin Cui
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Weiwei Huang
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Wenfeng Guo
- School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
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16
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Andrae B, Bauer D, Gaß P, Koller M, Worek F, Kubik S. Influence of cyclic and acyclic cucurbiturils on the degradation pathways of the chemical warfare agent VX. Org Biomol Chem 2020; 18:5218-5227. [PMID: 32602497 DOI: 10.1039/d0ob01167c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The highly toxic nerve agent VX is a methylphosphonothioate that degrades via three pathways in aqueous solution, namely through the hydrolysis of the P-O or P-S bonds, or the cleavage of the C-S bond at the 2-aminoethyl residue. In the latter case, an aziridinium ion and a phosphonothioate is formed. Here it is shown that acyclic or cyclic cucurbiturils inhibit these reactions in phosphate buffer at physiological pH and thus stabilise the nerve agent. When using unbuffered basic solutions as the reaction medium, however, in which the P-S or P-O bonds are normally hydrolysed preferentially, cucurbiturils turned out to strongly shift VX degradation towards the cleavage of the C-S bond. Cucurbit[7]uril, in particular, has a so pronounced effect under suitable conditions that it almost completely suppresses the formation of products resulting from the other degradation pathways. Investigations involving VX analogues in combination with computational methods suggest that one reason for the reaction control exerted by the cucurbiturils is the preorganisation of VX for aziridinium ion formation. In addition, cucurbit[7]uril also lowers the transition state of the reaction by stabilising the positive charge developing on the way to the product. Cucurbiturils thus have a marked effect on the reactivity of a highly toxic nerve agent, which potentially allows using them for decontamination purposes.
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Affiliation(s)
- Beatrice Andrae
- Technische Universität Kaiserslautern, Fachbereich Chemie - Organische Chemie, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany.
| | - Daniel Bauer
- Technische Universität Kaiserslautern, Fachbereich Chemie - Organische Chemie, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany.
| | - Patrick Gaß
- Technische Universität Kaiserslautern, Fachbereich Chemie - Organische Chemie, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany.
| | - Marianne Koller
- Institut für Pharmakologie und Toxikologie der Bundeswehr, Neuherbergstraße 11, 80937 München, Germany
| | - Franz Worek
- Institut für Pharmakologie und Toxikologie der Bundeswehr, Neuherbergstraße 11, 80937 München, Germany
| | - Stefan Kubik
- Technische Universität Kaiserslautern, Fachbereich Chemie - Organische Chemie, Erwin-Schrödinger-Straße, 67663 Kaiserslautern, Germany.
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17
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Gorbunov A, Iskandarova A, Puchnin K, Nenajdenko V, Kovalev V, Vatsouro I. A route to virtually unlimited functionalization of water-soluble p-sulfonatocalix[4]arenes. Chem Commun (Camb) 2020; 56:4122-4125. [PMID: 32166302 DOI: 10.1039/d0cc01196g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The functionality of p-sulfonatocalix[4]arenes can be easily extended using the propargylation/CuAAC reaction sequence, which allows the introduction of up to four substituted triazole units to the narrow rims of the macrocycles while maintaining their cone shapes and water solubility and, thus, biomedical applicability.
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Affiliation(s)
- Alexander Gorbunov
- Department of Chemistry, M. V. Lomonosov Moscow State University, Lenin's Hills 1, 119991 Moscow, Russia.
| | - Anna Iskandarova
- Department of Chemistry, M. V. Lomonosov Moscow State University, Lenin's Hills 1, 119991 Moscow, Russia.
| | - Kirill Puchnin
- Department of Chemistry, M. V. Lomonosov Moscow State University, Lenin's Hills 1, 119991 Moscow, Russia.
| | - Valentine Nenajdenko
- Department of Chemistry, M. V. Lomonosov Moscow State University, Lenin's Hills 1, 119991 Moscow, Russia.
| | - Vladimir Kovalev
- Department of Chemistry, M. V. Lomonosov Moscow State University, Lenin's Hills 1, 119991 Moscow, Russia.
| | - Ivan Vatsouro
- Department of Chemistry, M. V. Lomonosov Moscow State University, Lenin's Hills 1, 119991 Moscow, Russia.
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18
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Annisa TN, Jung SH, Gupta M, Bae JY, Park JM, Lee HI. A Reusable Polymeric Film for the Alternating Colorimetric Detection of a Nerve Agent Mimic and Ammonia Vapor with Sub-Parts-per-Million Sensitivity. ACS APPLIED MATERIALS & INTERFACES 2020; 12:11055-11062. [PMID: 32046484 DOI: 10.1021/acsami.0c00042] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Thin polymeric films were developed for the vapor-phase sequential colorimetric detection of a nerve agent mimic and ammonia with high sensitivity. N-(4-Benzoylphenyl)acrylamide (BPAm), N,N-dimethylacrylamide (DMA), and (E)-2-(methyl(4-(pyridine-4yldiazenyl)phenyl)amino)ethyl acrylate (MPDEA, M1) were copolymerized via free radical polymerization (FRP) to yield p(BPAm-co-DMA-co-MPDEA), hereafter referred to as P1. P1 exhibits selective sensing properties toward diethyl chlorophosphate (DCP), a nerve agent mimic, in pure aqueous media. Upon the addition of DCP, the pyridine groups of P1 were quaternized with DCP, accompanied by a color change from yellow to pink due to the enhancement of the intramolecular charge transfer (ICT) effect. In situ generated quaternized P1, hereafter referred to as P2, after DCP sensing was used to selectively detect ammonia via dequaternization in an aqueous medium. Ammonia detection was indicated by a color change in the solution from pink back to yellow. A surface-immobilized P1 film was prepared and employed for the vapor-phase detection of DCP, demonstrating that an amount of as low as 2 ppm was detectable. Ammonia vapor was also successfully detected by the P2 film via the ammonia-triggered removal of the quaternized phosphates. Alternating exposure of the film to DCP and ammonia resulted in the corresponding color changes, thereby demonstrating the reversibility of the system. The reusability of the polymeric film for detecting DCP and ammonia in the vapor phase was confirmed by performing four sequential colorimetric detection cycles.
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Affiliation(s)
- Tiara Nur Annisa
- Department of Chemistry, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Seo-Hyun Jung
- Department of Chemistry, University of Ulsan, Ulsan 680-749, Republic of Korea
- Center for green fine chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, Republic of Korea
| | - Moumita Gupta
- Department of Chemistry, University of Ulsan, Ulsan 680-749, Republic of Korea
| | - Ja Young Bae
- Center for green fine chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, Republic of Korea
| | - Jong Mok Park
- Center for green fine chemicals, Korea Research Institute of Chemical Technology, Ulsan 44412, Republic of Korea
| | - Hyung-Il Lee
- Department of Chemistry, University of Ulsan, Ulsan 680-749, Republic of Korea
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19
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Li X, Kleinstreuer NC, Fourches D. Hierarchical Quantitative Structure–Activity Relationship Modeling Approach for Integrating Binary, Multiclass, and Regression Models of Acute Oral Systemic Toxicity. Chem Res Toxicol 2020; 33:353-366. [DOI: 10.1021/acs.chemrestox.9b00259] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xinhao Li
- Department of Chemistry, Bioinformatics Research Center, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Nicole C. Kleinstreuer
- Division of Intramural Research/Biostatistics and Computational Biology Branch, NIEHS, Research Triangle
Park, Durham, North Carolina 27709, United States
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, NIEHS, Research Triangle Park, Durham, North Carolina 27709, United States
| | - Denis Fourches
- Department of Chemistry, Bioinformatics Research Center, North Carolina State University, Raleigh, North Carolina 27695, United States
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20
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Yu G, Chen X. Host-Guest Chemistry in Supramolecular Theranostics. Theranostics 2019; 9:3041-3074. [PMID: 31244941 PMCID: PMC6567976 DOI: 10.7150/thno.31653] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/24/2019] [Indexed: 12/12/2022] Open
Abstract
Macrocyclic hosts, such as cyclodextrins, calixarenes, cucurbiturils, and pillararenes, exhibit unparalleled advantages in disease diagnosis and therapy over the past years by fully taking advantage of their host-guest molecular recognitions. The dynamic nature of the non-covalent interactions and selective host-guest complexation endow the resultant nanomaterials with intriguing properties, holding promising potentials in theranostic fields. Interestingly, the differences in microenvironment between the abnormal and normal cells/tissues can be employed as the stimuli to modulate the host-guest interactions, realizing the purpose of precise diagnosis and specific delivery of drugs to lesion sites. In this review, we summarize the progress of supramolecular theranostics on the basis of host-guest chemistry benefiting from their fantastic topological structures and outstanding supramolecular chemistry. These state-of-the-art examples provide new methodologies to overcome the obstacles faced by the traditional theranostic systems, promoting their clinical translations.
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Affiliation(s)
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, Maryland 20892, United States
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21
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Cheng HB, Zhang YM, Liu Y, Yoon J. Turn-On Supramolecular Host-Guest Nanosystems as Theranostics for Cancer. Chem 2019. [DOI: 10.1016/j.chempr.2018.12.024] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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22
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Border SE, Pavlović RZ, Zhiquan L, Gunther MJ, Wang H, Cui H, Badjić JD. Photo-induced formation of organic nanoparticles possessing enhanced affinities for complexing nerve agent mimics. Chem Commun (Camb) 2019; 55:1987-1990. [DOI: 10.1039/c8cc08938h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Organic nanoparticles, composed of molecular baskets, could act as nanocarriers for selective “mopping” of toxic CWAs or pesticides, after being assembled by a light stimulus.
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Affiliation(s)
- Sarah E. Border
- Department of Chemistry & Biochemistry
- The Ohio State University
- 43210 Columbus
- USA
| | - Radoslav Z. Pavlović
- Department of Chemistry & Biochemistry
- The Ohio State University
- 43210 Columbus
- USA
| | - Lei Zhiquan
- Department of Chemistry & Biochemistry
- The Ohio State University
- 43210 Columbus
- USA
| | - Michael J. Gunther
- Department of Chemistry & Biochemistry
- The Ohio State University
- 43210 Columbus
- USA
| | - Han Wang
- Department of Chemical and Biomolecular Engineering
- The Johns Hopkins University
- 21218 Baltimore
- USA
| | - Honggang Cui
- Department of Chemical and Biomolecular Engineering
- The Johns Hopkins University
- 21218 Baltimore
- USA
| | - Jovica D. Badjić
- Department of Chemistry & Biochemistry
- The Ohio State University
- 43210 Columbus
- USA
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23
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Liu WE, Chen Z, Yang LP, Au-Yeung HY, Jiang W. Molecular recognition of organophosphorus compounds in water and inhibition of their toxicity to acetylcholinesterase. Chem Commun (Camb) 2019; 55:9797-9800. [DOI: 10.1039/c9cc04603h] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
endo-Functionalized molecular tubes are able to recognize toxic organophosphorus compounds in water. They can be used as a fluorescent sensor and as an inhibitor to reduce the toxicity of paraoxon to acetylcholinesterase.
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Affiliation(s)
- Wei-Er Liu
- Department of Chemistry
- The University of Hong Kong
- China
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
| | - Zhao Chen
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- China
| | - Liu-Pan Yang
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- China
| | | | - Wei Jiang
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen
- China
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24
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Gruber T. Synthetic Receptors for the Recognition and Discrimination of Post-Translationally Methylated Lysines. Chembiochem 2018; 19:2324-2340. [DOI: 10.1002/cbic.201800398] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Tobias Gruber
- School of Pharmacy; University of Lincoln; Joseph Banks Laboratories; Green Lane Lincoln LN6 7DL UK
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25
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Beatty MA, Busmann JA, Fagen NG, Garnett GAE, Hof F. A clip-like host that undergoes self-assembly and competitive guest-induced disassembly in water. Supramol Chem 2018. [DOI: 10.1080/10610278.2018.1494275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Meagan A. Beatty
- Department of Chemistry, University of Victoria, Victoria, Canada
| | - Jil A. Busmann
- Department of Chemistry, University of Victoria, Victoria, Canada
| | - Noah G. Fagen
- Department of Chemistry, University of Victoria, Victoria, Canada
| | | | - Fraser Hof
- Department of Chemistry, University of Victoria, Victoria, Canada
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26
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Camacho-Mendoza RL, Aquino-Torres E, Cordero-Pensado V, Cruz-Borbolla J, Alvarado-Rodríguez JG, Thangarasu P, Gómez-Castro CZ. A new computational model for the prediction of toxicity of phosphonate derivatives using QSPR. Mol Divers 2018. [PMID: 29532429 DOI: 10.1007/s11030-018-9819-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Structural and electronic properties of a series of 25 phosphonate derivatives were analyzed applying density functional theory, with the exchange-correlation functional PBEPBE in combination with the 6-311++G** basis set for all atoms. The chemical reactivity of these derivatives has been interpreted using quantum descriptors such as frontier molecular orbitals (HOMO, LUMO), Hirshfeld charges, molecular electrostatic potential, and the dual descriptor [[Formula: see text]]. These descriptors are directly related to experimental median lethal dose ([Formula: see text], expressed as its decimal logarithm [[Formula: see text]([Formula: see text]] through a multiple linear regression equation. The proposed model predicts the toxicity of phosphonates in function of the volume (V), the load of the most electronegative atom of the molecule (q), and the eigenvalue of the molecular orbital HOMO ([Formula: see text]. The obtained values in the internal validation of the model are: [Formula: see text]%, [Formula: see text]%, [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], and [Formula: see text]%. The toxicity of nine phosphonate derivatives used as test molecules was adequately predicted by the model. The theoretical results indicate that the oxygen atom of the O=P group plays an important role in the interaction mechanism between the phosphonate and the acetylcholinesterase enzyme, inhibiting the removal of the proton of the ser-200 residue by the his-440 residue.
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Affiliation(s)
- Rosa L Camacho-Mendoza
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Ciudad del Conocimiento, km 4.5 Carretera Pachuca-Tulancingo, C.P. 42184, Mineral de la Reforma Hidalgo, Mexico
| | - Eliazar Aquino-Torres
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Ciudad del Conocimiento, km 4.5 Carretera Pachuca-Tulancingo, C.P. 42184, Mineral de la Reforma Hidalgo, Mexico
| | - Viviana Cordero-Pensado
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Ciudad del Conocimiento, km 4.5 Carretera Pachuca-Tulancingo, C.P. 42184, Mineral de la Reforma Hidalgo, Mexico
| | - Julián Cruz-Borbolla
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Ciudad del Conocimiento, km 4.5 Carretera Pachuca-Tulancingo, C.P. 42184, Mineral de la Reforma Hidalgo, Mexico.
| | - José G Alvarado-Rodríguez
- Área Académica de Química, Universidad Autónoma del Estado de Hidalgo, Ciudad del Conocimiento, km 4.5 Carretera Pachuca-Tulancingo, C.P. 42184, Mineral de la Reforma Hidalgo, Mexico
| | - Pandiyan Thangarasu
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, C.P. 04510, Mexico City, Mexico
| | - Carlos Z Gómez-Castro
- Universidad Autónoma del Estado de Hidalgo, Ciudad del Conocimiento, C.P. 42184, Mineral de la Reforma, Hidalgo, Mexico
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27
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Ede JA, Cragg PJ, Sambrook MR. Comparison of Binding Affinities of Water-Soluble Calixarenes with the Organophosphorus Nerve Agent Soman (GD) and Commonly-Used Nerve Agent Simulants. Molecules 2018; 23:molecules23010207. [PMID: 29351252 PMCID: PMC6017458 DOI: 10.3390/molecules23010207] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/09/2018] [Accepted: 01/14/2018] [Indexed: 11/16/2022] Open
Abstract
The formation of inclusion complexes of the water-soluble p-sulfonatocalix[n]arenes, where n = 4 or 6, with the Chemical Warfare Agent (CWA) GD, or Soman, and commonly used dialkyl methylphosphonate simulants has been studied by experimental solution NMR methods and by Molecular Mechanics (MMFF) and semi-empirical (PM6) calculations. Complex formation in non-buffered and buffered solutions is driven by the hydrophobic effect, and complex stoichiometry determined as 1:1 for all host:guest pairs. Low affinity complexes (Kassoc < 100 M−1) are observed for all guests, attributed to poor host–guest complementarity and the role of buffer cation species accounts for the low affinity of the complexes. Comparison of CWA and simulant behavior adds to understanding of CWA–simulant correlations and the challenges of simulant selection.
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Affiliation(s)
- Jayne A Ede
- CBR Division, Dstl, Porton Down, Salisbury, Wiltshire SP4 0JQ, UK.
| | - Peter J Cragg
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton BN2 4GJ, UK.
| | - Mark R Sambrook
- CBR Division, Dstl, Porton Down, Salisbury, Wiltshire SP4 0JQ, UK.
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28
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Wang B, Bols M. Artificial Metallooxidases from Cyclodextrin Diacids. Chemistry 2017; 23:13766-13775. [DOI: 10.1002/chem.201702530] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Bo Wang
- Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 Copenhagen O Denkmark
| | - Mikael Bols
- Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 Copenhagen O Denkmark
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29
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Schneider C, Bierwisch A, Koller M, Worek F, Kubik S. Detoxification of VX and Other V-Type Nerve Agents in Water at 37 °C and pH 7.4 by Substituted Sulfonatocalix[4]arenes. Angew Chem Int Ed Engl 2016; 55:12668-72. [PMID: 27627873 PMCID: PMC5113771 DOI: 10.1002/anie.201606881] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Indexed: 02/02/2023]
Abstract
Sulfonatocalix[4]arenes with an appended hydroxamic acid residue can detoxify VX and related V‐type neurotoxic organophosphonates with half‐lives down to 3 min in aqueous buffer at 37 °C and pH 7.4. The detoxification activity is attributed to the millimolar affinity of the calixarene moiety for the positively charged organophosphonates in combination with the correct arrangement of the hydroxamic acid group. The reaction involves phosphonylation of the hydroxamic acid followed by a Lossen rearrangement, thus rendering the mode of action stoichiometric rather than catalytic. Nevertheless, these calixarenes are currently the most efficient low‐molecular‐weight compounds for detoxifying persistent V‐type nerve agents under mild conditions. They thus represent lead structures for novel antidotes that allow treatment of poisonings by these highly toxic chemicals.
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Affiliation(s)
- Christian Schneider
- Fachbereich Chemie-Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Strasse, 67663, Kaiserslautern, Germany
| | - Anne Bierwisch
- Institut für Pharmakologie und Toxikologie der Bundeswehr, Neuherbergstrasse 11, 80937, München, Germany
| | - Marianne Koller
- Institut für Pharmakologie und Toxikologie der Bundeswehr, Neuherbergstrasse 11, 80937, München, Germany
| | - Franz Worek
- Institut für Pharmakologie und Toxikologie der Bundeswehr, Neuherbergstrasse 11, 80937, München, Germany
| | - Stefan Kubik
- Fachbereich Chemie-Organische Chemie, Technische Universität Kaiserslautern, Erwin-Schrödinger-Strasse, 67663, Kaiserslautern, Germany.
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