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Alrawashdeh L, Assaf KI, Alshaer W, Odeh F, Bani-Atta SA. Preparation, characterization, and biological activity study of thymoquinone-cucurbit[7]uril inclusion complex. RSC Adv 2022; 12:1982-1988. [PMID: 35425234 PMCID: PMC8979228 DOI: 10.1039/d1ra08460g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/24/2021] [Indexed: 12/02/2022] Open
Abstract
In this study, the formation of a host–guest inclusion complex between cucurbit[7]uril (CB[7]) and thymoquinone (TQ) was investigated in aqueous solution. The formation of a stable inclusion complex, CB[7]–TQ, was confirmed by using different techniques, such as 1H NMR and UV-visible spectroscopy. The aqueous solubility of TQ was clearly enhanced upon the addition of CB[7], which provided an initial indication for supramolecular complexation. The complexation stoichiometry and the binding constant of the inclusion complex were determined through a combination of two sets of titration methods, including UV-visible and fluorescence displacement titrations. Both methods suggested the formation of a 1 : 1 stoichiometry between CB[7] and TQ with moderate binding affinity of 3 × 103 M−1. Density functional theory (DFT) calculations were also performed to verify the structure of the resulted host–guest complex and to support the complexation stoichiometry. The theoretical calculations were in agreement with experimental results obtained by 1H NMR spectroscopy. Most importantly, the cytotoxic effect of the CB[7]–TQ complex was investigated against cancer and normal cell lines. The results showed that the anticancer activity of TQ against MDA-MB-231 cells was enhanced by the complexation with CB[7], while no significant effect was observed in MCF-7 cells. The results also confirmed the low toxicity of the CB[7] host molecule that supports the use of CB[7] as a drug carrier. The host–guest inclusion complexation of thymoquinone by cucurbit[7]uril in aqueous solution is established, which results in an enhanced biological activity.![]()
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Affiliation(s)
- Lubna Alrawashdeh
- Department of Chemistry, Faculty of Science, The Hashemite University P.O. Box 330127 Zarqa 13133 Jordan
| | - Khaleel I Assaf
- Department of Chemistry, Al-Balqa Applied University Al-Salt 19117 Jordan
| | - Walhan Alshaer
- Cell Therapy Center, The University of Jordan Amman 11942 Jordan
| | - Fadwa Odeh
- Department of Chemistry, School of Science, The University of Jordan Amman 11942 Jordan
| | - Suhair A Bani-Atta
- Department of Chemistry, Faculty of Science, University of Tabuk 71491 Saudi Arabia
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Thangavel A. Inclusion and Charge Transfer Interaction of a Multi-Redox Active 1,3,5-Triazine Derivative by Cucurbit[7,8]urils. J Org Chem 2021; 86:1178-1182. [PMID: 33327719 DOI: 10.1021/acs.joc.0c02198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The redox active 1,3,5-triazine derivative (MPT) was used as a guest to study host-guest, charge transfer interaction with CB[7,8] in water. The multi-redox active MPT undergoes four chemically and electrochemically reversible one electron redox states in organic media, but in water, the fourth redox state shows an unstable nature. As a guest, the host-guest interaction of MPT was studied with two macrocyclic cucurbit[7,8]uril (CB[7,8]) hosts in water; resulting supramolecular complexes were characterized by NMR, ESI-MS, UV-vis, ITC, and cyclic voltammetric studies.
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Affiliation(s)
- Arumugam Thangavel
- Department of Chemistry and Biochemistry, California State University Dominguez Hills, Carson, California 90747, United States
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3
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Thangavel A, Macias M, Tsumaki S. Interaction of Phenyl-Substituted Diazaperylenium with Cucurbit[ n]uril: Complex versus Supramolecular Polymer. ACS OMEGA 2020; 5:5574-5579. [PMID: 32201851 PMCID: PMC7081634 DOI: 10.1021/acsomega.0c00501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 02/20/2020] [Indexed: 05/09/2023]
Abstract
A phenyl-substituted diazaperylenediium dication (DAP) was synthesized that shows concentration-dependent aggregation in water. The host-guest complexation of DAP was studied with the macrocyclic host cucurbit[n]uril (n = 7, 8) in water. With CB[7], it forms a 1:2 complex by placing two aryl substituents inside the CB[7]; whereas, with CB[8], a supramolecular polymer is formed. The resulting complex and supramolecular polymer have been characterized by ITC (isothermal titration calorimetry), ESI-MS (electrospray ionization mass spectrometry), 1H NMR (proton nuclear magnetic resonance), 2D NOESY (two-dimensional nuclear Overhauser enhancement spectroscopy), and DOSY (diffusion-ordered spectroscopy) spectra.
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Affiliation(s)
- Arumugam Thangavel
- Department of Chemistry and Biochemistry, California State University Dominguez Hills, Carson, California 90747, United States
| | - Monica Macias
- Department of Chemistry and Biochemistry, California State University Dominguez Hills, Carson, California 90747, United States
| | - Samantha Tsumaki
- Department of Chemistry and Biochemistry, California State University Dominguez Hills, Carson, California 90747, United States
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Kolesnichenko IV, Escamilla PR, Michael JA, Lynch VM, Vanden Bout DA, Anslyn EV. Hydrogen peroxide production via a redox reaction of N,N′-dimethyl-2,6-diaza-9,10-anthraquinonediium by addition of bisulfite. Chem Commun (Camb) 2018; 54:11204-11207. [DOI: 10.1039/c8cc05548c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrate that bisulfite can be used for reduction of a highly electrophilic anthraquinone derivative, N,N′-dimethyl-2,6-diaza-9,10-anthraquinonediium (DAAQ), and subsequent autoxidation generates an equivalent of hydrogen peroxide.
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Affiliation(s)
- Igor V. Kolesnichenko
- Department of Chemistry
- The University of Texas at Austin
- 1 University Station A1590
- Austin
- USA
| | - P. Rogelio Escamilla
- Department of Chemistry
- The University of Texas at Austin
- 1 University Station A1590
- Austin
- USA
| | - Jason A. Michael
- Department of Chemistry
- The University of Texas at Austin
- 1 University Station A1590
- Austin
- USA
| | - Vincent M. Lynch
- Department of Chemistry
- The University of Texas at Austin
- 1 University Station A1590
- Austin
- USA
| | - David A. Vanden Bout
- Department of Chemistry
- The University of Texas at Austin
- 1 University Station A1590
- Austin
- USA
| | - Eric V. Anslyn
- Department of Chemistry
- The University of Texas at Austin
- 1 University Station A1590
- Austin
- USA
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Crespi AF, Vega D, Chattah AK, Monti GA, Buldain GY, Lázaro-Martínez JM. gem-Diol and Hemiacetal Forms in Formylpyridine and Vitamin-B6-Related Compounds: Solid-State NMR and Single-Crystal X-ray Diffraction Studies. J Phys Chem A 2016; 120:7778-7785. [DOI: 10.1021/acs.jpca.6b07898] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ayelén Florencia Crespi
- Departamento
de Química Orgánica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956 (C1113AAD), CABA, Argentina
| | - Daniel Vega
- Departamento
de Física de la Materia Condensada, Comisión Nacional de Energía Atómica, Av. Gral. Paz 1499 (1650)San Martín, Buenos Aires, Argentina
- Escuela de
Ciencia y Tecnología, Universidad Nacional de General San Martín, Buenos Aires, Argentina
| | - Ana Karina Chattah
- FaMAF-Universidad Nacional de Córdoba & IFEG-CONICET, Medina Allende s/n (X5000HUA), Córdoba, Argentina
| | - Gustavo Alberto Monti
- FaMAF-Universidad Nacional de Córdoba & IFEG-CONICET, Medina Allende s/n (X5000HUA), Córdoba, Argentina
| | - Graciela Yolanda Buldain
- Departamento
de Química Orgánica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956 (C1113AAD), CABA, Argentina
- CONICET, Godoy Cruz 2290 (C1425FQB), CABA, Argentina
| | - Juan Manuel Lázaro-Martínez
- Departamento
de Química Orgánica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956 (C1113AAD), CABA, Argentina
- IQUIFIB-CONICET, Junín 956 (C1113AAD), CABA, Argentina
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Shi W, Xing F, Bai YL, Hu M, Zhao Y, Li MX, Zhu S. High Sensitivity Viologen for a Facile and Versatile Sensor of Base and Solvent Polarity in Solution and Solid State in Air Atmosphere. ACS APPLIED MATERIALS & INTERFACES 2015; 7:14493-14500. [PMID: 26066088 DOI: 10.1021/acsami.5b03932] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Viologen cations are excellent electro- and photochromic materials. They generally have no response or very low sensitivity to bases. In this paper, three compounds, 1,1'-bis(2-oxo-2-phenylethyl)-4,4'-bipyridinium (viologen) with different substituents, including H (1), Cl (2), and OH (3), were synthesized. All three, especially 1 and 2, have very high sensitivity to base in both solution and solid state in air atmosphere. These viologens are responsive not only to bases but also to solvent polarity. NMR shows 1 became enolic and then a radical, whereas 3 is colored only in the radical form. These results are in agreement with EPR spectra. Crystal structures show that the C-C that links two pyridinium and N-C distances in coplanar pyridinium in the colored (radical) form is clearly longer than that of the pale-yellow form, indicating that the color is due to the viologen radical. Viologens containing an electron-withdrawing phenacetyl group are the most sensitive compounds for fast, naked eye detection of base and solvent polarity.
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Affiliation(s)
- Wei Shi
- Innovative Drug Center, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Feifei Xing
- Innovative Drug Center, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Yue-Ling Bai
- Innovative Drug Center, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Meiling Hu
- Innovative Drug Center, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Yongmei Zhao
- Innovative Drug Center, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Ming-Xing Li
- Innovative Drug Center, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Shourong Zhu
- Innovative Drug Center, Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
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