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Chatterjee S, Jain CK, Saha T, Roychoudhury S, Majumder HK, Das S. Utilizing coordination chemistry through formation of a Cu II-quinalizarin complex to manipulate cell biology: An in vitro, in silico approach. J Inorg Biochem 2023; 249:112369. [PMID: 37776829 DOI: 10.1016/j.jinorgbio.2023.112369] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 10/02/2023]
Abstract
Quinalizarin, an analogue of anthracycline anticancer agents, is an anticancer agent itself. A CuII complex was prepared and characterized by elemental analysis, UV-Vis & IR spectroscopy, mass spectrometry, EPR and DFT. The intention behind the preparation of the complex was to increase cellular uptake, compare its binding with DNA against that of quinalizarin, modulation of semiquinone formation, realization of human DNA topoisomerase I & human DNA topoisomerase II inhibition and observation of anticancer activity. While the first two attributes of complex formation lead to increased efficacy, decrease in semiquinone generation could results in a compromise with efficacy. Inhibition of human DNA topoisomerase makes up this envisaged compromise in free radical activity since the complex shows remarkable ability to disrupt activities of human DNA topoisomerase I and II. The complex unlike quinalizarin, does not catalyze flow of electrons from NADH to O2 to the extent known for quinalizarin. Hence, decrease in semiquinone or superoxide radical anion could make modified quinalizarin [as CuII complex] less efficient in free radical pathway. However, it would be less cardiotoxic and that would be advantageous to qualify it as a better anticancer agent. Although binding to calf thymus DNA was comparable to quinalizarin, it was weaker than anthracyclines. Low cost of quinalizarin could justify consideration as a substitute for anthracyclines but the study revealed IC50 of quinalizarin/CuII-quinalizarin was much higher than anthracyclines or their complexes. Even then, there is a possibility that CuII-quinalizarin could be an improved and less costly form of quinalizarin as anticancer agent.
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Affiliation(s)
- Sayantani Chatterjee
- Department of Chemistry (Inorganic Section), Jadavpur University, Kolkata 700 032, India; Department of Chemistry, Vijaygarh Jyotish Ray College, Kolkata 700 032, India
| | - Chetan Kumar Jain
- Cancer Biology & Inflammatory Disorder Division, Indian Institute of Chemical Biology, Kolkata 700 032, India; Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Kolkata 700 032, India
| | - Tanmoy Saha
- Department of Chemistry (Inorganic Section), Jadavpur University, Kolkata 700 032, India
| | - Susanta Roychoudhury
- Cancer Biology & Inflammatory Disorder Division, Indian Institute of Chemical Biology, Kolkata 700 032, India
| | - Hemanta Kumar Majumder
- Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology, Kolkata 700 032, India
| | - Saurabh Das
- Department of Chemistry (Inorganic Section), Jadavpur University, Kolkata 700 032, India.
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2
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Khan A, Ezati P, Rhim JW. Alizarin: Prospects and sustainability for food safety and quality monitoring applications. Colloids Surf B Biointerfaces 2023; 223:113169. [PMID: 36738702 DOI: 10.1016/j.colsurfb.2023.113169] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/16/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023]
Abstract
Active and intelligent food packaging has emerged to ensure food safety, quality, or spoilage monitoring and extend the shelf life of food. The development of intelligent packaging has accelerated significantly in recent years with a focus on monitoring changes in the quality of packaged products in real-time throughout the food supply chain. As one of the popular natural colorants, alizarin has attracted much consideration due to its excellent functional properties and quality to color change under varying pH. Alizarin is an efficient and cost-effective biomaterial with numerous biological features such as antioxidant, antibacterial, non-cytotoxic, and antitumor. This review focuses on an in-depth summary and prospects for alizarin as a natural and safe colorant that has the potential to be incorporated into intelligent packaging to track the freshness of packaged foodstuffs. The use of alizarin as an intelligent packaging agent shows huge potential for the application of food packaging and brings it one step closer to real-time monitoring of food quality throughout the supply chain. Finally, various limitations and future requirements are discussed to underscore the importance of developing alizarin-based intelligent functional food packaging systems.
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Affiliation(s)
- Ajahar Khan
- BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Parya Ezati
- BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Jong-Whan Rhim
- BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea.
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3
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Saha M, Singha S, Ghosh D, Kumar S, Karmakar P, Das S. A CobaltII/CobaltIII complex of alizarin that was analyzed from the stand point of binding with DNA, for ROS generation and anticancer drug prospecting was identified as an analogue of anthracyclines. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Gao S, Zhao L, Fan Z, Kodibagkar VD, Liu L, Wang H, Xu H, Tu M, Hu B, Cao C, Zhang Z, Yu JX. In Situ Generated Novel 1H MRI Reporter for β-Galactosidase Activity Detection and Visualization in Living Tumor Cells. Front Chem 2021; 9:709581. [PMID: 34336792 PMCID: PMC8321238 DOI: 10.3389/fchem.2021.709581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 06/16/2021] [Indexed: 12/24/2022] Open
Abstract
For wide applications of the lacZ gene in cellular/molecular biology, small animal investigations, and clinical assessments, the improvement of noninvasive imaging approaches to precisely assay gene expression has garnered much attention. In this study, we investigate a novel molecular platform in which alizarin 2-O-β-d-galactopyranoside AZ-1 acts as a lacZ gene/β-gal responsive 1H-MRI probe to induce significant 1H-MRI contrast changes in relaxation times T 1 and T 2 in situ as a concerted effect for the discovery of β-gal activity with the exposure of Fe3+. We also demonstrate the capability of this strategy for detecting β-gal activity with lacZ-transfected human MCF7 breast and PC3 prostate cancer cells by reaction-enhanced 1H-MRI T 1 and T 2 relaxation mapping.
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Affiliation(s)
- Shuo Gao
- Center of Translational Medicine, Fifth School of Medicine/Suizhou Central Hospital, Hubei University of Medicine, Suizhou, China
| | - Lei Zhao
- Center of Translational Medicine, Fifth School of Medicine/Suizhou Central Hospital, Hubei University of Medicine, Suizhou, China
| | - Zhiqiang Fan
- Center of Translational Medicine, Fifth School of Medicine/Suizhou Central Hospital, Hubei University of Medicine, Suizhou, China
| | - Vikram D. Kodibagkar
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, United States
| | - Li Liu
- Department of Radiology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, United States
| | - Hanqin Wang
- Center of Translational Medicine, Fifth School of Medicine/Suizhou Central Hospital, Hubei University of Medicine, Suizhou, China
| | - Hong Xu
- Center of Translational Medicine, Fifth School of Medicine/Suizhou Central Hospital, Hubei University of Medicine, Suizhou, China
| | - Mingli Tu
- Center of Translational Medicine, Fifth School of Medicine/Suizhou Central Hospital, Hubei University of Medicine, Suizhou, China
| | - Bifu Hu
- Center of Translational Medicine, Fifth School of Medicine/Suizhou Central Hospital, Hubei University of Medicine, Suizhou, China
| | - Chuanbin Cao
- Center of Translational Medicine, Fifth School of Medicine/Suizhou Central Hospital, Hubei University of Medicine, Suizhou, China
| | - Zhenjian Zhang
- Center of Translational Medicine, Fifth School of Medicine/Suizhou Central Hospital, Hubei University of Medicine, Suizhou, China
| | - Jian-Xin Yu
- Center of Translational Medicine, Fifth School of Medicine/Suizhou Central Hospital, Hubei University of Medicine, Suizhou, China
- Biomedical Research Institute, Hubei University of Medicine, Shiyan, China
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5
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Saha M, Singha S, Chakraborty M, Mazumdar S, Kumar S, Karmakar P, Das S. Characterization of a MnII complex of Alizarin suggests attributes explaining a superior anticancer activity: A comparison with anthracycline drugs. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.08.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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6
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Sun C, Li H, Yin H, Li Y, Shi Y. Effects of the cyano substitution at different positions on the ESIPT properties of alizarin: A DFT/TD-DFT investigation. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.08.087] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Mukherjee Chatterjee S, Jain CK, Singha S, Das P, Roychoudhury S, Majumder HK, Das S. Activity of Co II-Quinalizarin: A Novel Analogue of Anthracycline-Based Anticancer Agents Targets Human DNA Topoisomerase, Whereas Quinalizarin Itself Acts via Formation of Semiquinone on Acute Lymphoblastic Leukemia MOLT-4 and HCT 116 Cells. ACS OMEGA 2018; 3:10255-10266. [PMID: 31459155 PMCID: PMC6644896 DOI: 10.1021/acsomega.8b00706] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 07/23/2018] [Indexed: 05/13/2023]
Abstract
Quinalizarin (THAQ), a hydroxy-9,10-anthraquinone analogue of the family of anthracycline anticancer drugs and an inhibitor of protein kinase, was observed for its anticancer activity. Because apart from showing anticancer activity, anthracyclines and their analogues also show cardiotoxic side effects, believed to be addressed through metal complex formation; an effort was made to realize this by preparing a CoII complex of THAQ. The aim of this study was to find out if complex formation leads to a decrease in the generation of intermediates that are responsible for toxic side effects. However, because this also meant that efficacy on cancer cells would be compromised, studies were undertaken on two cancer cell lines, namely, acute lymphoblastic leukemia (ALL) MOLT-4 and HCT116 cells. The complex decreases the flow of electrons from NADH to molecular oxygen (O2) in the presence of NADH dehydrogenase forming less semiquinone than THAQ. It showed increased affinity toward DNA with binding constant values remaining constant over the physiological pH range unlike THAQ (for which decrease in binding constant values with increase in pH was observed). The complex is probably a human DNA topoisomerase I and human DNA topoisomerase II poison acting by stabilizing the covalent topoisomerase-cleaved DNA adduct, a phenomenon not observed for THAQ. Activity of the compounds on cancer cells suggests that THAQ was more effective on ALL MOLT-4 cells, whereas the complex performed better on HCT116 cells. Results suggest that the formation of semiquinone probably dominates the action because of THAQ, whereas the performance of the complex is attributed to increased DNA binding, inhibition of topoisomerase, and so forth. Inspite of a decrease in the generation of superoxide by the complex, it did not hamper efficacy on either cell line, probably compensated by improved DNA binding and inhibition of topoisomerase enzymes which are positive attributes of complex formation. A decrease in superoxide formation suggests that the complex could be less cardiotoxic, thus increasing its therapeutic index.
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Affiliation(s)
| | - Chetan Kumar Jain
- Cancer Biology & Inflammatory
Disorder Division and Infectious Diseases and Immunology
Division, Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Soumen Singha
- Department
of Chemistry (Inorganic Section) and Department of Physics, Jadavpur University, Kolkata 700032, India
| | - Piyal Das
- Department
of Chemistry (Inorganic Section) and Department of Physics, Jadavpur University, Kolkata 700032, India
| | - Susanta Roychoudhury
- Cancer Biology & Inflammatory
Disorder Division and Infectious Diseases and Immunology
Division, Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Hemanta Kumar Majumder
- Cancer Biology & Inflammatory
Disorder Division and Infectious Diseases and Immunology
Division, Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Saurabh Das
- Department
of Chemistry (Inorganic Section) and Department of Physics, Jadavpur University, Kolkata 700032, India
- E-mail: , . Phone: +91 33
24572148, +91 33 8902087756. Fax: +91
33 24146223 (S.D.)
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8
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Caram J, Banera M, Suárez JM, Mirífico M. ELECTROCHEMICAL BEHAVIOUR OF ANTHRAQUINONE DYES IN NON AQUEOUS SOLVENT SOLUTION. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Das P, Jain CK, Roychoudhury S, Majumder HK, Das S. Design, Synthesis andin vitroAnticancer Activity of a Cu(II) Complex of Carminic Acid: A Novel Small Molecule Inhibitor of Human DNA Topoisomerase I and Topoisomerase II. ChemistrySelect 2016. [DOI: 10.1002/slct.201601152] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Piyal Das
- Department of Chemistry (Inorganic Section); Jadavpur University; Kolkata- 700032 INDIA
- Environmental Engineering Section; MECON Limited; Ranchi - 834 002 INDIA
| | - Chetan Kumar Jain
- Cancer Biology and Inflammatory Disorder Division; CSIR-Indian Institute of Chemical Biology; Kolkata- 700032 INDIA
- Infectious Diseases and Immunology Division; CSIR-Indian Institute of Chemical Biology; Kolkata- 700032 INDIA
| | - Susanta Roychoudhury
- Cancer Biology and Inflammatory Disorder Division; CSIR-Indian Institute of Chemical Biology; Kolkata- 700032 INDIA
| | - Hemanta Kumar Majumder
- Infectious Diseases and Immunology Division; CSIR-Indian Institute of Chemical Biology; Kolkata- 700032 INDIA
| | - Saurabh Das
- Department of Chemistry (Inorganic Section); Jadavpur University; Kolkata- 700032 INDIA
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10
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The control and optimization of the curing process of epoxy coatings: a case of poly(glycidoxy siloxane) resins. JOURNAL OF POLYMER ENGINEERING 2016. [DOI: 10.1515/polyeng-2015-0276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Coatings from poly(glycidoxy siloxane) resins were developed and their mechanical properties examined. Three different resins with varying numbers of methyl siloxane and glycidyl siloxane units were tested. Crystallinity was found to be a very important indicator of the mechanical properties of coatings, as the parameters such as cupping and hardness were linearly dependent on the degree of crystallinity of coatings. The method involving the spectrophotometric determination of unbounded amine curing agent was successfully applied as a way of optimizing the curing process both for expected mechanical properties and for ecological aspect. It was found that the resin with 50 methyl siloxane and 25 glycidyl siloxane units was the most appropriate for technological use because of the preferred mechanical properties and stability of technological parameters. Interestingly, this type of resin was characterized by the lowest degree of crystallinity. The curing conditions leading to the optimal product corresponded to 30 min of curing at 120°C or 20 min at 140°C. Under such conditions, the amount of released unbounded amine was the lowest. It was also found that poly(glycidoxy) siloxane resins may be ecologically valuable since the release of amine from this type of resins is smaller than that from a typical epoxy resin.
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11
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Jeliński T, Cysewski P. Structure and properties of alizarin complex formed with alkali metal hydroxides in methanol solution. J Mol Model 2016; 22:126. [PMID: 27178415 DOI: 10.1007/s00894-016-2988-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 04/21/2016] [Indexed: 10/21/2022]
Abstract
Quantum chemical computations were used for prediction of the structure and color of alizarin complex with alkali metal hydroxides in methanolic solutions. The color prediction relying on the single Gaussian-like band once again proved the usefulness of the PBE0 density functional due to the observed smallest color difference between computed and experimentally derived values. It was found that the alkali metal hydroxide molecules can bind to the two oxygen atoms of both hydroxyl groups of alizarin or to one of these atoms and the oxygen atom from the keto group in a complex with three methanol molecules. This means that two electronic transitions need to be taken into account when considering the spectra of the studied complexes. The resulting bond lengths and angles are correlated with the properties of the alkali metal atoms. The molar mass, the atomic radius, and the Pauling electronegativity of studied metals are quite accurate predictors of the geometric properties of hydroxide complexes with alizarin in methanol solution. Graphical abstract The spectra of the neutral and monoanionic form of alizarin together with color changes resulting from addition of different metal hydroxides and represented in CIE color space.
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Affiliation(s)
- Tomasz Jeliński
- Department of Physical Chemistry, Collegium Medicum, Nicolaus Copernicus University, Kurpińskiego 5, 85-950, Bydgoszcz, Poland.
| | - Piotr Cysewski
- Department of Physical Chemistry, Collegium Medicum, Nicolaus Copernicus University, Kurpińskiego 5, 85-950, Bydgoszcz, Poland
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12
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Guin PS, Das S. Electrochemical Reduction of Nickel(II)—Dihydroxyanthraquinone Sulfonate: How Complex Formation Affects Biochemical Behavior? RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2016. [DOI: 10.1134/s0036024416040257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Mandal B, Singha S, Dey SK, Mazumdar S, Mondal TK, Karmakar P, Kumar S, Das S. Synthesis, crystal structure from PXRD of a MnII(purp)2complex, interaction with DNA at different temperatures and pH and lack of stimulated ROS formation by the complex. RSC Adv 2016. [DOI: 10.1039/c6ra09387f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
MnII(purpurin)2crystal structure done from PXRD is the second report on hydroxy-9,10-anthraquinone with a 3d-transition metal. DNA binding of complex is better and ROS generation less than purpurin. Complex maintains biological activity of purpurin.
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Affiliation(s)
- Bitapi Mandal
- Department of Chemistry (Inorganic Section)
- Jadavpur University
- Kolkata-700032
- India
| | - Soumen Singha
- Department of Physics
- Jadavpur University
- Kolkata-700032
- India
| | | | - Swagata Mazumdar
- Department of Life Science and Biotechnology
- Jadavpur University
- Kolkata-700032
- India
| | - Tapan Kumar Mondal
- Department of Chemistry (Inorganic Section)
- Jadavpur University
- Kolkata-700032
- India
| | - Parimal Karmakar
- Department of Life Science and Biotechnology
- Jadavpur University
- Kolkata-700032
- India
| | - Sanjay Kumar
- Department of Physics
- Jadavpur University
- Kolkata-700032
- India
| | - Saurabh Das
- Department of Chemistry (Inorganic Section)
- Jadavpur University
- Kolkata-700032
- India
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14
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Das P, Jain CK, Dey SK, Saha R, Chowdhury AD, Roychoudhury S, Kumar S, Majumder HK, Das S. Synthesis, crystal structure, DNA interaction and in vitro anticancer activity of a Cu(ii) complex of purpurin: dual poison for human DNA topoisomerase I and II. RSC Adv 2014. [DOI: 10.1039/c4ra07127a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Although generation of reactive oxygen species (ROS) by anthracycline anticancer drugs is essential for anti-tumor activity, they make these drugs cardiotoxic.
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Affiliation(s)
- Piyal Das
- Department of Chemistry
- Jadavpur University
- Kolkata-700032, India
| | - Chetan Kumar Jain
- Cancer Biology & Inflammatory Disorder Division
- Indian Institute of Chemical Biology
- Kolkata-700032, India
- Infectious Diseases and Immunology Division
- Indian Institute of Chemical Biology
| | - Sanjoy K. Dey
- Department of Physics
- Jadavpur University
- Kolkata-700032, India
| | - Rajat Saha
- Department of Physics
- Jadavpur University
- Kolkata-700032, India
| | | | - Susanta Roychoudhury
- Cancer Biology & Inflammatory Disorder Division
- Indian Institute of Chemical Biology
- Kolkata-700032, India
| | - Sanjay Kumar
- Department of Physics
- Jadavpur University
- Kolkata-700032, India
| | - Hemanta Kumar Majumder
- Infectious Diseases and Immunology Division
- Indian Institute of Chemical Biology
- Kolkata-700032, India
| | - Saurabh Das
- Department of Chemistry
- Jadavpur University
- Kolkata-700032, India
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15
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Jeliński T, Cysewski P, Makarewicz E. Application of alizarin colorimetric measurements for quantification of amine extraction by model food simulants from epoxy polymer. SPRINGERPLUS 2013; 2:593. [PMID: 24294544 PMCID: PMC3833905 DOI: 10.1186/2193-1801-2-593] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 10/23/2013] [Indexed: 12/01/2022]
Abstract
A simple and straightforward method has been proposed for quantification of residual amine in cured epoxy resin. Non-bounded triethylenetetramine was extracted from epoxy polymer and determined via spectrophotometry using alizarin chromophore. Four solvents commonly used as food simulants, namely water, 95% ethanol, 10% ethanol and 3% acetic acid were examined. Released amine induces changes in the absorption spectrum of alizarin, by decreasing the intensity of the maximum at 430 nm band and mutually increasing the 527 nm band. These changes were proportional to the amounts of amine concentration in samples. The statistical significance of obtained calibration curves was validated. Among studied solvents, the highest amine release was observed for water solution and 3% acetic acid, that is approximately 7% w/w. The maximal amount of residual amine extracted with 95% ethanol was about 1.25%, while for 10% ethanol this amount was 2%. The effect of aging of the samples and exposure to artificial sunlight were also examined. The proposed method has been proven to be fast, low cost and directly applicable for analysis of typical epoxy resins.
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Affiliation(s)
- Tomasz Jeliński
- />Department of Physical Chemistry, Collegium Medicum, Nicolaus Copernicus University, Kurpińskiego 5, 85-950 Bydgoszcz, Poland
| | - Piotr Cysewski
- />Department of Physical Chemistry, Collegium Medicum, Nicolaus Copernicus University, Kurpińskiego 5, 85-950 Bydgoszcz, Poland
- />Division of Materials Chemistry and Protective Coatings University of Technology and Life Sciences, Faculty of Chemical Technology and Engineering, Seminaryjna 3, 85-326 Bydgoszcz, Poland
| | - Edwin Makarewicz
- />Division of Materials Chemistry and Protective Coatings University of Technology and Life Sciences, Faculty of Chemical Technology and Engineering, Seminaryjna 3, 85-326 Bydgoszcz, Poland
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16
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Eslami M, Namazian M, Zare HR. Electrooxidation of homogentisic acid in aqueous and mixed solvent solutions: experimental and theoretical studies. J Phys Chem B 2013; 117:2757-63. [PMID: 23384055 DOI: 10.1021/jp3121325] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Electrochemical behavior of homogentisic acid (HGA) has been studied in both aqueous and mixed solvent solution of water-acetonitrile. Physicochemical parameters of the electrochemical reaction of HGA in these solutions are obtained experimentally by cyclic voltammetry method and are also calculated theoretically using accurate ab initio calculations (G3MP2//B3LYP). Solvation energies are calculated using the available solvation model of CPCM. The pH dependence of the redox activity of HGA in aqueous and the mixture solutions at different temperatures was used for the experimental determination of the standard reduction potential and changes of entropy, enthalpy, and Gibbs free energy for the studied reaction. The experimental standard redox potential of the compound in aqueous solution was obtained to be 0.636 V versus the standard hydrogen electrode. There is a good agreement between the theoretical and experimental values (0.702 and 0.636 V) for the standard electrode potential of HGA. The changes of thermodynamic functions of solvation are also calculated from the differences between the solution-phase experimental values and the gas-phase theoretical values. Finally, using the value of solvation energy of HGA in water and acetonitrile solvents which calculated by the CPCM model of energy, we proposed an equation for calculating the standard redox potential of HGA in mixture solution of water and acetonitrile. A good agreement between the result of electrode potential calculated by the proposed equation and the experimental value confirms the validity of the theoretical models used here and the accuracy of experimental methods.
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Affiliation(s)
- Marzieh Eslami
- Department of Chemistry, Yazd University, P. O. Box 89195-741, Yazd, Iran
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17
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Cysewski P, Jeliński T. Accuracy of color prediction of anthraquinone dyes in methanol solution estimated from first principle quantum chemistry computations. J Mol Model 2012; 19:4089-97. [PMID: 23250806 DOI: 10.1007/s00894-012-1717-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 11/29/2012] [Indexed: 10/27/2022]
Abstract
The electronic spectrum of four different anthraquinones (1,2-dihydroxyanthraquinone, 1-aminoanthraquinone, 2-aminoanthraquinone and 1-amino-2-methylanthraquinone) in methanol solution was measured and used as reference data for theoretical color prediction. The visible part of the spectrum was modeled according to TD-DFT framework with a broad range of DFT functionals. The convoluted theoretical spectra were validated against experimental data by a direct color comparison in terms of CIE XYZ and CIE Lab tristimulus model color. It was found, that the 6-31G** basis set provides the most accurate color prediction and there is no need to extend the basis set since it does not improve the prediction of color. Although different functionals were found to give the most accurate color prediction for different anthraquinones, it is possible to apply the same DFT approach for the whole set of analyzed dyes. Especially three functionals seem to be valuable, namely mPW1LYP, B1LYP and PBE0 due to very similar spectra predictions. The major source of discrepancies between theoretical and experimental spectra comes from L values, representing the lightness, and the a parameter, depicting the position on green→magenta axis. Fortunately, the agreement between computed and observed blue→yellow axis (parameter b) is very precise in the case of studied anthraquinone dyes in methanol solution. Despite discussed shortcomings, color prediction from first principle quantum chemistry computations can lead to quite satisfactory results, expressed in terms of color space parameters.
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Affiliation(s)
- Piotr Cysewski
- Department of Physical Chemistry, Collegium Medicum, Nicolaus Copernicus University, Kurpińskiego 5, 85-950, Bydgoszcz, Poland,
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Cysewski P, Jeliński T, Przybyłek M, Shyichuk A. Color prediction from first principle quantum chemistry computations: a case of alizarin dissolved in methanol. NEW J CHEM 2012. [DOI: 10.1039/c2nj40327g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Al(III) complexation by alizarin studied by electronic spectroscopy and quantum chemical calculations. Polyhedron 2011. [DOI: 10.1016/j.poly.2011.06.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Guin PS, Das S, Mandal PC. Studies on the formation of a complex of Cu(II) with sodium 1,4-dihydroxy-9,10-anthraquinone-2-sulphonate - an analogue of the core unit of anthracycline anticancer drugs and its interaction with calf thymus DNA. J Inorg Biochem 2009; 103:1702-10. [PMID: 19853921 DOI: 10.1016/j.jinorgbio.2009.09.020] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2009] [Revised: 09/19/2009] [Accepted: 09/23/2009] [Indexed: 11/19/2022]
Abstract
Copper(II) forms a complex with sodium 1,4-dihydroxy-9,10-anthraquinone-2-sulphonate (sodium quinizarin-2-sulphonate, NaQSH(2)), an analogue of the core unit of anthracycline antibiotics used in the treatment of cancer. The 1:2 metal-ligand complex is formed in aqueous solution at neutral and acidic pH while in alkaline pH both 1:1 and 1:2 species are formed. The effective stability constant of the 1:2 metal-ligand complex is 9.64x10(16) while that of the 1:1 metal-ligand complex is 9.4x10(9). The 1:2 complex Cu(NaQSH)(2)(H(2)O)(2) was synthesized and characterized by different techniques in solid state and in solution. The complex Cu(NaQSH)(2)(H(2)O)(2) interacts with calf thymus DNA which was studied by fluorescence spectroscopy. The binding constant and site size for the interaction with DNA were determined.
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Affiliation(s)
- Partha Sarathi Guin
- Chemical Sciences Division, Saha Institute of Nuclear Physics, 1/AF-Bidhannagar, Kolkata 700064, India
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Siddlingeshwar B, Hanagodimath SM. Estimation of first excited singlet-state dipole moments of aminoanthraquinones by solvatochromic method. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:490-495. [PMID: 19056310 DOI: 10.1016/j.saa.2008.10.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2008] [Revised: 10/14/2008] [Accepted: 10/17/2008] [Indexed: 05/27/2023]
Abstract
The ground state (micro(g)) and the excited state (micro(e)) dipole moments of three substituted anthraquinones, namely 1-aminoanthracene-9,10-dione (AAQ), 1-(methylamino)anthracence-9,10-dione (MAQ) and 1,5-diaminoanthracene-9,10-dione (DAQ) were estimated in various solvents. The dipole moments (micro(g) and micro(e)) were estimated from Lippert, Bakhshiev, Kawski-Chamma-Viallet, McRae and Suppan equations by using the variation of Stokes shift with the solvent dielectric constant and refractive index. The excited state dipole moments were also calculated by using the variation of Stokes shift with microscopic solvent polarity parameter (Epsilon(T)(N)). It was observed that dipole moment values of excited states (micro(e)) were higher than corresponding ground state values (micro(g)), indicating a substantial redistribution of the pi-electron densities in a more polar excited state for all the molecules investigated.
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Affiliation(s)
- B Siddlingeshwar
- Department of Physics, Gulbarga University, Gulbarga 585106, Karnataka, India
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Das S, Mandal PC. Influence of Ni(II) and Fe(III) complexes of 1,2 dihydroxy 9,10 anthraquinone on the modification in calf thymus DNA upon gamma irradiation. Radiat Phys Chem Oxf Engl 1993 2009. [DOI: 10.1016/j.radphyschem.2008.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sasirekha V, Ramakrishnan V. Study of preferential solvation of 2,6-diaminoanthraquinone in binary mixtures by absorption and fluorescence studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 70:626-33. [PMID: 17913571 DOI: 10.1016/j.saa.2007.08.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2007] [Revised: 08/04/2007] [Accepted: 08/15/2007] [Indexed: 05/17/2023]
Abstract
The role of solute-solvent and solvent-solvent interaction on the preferential solvation characteristics of 2,6-diaminoanthraquinone (DAAQ) has been analysed by monitoring the optical absorption and fluorescence emission spectra. Binary mixtures consist of dimethylformamide (DMF)-ethanol (EtOH), DMF-dimelthylsulfoxide (DMSO), benzene (BZ)-DMF and acetonitrile (ACN)-DMF. The optical absorption spectra maximum and emission spectra maximum of DAAQ show the changes with varying the solvents and change in the composition in the case of binary mixtures. Non-ideal solvation characteristics are observed in all binary mixtures. It is found that at certain concentrations two mixed solvents interact to form a common structure with a nu(12) (wave number in cm(-1)) value not always intermediate (nu(1) and nu(2)) between the values of the solvents mixed. Synergistic effect is observed in the case of DMF-EtOH mixtures. The preferential solvation parameters local mole fraction X(2)(L), solvation index delta(S2), exchange constant K(12) are calculated in all binary mixtures expect in the case of DMF-BZ mixture and DMF-EtOH mixture in the ground state. We have also monitored excitation wavelength effect on the probe molecule in aprotic polar and protic polar solvents.
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Affiliation(s)
- V Sasirekha
- Department of Laser Studies, School of Physics, Madurai Kamaraj University, Madurai 625021, India.
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Alizadeh K, Shamsipur M. Calculation of the two-step reduction potentials of some quinones in acetonitrile. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.theochem.2008.04.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Sasirekha V, Umadevi M, Ramakrishnan V. Solvatochromic study of 1,2-dihydroxyanthraquinone in neat and binary solvent mixtures. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 69:148-55. [PMID: 17451998 DOI: 10.1016/j.saa.2007.03.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2006] [Revised: 02/21/2007] [Accepted: 03/14/2007] [Indexed: 05/15/2023]
Abstract
Preferential solvation of a solvatochromic probe has been studied in binary mixtures comprising of a non-protic and a protic solvent. The non-protic solvents employed are carbon tetrachloride (CCl(4)), acetonitrile (AcN) and N,N-dimethyl formamide (DMF) and the protic solvents are methanol (MeOH) and ethanol (EtOH). The probe molecule exhibits different spectroscopic characteristics depending upon the properties of the solubilizing media. The observed spectral features provide an indication of the microenvironment immediately surrounding the probe. Solvatochromic shifts of the ground and excited states of the probe were analysed by monitoring the charge transfer absorption band and the fluorescence emission spectra in terms of the solute-solvent and solvent-solvent interactions. Fluorescence emission spectra show the dual emission due to excited state proton transfer nature of the probe molecule. The effect of solvent and the excitation energy on dual emission are also studied. The observed magnitude of the Stokes shift in the above solvents has been used to deduce experimentally the dipole moment ratio of the probe molecule for the excited state to the ground state. The dipole moment of excited state is higher than the ground state.
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Affiliation(s)
- V Sasirekha
- Department of Laser Studies, Madurai Kamaraj University, Madurai 625021, India
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Post-column deprotonation and complexation in HPLC as a tool for identification and structure elucidation of compounds from natural dyes of historical importance. Mikrochim Acta 2007. [DOI: 10.1007/s00604-007-0827-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kar P, Suresh M, Krishna Kumar D, Amilan Jose D, Ganguly B, Das A. Preferential binding of the magnesium ion by anthraquinone based chromogenic receptors. Polyhedron 2007. [DOI: 10.1016/j.poly.2006.10.051] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Thermo-XRD-analysis and peptization study of the adsorption of alizarinate by Co-, Ni-, and Cu-montmorillonite. Colloid Polym Sci 2004. [DOI: 10.1007/s00396-004-1184-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Namazian M, Almodarresieh HA. Computational electrochemistry: aqueous two-electron reduction potentials for substituted quinones. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.theochem.2004.08.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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