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D. S. A, Julietraja K, Jaganathan B, Alsinai A. Curcumin-Conjugated PAMAM Dendrimers of Two Generations: Comparative Analysis of Physiochemical Properties Using Adriatic Topological Indices. ACS OMEGA 2024; 9:14558-14579. [PMID: 38559925 PMCID: PMC10976413 DOI: 10.1021/acsomega.4c00686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 02/20/2024] [Accepted: 02/26/2024] [Indexed: 04/04/2024]
Abstract
Curcumin (C21H20O6) is a polyphenol found in the plant Curcuma longa. Even though it possesses many pharmacological effects, owing to its limited intestinal absorption, solubility, and oral bioavailability, it is more often used as a health supplement than as a lead chemical. The poly(amido)amine (PAMAM) dendrimer (nanostructure) is utilized to enhance the stability and targeted delivery of drugs. Recently, curcumin was conjugated with the PAMAM dendrimer and analyzed for its photostability. Further investigation into the physiochemical characteristics of different generations can facilitate curcumins' targeted delivery for many diseases, including cancer. However, many of these conjugates' physiochemical properties are not available in databases since they have not been explored theoretically or experimentally. In this article, QSAR/QSPR (quantitative structure-activity relationship/quantitative structure-property relationship) analysis of physiochemical properties was carried out for component structures, which produced encouraging results. Hence, 16 discrete adriatic topological indices and their associated entropy measures were evaluated to theoretically predict a few physiochemical properties of the conjugated structure. The predictions will aid the chemist in drug designing.
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Affiliation(s)
- Anuradha D. S.
- Department
of Mathematics, School of Advanced Sciences, Vellore Institute of Technology, Chennai 632014, India
| | - Konsalraj Julietraja
- Department
of Mathematics, School of Engineering, Presidency
University, Bengaluru 560064, India
| | - B. Jaganathan
- Department
of Mathematics, School of Advanced Sciences, Vellore Institute of Technology, Chennai 632014, India
| | - Ammar Alsinai
- Department
of Mathematics, Ibb University, Ibb 3000, Yemen
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Xavier DA, Julietraja K, Alsinai A, Akhila S. Prediction of properties of boron [Formula: see text]-icosahedral nanosheet by bond-addictive [Formula: see text]-polynomial. Sci Rep 2024; 14:1197. [PMID: 38216625 PMCID: PMC10786921 DOI: 10.1038/s41598-024-51642-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 01/08/2024] [Indexed: 01/14/2024] Open
Abstract
Nanosheets with boron elements have excellent characteristics which makes the boron polymorphs unique and super hard. A boron [Formula: see text]-icosahedral nanosheet in crystalline form has superconductivity and thermal electronic properties. In theoretical chemistry and QSPR/QSAR study, a topological descriptor is an important analytical tool. It helps to analyse the structure and its properties and also correlates the with numerical expressions. The valence-based M-polynomial provides quantitative measures of molecular properties based on their geometric, electrostatic, and quantum chemical characteristics. In this article, the QSPR/QSAR analysis is performed for this nanosheet and the analytical expressions are validated with original synthesized data, and received excellent correlation values of 0.9835 and 0.9932. The mathematical expression of the structure is analysed and the indices are compared graphically and numerically.
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Affiliation(s)
- D Antony Xavier
- Department of Mathematics, Loyola College (Affiliated to the University of Madras), Chennai, India
| | - K Julietraja
- Department of Mathematics, School of Engineering, Presidency University, Bengaluru, 560064, India
| | - Ammar Alsinai
- Department of Mathematics, Ibb university, Ibb, Yemen.
- Department of Mathematics, Kuvempu University, Shivamogga, Karnataka, 577451, India.
| | - S Akhila
- Department of Mathematics, Loyola College (Affiliated to the University of Madras), Chennai, India
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Murugan G, Julietraja K, Alsinai A. Computation of Neighborhood M-Polynomial of Cycloparaphenylene and Its Variants. ACS OMEGA 2023; 8:49165-49174. [PMID: 38162762 PMCID: PMC10753576 DOI: 10.1021/acsomega.3c07294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 01/03/2024]
Abstract
In the domains of materials and chemical and physical sciences, a significant aspiration is to design and synthesize extensively conjugated macrocycles possessing precisely defined structures. This objective bears substantial promise across a wide range of scientific and technological fields. These molecules offer a unique blend of structural complexity and electronic properties that make them particularly intriguing for both theoretical and practical reasons. Cycloparaphenylene (CPP) radial π-conjugated macrocycles is a specific example of a conjugated macrocycle that has garnered significant attention in the field of chemistry and materials science. It consists of a series of benzene rings linked together in a cyclic arrangement, forming a one-dimensional structure. CPP systems have been on the rise due to their novel and captivating characteristics, encompassing properties, such as electronic properties, heightened electrical conductivity, optoelectronic traits, and mechanical properties. Given the potential applications of CPP, it becomes essential to analyze this structure from a theoretical standpoint. Molecular descriptors play a crucial role in the theoretical analysis of such structures. Research on molecular descriptors has unequivocally demonstrated their significant correlation with the diverse properties of chemical compounds. This article illustrates the neighborhood sum M-polynomial-based descriptors' calculation using edge-partition techniques for CPP and its sidewalls consisting of pyrene and hexabenzocoronene units. The examination of these neighborhood sum M-polynomial-based descriptors for these structures has the potential to establish a foundational framework for delving deeper into CPP and its associated properties.
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Affiliation(s)
- Govindhan Murugan
- Department
of Mathematics, Chennai Institute of Technology, Chennai 600069, India
| | - Konsalraj Julietraja
- Department
of Mathematics, School of Engineering, Presidency
University, Bengaluru 560064, India
| | - Ammar Alsinai
- Department
of Mathematics, Ibb University, Ibb 70270, Yemen
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Xavier DA, Julietraja K, Nair A T. Distance Based Structural Descriptors of Non-conjugated Ethylene Oxide Dendritic Core Decorated with Tetraphenylethylene. Polycycl Aromat Compd 2023. [DOI: 10.1080/10406638.2023.2179642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- D. Antony Xavier
- Department of Mathematics, Loyola College (Affiliated to the University of Madras), Chennai, India
| | - K. Julietraja
- Department of Mathematics, St Joseph’s College of Engineering(Autonomous), OMR, Chennai, India
| | - Theertha Nair A
- Department of Mathematics, Loyola College (Affiliated to the University of Madras), Chennai, India
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Yang J, Konsalraj J, Raja S. AA. Neighbourhood Sum Degree-Based Indices and Entropy Measures for Certain Family of Graphene Molecules. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010168. [PMID: 36615362 PMCID: PMC9822020 DOI: 10.3390/molecules28010168] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022]
Abstract
A topological index (TI) is a real number that defines the relationship between a chemical structure and its properties and remains invariant under graph isomorphism. TIs defined for chemical structures are capable of predicting physical properties, chemical reactivity and biological activity. Several kinds of TIs have been defined and studied for different molecular structures. Graphene is the thinnest material known to man and is also extremely strong while being a good conductor of heat and electricity. With such unique features, graphene and its derivatives have found commercial uses and have also fascinated theoretical chemists. In this article, the neighbourhood sum degree-based M-polynomial and entropy measures have been computed for graphene, graphyne and graphdiyne structures. The proper analytical expressions for these indices are derived. The obtained results will enable theoretical chemists to study these exciting structures further from a structural perspective.
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Affiliation(s)
- Jun Yang
- School of Economics and Law, Chaohu University, Chaohu 238000, China
| | - Julietraja Konsalraj
- Department of Mathematics, St. Joseph’s College of Engineering, OMR, Chennai 600119, India
- Correspondence:
| | - Arul Amirtha Raja S.
- Department of Mathematics, St. Joseph’s College of Engineering, OMR, Chennai 600119, India
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Das S, Rai S, Mandal M. M-polynomial and Correlated Topological Indices of Antiviral Drug Molnupiravir Used as a Therapy for COVID-19. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2131854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Shibsankar Das
- Department of Mathematics, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Shikha Rai
- Department of Mathematics, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Modhuleena Mandal
- Subject Matter Expert in Biology, Chegg India Private Limited, New Delhi, India
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Theoretical Analysis of Superphenalene Using Different Kinds of VDB Indices. J CHEM-NY 2022. [DOI: 10.1155/2022/5683644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Topological indices (TIs) are numerical quantities that enable theoretical chemists to analyse molecular structures mathematically. These TIs are essential to exploring chemical compounds using theoretical techniques like QSAR/QSPR methods. Superphenalene is a large polycyclic aromatic hydrocarbon molecule which has been quickly gaining importance as a building block for alternate energy providers due to its photovoltaic properties. The exciting features of this compound, coupled with its potential applications, warrant an investigation of its nature and properties from a structural perspective. The objective of this research is to compute the proper analytical expressions of four kinds of vertex degree-based (VDB) indices for superphenalene. The numerical values of these indices and 3D graphical representations also help in understanding the relationship between the VDB indices of the compound and its underlying chemical structure quantitatively.
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Topological Study of 6.82 D Carbon Allotrope Structure. Symmetry (Basel) 2022. [DOI: 10.3390/sym14051037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Carbonallotropes are widely available and can be found in the atmosphere, the earth’s crust, and in living creatures in myriad forms. Allotropes are also used in several fields, including for medicinal and biological applications, due to their intriguing properties such as low resistance, high electron mobility, abnormal quantum hall effect, unconventional superconductivity in graphene, and so on. The theoretical analysis of carbon allotropes can hence be quite useful as it leads to a better understanding of the nature and behavior of these ubiquitous materials and also opens the door for even better applications. The objective of this research is to theoretically analyze the carbon allotrope by using four kinds of vertex degree based (VDB) topological indices (Tis), namely VDB multiplicative topological indices, VDB indices using M-Polynomial, VDB entropy measures, and irregularity indices. This analysis will extend the current body of knowledge available for this allotrope and help future researchers in the synthesis of new allotropes.
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Gayathri V, Muthucumaraswamy R, Prabhu S, Farahani M. Omega, Theta, PI, Sadhana polynomials, and subsequent indices of convex benzenoid system. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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