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Şahin S, Dege N. (E)-N-(3-chlorophenyl)-1-(5-nitro-2-(piperidin-1-yl)phenyl)methanimine: X-Ray, DFT, ADMET, Boiled-Egg Model, Druggability, Bioavailabilty, and Human Cyclophilin D (CypD) Inhibitory Activity. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131744] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Ahamed JI, Ramkumaar G, Kamalarajan P, Narendran K, Valan M, Sundareswaran T, Sundaravadivel T, Venkatadri B, Bharathi S. Novel quinoxaline derivatives of 2, 3-diphenylquinoxaline-6-carbaldehyde and 4, 4′-(6-methylquinoxaline-2,3-diyl)bis(N,N-diphenylaniline): Synthesis, structural, DFT-computational, molecular docking, antibacterial, antioxidant, and anticancer studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Mohammad Alwi M, Normaya E, Ismail H, Iqbal A, Mat Piah B, Abu Samah MA, Ahmad MN. Two-Dimensional Infrared Correlation Spectroscopy, Conductor-like Screening Model for Real Solvents, and Density Functional Theory Study on the Adsorption Mechanism of Polyvinylpolypyrrolidone for Effective Phenol Removal in an Aqueous Medium. ACS OMEGA 2021; 6:25179-25192. [PMID: 34632177 PMCID: PMC8495713 DOI: 10.1021/acsomega.1c02699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
The discharge of industrial effluents, such as phenol, into aquatic and soil environments is a global problem due to its serious negative impacts on human health and aquatic ecosystems. In this study, the ability of polyvinylpolypyrrolidone (PVPP) to remove phenol from an aqueous medium was investigated. The results showed that a significant proportion of phenol (up to 74.91%) was removed using PVPP at pH 6.5. Isotherm adsorption experiments of phenol on PVPP indicated that the best-fit adsorption was obtained using Langmuir models. The response peaks of the hydroxyl groups of phenol (OH) and the carboxyl groups (i.e., C=O) of PVPP were altered, indicating the formation of a hydrogen bond between the PVPP and phenol during phenol removal, as characterized using 1D and 2D IR spectroscopy. The resulting complexes were successfully characterized based on their thermodynamic properties, Mulliken charge, and electronic transition using the DFT approach. To clarify the types of interactions taking place in the complex systems, quantum theory of atoms in molecules (QTAIM) analysis, reduced density gradient noncovalent interaction (RDG-NCI) approach, and conductor-like screening model for real solvents (COSMO-RS) approach were also successfully calculated. The results showed that the interactions that occurred in the process of removing phenol by PVPP were through hydrogen bonding (based on RDG-NCI and COSMO-RS), which was identified as an intermediate type (∇2ρ(r) > 0 and H < 0, QTAIM). To gain a deeper understanding of how these interactions occurred, further characterization was performed based on adsorption mechanisms using molecular electrostatic potential, global reactivity, and local reactivity descriptors. The results showed that during hydrogen bond formation, PVPP acts as a nucleophile, whereas phenol acts as an electrophile and the O9 atom (i.e., donor electron) reacts with the H22 atom (i.e., acceptor electron).
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Affiliation(s)
- Muhammad
Ammar Mohammad Alwi
- Experimental
and Theoretical Research Lab, Department of Chemistry, Kulliyyah of Science, International Islamic University
of Malaysia, 25200 Kuantan, Pahang, Malaysia
| | - Erna Normaya
- Experimental
and Theoretical Research Lab, Department of Chemistry, Kulliyyah of Science, International Islamic University
of Malaysia, 25200 Kuantan, Pahang, Malaysia
- River
of Life (ROL) Kuantan Chapter, International
Islamic University of Malaysia, 25200 Kuantan, Pahang, Malaysia
- Innovative
Toyyib Environment Minds (ITEMS), International Islamic University
of Malaysia, 25200 Kuantan, Pahang, Malaysia
| | - Hakimah Ismail
- Experimental
and Theoretical Research Lab, Department of Chemistry, Kulliyyah of Science, International Islamic University
of Malaysia, 25200 Kuantan, Pahang, Malaysia
| | - Anwar Iqbal
- School
of Chemical Science, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Bijarimi Mat Piah
- Faculty
of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang, 26300 Kuantan, Pahang, Malaysia
| | - Mohd Armi Abu Samah
- Experimental
and Theoretical Research Lab, Department of Chemistry, Kulliyyah of Science, International Islamic University
of Malaysia, 25200 Kuantan, Pahang, Malaysia
- River
of Life (ROL) Kuantan Chapter, International
Islamic University of Malaysia, 25200 Kuantan, Pahang, Malaysia
- Innovative
Toyyib Environment Minds (ITEMS), International Islamic University
of Malaysia, 25200 Kuantan, Pahang, Malaysia
| | - Mohammad Norazmi Ahmad
- Experimental
and Theoretical Research Lab, Department of Chemistry, Kulliyyah of Science, International Islamic University
of Malaysia, 25200 Kuantan, Pahang, Malaysia
- River
of Life (ROL) Kuantan Chapter, International
Islamic University of Malaysia, 25200 Kuantan, Pahang, Malaysia
- Innovative
Toyyib Environment Minds (ITEMS), International Islamic University
of Malaysia, 25200 Kuantan, Pahang, Malaysia
- Drug and
Poison Call Centre, IIUM Poison Centre, International Islamic University of Malaysia, 25200 Kuantan, Pahang, Malaysia
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Raajaraman BR, Sheela NR, Muthu S. Spectroscopic, quantum computational, molecular docking and biological parameters of 4-phenylbutyrophenone: a neuroleptic agent. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01617-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Marinho MM, Almeida-Neto FWQ, Marinho EM, da Silva LP, Menezes RR, dos Santos RP, Marinho ES, de Lima-Neto P, Martins AM. Quantum computational investigations and molecular docking studies on amentoflavone. Heliyon 2021; 7:e06079. [PMID: 33553750 PMCID: PMC7851790 DOI: 10.1016/j.heliyon.2021.e06079] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/01/2020] [Accepted: 01/20/2021] [Indexed: 01/02/2023] Open
Abstract
Chagas disease is a neglected tropical disease caused by the protozoan parasite Trypanosoma cruzi, with approximately 6-7 million people infected worldwide, becoming a public health problem in tropical countries, thus generating an increasing demand for the development of more effective drugs, due to the low efficiency of the existing drugs. Aiming at the development of a new antichagasic pharmacological tool, the density functional theory was used to calculate the reactivity descriptors of amentoflavone, a biflavonoid with proven anti-trypanosomal activity in vitro, as well as to perform a study of interactions with the enzyme cruzain, an enzyme key in the evolutionary process of T-cruzi. Structural properties (in solvents with different values of dielectric constant), the infrared spectrum, the frontier orbitals, Fukui analysis, thermodynamic properties were the parameters calculated from DFT method with the monomeric structure of the apigenin used for comparison. Furthermore, molecular docking studies were performed to assess the potential use of this biflavonoid as a pharmacological antichagasic tool. The frontier orbitals (HOMO-LUMO) study to find the band gap of compound has been extended to calculate electron affinity, ionization energy, electronegativity electrophilicity index, chemical potential, global chemical hardness and global chemical softness to study the chemical behaviour of compound. The optimized structure was subjected to molecular Docking to characterize the interaction between amentoflavone and cruzain enzyme, a classic pharmacological target for substances with anti-gas activity, where significant interactions were observed with amino acid residues from each one's catalytic sites enzyme. These results suggest that amentoflavone has the potential to interfere with the enzymatic activity of cruzain, thus being an indicative of being a promising antichagasic agent.
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Affiliation(s)
- Márcia M. Marinho
- Departamento de Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Universidade Federal do Ceará, Campus Porangabussu, 60430-370, Fortaleza, Ceará, Brazil
| | - Francisco Wagner Q. Almeida-Neto
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Campus do Pici, Bloco 940, 60440-900, Fortaleza, Ceará, Brazil
| | - Emanuelle M. Marinho
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Campus do Pici, Bloco 940, 60440-900, Fortaleza, Ceará, Brazil
| | - Leonardo P. da Silva
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Campus do Pici, Bloco 940, 60440-900, Fortaleza, Ceará, Brazil
| | - Ramon R.P.P.B. Menezes
- Departamento de Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Universidade Federal do Ceará, Campus Porangabussu, 60430-370, Fortaleza, Ceará, Brazil
| | - Ricardo P. dos Santos
- Engenharia de Computação / Biotecnologia, Universidade Federal do Ceará, Campus de Sobral, 62010-560, Sobral Ceará, Brazil
| | - Emmanuel S. Marinho
- Faculdade de Filosofia Dom Aureliano Matos, Universidade Estadual do Ceará, 62930-000, Limoeiro do Norte, Ceará, Brazil
| | - Pedro de Lima-Neto
- Departamento de Química Analítica e Físico-Química, Centro de Ciências, Universidade Federal do Ceará, Campus do Pici, Bloco 940, 60440-900, Fortaleza, Ceará, Brazil
| | - Alice M.C. Martins
- Departamento de Análises Clínicas e Toxicológicas, Centro de Ciências da Saúde, Universidade Federal do Ceará, Campus Porangabussu, 60430-370, Fortaleza, Ceará, Brazil
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Kumar V, Kour P, Kumar A. LiBr-catalyzed one-pot three-component domino strategy toward the construction of β-phosphonomalonates scaffolds in aqueous conditions. PHOSPHORUS SULFUR 2019. [DOI: 10.1080/10426507.2019.1702988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Vikas Kumar
- Synthetic Organic Chemistry Lab, Faculty of Sciences, Shri Mata Vaishno Devi University, Katra, Jammu & Kashmir, India
| | - Parteek Kour
- Synthetic Organic Chemistry Lab, Faculty of Sciences, Shri Mata Vaishno Devi University, Katra, Jammu & Kashmir, India
| | - Anil Kumar
- Synthetic Organic Chemistry Lab, Faculty of Sciences, Shri Mata Vaishno Devi University, Katra, Jammu & Kashmir, India
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