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Badran HM, Eid KM, Al-Nadary HO, Ammar HY. DFT-D3 and TD-DFT Studies of the Adsorption and Sensing Behavior of Mn-Phthalocyanine toward NH 3, PH 3, and AsH 3 Molecules. Molecules 2024; 29:2168. [PMID: 38792030 PMCID: PMC11124348 DOI: 10.3390/molecules29102168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/01/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024] Open
Abstract
This study employs density functional theory (DFT) calculations at the B3LYP/6-311+g(d,p) level to investigate the interaction of XH3 gases (X = N, P, As) with the Mn-phthalocyanine molecule (MnPc). Grimme's D3 dispersion correction is applied to consider long-range interactions. The adsorption behavior is explored under the influence of an external static electric field (EF) ranging from -0.514 to 0.514 V/Å. Chemical adsorption of XH3 molecules onto the MnPc molecule is confirmed. The adsorption results in a significant decrease in the energy gap (Eg) of MnPc, indicating the potential alteration of its optical properties. Quantum theory of atoms in molecules (QTAIM) analysis reveals partially covalent bonds between XH3 and MnPc, and the charge density differenc (Δρ) calculations suggest a charge donation-back donation mechanism. The UV-vis spectrum of MnPc experiences a blue shift upon XH3 adsorption, highlighting MnPc's potential as a naked-eye sensor for XH3 molecules. Thermodynamic calculations indicate exothermic interactions, with NH3/MnPc being the most stable complex. The stability of NH3/MnPc decreases with increasing temperature. The direction and magnitude of the applied electric field (EF) play a crucial role in determining the adsorption energy (Eads) for XH3/MnPc complexes. The Eg values decrease with an increasing negative EF, which suggests that the electrical conductivity (σ) and the electrical sensitivity (ΔEg) of the XH3/MnPc complexes are influenced by the magnitude and direction of the applied EF. Overall, this study provides valuable insights into the suggested promising prospects for the utilization of MnPc in sensing applications of XH3 gases.
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Affiliation(s)
- Heba Mohamed Badran
- Physics Department, College of Science & Arts, Najran University, Najran 11001, Saudi Arabia;
| | - Khaled Mahmoud Eid
- Physics Department, Faculty of Education, Ain Shams University, Roxy, Cairo 11566, Egypt;
| | - Hatim Omar Al-Nadary
- Physics Department, College of Science & Arts, Najran University, Najran 11001, Saudi Arabia;
| | - Hussein Youssef Ammar
- Physics Department, College of Science & Arts, Najran University, Najran 11001, Saudi Arabia;
- STEM Pioneers Training Lab, Najran University, Najran 11001, Saudi Arabia
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Al-Nadary HO, Eid KM, Badran HM, Ammar HY. M-Encapsulated Be 12O 12 Nano-Cage (M = K, Mn, or Cu) for CH 2O Sensing Applications: A Theoretical Study. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:7. [PMID: 38202462 PMCID: PMC10780420 DOI: 10.3390/nano14010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/09/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024]
Abstract
DFT and TD-DFT studies of B3LYP/6-31 g(d,p) with the D2 version of Grimme's dispersion are used to examine the adsorption of a CH2O molecule on Be12O12 and MBe12O12 nano-cages (M = K, Mn, or Cu atom). The energy gap for Be12O12 was 8.210 eV, while the M encapsulation decreased its value to 0.685-1.568 eV, whereas the adsorption of the CH2O gas decreased the Eg values for Be12O12 and CuBe12O12 to 4.983 and 0.876 eV and increased its values for KBe12O12 and MnBe12O12 to 1.286 and 1.516 eV, respectively. The M encapsulation enhanced the chemical adsorption of CH2O gas with the surface of Be12O12. The UV-vis spectrum of the Be12O12 nano-cage was dramatically affected by the M encapsulation as well as the adsorption of the CH2O gas. In addition, the adsorption energies and the electrical sensitivity of the Be12O12 as well as the MBe12O12 nano-cages to CH2O gas could be manipulated with an external electric field. Our results may be fruitful for utilizing Be12O12 as well as MBe12O12 nano-cages as candidate materials for removing and sensing formaldehyde gas.
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Affiliation(s)
- Hatim Omar Al-Nadary
- Physics Department, College of Science & Arts, Najran University, Najran 11001, Saudi Arabia;
| | - Khaled Mahmoud Eid
- Physics Department, Faculty of Education, Ain Shams University, Cairo 11566, Egypt;
| | - Heba Mohamed Badran
- Physics Department, College of Science & Arts, Najran University, Najran 11001, Saudi Arabia;
| | - Hussein Youssef Ammar
- Physics Department, College of Science & Arts, Najran University, Najran 11001, Saudi Arabia;
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Vaz LM, Branco R, Morais PV, Guiomar AJ. Sterilized Polyhexanide-Releasing Chitosan Membranes with Potential for Use in Antimicrobial Wound Dressings. MEMBRANES 2023; 13:877. [PMID: 37999363 PMCID: PMC10673555 DOI: 10.3390/membranes13110877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/26/2023] [Accepted: 11/03/2023] [Indexed: 11/25/2023]
Abstract
Wound infection is a common complication of chronic wounds. It can impair healing, which may not occur without external help. Antimicrobial dressings (AMDs) are a type of external help to infected chronic wounds. In this study, highly porous membranes made of only chitosan and containing the antiseptic polyhexanide (poly(hexamethylene biguanide); PHMB) were prepared by cryogelation, aiming to be used in AMDs. These membranes exhibited a water swelling capacity of 748%, a water drop penetration time of 11 s in a dry membrane and a water vapor transmission rate of 34,400 g H2O/m2/24 h when in contact with water. The best drug loading method involved simultaneous loading by soaking in a PHMB solution and sterilization by autoclaving, resulting in sterilized, drug-loaded membranes. When these membranes and a commercial PHMB-releasing AMD were assayed under the same conditions, albeit far from the in vivo conditions, their drug release kinetics were comparable, releasing PHMB for ca. 6 and 4 h, respectively. These membranes exhibited high antibacterial activity against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa, which are bacterial species commonly found in infected wounds and blood clotting activity. The obtained results suggest that these membranes may have potential for use in the development of AMDs.
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Affiliation(s)
- Luís M. Vaz
- Chemical Process Engineering and Forest Products Research Centre, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal;
| | - Rita Branco
- Centre for Mechanical Engineering, Materials and Processes, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (R.B.); (P.V.M.)
| | - Paula V. Morais
- Centre for Mechanical Engineering, Materials and Processes, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (R.B.); (P.V.M.)
| | - António Jorge Guiomar
- Chemical Process Engineering and Forest Products Research Centre, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal;
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Celik S. DFT investigations and molecular docking as potent inhibitors of SARS-CoV-2 main protease of 4-phenylpyrimidine. J Mol Struct 2023; 1277:134895. [PMID: 36619799 PMCID: PMC9803264 DOI: 10.1016/j.molstruc.2022.134895] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/24/2022] [Accepted: 12/30/2022] [Indexed: 12/31/2022]
Abstract
In this work, quantum chemical descriptors and a vibrational analysis of 4-Phenylpyrimidine (4-PPy) were also investigated. Through conformational analysis, the most stable conformer can be determined. The geometry of the molecular structure was optimized by using the density functional theory (DFT) at the B3LYP/6-311++G(d,p) level. The theoretically obtained FT-IR and FT-Raman spectral data agree with the experimental results. UV-Vis was done in the gas phase along with different solvents by the TD-DFT method and the PCM solvent model. Molecular electrostatic potential, natural bond orbital analysis, nonlinear optical properties, and global chemical reactivity parameters were described through the DFT method. Besides, the chemical implications of a molecule were explained using an electron localization function and a local orbital locator. We attempted to detect the antiviral activity of the 4-PPy compound by predicting molecular docking into coronavirus 2 (SARS-n-CoV-2) protein structures (6LU7, 6M03, and 6W63), because COVID-19 is known to have serious adverse effects in all areas of human life worldwide, and possible drugs need to be investigated for this. The results of the docking simulation demonstrate good affinities for binding to the receptors.
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Affiliation(s)
- Sibel Celik
- Vocational School of Health Services, Ahi Evran University, Kırşehir 40200, Turkey
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Seri̇n S. A comprehensive DFT study on organosilicon-derived fungicide flusilazole and its germanium analogue: A computational approach to Si/Ge bioisosterism. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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Rajesh R, Muthu S, Sheela N. Investigations of 6-Fluoro-4-Oxo-3,4-Dihydro-2H-Chromene-2-Carboxylic Acid by Quantum Computational, Spectroscopic, TD-DFT with Various Solvents and Molecular Docking Studies. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2124284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- R. Rajesh
- Department of Physics, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College (Autonomous), Chennai, India
| | - S. Muthu
- Department of Physics, Arignar Anna Govt. Arts College, Cheyyar, India
| | - N.R. Sheela
- Department of Applied Physics, Sri Venkateswara College of Engineering (Autonomous), Chennai, India
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Salih RHH, Hasan AH, Hussein AJ, Samad MK, Shakya S, Jamalis J, Hawaiz FE, Pratama MRF. One-pot synthesis, molecular docking, ADMET, and DFT studies of novel pyrazolines as promising SARS-CoV-2 main protease inhibitors. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [PMCID: PMC9468527 DOI: 10.1007/s11164-022-04831-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pyrazoline and its derivatives have numerous prominent pharmacological effects. Focusing on its anti-viral property, we have designed and synthesized three novel pyrazoline derivatives (A1–A3) through one-pot three components and characterized them using different spectroscopic techniques (FT-IR, 1H NMR, 13C NMR, and UV). These compounds were evaluated against SARS-CoV-2 main protease utilizing in-silico molecular docking studies. The docking results displayed good inhibitory activity of the synthesized compounds. Among them, compound A2 was the most active against targeted protein. The drug-likeness and ADMET properties were predicted to have varied profiles but could still be developed, especially A2. DFT/TD-DFT calculations through B3LYP/6-311G++ level of theory were applied to provide comparable theoretical data along with MEP map and electronic energy gap of HOMO → LUMO.
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Affiliation(s)
- Rezan Huseen Hama Salih
- Department of Chemistry, College of Science, University of Garmian, Kalar, Kurdistan Region-Iraq 46021 Iraq
| | - Aso Hameed Hasan
- Department of Chemistry, College of Science, University of Garmian, Kalar, Kurdistan Region-Iraq 46021 Iraq
- Department of Chemistry, Faculty of Science, University Teknologi Malaysia, 81310 Johor Bahru, Johor Malaysia
| | - Awaz Jamil Hussein
- Department of Chemistry, College of Education, Salahaddin University, Erbil, Kurdistan Region-Iraq 44001 Iraq
| | - Mohammed Kareem Samad
- Department of Chemistry, College of Education, Salahaddin University, Erbil, Kurdistan Region-Iraq 44001 Iraq
| | - Sonam Shakya
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh, 202002 India
| | - Joazaizulfazli Jamalis
- Department of Chemistry, Faculty of Science, University Teknologi Malaysia, 81310 Johor Bahru, Johor Malaysia
| | - Farouq Emam Hawaiz
- Department of Chemistry, College of Education, Salahaddin University, Erbil, Kurdistan Region-Iraq 44001 Iraq
| | - Mohammad Rizki Fadhil Pratama
- Doctoral Program of Pharmaceutical Sciences, Universitas Airlangga, Jl Dr Ir Soekarno Kampus C UNAIR Mulyorejo, Surabaya, East Java 60115 Indonesia
- Department of Pharmacy, Universitas Muhammadiyah Palangkaraya, Jl RTA Milono Km 1.5 Pahandut, Palangka Raya, Central Kalimantan 73111 Indonesia
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Ammonia quantum tunneling in cold rare-gas He and Ar clusters and factorial design approach for methodology evaluation. J Mol Model 2022; 28:293. [PMID: 36063224 DOI: 10.1007/s00894-022-05267-9] [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: 06/03/2022] [Accepted: 08/12/2022] [Indexed: 10/14/2022]
Abstract
Quantum tunneling of the ammonia inversion motion and energy level splittings in He and Ar clusters were investigated. It was found that the double well potential (DWP) in He clusters is symmetrical and that the first layer of He atoms is able to model the system. The calculated tunneling splitting was in good agreement with the experimental, 36.4 and 24.6 cm[Formula: see text] respectively. For NH[Formula: see text] in Ar clusters, the DWP becomes slightly asymmetric, which is enough to decrease the resonance and make the symmetric DWP unable to model the system. An asymmetric potential was used and the result was in excellent agreement with the experimental splitting, of 9.0 and 10.6 cm[Formula: see text] respectively. Non-covalent interactions revealed that the asymmetry is caused by dissimilar interactions in each minimum of the double well potential. The effects of different methodologies were analyzed via a design of experiments approach. For the gas-phase NH[Formula: see text] molecule, only diffuse functions were statistically significant while for the NH[Formula: see text] embedded in He cluster both the MP2 method and polarization functions were significant. This tendency suggests higher order polarization functions may be essential to generate accurate barrier heights.
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