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Al-Otaibi JS, Mary YS, Mary YS, Mondal A, Acharjee N, Rajendran Nair DS. Investigation of the interaction of thymine drugs with Be 12O 12 and Ca 12O 12 nanocages: A quantum chemical study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123728. [PMID: 38056182 DOI: 10.1016/j.saa.2023.123728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/28/2023] [Accepted: 12/01/2023] [Indexed: 12/08/2023]
Abstract
Based on the DFT in a Wb97xd/6-311+G* level of theory, the interaction of thymine derivatives with Be12O12 and Ca12O12 nanocages was investigated. It was found that adsorption energies of thymine molecules on the Be12/Ca12-O12 surface was around -43.16, -60.06 and -29.62, -50.71, -45.95, -30.27 kcal/mol, for thymine (TH1), 1-amino thymine (TH2) and thymine glycol (TH3), respectively and this result supported the drug's adsorption. Additionally, according to the FMOs and MEP studies, a charge transfer from TH's to nanocages. Additionally, both molecular orbitals demonstrate that the LUMO and HOMO are primarily found on the BeO's surface.
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Affiliation(s)
- Jamelah S Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
| | - Y Sheena Mary
- Department of Physics, FMNC, University of Kerala, Kollam, Kerala, India
| | | | - Asmita Mondal
- Department of Chemistry, Durgapur Government College, J. N. Avenue, Paschim Bardhaman, West Bengal, India
| | - Nivedita Acharjee
- Department of Chemistry, Durgapur Government College, J. N. Avenue, Paschim Bardhaman, West Bengal, India
| | - Deepthi S Rajendran Nair
- Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
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2
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Ogunwale G, Louis H, Unimuke TO, Mathias GE, Owen AE, Edet HO, Enudi OC, Oluwasanmi EO, Adeyinka AS, Doust Mohammadi M. Interaction of 5-Fluorouracil on the Surfaces of Pristine and Functionalized Ca 12O 12 Nanocages: An Intuition from DFT. ACS OMEGA 2023; 8:13551-13568. [PMID: 37091381 PMCID: PMC10116506 DOI: 10.1021/acsomega.2c03635] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 01/11/2023] [Indexed: 05/03/2023]
Abstract
The utilization of nanostructured materials for several biomedical applications has tremendously increased over the last few decades owing to their nanosizes, porosity, large surface area, sensitivity, and efficiency as drug delivery systems. Thus, the incorporation of functionalized and pristine nanostructures for cancer therapy offers substantial prospects to curb the persistent problems of ineffective drug administration and delivery to target sites. The potential of pristine (Ca12O12) and formyl (-CHO)- and amino (-NH2)-functionalized (Ca12O12-CHO and Ca12O12-NH2) derivatives as efficient nanocarriers for 5-fluorouracil (5FU) was studied at the B3LYP-GD3(BJ)/6-311++G(d,p) theoretical level in two electronic media (gas and solvent). To effectively account for all adsorption interactions of the drug on the investigated surfaces, electronic studies as well as topological analysis based on the quantum theory of atoms in molecules (QTAIM) and noncovalent interactions were exhaustively utilized. Interestingly, the obtained results divulged that the 5FU drug interacted favorably with both Ca12O12 and its functionalized derivatives. The adsorption energies of pristine and functionalized nanostructures were calculated to be -133.4, -96.9, and -175.6 kcal/mol, respectively, for Ca12O12, Ca12O12-CHO, and Ca12O12-NH2. Also, both topological analysis and NBO stabilization analysis revealed the presence of interactions among O3-H32, O27-C24, O10-C27, and N24-H32 atoms of the drug and the surface. However, 5FU@Ca12O12-CHO molecules portrayed the least adsorption energy due to considerable destabilization of the molecular complex as revealed by the computed deformation energy. Therefore, 5FU@Ca12O12 and 5FU@Ca12O12-NH2 acted as better nanovehicles for 5FU.
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Affiliation(s)
- Goodness
J. Ogunwale
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar540221, Nigeria
- Department
of Chemistry, Faculty of Science, University
of Ibadan, Ibadan200005, Nigeria
| | - Hitler Louis
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar540221, Nigeria
- Department
of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar540221, Nigeria
| | - Tomsmith O. Unimuke
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar540221, Nigeria
- Department
of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar540221, Nigeria
| | - Gideon E. Mathias
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar540221, Nigeria
- Department
of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar540221, Nigeria
| | - Aniekan E. Owen
- School
of Chemistry, University of St Andrews, St AndrewsKY16 9ST, Scotland
| | - Henry O. Edet
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar540221, Nigeria
- Department
of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar540221, Nigeria
| | - Obieze C. Enudi
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar540221, Nigeria
- Department
of Chemistry, Faculty of Science, University
of Ibadan, Ibadan200005, Nigeria
| | - Esther O. Oluwasanmi
- Computational
and Bio-Simulation Research Group, University
of Calabar, Calabar540221, Nigeria
- Department
of Chemistry, Faculty of Science, University
of Ibadan, Ibadan200005, Nigeria
| | - Adedapo S. Adeyinka
- Department
of Chemical Sciences, University of Johannesburg, Johannesburg2006, South-Africa
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3
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Li LK, Ma YQ, Li KN, Xie WL, Huang B. Structural and electronic properties of H 2, CO, CH 4, NO, and NH 3 adsorbed onto Al 12Si 12 nanocages using density functional theory. Front Chem 2023; 11:1143951. [PMID: 36874075 PMCID: PMC9978340 DOI: 10.3389/fchem.2023.1143951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 02/07/2023] [Indexed: 02/18/2023] Open
Abstract
In this study, the adsorption of gases (CH4, CO, H2, NH3, and NO) onto Al12Si12 nanocages was theoretically investigated using density functional theory. For each type of gas molecule, two different adsorption sites above the Al and Si atoms on the cluster surface were explored. We performed geometry optimization on both the pure nanocage and nanocages after gas adsorption and calculated their adsorption energies and electronic properties. The geometric structure of the complexes changed slightly following gas adsorption. We show that these adsorption processes were physical ones and observed that NO adsorbed onto Al12Si12 had the strongest adsorption stability. The E g (energy band gap) value of the Al12Si12 nanocage was 1.38 eV, indicating that it possesses semiconductor properties. The E g values of the complexes formed after gas adsorption were all lower than that of the pure nanocage, with the NH3-Si complex showing the greatest decrease in E g. Additionally, the highest occupied molecular orbital and the lowest unoccupied molecular orbital were analyzed according to Mulliken charge transfer theory. Interaction with various gases was found to remarkably decrease the E g of the pure nanocage. The electronic properties of the nanocage were strongly affected by interaction with various gases. The E g value of the complexes decreased due to the electron transfer between the gas molecule and the nanocage. The density of states of the gas adsorption complexes were also analyzed, and the results showed that the E g of the complexes decreased due to changes in the 3p orbital of the Si atom. This study theoretically devised novel multifunctional nanostructures through the adsorption of various gases onto pure nanocages, and the findings indicate the promise of these structures for use in electronic devices.
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Affiliation(s)
- Liu-Kun Li
- Ningxia Key Laboratory of Intelligent Sensing for the Desert Information, School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan, China
| | - Yan-Qiu Ma
- Ningxia Key Laboratory of Intelligent Sensing for the Desert Information, School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan, China
| | - Kang-Ning Li
- Ningxia Key Laboratory of Intelligent Sensing for the Desert Information, School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan, China
| | - Wen-Li Xie
- Basic Education Department, Guangdong Ocean University, Yangjiang, China
| | - Bin Huang
- Enviromental Monitoring Site of Ningxia Ningdong Energy and Chemical Industry Base, Yinchuan, China
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4
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Bozhenko KV, Utenyshev AN, Gutsev LG, Aldoshin SM, Gutsev GL. Spin-Dependent Interactions of Fe2On Clusters with H2 and O2 Molecules. RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s0036023622601751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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5
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Computational study of the effects of static electric field on the interaction of 5-Fluorouracil anti-cancer drug with pristine and Sc- and Ti-doped B12P12 nanocage as drug delivery. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02486-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Kadhim MM, Taban TZ, Obaid RF, Almashhadani HA, Shadhar MH, Bustani GS, Rheima AM, Mohamadi A. A computational study on the potential application of Ca12O12 cluster for sensing of fungicide molecule. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1007/s43153-022-00262-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Kartika R, Alsultany FH, Turki Jalil A, Mahmoud MZ, Fenjan MN, Rajabzadeh H. Ca12O12 nanocluster as highly sensitive material for the detection of hazardous mustard gas: Density-functional theory. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2021.109174] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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8
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Bera A, Hasan MN, Chatterjee A, Mukherjee D, Pal SK. Dual Sensitization via Electron and Energy Harvesting in a Nanohybrid for Improvement of Therapeutic Efficacy. ACS PHYSICAL CHEMISTRY AU 2021; 2:171-178. [PMID: 36855571 PMCID: PMC9718314 DOI: 10.1021/acsphyschemau.1c00033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We demonstrate experimental evidence of the effect of surface plasmon resonance of noble metal nanoparticles (NPs) on the activity of a well-known biomedicinal drug in the proximity of a semiconductor having a wide band gap for enhanced photodynamic therapy (PDT) efficacy. We have chosen riboflavin (Rf) (or vitamin B2) as a model photosensitizer, attached with ZnO NPs and further attached with gold (Au) NP-decorated ZnO to increase the efficiency. The synthesized nanohybrids are characterized with the help of different microscopic, optical spectroscopic, and density functional theory (DFT)-based techniques. The DFT and time-dependent DFT-based calculations validate the experimental findings. A detailed ultrafast spectroscopic study has been carried out further to study the excited-state charge dynamics in the interface of the nanohybrids. The occurrence of a Förster resonance energy transfer (FRET) between Rf and Au has been found to be the key reason for the increased efficiency in the Rf-ZnO-Au nanohybrid over the Rf-ZnO one. The dipolar coupling between Au and Rf in the Rf-ZnO-Au nanohybrid further facilitates the generation of reactive oxygen species (ROS) in comparison to Rf-ZnO under blue-light irradiation. The greater efficiency in ROS generation by the Rf-ZnO-Au nanohybrid has been utilized for antimicrobial action against methicillin-resistant S. aureus (MRSA). Overall, the present study highlights the dual sensitization for achieving enhanced electron injection efficiency in the Rf-ZnO-Au nanohybrid in order to use it as an antibacterial agent that could be translated in PDT.
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9
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Yari S, Mahdavian L, Dehghanpour N. Computational Investigation for the Removal of Hydrocarbon Sulfur Compounds by Zinc Oxide Nano-Cage (Zn12O12-NC). Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.2015403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Sajjad Yari
- Department of Chemistry, Doroud Branch, Islamic Azad University, Doroud, Iran
| | - Leila Mahdavian
- Department of Chemistry, Doroud Branch, Islamic Azad University, Doroud, Iran
| | - Negar Dehghanpour
- Process Engineering Department, Lorestan Petrochemical Company, Bakhtar Petrochemical Holding, Khoramabad, Iran
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10
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Heravi MRP, Ebadi AG, Amini I, Mahmood HK, Alsobaei SA, Mohamadi A. Quantum chemical studies of mercaptan gas detection with calcium oxide nanocluster. J Mol Model 2021; 27:345. [PMID: 34748084 DOI: 10.1007/s00894-021-04959-y] [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: 05/14/2021] [Accepted: 10/20/2021] [Indexed: 12/07/2022]
Abstract
The electronic sensitivity and adsorption behavior for mercaptan natural gas of a Ca12O12 nanocluster were studied via ab initio computations. To be more specific, to fully grasp the influence of mercaptan molecules on the chemical and electronic features of Ca12O12 nanocluster, some parameters, namely, charge transfer of natural bond orbital, molecular electrostatic potential, binding energies, and frontier molecular orbitals, are computed. The interaction between CH4S molecule and calcium atoms of Ca12O12 nanocluster through the sulfur head is strong. This strong interaction leads to a considerable transfer of charge from CH4S to the nanocluster. After mercaptan adsorption, the existing energy gap between two levels, the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) of the nanostructure, dropped by 2.21 eV, illustrating that the dissociation process has extensively increased the electrical conductance of nanostructure. This electrical signal can help to detect CH4S molecules. Moreover, it could be concluded that Ca12O12 nanocluster has a short recovery time. In addition, solvent considerably influences the geometry factors and electronic features of CH4S/Ca12O12 complexes, and the interactions between species are significantly weaker in the aqueous medium compared with those in the vacuum.
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Affiliation(s)
| | - Abdol Ghaffar Ebadi
- Department of Agriculture, Jouybar Branch, Islamic Azad University, Jouybar, Iran
| | - Issa Amini
- Department of Chemistry, Payame Noor University, Tehran, Iran.
| | | | | | - Ali Mohamadi
- College of Science, Islamic Azad University, Tehran, Iran
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11
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Ahsan A, Khan S, Gilani MA, Ayub K. Endohedral metallofullerene electrides of Ca12O12 with remarkable nonlinear optical response. RSC Adv 2021; 11:1569-1580. [PMID: 35424084 PMCID: PMC8693602 DOI: 10.1039/d0ra08571e] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/21/2020] [Indexed: 11/21/2022] Open
Abstract
Herein, the structural, electronic, thermodynamic, linear and nonlinear optical properties of inorganic electrides, generated by alkali metal doping in group II–VI Ca12O12 fullerene, are studied. Endohedral doping of alkali metal leads to the formation of electrides whereas no such phenomenon is seen for exohedral doping. The electride nature of the endohedral fullerenes is confirmed through the analysis of frontier molecular orbitals. The results show that doping of alkali metal atoms leads to a reduction of the HOMO–LUMO gap and increase of the dipole moment, polarizability and hyperpolarizability of nanocages. Doping causes shifting of electrons from alkali metal atoms towards the Ca12O12 nanocage, which serve as excess electrons. Furthermore, the participation of excess electrons for enhancing the NLO response of these nanocages has been confirmed through the calculation of hyperpolarizability (βo). For exploring the controlling factors of hyperpolarizability, a two level model has been employed and the direct relation of hyperpolarizability with Δμ & fo, while an inverse relation of hyperpolarizability with ΔE has been studied. The electrides possess remarkable nonlinear response where the highest hyperpolarizability can reach up to 1.0 × 106 a.u. for endo-K@Ca12O12. This electride has the lowest ΔE of 0.63 eV among all compounds studied here. These intriguing results will be expedient for promoting the potential applications of the Ca12O12-based nano systems in high-performance nonlinear optical (NLO) materials. Electride formation by alkali metal doping with a drastic increase in hyperpolarizability![]()
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Affiliation(s)
- Annum Ahsan
- Department of Chemistry
- COMSATS University Islamabad
- Abbottabad Campus
- Abbottabad
- Pakistan
| | - Saima Khan
- Department of Chemistry
- COMSATS University Islamabad
- Abbottabad Campus
- Abbottabad
- Pakistan
| | - Mazhar Amjad Gilani
- Department of Chemistry
- COMSATS University Islamabad
- Lahore Campus
- Lahore 54000
- Pakistan
| | - Khurshid Ayub
- Department of Chemistry
- COMSATS University Islamabad
- Abbottabad Campus
- Abbottabad
- Pakistan
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12
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Feasibility of Ca12O12 Nanocluster in Lithium and Sodium Atom/Ion Batteries: DFT Study. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01788-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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13
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Rezaei-Sameti M, Abdoli S. The capability of the pristine and (Sc, Ti) doped Be12O12 nanocluster to detect and adsorb of Mercaptopyridine molecule: A first principle study. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127593] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Zhihong Y, Ye Y, Pejhan A, Nasr A, Nourbakhsh N, Tayebee R. A theoretical study on the pure and doped ZnO nanoclusters as effective nanobiosensors for
5‐
fluorouracil anticancer drug adsorption. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5534] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Y. Zhihong
- Department of Oncology, Henan Province Hospital of TCMThe Second Affiliated Hospital of Henan University of TCM Zhengzhou City Henan Province 450000 China
| | - Y. Ye
- Department of UltrasoundShandong Provincial Hospital Affiliated to Shandong First Medical University Shandong Province Jinan 250012 China
| | - A. Pejhan
- Cellular and Molecular Research CenterSabzevar University of Medical Sciences Sabzevar Iran
| | - A.H. Nasr
- Department of Chemistry, School of SciencesHakim Sabzevari University Sabzevar 96179‐76487 Iran
| | - N. Nourbakhsh
- Department of Chemistry, School of SciencesHakim Sabzevari University Sabzevar 96179‐76487 Iran
| | - R. Tayebee
- Department of Chemistry, School of SciencesHakim Sabzevari University Sabzevar 96179‐76487 Iran
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15
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Farmanzadeh D, Keyhanian M. Computational assessment on the interaction of amantadine drug with B12N12 and Zn12O12 nanocages and improvement in adsorption behaviors by impurity Al doping. Theor Chem Acc 2018. [DOI: 10.1007/s00214-018-2400-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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16
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Gutsev GL, Bozhenko KV, Gutsev LG, Utenyshev AN, Aldoshin SM. Dependence of Properties and Exchange Coupling Constants on the Charge in the Mn2On and Fe2On Series. J Phys Chem A 2018; 122:5644-5655. [DOI: 10.1021/acs.jpca.8b03496] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- G. L. Gutsev
- Department of Physics, Florida A&M University, Tallahassee, Florida 32307, United States
| | - K. V. Bozhenko
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Moscow Region, Russia
- Department of Physical and Colloid Chemistry, Peoples’ Friendship University of Russia, Moscow 117198, Russia
| | - L. G. Gutsev
- Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - A. N. Utenyshev
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Moscow Region, Russia
| | - S. M. Aldoshin
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Moscow Region, Russia
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17
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Munsif S, Ayub K. Diffusion of alkali metal atoms (Li, Na, K) on aluminum nitride and boron nitride nanocages; a density functional theory study. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Rad AS, Aghaei SM, Pazoki H, Binaeian E, Mirzaei M. Surface interaction of H2
O and H2
S onto Ca12
O12
nanocluster: Quantum-chemical analyses. SURF INTERFACE ANAL 2018. [DOI: 10.1002/sia.6382] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ali Shokuhi Rad
- Department of Chemical Engineering; Qaemshahr Branch, Islamic Azad University; Qaemshahr Iran
| | - Sadegh Mehdi Aghaei
- Quantum Electronic Structures Technology Laboratory, Department of Electrical and Computer Engineering; Florida International University; Miami FL 33174 USA
| | - Hossein Pazoki
- Department of Chemical Engineering; Qaemshahr Branch, Islamic Azad University; Qaemshahr Iran
| | - Ehsan Binaeian
- Department of Chemical Engineering; Qaemshahr Branch, Islamic Azad University; Qaemshahr Iran
| | - Mahmoud Mirzaei
- Bioinformatics Research Center, School of Pharmacy and Pharmaceutical Sciences; Isfahan University of Medical Sciences; Isfahan Iran
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19
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Gutsev GL, Belay KG, Gutsev LG, Ramachandran BR, Jena P. Effect of hydrogenation on the structure and magnetic properties of an iron oxide cluster. Phys Chem Chem Phys 2018; 20:4546-4553. [DOI: 10.1039/c7cp08224j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogenation of an iron oxide particle influences the geometrical topology and total magnetic moment and invokes different superexchange mechanisms.
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Affiliation(s)
- G. L. Gutsev
- Department of Physics
- Florida A&M University
- Tallahassee
- USA
| | - K. G. Belay
- Department of Physics
- Florida A&M University
- Tallahassee
- USA
| | - L. G. Gutsev
- Department of Physics
- Virginia Commonwealth University
- Richmond
- USA
| | | | - P. Jena
- Department of Physics
- Virginia Commonwealth University
- Richmond
- USA
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20
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The influence of Sc doping on structural, electronic and optical properties of Be 12O 12, Mg 12O 12 and Ca 12O 12 nanocages: a DFT study. J Mol Model 2017; 23:82. [PMID: 28213715 DOI: 10.1007/s00894-017-3243-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 01/23/2017] [Indexed: 10/20/2022]
Abstract
Density functional theory (DFT) calculations were used to study the effect of scandium doping on the structural, energetic, electronic, linear and nonlinear optical (NLO) properties of Be12O12, Mg12O12 and Ca12O12 nanoclusters. Scandium (Sc) doping on nanoclusters leads to narrowing of their E g, which enhances their conductance greatly. Also, the polarizability (α) and first hyperpolarizability (β0) of nanoclusters were dramatically increased as Be, Mg or Ca atoms are substituted with a Sc atom. Among all clusters, α and β0 values for Sc-doped Ca12O12 were the largest. Consequently, the effect of the doping atom, as well as of cluster size, on electronic and optical properties was explored. Time dependent (TD)-DFT calculations were also carried out to confirm the β0 values; the results show that the higher value of first hyperpolarizability belongs to Sc-doped Ca12O12, which has the smallest transition energy (ΔEgn). The results obtained show that these clusters can be candidates for using in electronic devices and NLO materials in industry.
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21
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Fanchiotti BG, Machado MPZ, de Paula LC, Durmuş M, Nyokong T, da Silva Gonçalves A, da Silva AR. The photobleaching of the free and encapsulated metallic phthalocyanine and its effect on the photooxidation of simple molecules. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 165:10-23. [PMID: 27755995 DOI: 10.1016/j.jphotobiol.2016.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 09/06/2016] [Accepted: 10/10/2016] [Indexed: 11/25/2022]
Abstract
The photobleaching of an unsubstituted phthalocyanine (gallium(III) phthalocyanine chloride (GaPc)) and a substituted phthalocyanine (1,4-(tetrakis[4-(benzyloxy)phenoxy]phthalocyaninato) indium(III) chloride (InTBPPc)) was monitored for the free photosensitizers and for the phthalocyanines encapsulated into nanoparticles of PEGylated poly(D,L-lactide-co-glycolide) (PLGA-PEG). Phosphate-buffered solutions (PBS) and organic solutions of the free GaPc or the free InTBPPc, and suspensions of each encapsulated photosensitizer (2-15μmol/L) were irradiated using a laser diode of 665nm with a power of 1-104mW and a light dose of 7.5J/cm2. The relative absorbance (RA) of the free GaPc dissolved in 1-methyl-2-pyrrolidone (MP) decreased 8.4 times when the laser power increased from 1mW to 104mW. However, the free or encapsulated GaPc did not suffer the photobleaching in PBS solution. The RA values decreased 2.4 times and 22.2 times for the free InTBPPc dissolved in PBS solution and in dimethylformamide (DMF), respectively, but the encapsulated InTBPPc was only photobleached when the laser power was 104mW at 8μmol/L. The increase of the free GaPc concentration favored the photobleaching in MP until 8μmol/L while the increase from 2μmol/L to 5μmol/L reduced the photodegradation in PBS solution. However, the photobleaching of the free InTBPPc in DMF or in PBS solution, and of each encapsulated photosensitizer was not influenced by increasing the concentration. The influence of the photobleaching on the capability of the free and encapsulated GaPc and InTBPPc to photooxidate the simple molecules was investigated monitoring the fluorescence of dimethylanthracene (DMA) and the tryptophan (Trp). Free InTBPPc was 2.0 and 1.8 times faster to photooxidate the DMA and Trp than it was the free GaPc, but the encapsulated GaPc was 3.4 times more efficient to photooxidize the Trp than it was the encapsulated InTBPPc due to the photodegradation suffered by the encapsulated InTBPPc. The participation of the singlet oxygen was confirmed with the sodium azide in the photobleaching of all free and encapsulated photosensitizer, and in the photooxidation of the DMA and Trp. The asymmetry of InTBPPc increased the solubility of the free compound, decreasing the aggregation state of the photosensitizer and favoring the photobleaching process. The encapsulation shows capability in decreasing the photobleaching of both photosensitizers but the confocal micrographs showed that the increase of the solubility favored the InTBPPc photobleaching during the acquisition of optical cross section.
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Affiliation(s)
| | | | | | - Mahmut Durmuş
- Gebze Technical University, Department of Chemistry, PO Box 141, Gebze 41400, Turkey
| | - Tebello Nyokong
- Rhodes University, Department of Chemistry, PO Box 94, Grahamstown 6140, South Africa
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22
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Gutsev GL, Belay KG, Gutsev LG, Ramachandran BR. Structure and properties of iron oxide clusters: From Fe
6
to Fe
6
O
20
and from Fe
7
to Fe
7
O
24. J Comput Chem 2016; 37:2527-36. [DOI: 10.1002/jcc.24478] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 08/05/2016] [Accepted: 08/10/2016] [Indexed: 12/14/2022]
Affiliation(s)
| | - Kalayu G. Belay
- Department of PhysicsFlorida A&M UniversityTallahassee Florida32307
| | - Lavrenty G. Gutsev
- Department of Chemistry and BiochemistryFlorida State UniversityTallahassee, Florida32306
| | - Bala R. Ramachandran
- College of Engineering & Science, Louisiana Tech UniversityRuston Louisiana71272
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23
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Gutsev GL, Belay KG, Bozhenko KV, Gutsev LG, Ramachandran BR. A comparative study of small 3d-metal oxide (FeO)n, (CoO)n, and (NiO)n clusters. Phys Chem Chem Phys 2016; 18:27858-27867. [DOI: 10.1039/c6cp03241a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Geometrical and electronic structures of the 3d-metal oxide clusters (FeO)n, (CoO)n, and (NiO)n are computed using density functional theory with the generalized gradient approximation in the range of 1 ≤ n ≤ 10.
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Affiliation(s)
- G. L. Gutsev
- Department of Physics
- Florida A&M University
- Tallahassee
- USA
| | - K. G. Belay
- Department of Physics
- Florida A&M University
- Tallahassee
- USA
| | - K. V. Bozhenko
- Institute of Problems of Chemical Physics
- Russian Academy of Sciences
- Chernogolovka 142432
- Russia
- Department of Physical and Colloid Chemistry
| | - L. G. Gutsev
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
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