Application of South African Heulandite (HEU) Zeolite for the Adsorption and Removal of Pb <sup>2 </sup> and Cd <sup>2 </sup> Ions from Aqueous Water Solution: Experimental and Computational Study DOI

Fred Sifuna Wanyonyi,

Gershom Kyalo Mutua, Michael O. Odey

et al.

Published: Jan. 1, 2023

The capacity of South African Heulandite (HEU) zeolite to remove Pb2+ and Cd2+ ions from aqueous solution was investigated using batch experiments molecular simulations studies. effect different factors on the adsorption these onto investigated; contact time, initial metal ion concentration amount HEU adsorbent. Molecular done Monte Carlo density functional theory. Experimental results obtained indicate that maximum for two occur at pH 5 after 240 minutes time. percent removal water by were 49.9% 29.2%, respectively which agrees with simulation 43.4% 26.2%. follows Langmuir isotherm. From findings, window is equidistant adjacent oxygen atoms within structure while adsorbed in upper left side 8-ring window. It observed performance can significantly be improved doping germanium, aluminum, thallium indium, sodium cations. These application as an adsorbent holds a great promise heavy solutions.

Language: Английский

Electrocatalytic activity of metal encapsulated, doped, and engineered fullerene-based nanostructured materials towards hydrogen evolution reaction DOI Creative Commons
Hitler Louis, Onyinye J. Ikenyirimba, Tomsmith O. Unimuke

et al.

Scientific Reports, Journal Year: 2022, Volume and Issue: 12(1)

Published: Sept. 16, 2022

The utilization of nanostructured materials as efficient catalyst for several processes has increased tremendously, and carbon-based encompassing fullerene its derivatives have been observed to possess enhanced catalytic activity when engineered with doping or decorated metals, thus making them one the most promising nanocage hydrogen evolution reaction (HER) during electro-catalysis. Prompted by these, reported electrochemical, electronic stability advantage, an attempt is put forward herein inspect metal encapsulated, doped, dependent HER C24 effective electro-catalyst HER. Density functional theory (DFT) calculations utilized evaluate four proposed bare systems: (C24), calcium encapsulated (CaencC24), nickel-doped (NidopCaencC24), silver (AgdecNidopCaencC24) at TPSSh/GenECP/6-311+G(d,p)/LanL2DZ level theory. obtained results divulged that, a potential decrease in energy gap (Egap) occurred systems, while sparing increase was upon adsorption onto surfaces, these surfaces where also maintain least EH–L AgdecNidopCaencC24 surface exhibited electrocatalytic compared others. showed that properties systems evinced correspondent result their electrochemical properties, Ag-decorated proficient $$({E}_{ads}^{H})$$ Gibb's free (ΔGH) value. Ni-doped were found both good excellent electro-catalytic property activities.

Language: Английский

Citations

56

The Assessment of Anticancer and VEGFR-2 Inhibitory Activities of a New 1H-Indole Derivative: In Silico and In Vitro Approaches DOI Open Access
Eslam B. Elkaeed, Reda G. Yousef, Hazem Elkady

et al.

Processes, Journal Year: 2022, Volume and Issue: 10(7), P. 1391 - 1391

Published: July 17, 2022

Corresponding to the reported features of anti-VEGFR-2-approved compounds, a new 1H-indole derivative (compound 7) was designed. The inhibitory potential designed compound revealed via molecular docking study that showed appropriate binding. Then, MD simulation (six studies) over period 100 ns performed confirm precise binding and optimum energy. Additionally, MM-GBSA reaffirmed perfect binding, exhibiting total energy −40.38 Kcal/Mol. experiments named essential amino acids in protein–ligand interaction, employing decomposition revealing diversity interactions 7 inside VEGFR-2 enzyme. As is new, DFT were utilized for structure optimization. results validated coherent interaction with A good value drug-likeness acknowledged silico ADMET studies. Interestingly, experimental vitro prohibitory better than sorafenib, demonstrating an IC50 25 nM. Notably, strong effects 10 against two cancer cell lines (MCF-7 HCT 116) established values 12.93 11.52 μM, disclosing high selectivity indexes 6.7 7.5, respectively.

Language: Английский

Citations

45

RETRACTED: Metal-Doped Al12N12X (X = Na, Mg, K) Nanoclusters as Nanosensors for Carboplatin: Insight from First-Principles Computation DOI
Hitler Louis, Gideon E. Mathias, Onyinye J. Ikenyirimba

et al.

The Journal of Physical Chemistry B, Journal Year: 2022, Volume and Issue: 126(27), P. 5066 - 5080

Published: July 5, 2022

This theoretical study focuses on the adsorption, reactivity, topological analysis, and sensing behavior of metal-doped (K, Na, Mg) aluminum nitride (Al12N12) nanoclusters using first-principle density functional theory (DFT). All quantum chemical natural bond orbital (NBO), free energies (ΔG, ΔH), sensor parameters were investigated ωB97XD with 6-311++G(d,p) basis set. The trapping carboplatin (cbp) onto surfaces doped Al12N12 was studied four functionals PBE0-D3, M062X-D3, ωB97XD, B3LYP-D3 at Overall, substantial change in energy gap after adsorption process affects work function, field emission, electrical conductivity clusters, hence making a better material for detecting carboplatin. Higher solvation obtained polar solvents compared to nonpolar solvents. Moreover, negative obtained, which therefore shows that engineered are highly efficient relatively strong show mechanism is by chemisorption, K- Na-doped metal clusters acted as sensors Also, analysis comparison previous studies exhibited very high stability regard their relevant binding hydrogen interactions.

Language: Английский

Citations

39

Structural analysis, reactivity descriptors (HOMO-LUMO, ELF, NBO), effect of polar (DMSO, EtOH, H2O) solvation, and libido-enhancing potential of resveratrol by molecular docking DOI Creative Commons
Eze A. Adindu, Obinna C. Godfrey,

Eyuwa I. Agwupuye

et al.

Chemical Physics Impact, Journal Year: 2023, Volume and Issue: 7, P. 100296 - 100296

Published: Aug. 30, 2023

The profound impact of health challenges related to libido, encompassing sexual dysfunction, hormonal imbalances, relationship difficulties, stress, anxiety, depression, and the effects certain medical conditions or medications, calls for urgent mitigative measures. As a result, this study meticulously explores compound Resveratrol (Res) uncover its substantial properties concerning libido enhancement. was optimized using DFT/ωB97XD/6-311G++(d, p) basis set in different solvents, namely DMSO (dimethyl sulfoxide), ethanol, water. Notably, geometry investigation reveals that structural bond variations can be attributed factors such as solvent polarity, screening effects, hydrogen bonding, solvation energy, conformational preferences. Substantially, Frontier Molecular Orbital (FMO) analysis explored HOMO values resulting 7.59198eV, 7.5514eV, 7.59687eV RES_DMSO, RES_EtOH, RES_H2O, respectively. Correspondingly, their LUMO were found 7.5955eV, 7.5648eV, 7.5982eV, leading respective band gaps 0.0035eV, 0.0133eV, 0.0014eV. Remarkably, RES_H2O displayed smallest energy gap (0.0014eV) among interacting compounds, indicating increased conductivity sensitivity. Furthermore, natural orbital revealed had highest permutation three complexes (376.5 kcal/mol 371.79 378.77 RES_H2O), stronger interaction between donor acceptor orbitals. Finally, molecular docking studies unveiled notable difference binding affinity, with RES exhibiting greater affinity 1UDT at -8.1 compared 1UDU, which demonstrated -6.6 kcal/mol. Thus, has potential reverse erectile dysfunction improve by inhibiting activities phosphodiesterase (1UDT 1UDU), ultimately promoting vasodilatory signals from cGMP smooth muscles penis, enhanced erection. These groundbreaking findings offer promising prospects development new effective drugs combat various conditions.

Language: Английский

Citations

37

Observations into the reactivity, docking, DFT, and MD simulations of fludarabine and clofarabine in various solvents DOI
G. Venkatesh, Sheik Haseena, Jamelah S. Al‐Otaibi

et al.

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 383, P. 122076 - 122076

Published: May 15, 2023

Language: Английский

Citations

34

Solvent potential effects (topological aspects, electron excitation), spectral characterization and biological attributes of NLO active 1-(2,4-dinitrophenyl)-2-((E)-3-phenylallylidene) hydrazine: Multiple anti tuberculosis agent DOI

J.N. Cheerlin Mishma,

V. Bena Jothy, Ahmad Irfan

et al.

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 376, P. 121439 - 121439

Published: Feb. 11, 2023

Language: Английский

Citations

31

Therapeutic potential of stilbenes in neuropsychiatric and neurological disorders: A comprehensive review of preclinical and clinical evidence DOI
Katarzyna Socała, Elżbieta Żmudzka, Klaudia Lustyk

et al.

Phytotherapy Research, Journal Year: 2024, Volume and Issue: 38(3), P. 1400 - 1461

Published: Jan. 17, 2024

Abstract Neuropsychiatric disorders are anticipated to be a leading health concern in the near future, emphasizing an outstanding need for development of new effective therapeutics treat them. Stilbenes, with resveratrol attracting most attention, example multi‐target compounds promising therapeutic potential broad array neuropsychiatric and neurological conditions. This review is comprehensive summary current state research on stilbenes several such as depression, anxiety, schizophrenia, autism spectrum disorders, epilepsy, traumatic brain injury, neurodegenerative disorders. We describe discuss results both vitro vivo studies. The majority studies concentrate resveratrol, limited findings exploring other pterostilbene, piceatannol, polydatin, tetrahydroxystilbene glucoside, or synthetic derivatives. Overall, although extensive preclinical show benefits various central nervous system clinical evidence their efficacy largely missing.

Language: Английский

Citations

11

Antitubercolusic Potential of Amino-(formylphenyl) Diazenyl-Hydroxyl and Nitro-Substituted Naphthalene-Sulfonic Acid Derivatives: Experimental and Theoretical Investigations DOI
Ernest C. Agwamba, Innocent Benjamin, Hitler Louis

et al.

Chemistry Africa, Journal Year: 2022, Volume and Issue: 5(5), P. 1451 - 1467

Published: Aug. 8, 2022

Language: Английский

Citations

34

Spectroscopic study, Hirshfeld surface, DFT, in-silico molecular docking and ADMET studies of 2,6-bis(4-chlorophenyl)-3-isopropylpiperidin-4-one (BCIP): A potent antiviral agent DOI
Arulraj Ramalingam, Sivakumar Sambandam, Hitler Louis

et al.

Journal of Molecular Structure, Journal Year: 2023, Volume and Issue: 1291, P. 135912 - 135912

Published: May 31, 2023

Language: Английский

Citations

13

Quantum chemical and MD investigations on molecular structure, vibrational (FT-IR and FT-Raman), electronic, thermal, topological, molecular docking analysis of 1-carboxy-4-ethoxybenzene DOI Creative Commons

C.P. Devipriya,

S. Deepa,

J. Udayaseelan

et al.

Chemical Physics Impact, Journal Year: 2024, Volume and Issue: 8, P. 100495 - 100495

Published: Jan. 26, 2024

The current study focuses on the combined experimental and theoretical FT-IR FT-Raman spectra of 1-carboxy-4-ethoxybenzene (1C4EB), to obtain vibrational frequencies optimal geometrical parameters by HF DFT. For 1C4EB, kind intramolecular interactions their stabilization were performed Natural Bond Orbital analysis. Nonlinear optical p properties conclusive evidence for ICT also analyzed. electronic energies absorption in different mediums determined. Furthermore, Mulliken charges distribution, molecular electrostatic potential maps, condensed Fukui function thermodynamic calculated. topological IRI analyzed with Multiwfn program. In docking, target proteins 4ULE 2EEP used investigate sugar phosphatase Prolyl aminopeptidase inhibitor properties. least binding energy -6.7 kcal/mol is observed selected protein 4ULE. dynamics complex between – ligand, free calculated Poisson-Boltzmann surface area method.

Language: Английский

Citations

5