Article
Environmental Sciences
Vasudevan Saranya, Ramasamy Shankar, Mansour K. Gatasheh, Sadaf Zehra
Summary: The abnormal self-assembly of the amyloid-beta (A beta) peptide is a major cause of Alzheimer's disease. Gold nanoparticles (AuNPs) have been found to inhibit A beta aggregation, but the effects are still not completely understood. Molecular dynamics simulations show that Au144MC can increase the rigidity of the A beta 42 peptide backbone region, enhancing the structural stability of the peptide and its complex with Au144MC through various interactions.
ENVIRONMENTAL RESEARCH
(2022)
Article
Chemistry, Physical
Yangjun Qin, Jin Zhao, Zhao Liu, Chao Wang, Hang Zhang
Summary: The influence of surface roughness inside the nanochannel on nanofluid flowing properties was studied using molecular dynamics simulation. The study found that increasing roughness height increases the temperature and velocity of the nanofluid. Surface roughness also reduces the range of density fluctuations near the walls in the nanochannel. Triangular roughness has the greatest effect on the flow properties of the nanofluid.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Environmental
Yanlei Wang, Ju Liu, Xiaoqing Yuan, Mi Wang, Yi Nie, Suojiang Zhang, Hongyan He
Summary: This Perspective discusses the structures of ionic liquids (ILs) and the aggregations that can significantly alter their micro-environment and impact their properties and functions. The mesoscale structures of IL aggregation in pure ILs and ILs-solvent mixtures are analyzed based on interacting forces and thermodynamics. The potential applications of IL aggregation in various scientific and engineering fields are explored, such as biomass conversion, smart materials, and life medicine. The challenges and opportunities in the field of IL aggregation, including direct observation techniques, large-scale simulations, theoretical forming mechanisms, and coupling mechanisms with solid interfaces, are also discussed. These new perspectives shed light on the rational design of ILs and generate research interest in ILs as a green medium in chemical engineering.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Ilia Kopanichuk, Kolattukudy P. Santo, Aleksey M. Vishnyakov
Summary: In this study, aggregation behavior in a system of spherical primary particles in a liquid solvent was analyzed. It was found that systems with neighbor-dependent interactions formed stable fractal structures, showing different behavior compared to systems with reversible pairwise potentials.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Biochemistry & Molecular Biology
David L. Cheung
Summary: Solid surfaces have a significant impact on the aggregation and assembly of biomolecular systems, with protein fibrillation being an important example. The molecular and oligomer structures adopted by proteins on surfaces play a crucial role in the rate of fibrillation. Molecular dynamics simulation is used in this study to investigate the aggregation of a model amyloidogenic peptide on a gold surface. The simulations reveal that the peptide adopts different conformations on the surface compared to bulk solution, resulting in significant differences in the formed oligomer structures. The adsorption of oligomers on the surface can also lead to restructuring, offering an explanation for the inhibition of fibrillation observed experimentally.
Article
Physics, Fluids & Plasmas
Shahin Mohammad Nejad, Eldhose Iype, Silvia Nedea, Arjan Frijns, David Smeulders
Summary: In this study, the Gaussian mixture (GM) model, an unsupervised machine learning technique, was used to construct a statistical gas-solid surface scattering model based on collisional data obtained from molecular dynamics (MD) simulations. The results showed that the GM model outperformed the traditional scattering kernel model in predicting the distribution of postcollisional velocities and accommodation coefficients.
Article
Chemistry, Physical
Fang Chen, Zhiping Liu, Guangren Yu
Summary: This study investigated the behavior and distribution of water molecules in different types of ionic liquids (ILs) using molecular dynamics simulations. It was found that water molecules tend to aggregate in hydrophobic ILs, while the introduction of a hydrophilic anion significantly influences water aggregation. The results provide valuable information for understanding the mechanism of water aggregation in mixed ILs and offer a simple strategy to tune the properties of ILs and improve their performance in electrical double layer capacitors (EDLCs).
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Materials Science, Multidisciplinary
Majid Namayandeh Jorabchi, Mohsen Abbaspour, Elaheh K. Goharshadi, Iman Salahshoori, Sebastian Wohlrab
Summary: In this study, the aggregation and possible coalescence of a pair of core-shell Pt@Au nanoalloy particles were simulated in different solvents. The results showed that the tendency for aggregation is greater in water and benzene + water systems, weaker in IL, ethanol, and benzene, and there is a very small change in the structure of the nanoalloys in different solvents. The study also examined the effects of nanocluster shape and core by simulating truncated octahedral (Au)374 and pure icosahedral (Au)309 nanoclusters in water.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Physics, Applied
Suren Ali-Ogly, Jaroslav Kousal, Daniil Nikitin, Pavel Pleskunov, Janus Hanus, Andrei Choukourov, Hynek Biederman
Summary: In this study, computational fluid dynamics simulations were used to analyze the flow of carrier gas in a sputter-based gas aggregation cluster source and investigate the impact of inlet and outlet geometry on gas flow and nanoparticle transport. The results showed that nanoparticles experience Brownian diffusion and drag force from the carrier gas flow, and a minimum gas velocity of 10 m/s is required to prevent loss of nanoparticles on the walls and ensure efficient nanoparticle transport.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Engineering, Chemical
Xuefang Hu, Amir Hossein Derakhshanfard, Ndrajit Patra, Imran Khalid, Abduladheem Turki Jalil, Maria Jade Catalan Opulencia, Reza Balali Dehkordi, Davood Toghraie, Maboud Hekmatifar, Roozbeh Sabetvand
Summary: This study utilizes molecular dynamics simulation to analyze the behavior of water/Fe3O4 nanofluid in Cu and Pt wall type microchannels. The results indicate that the atomic stability of the system increases by changing the MC type.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Chemistry, Physical
Hui-Ji Li, Chun-Chang Wang, Mei Wang, Qing-Wen Zhang, Ying-Ying Li, Hai-Bo Yi, Yun Chen
Summary: The characteristics of CaSO4 clusters in supersaturated solutions were thoroughly investigated in this study, revealing three typical cluster types: dissolved ion associated species, stable aggregates, and CaSO4 precursors. The aggregation of these clusters is accompanied by dehydration and cooperative hydration processes, with distinct behaviors observed for different cluster sizes and structures.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Materials Science, Multidisciplinary
Raja Azhar Ashraaf Khan, A. M. Alsaad, Afsheen Zulfqar, Muhammad Mateen, Qais M. Al Bataineh, Bader S. Al-Anzi, Hisham S. M. Abd-Rabboh, Ghulam Abbas Ashraf, Ahmad Telfah, Meng-Bo Luo
Summary: The impact of the interaction strength between polymer and nanoparticles on the glass transition temperature and phase separation in polymer nanocomposites was explored using molecular dynamics simulations. The results showed that the glass transition temperature exhibited different behaviors at low and high-volume fractions of nanoparticles, depending on the interaction strength. Phase separation was observed at high volume fractions of nanoparticles with low interaction strength, while no phase separation was observed at high interaction strengths. It is recommended to consider the critical value of the interaction strength to avoid phase separation and instability in polymer nanocomposites with a high volume fraction of nanoparticles.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Jinlong Wang, Daping Liu, Zhichao Guo, Bingling He, Wenqiang Dang
Summary: The molecular dynamics simulation reveals that the He-V complex on the W(110) surface can migrate in the microsecond scale, leading to the formation of tungsten surface fuzz from two synergistic factors. With an increase in irradiation fluence, the height of protrusions on the surface continues to increase, eventually forming fuzz.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Chemistry, Physical
Adel Eftekhari, Javad Sayyad Amin, Sohrab Zendehboudi
Summary: In this study, molecular dynamics (MD) simulations were used to investigate the influence of pressure on asphaltene aggregation. The results showed that the number and size of asphaltene aggregates decreased significantly with increasing pressure, due to the delay in aggregate growth and enhanced solubility parameter. Additionally, the molecular interactions and movement of asphaltene were found to change with pressure. The MD results were consistent with laboratory data.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Yunhong Shi, Seyedmahmoodreza Allahyari, S. Mohammad Sajadi, Mashhour A. Alazwari, Payam Firouzi, Nidal H. Abu-Hamdeh, Ferial Ghaemi, Dumitru Baleanu, Arash Karimipour
Summary: Molecular Dynamic (MD) approach is utilized to study the aggregation process of Al nanoparticles in an aqueous environment, with a focus on the effects of temperature and pressure. The results suggest that the aggregation process is influenced by the temperature and pressure ratio, with an increase in atomic mobility leading to quicker collisions between the nanoparticles. Additionally, numerical analysis shows a decrease in aggregation time as temperature rises and an increase in aggregation time with higher pressure.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Physics, Multidisciplinary
M. A. Jafarizadeh, M. Yahyavi, N. Karimi, A. Heshmati
Article
Physics, Multidisciplinary
M. A. Jafarizadeh, A. Heshmati, N. Karimi, A. Mohamadzadeh
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
(2020)
Article
Multidisciplinary Sciences
N. Amiri, M. Ghapanvari, M. A. Jafarizadeh
SCIENTIFIC REPORTS
(2020)
Article
Mechanics
K. Aghayar, A. Heshmati, M. A. Jafarizadeh
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
(2020)
Article
Physics, Nuclear
N. Amiri, M. Ghapanvari, M. A. Jafarizadeh, S. Vosoughi
Article
Physics, Multidisciplinary
M. A. Jafarizadeh, F. Naghdi, M. R. Bazrafkan
Article
Physics, Multidisciplinary
N. Amiri, M. Ghapanvari, M. A. Jafarizadeh
Summary: The study obtained mass spectra for baryons by introducing an algebraic solution in the spatial part and using the Bethe Ansatz within an infinite-dimensional Lie algebra. The results were compared with experimental data, showing that the theory reproduces the experimental data quite well.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Energy & Fuels
Naiyer Razmara, Alexsandro Kirch, Julio Romano Meneghini, Caetano Rodrigues Miranda
Summary: Nanoporous graphene membranes are being investigated for gas separation, using molecular dynamics simulations to study the permeation and separation of CO2 and CH4 through a two-stage bilayer sub-nanometer porous graphene membrane design. It was found that the interlayer spacing of the bilayer nanoporous graphene membrane significantly impacts the permeation and separation of the gas mixture. The optimal configuration included an inline design with an interlayer spacing of 12 angstrom, showing high selectivity and permeation for effective separation of CH4/CO2 gas mixtures.
Article
Physics, Multidisciplinary
M. Yahyavi, M. A. Jafarizadeh, A. Heshmati, N. Karimi
Summary: The paper discusses a new algorithm for entanglement classification of two qubit states using competitive learning and quantum computation, but an error was found in the result of one particular step in the procedure.
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
(2021)
Article
Physics, Nuclear
M. A. Jafarizadeh, M. Ghapanvari, N. Amiri
Summary: This paper investigates the use of entanglement entropy as a signal for studying quantum phase transition in nuclei. By calculating the entanglement entropy values, the shape phase transition in nuclei can be tracked and studied. The results show that entanglement entropy is a powerful tool for identifying shape phase transitions in nuclei.
Article
Physics, Multidisciplinary
M. Ghapanvari, M. A. Jafarizadeh, N. Amiri
Summary: This paper investigates the characteristics of nuclear supersymmetry in transitional nuclei, focusing on the structure of two types of nuclear supersymmetry schemes, quantal analysis, and phase transition observables. Experimental evidence for vibrational to gamma-unstable transition in Ru-Rh and Zn-Cu supermultiplets is presented, suggesting the second-order nature of the phase transition from U(5) to O(6) may exist in these supermultiplets.
INDIAN JOURNAL OF PHYSICS
(2022)
Article
Physics, Particles & Fields
M. Ghapanvari, M. A. Jafarizadeh, N. Amiri, M. Seidi
Summary: This study proposes an exactly solvable solution for the spherical to gamma-unstable transition in transitional nuclei using the Bethe ansatz technique within an infinite-dimensional Lie algebra and dual algebraic structure. It also discusses the structure of U(6/4) nuclear supersymmetry scheme and investigates the change in level structure induced by the phase transition through quantal analysis. Experimental evidences for even-even and odd-mass nuclei near the critical point symmetry are presented, along with comparisons of low-states energy spectra with experimental data.
PHYSICS OF PARTICLES AND NUCLEI LETTERS
(2021)
Article
Mathematics
Gholamreza Rahimlou, Reza Ahmadi, Mohammad Ali Jafarizadeh, Susan Nami
SAHAND COMMUNICATIONS IN MATHEMATICAL ANALYSIS
(2020)
Article
Mathematics
Vahid Sadri, Reza Ahmadi, Mohammad Ali Jafarizadeh, Susan Nami
SAHAND COMMUNICATIONS IN MATHEMATICAL ANALYSIS
(2020)
Article
Mathematics
Gholamreza Rahimlou, Reza Ahmadi, Mohammad Ali Jafarizadeh, Susan Nami
SAHAND COMMUNICATIONS IN MATHEMATICAL ANALYSIS
(2019)