Article
Multidisciplinary Sciences
Z. Ahmed, S. Saleem, S. Nadeem, A. U. Khan
Summary: The article investigates unsteady squeezing flow between two infinite parallel plates with consideration of time-dependent magnetic field and fluid thermal radiations influencing fluid dynamic viscosity. By transforming governing partial differential equations into ordinary differential equations and using the Keller box method for numerical solutions, the study reveals that velocity profile decreases with rising variable viscosity parameter and fluid temperature distribution increases. The results also indicate a decrease in skin friction coefficient and Nusselt number with increasing variable viscosity parameter, while heat transfer rate declines with radiation parameter but escalates with squeezing parameter.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Noreen Sher Akbar, A. Al-Zubaidi, S. Saleem, Shami A. M. Alsallami
Summary: This article focuses on the viscous flow of cu-water/Methanol suspended nanofluids on a three-dimensional stretching sheet reformed by magnetohydrodynamic phenomenon. A new model for 3D analysis of cu-water/Methanol nanofluid with an irregular viscosity is presented. The results show good agreement with the existing model and can be applied in nanotechnology for manipulating and designing surfaces.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Khadija Rafique, Zafar Mahmood, Umar Khan, Sayed M. Eldin, Alia M. Alzubaidi
Summary: This study investigates the heat transfer phenomenon in nanofluids containing carbon nanotubes with different lengths and radii. The effects of viscosity and joule heating on motion are also examined. By using similarity transformation, the governing equations are transformed into a dimensionless form and numerically solved using the RK-4 method. The results show that the addition of carbon nanotubes increases the rate of heat transfer. The proposed numerical model is validated through comparison with previously published results.
Article
Mathematics, Applied
Bilal Ahmed, Zahid Nisar, Ahmed M. EI-Sherbeeny
Summary: This study investigates the peristalsis of a nanofluid with variable viscosity, guided towards a specific target using magnetic fields. The results show that the addition of silver nanoparticles enhances heat transport characteristics, while an inclined magnetic field reduces the axial velocity.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Thermodynamics
Felicita Almeida, B. J. Gireesha, P. Venkatesh, G. K. Ramesh
Summary: This study investigates the flow behavior and thermal performance of aluminum oxide-water nanofluid in a microchannel with low aspect ratio, focusing on the effects of activation energy parameter, thermal radiation, Bi number, and nanoparticle shape factor. The results show that increasing activation energy parameter decreases system exergetic effectiveness, while thermal radiation and Bi number enhance heat energy release. The Bejan number decreases with increasing nanoparticle shape factor, while temperature increases.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2021)
Article
Thermodynamics
Noreen Sher Akbar, E. N. Maraj, N. F. M. Noor, Muhammad Bilal Habib
Summary: This study analyzes the impact of temperature-dependent nanofluid viscosity on peristaltic transport and demonstrates the effects of carbon nanotubes on temperature, velocity, thermal conductivity, and pressure gradient using numerical and graphical methods. Key findings include lower pressure gradient and higher axial velocity in SWCNT nanofluids compared to MWCNT ones, and the improvement of transverse velocity in MWCNT nanofluids with higher viscosity. This study is of importance for medical applications in peristaltic pumping and pharmacological engineering.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Solomon O. Giwa, Mohsen Sharifpur, Mohammad H. Ahmadi, S. M. Sohel Murshed, Josua P. Meyer
Summary: This study experimentally determined the viscosity and electrical conductivity of MWCNT-Fe2O3 nanofluids based on DIW, and found that hybrid nanofluids have superior performance compared to conventional fluids. High volume concentrations significantly increased the electrical conductivity and viscosity of the hybrid nanofluids, while also exhibiting high stability. The lower viscosity of the hybrid nanofluid compared to mono-particle nanofluids of Fe2O3/water is advantageous for engineering applications as it reduces pumping power.
Article
Thermodynamics
Prashanta Kumar Mandal, Gauri Shanker Seth, Subharthi Sarkar, Ali Chamkha
Summary: The study focused on the oblique slip flow behavior of carbon nanotubes suspended in water under the influence of a magnetic field. It was found that single-wall carbon nanotubes have a more effective heat transfer rate compared to multi-wall carbon nanotubes. Additionally, the magnetic field was observed to increase skin friction by increasing the obliqueness of the flow.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Nessrin Manaa, Awatef Abidi, Ahamed C. Saleel, Jamel Madiouli, Mohammed Naceur Borjini
Summary: The study compares the performance of Cu-Al2O3/water micropolar hybrid nanofluid with Cu/water simple nanofluid in terms of heat transfer, showing that the micropolar nanofluid exhibits higher heat transfer rates in thermal buoyancy-dominated zones but leads to lower heat transfer rates in solutal-dominated regime.
HEAT TRANSFER ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Ebrahem A. Algehyne, Haifaa F. Alrihieli, Muhammad Bilal, Anwar Saeed, Wajaree Weera
Summary: In this study, the pseudoplastic model is used to analyze the mass and energy transmission through a stretched permeable surface using trihybrid nanofluid. The influence of porosity is examined by employing the Darcy-Forchheimer relation in the momentum equation. The thermal efficiency of the nanocrystals is evaluated by integrating them with a pseudoplastic substrate. The findings show that the hybrid and trihybrid nanofluids have a greater tendency for fluid energy and velocity propagation rate compared to simple nanofluids, with an enhancement in velocity and heat transition rate.
Article
Thermodynamics
K. Sharma, N. Vijay, F. Mabood, I. A. Badruddin
Summary: The study of fluid flow over a rotating disk is of great significance in various industries and scientific fields. This investigation focuses on the ferrohydrodynamic flow of magnetic nanofluid caused by a rotating disk, taking into account temperature-dependent thermal conductivity and geothermal viscosity. The rotation of the disk is found to significantly enhance the radial movement of flow, while other parameters such as variable viscosity, magnetic field parameter, and Reynolds number also have an impact on the flow. The findings of this study provide valuable insights into the heat transfer phenomenon and fill a gap in the existing literature.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Reza Javadpour, Saeed Zeinali Heris, Yaghoub Mohammadfam
Summary: This study investigates the use of nanofluid in a cross-flow cooling tower to improve performance, finding that lower flow rates are more effective and certain concentrations of nanofluid show higher cooling range and effectiveness compared to pure water. Economic optimization resulted in the optimal concentration and flow rate of 0.07 wt% and 2.249 kg/min, respectively.
Article
Computer Science, Information Systems
Shams Forruque Ahmed, Tohid Adibi, Seyed Esmail Razavi, Omid Adibi, Irfan Anjum Badruddin, Syed Javed
Summary: The numerical solution of compressible flows is more prevalent than that of incompressible flows. The artificial compressibility approach is widely used to solve incompressible Navier-Stokes equations numerically. This paper assesses the effect of the compressibility factor on the convergence speed and accuracy of results for various types of thermo-flow.
CMC-COMPUTERS MATERIALS & CONTINUA
(2023)
Article
Multidisciplinary Sciences
Payam Jalili, Ali Ahmadi Azar, Bahram Jalili, Davood Domiri Ganji
Summary: This study investigates the problem related to a transient rotating angled plate in the flow of three-dimensional thin film nanomaterials using two analytical techniques. The governing partial differential equations are transformed into a set of nonlinear ordinary differential equations using similarity variables. The derived equations are solved using the modified AGM and HAN methods, and the obtained results are compared with the numerical solutions. The validity of the analytical solutions is confirmed through the comparison.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Muhammad Amjad, Iftikhar Ahmed, Kamran Ahmed, Marei Saeed Alqarni, Tanvir Akbar, Taseer Muhammad
Summary: This research investigates Williamson nanofluid flow over an exponentially stretching permeable vertical plate with temperature-dependent thermal conductivity and viscosity. Numerical solutions and graphical representations show that increasing values of the magnetic parameter M, Williamson parameter lambda, and viscosity parameter alpha lead to a decrease in boundary layer thickness of the velocity profile and an increase in the temperature profile.
Article
Mathematics, Applied
Noreen Sher Akbar, Salman Akhtar, Ehnber N. Maraj, Ali E. Anqi, Raad Z. Homod
Summary: This investigation focuses on explaining the heat transfer and entropy generation of Magnetohydrodynamics (MHD) viscous fluid flowing through a ciliated tube. Heat transfer study is of great significance in various biomedical and biological industry problems. The metachronal wave propagation is identified as the main cause of the viscous creeping flow. A low Reynolds number is employed to account for the weaker inertial forces and to satisfy the creeping flow limitations. A large wavelength of the metachronal wave is considered for the cilia movement. Entropy generation is used to analyze the heat transfer through the flow. Numerical solutions are obtained using MATHEMATICA, and exact mathematical solutions are calculated and analyzed with graphs. Streamlines are also plotted, revealing an axially symmetric flow and temperature profile. Both velocity and temperature profiles reach their maximum values in the center of the ciliated tube and decrease towards the boundaries.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Bushra Ishtiaq, Ahmed. M. Zidan, Sohail Nadeem, Mohammed Kbiri Alaoui
Summary: This article presents a comparative study of magnetohydrodynamics stagnant point flow in hybrid nanofluid using the extended versions of the Yamada-Ota model and Xue model. The study considers a time-dependent and thermally radiative two-dimensional flow with a stretchable/shrinking permeable sheet. The hybrid nanofluid is formulated by suspending Aluminum Oxide Al2O3 and Copper Cu nanoparticles in water. The nonlinear dimensionless system of ordinary differential equations is solved numerically using the bvp4c methodology. The study finds that the heat transfer rate is higher in the Yamada-Ota model compared to the Xue model, and increasing the stretching parameter enhances the velocity field but deteriorates the temperature distribution.
AIN SHAMS ENGINEERING JOURNAL
(2023)
Article
Mathematics, Applied
Nadeem Abbas, Sohail Nadeem, Wasfi Shatanawi
Summary: This study presents a numerical analysis of MHD 3D second grade fluid over slendering stretching sheet, with considerations of heat generation and thermal radiation impacts. The problem is mathematically stated as PDEs and transformed to nonlinear ODEs using appropriate similarity variables. The solutions are computed using MATLAB bvp4c function and the impacts of involving parameters on velocity and temperature are analyzed. The results show the effects of various parameters on skin friction and Nusselt number.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Mathematics, Applied
Sohail Nadeem, Salman Akhtar, Nevzat Akkurt, Anber Saleem, Shahah Almutairi, Hassan Ali Ghazwani
Summary: This study mathematically investigates the heat and mass transfer during the peristaltic flow of a non-Newtonian Jeffrey fluid inside an elliptic cross-section duct. The analysis considers constant heat absorption and provides a descriptive assessment of the heat and mass transfer. Exact solutions are obtained using a polynomial solution technique for the dimensionless partial differential equations in the problem. A purposeful graphical assessment is provided for the final mathematical results. Velocity and temperature profiles reach their highest values in the core region of the duct and gradually decrease towards the duct boundaries.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Materials Science, Multidisciplinary
Noreen Sher Akbar, Fouad Othman Mallawi
Summary: In this study, the slip velocity of a non-Newtonian nanofluid flowing above a stretching surface with double-diffusion effects is examined. The initial partial differential equations are transformed into dimensionless form, and comparison variables are introduced to reduce them into ordinary differential equations. The reduced ordinary differential equations are then solved numerically using the shooting method. A comprehensive parametric study is conducted to investigate the effects of different parameters on the velocity, temperature, salt concentration distribution, local Nusselt number, and Sherwood number in both assisting and opposing flow cases.
FRONTIERS IN MATERIALS
(2023)
Article
Physics, Multidisciplinary
Mirza Naveed Jahangeer Baig, Nadeem Salamat, Faisal Z. Duraihem, Salman Akhtar, Sohail Nadeem, Jehad Alzabut, Salman Saleem
Summary: This study mathematically models the stagnation point flow over a heated stretching cylinder using the phase flow approach. The interaction between impinging stagnation flow and flow due to the stretching surface of the cylinder is thoroughly interpreted. Exact analytical solutions are computed and evaluated graphically. Heat transport analysis and Nusselt number interpretation are incorporated. The results show a dominant impinging stagnation flow for higher oncoming flow pressure and lower stretching velocity of the cylinder.
CHINESE JOURNAL OF PHYSICS
(2023)
Article
Physics, Applied
Sohail Nadeem, Bushra Ishtiaq, Nevzat Akkurt, Hassan Ali Ghazwani
Summary: This study focuses on the entropy analysis of a hybrid nanofluid in stagnant point flow. Nonlinear dimensionless ordinary differential equations are obtained through appropriate similarity transformations. The results show that the mixed convection parameter has a significant impact on the velocity field, entropy generation, and induced magnetic field, and both entropy and heat transfer rate increase with the increase of mixed convection parameter.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Materials Science, Multidisciplinary
Zheng Jun Song, Zafar Hayat Khan, Rashid Ahmad, Waqar Ahmad Khan, Yangjiang Wei
Summary: This study conducted a water-based nanofluid analysis on the flow of a ferromagnetic fluid in a channel with a dimpled cavity. The adiabatic horizontal flat walls were assumed, while the dimpled part and the inner rectangular finned-shaped obstacle were heated. The system of partial differential equations (PDEs) along with boundary conditions were solved using the Galerkin Weighted Residual Finite Element Method. Simulations were performed for various Reynold and Hartmann numbers to predict the streamlines, isotherms, local, and average Nusselt numbers. Higher Reynolds numbers led to a significant improvement in heat transfer at the dimpled surface. It is believed that this investigation could provide a basis for finding experimental results for the mixed convection of ferromagnetic nanofluid problem over a dimpled cavity.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Mathematics, Applied
Zafar Hayat Khan, Noreen Sher Akbar, Javaria Akram, Muhammad Hamid, Yangjiang Wei
Summary: This paper numerically investigates the electroosmotically augmented peristaltic pumping of electrically conducting aqueous ionic nanofluid through an inclined asymmetric channel. The behavior of the model for various parameters is expressed through graphs. The velocity profile significantly increases for Joule heating and electroosmotic velocity parameters. The velocity drops for the Hartmann number, and a dual behavior is observed for the thermal Grashof number. The streamline pattern for the fluid flow subject to different values of the electroosmotic velocity parameter reflects distinct circulation patterns.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Multidisciplinary Sciences
Noreen Sher Akbar, A. Al-Zubaidi, S. Saleem, Shami A. M. Alsallami
Summary: This article focuses on the viscous flow of cu-water/Methanol suspended nanofluids on a three-dimensional stretching sheet reformed by magnetohydrodynamic phenomenon. A new model for 3D analysis of cu-water/Methanol nanofluid with an irregular viscosity is presented. The results show good agreement with the existing model and can be applied in nanotechnology for manipulating and designing surfaces.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Multidisciplinary
Sohail Nadeem, Shahbaz Ali, Nevzat Akkurt, Mohamed Bechir Ben Hamida, Shahah Almutairi, Hassan Ali Ghazwani, Sayed M. Eldin, Zareen A. Khan, A. S. Al-Shafay
Summary: This paper presents a comprehensive study on the mathematical modelling and numerical simulation of non-Newtonian blood flow in an idealized stenosed artery. The results show that the non-Newtonian nature of the fluid model significantly influences flow dynamics, with a greater degree of stenosis leading to higher velocity and pressure drop. Wall shear is substantially larger in stenotic passages, and the severity of stenosis is directly related to this increasing behavior.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
S. Nadeem, R. Akber, H. A. Ghazwani, J. Alzabut
Summary: This study examines the behavior of steady and incompressible magnetohydrodynamics fluid flow with sinusoidal walls in a square cavity. The finite element method is used to numerically model the flow and heat transfer, resulting in temperature and velocity profiles. The study finds that the temperature and velocity exhibit good convergence for various parameter values. The significant impact of heat transfer rate on the results is also discussed.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Article
Mechanics
Muhammad Hamid, Zafar Hayat Khan, Waqar Ahmad Khan, Zhenfu Tian
Summary: This study numerically investigates the natural convection inside curvilinear geometries with electrically conductive fluids and multidirectional magnetic fields. The results show that the presence of a magnetic field and heated or cold obstacles significantly affect the flow and heat transfer characteristics. This research is of great importance for optimizing the design of trapezoidal cavities and various industrial applications.
Article
Materials Science, Multidisciplinary
S. Nadeem, Bushra Ishtiaq, Jehad Alzabut, Hassan A. Ghazwani, Ahmad M. Hassan
Summary: This study compares the time-dependent flow of a micropolar fluid between a linear stretching sheet and an exponential stretching sheet. It is found that the exponential stretching sheet provides more consequential results compared to the linear stretching sheet. Additionally, the material parameter shows an increase in the velocity field for both types of sheets.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Jehad Alzabut, Sohail Nadeem, Sumaira Noor, Sayed M. Eldin
Summary: This article investigates the modeling and numerical simulation of Magnetohydrodynamic (MHD) buoyancy driven convection flow in a differentially heated, square enclosure. Numerical solutions are computed for different values of Rayleigh number ranging 103 < Ra < 107 and Hartmann number ranging 0 < Ha < 40. Comportment of MHD free convection heat flow from transient to steady state is numerically examined for a period of 0 to 1 s. It is seen that with increasing values of Rayleigh number there is increase in local Nusselt number distribution on heated side of the cavity, while velocity distribution in the flow domain decreases with increasing Hartmann number.
RESULTS IN PHYSICS
(2023)
Article
Chemistry, Physical
Rajalaxmi Sahoo, C. Reshma, D. S. Shankar Rao, C. V. Yelamaggad, S. Krishna Prasad
Summary: This study investigates the influence of the flexible spacer parity of a guest photoactive liquid crystalline dimer on the photonic bandgap features of the cholesteric and twist grain boundary smectic C phases of the host molecule. The results show that the parity of the photoactive dimer affects the width of the photonic bandgap and the blue-shift of the cholesteric phase. Additionally, the parity of the dimer also affects the layer spacing and two-dimensional periodicity of the liquid crystalline phases.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Sara Rozas, Alberto Gutierrez, Mert Atilhan, Alfredo Bol, Santiago Aparicio
Summary: This study presents a multiscale theoretical investigation on the use of bifunctional hydrophobic Deep Eutectic Solvent for carbon capture using tetrapropylammonium chloride, acetic acid, and ethanolamine. The characterization includes nanoscale analysis of CO2 absorption mechanisms and changes in liquid phase properties during gas capture.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Tabouli Eric Da-yang, Alhadji Malloum, Jean Jules Fifen, Mama Nsangou, Jeanet Conradie
Summary: In this study, the potential energy of different glycine tautomers and their interaction with Cu2+ cations was investigated. The results showed that the solvation medium and the presence of Cu2+ cations influenced the stability of glycine tautomers.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Xiaoliang Gou, Nan Ye, Qingqing Han, Junjie Cui, Long Yi Jin
Summary: In this study, amphiphilic rod-coil molecules with rigid DSA parts and flexible oligoether chains were designed and their assembly capacities were investigated. The morphology of the molecular aggregates was influenced by the pH of the solution and UV light, and the aggregates showed adsorption capacity for nitroaromatic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Shuang Liu, Liyan Shan, Cong Qi, Wenhui Zhang, Guannan Li, Bei Wang, Wei Wei
Summary: Optimizing the design of styrene-butadiene-styrene copolymer (SBS) is crucial for producing cost-effective SBS modifiers and improving road quality. This study examined the influence of SBS content and molecular structure on viscosity and compatibility. The results showed that the viscosity contribution of SBS is determined by its molecular structure and phase morphology.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Artem A. Petrov, Ekaterina A. Titova, Aydar A. Akhmadiyarov, Ilnaz T. Rakipov, Boris N. Solomonov
Summary: This work focuses on the thermochemistry of solvation of azeotropes. The enthalpies of dissolution of azeotropes in different mediums were determined, and the impact of the structure of the azeotropes on their properties in solution was discussed. A correlation between enthalpies of solvation and molar refraction was used to determine the vaporization enthalpies of azeotropes for the first time. The results were found to be consistent with literature data, obtained using direct and calculated methods. These findings contribute to the analysis of the structure-property relationships of azeotropes.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
L. V. Kamaeva, E. N. Tsiok, N. M. Chtchelkatchev
Summary: Understanding the correlations between liquids and solids allows us to predict the thermodynamic parameter range favorable for the formation of intriguing solid phases by studying liquids. In this study, we experimentally and theoretically investigated an Al-Cu-Co system within different composition ranges, and identified high-temperature solid phases. Our findings demonstrated the correlation between the boundaries of different solid phases and undercooling and viscosity in the concentration area.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
R. Aneesh Kumar, S. Jamelah Al-Otaibi, Y. Sheena Mary, Y. Shyma Mary, Nivedita Acharjee, Renjith Thomas, Renjith Raveendran Pillai, T. L. Leena
Summary: In this study, the interactions between doped and pristine coronenes and adenine nucleobases were investigated using Density Functional Theory. The optimal configurations, adsorption energies, charge transfer, and electrical properties of each complex were calculated. It was found that doped coronene had stronger adsorption strength and charge transfer compared to pristine coronene. The stability of the complexes was attributed to non-covalent interactions in the interactive region. The change in electrical conductivity of coronenes after adsorption suggested their sensitivity towards DNA bases. The predicted energy gap and prolonged recovery time for adenine-coronene configurations indicated the potential application of pristine/doped coronene in DNA detection.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Gang Zhou, Yongwei Liu, Biao Sun, Zengxin Liu, Cuicui Xu, Rulin Liu, Qi Zhang, Yongmei Wang
Summary: The CFD-DEM method was used to simulate the dust deposition pattern in the bronchus of anchor digging drivers, revealing the highest dust concentration in the vortex region of the working face. The study also found a positive correlation between dust particle diameter and bronchial deposition rate, and a negative correlation with alveolar deposition rate.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Yan Zhang, Yafei Luo, Lingkai Tang, Mingyan E, Jianping Hu
Summary: This study investigates the effects of different transition metal decorations on B12N12 nanocages on the adsorption properties of nitrosourea drugs using computational methods. The results reveal the presence of weak non-covalent interactions between metals and nanocages, and the interaction between drugs and nanocages plays a significant role in drug adsorption. Compared to free drugs, the adsorption of drugs on nanocages can facilitate electron transfer, reduce energy gaps and chemical hardness, indicating activity at the target site.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
C. I. Alcolado, J. Poblete, L. Garcia-Rio, E. Jimenez, F. J. Poblete
Summary: In this study, the selective oxidation of aromatic aldehydes was investigated using Ru(VI) as a catalyst and hexacyanoferrate (III) as a cooxidant in an alkaline medium. The reaction mechanism involves complex reaction orders for the oxidant and the aromatic aldehyde, while the reaction order for Ru(VI) is one. The proposed mechanism includes two catalytic cycles and the formation and decomposition of complexes. Quantitative structure-activity relationship analysis showed that deactivating groups in the para-position enhance the process.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Inez A. Barbieri, Marcos L. S. Oliveira, Franciele S. Bruckmann, Theodoro R. Salles, Leonardo Zancanaro, Luis F. O. Silva, Guilherme L. Dotto, Eder C. Lima, Mu. Naushad, Cristiano R. Bohn Rhoden
Summary: This study evaluated the adsorption of zolpidem on magnetic graphene oxide and synthesized magnetic graphene oxide adsorbents for zolpidem removal. The best magnetic nanoadsorbent was found to have a removal percentage of 87.07% at specific pH and temperature conditions. The results suggest that the removal of zolpidem is related to the surface chemistry of the adsorbent rather than the surface area of graphene oxide. The adsorbent showed excellent adsorption efficiency and magnetic behavior, making it a promising material for removing zolpidem from aqueous solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Hongyan Huang, Chunquan Li, Siyuan Huang, Yuling Shang
Summary: This study examines the sensitivity of the thermal conductivity of water-based alumina nanofluids to changes in concentration, sphericity, and temperature. The results show that volume fraction and temperature have a significant impact on the thermal conductivity, while sphericity also needs to be considered. A support vector machine regression model was created to analyze the sensitivity of the thermal conductivity to different parameters. The findings indicate that temperature, sphericity, and volume fraction are the most sensitive variables.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Correction
Chemistry, Physical
V. M. Pergamenshchik, T. Bryk, A. Trokhymchuk
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Valentyn Rudenko, Anatolii Tolochko, Svitlana Bugaychuk, Dmytro Zhulai, Gertruda Klimusheva, Galina Yaremchuk, Tatyana Mirnaya, Yuriy Garbovskiy
Summary: This paper reports on the synthesis, structural characterization, spectral and nonlinear-optical properties of glass nanocomposites made of glass forming ionic liquid crystals and nanoparticles. The study reveals that by exciting the nanocomposites within their absorption band, a control over effective optical nonlinearities can be achieved, allowing the modification of the magnitude and sign of the effective nonlinear absorption coefficient. The proposed strategy using metal-alkanoates based glass-forming ionic liquid crystals and nanoparticles shows great potential for the development of nanophotonics and plasmonics technologies.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
