Article
Chemistry, Physical
Suman Chowdhury, Atanu Rakshit, Animesh Acharjee, Dileep Kumar, Bidyut Saha
Summary: This study aims to oxidize a long chain hydrophobic alcohol in water with the assistance of micellar substances. The kinetics of 1-octanol oxidation by Ce(IV) in different micellar media has been investigated, and effective catalytic effects of trivalent ruthenium and iridium metal salts have also been observed. The results provide insights into the characteristics of the oxidation reaction and the potential applications of these metal salts in micellar media.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Md. Rehan Alam, Md. Rafikul Islam, Javed Masood Khan, Ummey Rayhan, Shahed Rana, Dileep Kumar, Anis Ahmad, Md. Anamul Hoque, Shariff E. Kabir
Summary: The study focuses on the phase separation of a mixture of TX-100 and LFH in electrolyte solutions and its potential applications in the pharmaceutical industry. The cloud point temperature of the mixture in different sodium salts solutions was investigated. It was found that the presence of electrolytes decreases the cloud point temperature, with sulfate ion (SO42-) having the most significant effect. The phase separation process of TX-100 and LFH system was determined to be nonspontaneous.
COLLOID AND POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Mariana A. Noronha, Natalia A. D'Angelo, German Perez-Sanchez, Patricia Severino, Mary Ann Foglio, Tamar L. Greaves, Jorge F. B. Pereira, Andre M. Lopes
Summary: This study elucidates the physicochemical properties of LPS-based micelles and their interaction with four different (bio)molecules. The results reveal the critical micelle concentration of LPS in an aqueous environment and the influence of encapsulation parameters on the interaction between LPS and hydrophobic (bio)molecules. Additionally, the study demonstrates that increasing LPS micelle size enhances the encapsulation capacity of the hydrophobic (bio)molecules.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Physics, Multidisciplinary
Monica Corea, Rogelio Jimenez-Juarez, Gabriela Martinez-Mejia, Maria de Jesus Martinez-Ortiz, Jose Manuel del Rio
Summary: The study experimentally analyzed the influence of the stock solution concentration on the geometrical characteristics of the titration curve, and found that the magnitude and shape of the heat titration depend on the stock solution concentration until reaching a limiting value. Qualitative analysis suggested that the limiting value is substance-dependent.
Article
Engineering, Environmental
Paula Alejandra Lamprea Pineda, Kristof Demeestere, Max Sabbe, Joren Bruneel, Herman Van Langenhove, Christophe Walgraeve
Summary: This study evaluates the effect of different synthetic and biological surfactants on the gas-to-liquid equilibrium partitioning coefficient (KGL) of hydrophobic VOCs. The results show that the addition of surfactants decreases the KGL of all VOCs, with the highest decrease observed when sodium dodecyl sulfate (SDS) was added at 3 CMC. The findings provide fundamental data for improving the design and modeling of air treatment systems using surfactants.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Chemistry, Physical
Rahul Sahu, Divya Nayar
Summary: This study investigates the effects of chemical nature and soft attractive energy of crowders on water-mediated hydrophobic interactions between non-polar solutes using molecular dynamics simulations. The results show that different types of crowders have varying effects on hydrophobic interactions, with small-sized crowders primarily driving the interaction through an entropic depletion effect, and bulky crowders strengthening it through preferential interactions with the solute. The findings suggest that both entropic and energetic effects play crucial roles in determining hydrophobic associations.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Analytical
Weiwei Lu, Yun Liu, Zhi-ying Zhang, Junping Xiao, Chun-yan Liu
Summary: This study successfully estimated the critical micelle concentration (CMC) of surfactants using environmentally friendly amphiphilic carbon dots (Cdots) as ratiometric fluorescent probes. This provides a new strategy for designing green ratiometric fluorescent probes and expanding the application of Cdots in the colloidal field.
ANALYTICAL METHODS
(2022)
Article
Materials Science, Multidisciplinary
Hongxia Zhao, Yong Yang, Xin Shu, Lei Dong, Min Qiao, Qianping Ran
Summary: Based on molecular dynamics simulation, this study investigates the micelle properties and microstructures of sodium alkyl sulfate (SAS) in aqueous solution with different hydrophobic chain length. The shape of micelle transforms from spherical to ellipsoidal or cylindrical as the hydrophobic alkyl chain grows (C8 - C16). Longer hydrophobic tail chains collapse inside the micelle and result in smaller exposed surface area, which decreases the solvent accessible surface area (SASA) and hydrogen bond. Shorter alkyl chain is restricted while longer alkyl chain is active in motion within the micelle. Longer hydrophobic alkyl chain prompts SAS molecules to form micelle spontaneously in aqueous solution due to the increase of entropy.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Thu Thao Pham, Rintaro Takahashi, Tien Duc Pham, Shin-ichi Yusa
Summary: Stable PIC micelles with a small hydrodynamic radius of approximately 20 nm were prepared in water by mixing double hydrophilic oppositely charged diblock copolymers. The stability of these micelles is attributed to the combined driving forces of electrostatic and hydrophobic interactions.
Article
Chemistry, Physical
Angelina Folberth, Nico F. A. van der Vegt
Summary: The effects of trimethylamine-N-oxide (TMAO) on the solvation and interactions of methane in water were studied through Molecular Dynamics simulations. It was found that TMAO has a temperature-dependent effect on the solubility of methane. At low temperatures, TMAO reduces the solubility of methane in water, while at higher temperatures, TMAO promotes methane solubility. The analysis suggests that the reversible work of creating a repulsive methane cavity outweighs the van der Waals interactions between methane and TMAO at lower temperatures. Above a certain temperature, the van der Waals interactions between TMAO and methane become more significant. Additionally, increasing TMAO concentration enhances the attraction between dissolved methane solutes.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Farzaneh Hajirasouliha, Hua Yang, Qiang Wu, Dominika Zabiegaj
Summary: This study compared the critical micelle concentration (CMC) of two ionic surfactants using optical fiber and drop profile analysis tensiometry (PAT) techniques, showing preliminary consistency between the two methods. However, differences were observed in the behavior of the two surfactants in optical fiber measurement.
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS
(2021)
Article
Engineering, Chemical
Md. Anamul Hoque, Shamim Mahbub, Md. Tuhinur R. Joy, Malik Abdul Rub, Shahed Rana, Dileep Kumar, Yousef G. Alghamdi, Abdullah M. Asiri, Mohammed Abdullah Khan
Summary: The micellization behavior of CTAB and BSA mixture in different diols media was studied. The critical micelle concentration (cmc) values of the mixture decreased with increasing temperature and followed the order: cmc(1,5-PD)>cmc(1,2-PrD)>cmc(2,3-BD). The degree of micelle ionization (a) increased with carbon chain length and temperature. The thermodynamic parameters and the contribution of the solvent were also evaluated.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Engineering, Chemical
Md Anamul Hoque, Shamim Mahbub, Md Tuhinur R. Joy, Malik Abdul Rub, Shahed Rana, Dileep Kumar, Yousef G. Alghamdi, Abdullah M. Asiri, Mohammed Abdullah Khan
Summary: The micellization of CTAB and BSA mixture in different diols media was studied to understand the interaction between them. It was found that the critical micelle concentration increased with temperature and the degree of micelle ionization increased with the carbon chain length of diols.
CHEMICAL ENGINEERING COMMUNICATIONS
(2022)
Article
Engineering, Chemical
Thainnane Silva Paiva, Rui Gomes Nascimento, Lizzy Ayra Alcantara Verissimo, Renata Cristina Ferreira Bonomo, Cristiane Martins Veloso, Jaime Vilela de Resende, Rafael da Costa Ilheu Fontan
Summary: The study focused on the production of polymeric monolithic structures with highly interconnected pores for purifying biomolecules while maintaining bioactivity. The results indicated the potential application of the developed matrix in hydrophobic interaction capture processes.
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Dileep Kumar, Mihalj Posa
Summary: The anions of bile acids form linear hydrophobic congeneric groups (LCG) in the lnk - lnCMC plane and in the plane of enthalpy and entropy of bile salts micellization. The formation of LCG is not solely determined by hydrophobic effect and interaction, but also related to the energy and entropy changes of the hydrogen bonds. This finding provides insight into the thermodynamic behavior of bile acids.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Sharmin Sultana, Malik Abdul Rub, Marzia Rahman, Shahed Rana, Mohammad Majibur Rahman, Md Anamul Hoque, Yousef G. Alghamdi, Abdullah M. Asiri
Summary: In this study, the aggregation behaviors of PVA and TTAB in alcohols/diols media were investigated using conductivity measurements. The physico-chemical parameters and thermodynamic properties were determined. The results showed that the CMC values varied in different solvents, indicating the significant influence of solvents on the micelle formation of TTAB + PVA mixture. It was also found that PVA molecules interacted exclusively with TTAB through hydrogen bonding, ion-dipole, and hydrophobic interactions.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Malik Abdul Rub, Ajaya Bhattarai, Bidyut Saha, Zeeshan Haider Jaffari, Hoang Thi Thu, Dileep Kumar, Yousef G. Alghamdi, Abdullah M. Asiri
Summary: In this study, the effect of dicationic gemini surfactants on the reaction between ninhydrin and arginine was investigated using UV-Vis spectroscopic technique. The gemini surfactants were found to accelerate and catalyze the reaction even at concentrations lower than their critical micelle concentrations. The catalyzing capability of the gemini surfactants followed the order GS-4 > GS-5 > GS-6. The reaction followed a first-order kinetics with respect to arginine and a fractional-order kinetics with respect to ninhydrin. The study also examined the effects of temperature, arginine, ninhydrin, and pH on the condensation reaction.
Article
Chemistry, Physical
Malik Abdul Rub, Naved Azum, Dileep Kumar, Maha Moteb Alotaibi, Abdullah M. Asiri
Summary: This study investigates the impact of different media with fixed concentrations on the properties of PMT and BTC mixture. The results show that there is interaction between PMT and BTC, and the interaction is enhanced by increasing the mole fraction of BTC. The critical micelle concentrations of the mixture are influenced by the media, with TU having the greatest effect. In addition, FTIR spectroscopy reveals that the addition of other components affects the vibration frequencies of the pure components, indicating direct interaction among them.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Mohammed Ashraf Uddin, Bupasha Hekim Sutonu, Malik Abdul Rub, Shamim Mahbub, Maha Moteb Alotaibi, Abdullah M. Asiri, Shahed Rana, Md Anamul Hoque, Mahbub Kabir
Summary: This study investigates the complexation behavior of the antibiotic drug CPFH with various metal ions and finds that the binding constants are influenced by the type of metal ion and temperature. The binding of CPFH with alkali earth metals decreases with metal size and increases with temperature, while the opposite effect is observed for transition metals. The complexation process is spontaneous, with both hydrophobic and electrostatic interactions. Transition metal complexes are more stable.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Review
Chemistry, Medicinal
Saba Noor, Taj Mohammad, Malik Abdul Rub, Ali Raza, Naved Azum, Dharmendra Kumar Yadav, Md Imtaiyaz Hassan, Abdullah M. Asiri
Summary: Rosmarinic acid (RA), a bioactive phenolic compound commonly found in plants, has been shown to have multiple therapeutic benefits and potential clinical applications in various human diseases, including cancer, diabetes, and neurodegenerative disorders. Additionally, its high antioxidant capacity makes it a potential nutraceutical compound in the food industry.
ARCHIVES OF PHARMACAL RESEARCH
(2022)
Article
Engineering, Chemical
Md. Anamul Hoque, Shamim Mahbub, Md. Tuhinur R. Joy, Malik Abdul Rub, Shahed Rana, Dileep Kumar, Yousef G. Alghamdi, Abdullah M. Asiri, Mohammed Abdullah Khan
Summary: The micellization behavior of CTAB and BSA mixture in different diols media was studied. The critical micelle concentration (cmc) values of the mixture decreased with increasing temperature and followed the order: cmc(1,5-PD)>cmc(1,2-PrD)>cmc(2,3-BD). The degree of micelle ionization (a) increased with carbon chain length and temperature. The thermodynamic parameters and the contribution of the solvent were also evaluated.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Ajaya Bhattarai, Malik Abdul Rub, Dileep Kumar
Summary: The influence of surfactants on the rate constant of valine and ninhydrin was investigated, along with other experimental parameters. The absorbance of different solutions was recorded using UV-visible method, and the rate constant was estimated using a computer-based procedure. The results showed unconventional behavior of the rate constant at different concentrations of surfactants. The critical micelle concentration of the surfactants was determined using conductometric analysis. A model of micellar activity was used for quantitative treatment of the results, and a reasonable reaction mechanism was provided.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Malik Abdul Rub, Ajmal Koya Pulikkal, Naved Azum, Abdullah M. Asiri
Summary: The surface and micellization behavior of AMT and TX-45 surfactant were studied in the presence of NaCl and urea, with NaCl enhancing micellization and surface activity while urea lessened system activity. The study aims to use TX-45 as an efficient drug delivery vehicle for antidepressant drugs.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Sharifur Rahman, Malik Abdul Rub, Shamim Mahbub, Md Tuhinur R. Joy, Shahed Rana, Md Anamul Hoque
Summary: The charge-transfer complex formation of iodine with aniline and derivatives of aniline in CCl4 was investigated using UV-Visible spectroscopy and density functional theory (DFT) methods. The formation constant (K-CT) of the CT complexation was determined. The results showed that the K-CT values of CT complexes varied with temperature and the structure of the donor molecules. Thermodynamic parameters indicated the spontaneous nature of CT complexation and the involvement of hydrophobic and exothermic interactions.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Tajmul Hasan, Malik Abdul Rub, Md. Tuhinur R. Joy, Shahed Rana, Farah Khan, Md. Anamul Hoque, Mahbub Kabir
Summary: The cloud point of the mixture of aqueous triton X-100 and metformin hydrochloride was studied in the presence of various inorganic salts. The values of cloud point decreased as the concentration of electrolytes increased, indicating enhanced aggregation. Thermodynamic variables were determined, revealing that hydrophobic and electrostatic interactions are the primary forces between triton X-100 and metformin hydrochloride.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Naved Azum, Maha Moteb Alotaibi, Maroof Ali, Malik Abdul Rub, Hadi M. Marwani, Khalid A. Alamry, Abdullah M. Asiri
Summary: The current study investigated the influence of an ionic liquid and cationic surfactant on the physicochemical properties of an anaesthetic drug, tetracaine hydrochloride (TCH). Tensiometric and absorption spectroscopic methods were used to analyze the interaction between TCH and the ionic liquid (1-hexadecyl-3-methyl imidazolium chloride, SAIL) and cationic surfactant (cetylpyridinium chloride, CPC). The results showed that TCH exhibited a higher synergistic interaction with SAIL compared to CPC, which was confirmed by UV-visible spectroscopy and the binding constant value.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Review
Polymer Science
Guravtar Singh Mann, Naved Azum, Anish Khan, Malik Abdul Rub, Md Imtaiyaz Hassan, Kisa Fatima, Abdullah M. Asiri
Summary: Global climate change has already caused various environmental effects and led to a shift in focus towards sustainable materials. Green composites, which combine renewable fibers with polymers, offer a wide range of applications and superior features compared to conventional materials.
Article
Polymer Science
Aftab Aslam Parwaz Khan, Mallikarjunagouda B. Patil, Laxmibai P. Rathod, Shivalila G. Vader, Pankaj Raizada, Pardeep Singh, Maha M. Alotaibi, Mohammad Omaish Ansari, Anish Khan, Naved Azum, Malik Abdul Rub, Muhammad Nadeem Arshad, Abdullah M. Asiri
Summary: The study assessed the potential of nanocomposite membranes (NCMs) made of sodium alginate and embedded with synthesized zeolitic imidazole framework-8 (ZIF-8) as fillers for separating gaseous mixtures generated by methane reforming. ZIF-8 crystals were synthesized through hydrothermal synthesis, with sizes ranging from 50 to 70 nm. NCMs with 15% filler loading (synthesized ZIF-8) outperformed neat polymer membranes in terms of H-2 permeability and selectivity, achieving a purity of up to 95%. However, NCMs did not perform better than neat polymer membranes in separating gas mixtures. The combination of ZIF-8 and sodium alginate as fillers is a new and worth investigating.
Article
Engineering, Chemical
Md Anamul Hoque, Shamim Mahbub, Md Tuhinur R. Joy, Malik Abdul Rub, Shahed Rana, Dileep Kumar, Yousef G. Alghamdi, Abdullah M. Asiri, Mohammed Abdullah Khan
Summary: The micellization of CTAB and BSA mixture in different diols media was studied to understand the interaction between them. It was found that the critical micelle concentration increased with temperature and the degree of micelle ionization increased with the carbon chain length of diols.
CHEMICAL ENGINEERING COMMUNICATIONS
(2022)
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)