Article
Chemistry, Physical
Ajaya Bhattarai, Bidyut Saha, Zeeshan Haider Jaffari, Malik Abdul Rub, Yousef G. Alghamdi, Dileep Kumar
Summary: This study shows that twin-headed gemini surfactants have a significant impact on the interaction between glutamic acid and ninhydrin in an aqueous system. Among gemini surfactants, 16-4-16 exhibited the strongest catalytic activity, followed by 16-5-16 and 16-6-16. A pseudo-phase model for micellar activity was used to evaluate the impact of different gemini surfactants on the rate constant.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Mihalj Posa, Ajaya Bhattarai, Javed Masood Khan, Bidyut Saha, Dileep Kumar
Summary: The rates of the title reaction were measured in a double-headed micellar medium using UV-vis single beam spectroscopy. Gemini surfactants showed higher rate constants compared to CTAB, following first- and fractional-order paths in the reactions of Leu and ninhydrin, respectively. The impact of double-headed geminis on the reaction was explained and a pseudo-phase model of micellar activity was employed to interpret the observation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Environmental Sciences
Amnah Yusaf, Muhammad Usman, Muhammad Ibrahim, Asim Mansha, Atta ul Haq, Hafiza Fatima Rehman, Majid Ali
Summary: Micellar enhanced ultrafiltration (MEUF) was used in this study to remove Procion Blue MxR (PBM) from synthetic effluent. MEUF reduced the toxicity level of the aqueous system using micellar media of cationic surfactants such as CTAB and CPC. The addition of nonionic surfactant, TX-100, was investigated for its impact on the solubilizing power of cationic surfactants. Factors such as surfactant concentration, electrolyte concentration, transmembrane pressure, RPM, and pH were investigated to optimize the conditions for maximum PBM removal, and the efficiency of MEUF was assessed through rejection percentage and permeate flux values. Among the surfactants studied, CPC achieved the highest rejection percentage of 96.90% for PBM encapsulation.
Article
Chemistry, Applied
Wenfei Xiong, Ya Li, Cong Ren, Jing Li, Bin Li, Fang Geng
Summary: Investigating the thermodynamic parameters in the formation process of protein-polysaccharide complex coacervates is crucial for understanding the binding mechanism. pH, salt ion strength, and temperature were found to influence the thermodynamic parameters of gelatin (G)-pectin (P) complex coacervation. The binding between G and P involves electrostatic bonding, hydrogen bonding, and hydrophobic interactions.
FOOD HYDROCOLLOIDS
(2021)
Article
Multidisciplinary Sciences
Yousef G. Alghamdi, Malik Abdul Rub, Dileep Kumar
Summary: The influence of double-headed gemini was investigated on the reaction between the amino acid methionine and ninhydrin in CH3COOH-CH3COONa buffer solvent. The surfactant-like effect was observed and explained by a pseudo-phase model of micelles. The impact of temperature, pH, and concentration of ninhydrin and methionine on the reaction was also studied. The CMC of gemini surfactants and the surfactant system with methionine and ninhydrin was evaluated and other parameters such as rates and binding constants were calculated.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Chemistry, Physical
Haiting Kong, Yiqi Li, Duo Wang, Hong Liu, Hongchun Pan
Summary: The study investigated the thermodynamics of the APPT/HS15 micelle system under various concentrations of sodium salt electrolytes and temperatures, revealing that electrolytes lower the energy requirement for micelle formation and increase stability. Synergy between temperature and electrolytes was found to facilitate spontaneous micellization.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Ajaya Bhattarai, Malik Abdul Rub, Mihalj Posa, Bidyut Saha, Dileep Kumar
Summary: This report focuses on the catalytic impacts of cationic twin-headed and tailed gemini surfactants on the study of glycine and ninhydrin. The experimental results show that the gemini surfactants have a significant influence on the reaction rate, even at low concentrations. The catalytic effect is attributed to hydrophobic and electrostatic interactions between the gemini surfactant molecules and reactive species. The study also examines the effects of other variables on the reaction and records the electrical conductivity of the gemini system using a conductivity instrument.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Energy & Fuels
Ahmad Nawaz, Pradeep Kumar
Summary: The current study explored the impact of different hydrothermal carbonization temperatures (180, 230, and 280 degrees C) on the fuel properties, kinetics, thermodynamics, and reaction mechanism of sunflower stalks. The hydrochars obtained at different temperatures were pyrolyzed in a thermogravimetric analyzer (TGA) at varying heating rates. Characterization methods such as FTIR, FE-SEM, and XRD were used to examine the changes in functional groups, surface morphology, and crystallinity. The findings can be applied to the development and design of pyrolysis reactors for clean biofuel generation from sunflower stalks.
Article
Polymer Science
Dawei Zhang, Zhongxi Chen, Lu Ren, Xiangchun Meng, Wenge Gu
Summary: Through analyzing the properties of ASP produced water in Daqing Oilfield, it was found that the critical micelle concentration of ASP produced water is greatly affected by pH and slightly affected by temperature. The addition of polymer increases the viscosity of produced water and enhances its stability. The presence of inorganic salts promotes the formation of surfactant micelles in ASP produced water, further enhancing its stability.
Article
Biochemistry & Molecular Biology
Shilpa Mohanakumar, Namkyu Lee, Simone Wiegand
Summary: In this study, we compared data obtained from the non-equilibrium process of thermal diffusion forced Rayleigh scattering (TDFRS) with data obtained from the equilibrium process of isothermal titration calorimetry (ITC). The results showed that the thermophoretic behavior quantified by the Soret coefficient S_T agreed with the Gibb's free energy Delta G determined in the ITC experiment. We also investigated the influence of fluorescent labeling on the binding behavior and found that the dye had a significant impact.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Materials Science, Ceramics
Adriana Serban, Florina Teodorescu, Ancuta M. Sofronia, Irina Atkinson, Cornelia A. Marinescu, Alina Botea-Petcu, Florentina Maxim, Speranta Tanasescu
Summary: Hydroxyapatite (HAP), a major inorganic component of human body's hard tissues, plays a critical role in its interaction with proteins. In this study, the interaction between different types of HAP materials and bovine serum albumin (BSA) was investigated. The results showed that the physicochemical properties of HAP materials significantly influenced the thermodynamic profile of the protein-HAP interactions.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Giselle Kalline Gomes Carvalho Barros, Lindemberg de Jesus Nogueira Duarte, Ricardo Paulo Fonseca Melo, Francisco Wendell Bezerra Lopes, Eduardo Lins de Barros Neto
Summary: The study demonstrates that the hydrophobicity of surfactants affects their solubilization capacity and micelle shape, thus impacting the efficiency of dye removal. Thermodynamic parameters indicate that ionic micellar flocculation is exothermic and non-spontaneous.
SEPARATION SCIENCE AND TECHNOLOGY
(2022)
Article
Energy & Fuels
Zhongjie Zhang, Ruilin Liu, Surong Dong, Guangmeng Zhou, Zengyong Liu, Xu Xia, Qikai Peng, Conglin Wang
Summary: The decrease of inlet charge and mismatch of air and fuel are the main reasons for the decrease of engine performance at variable altitudes. This study focuses on the coupling mechanism between twin variable geometry turbocharging and fuel injection system and provides a theoretical basis for optimizing engine performance at different altitudes.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2022)
Article
Chemistry, Physical
Ruby Bansal, Sudip K. Pattanayek, Rohit Bansal, Anurag S. Rathore
Summary: Protein conformation and the impact of metal ions on protein aggregation are crucial, and studying the interaction and aggregation of albumin with Cu(II) ions can provide valuable insights for future drug research.
COLLOID AND POLYMER SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Galina Kuz'micheva, Vladimir Chernyshev, Galina Kravchenko, Larisa Pirutko, Evgeny Khramov, Lev Bruk, Zhanna Pastukhova, Aleksander Kustov, Leonid Kustov, Ekaterina Markova
Summary: Titanosilicalite of the MFI type was synthesized via a hydrothermal method and its properties were characterized using various techniques. The study revealed the correlation between the catalytic properties and factors such as the silicate module, distribution of Ti4+ ions, coordination numbers of titanium, and acid site density in the titanisilicalite.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Md. Nazrul Islam, Malik Abdul Rub, Md. Rafikul Islam, Md. Abdul Goni, Shahed Rana, Dileep Kumar, Abdullah M. Asiri, Yousef G. Alghamdi, Md. Anamul Hoque, Shariff E. Kabir
Summary: This study investigated the potential interactions between the antibiotic ceftriaxone sodium (CTS) and the surfactant triton X-100 (TX-100) in the presence and absence of various sodium based electrolytes and hydrotropic salts. The results showed that the hydrophilic interaction was significant when sodium salicylate (NaSal) was used, but not significant when sodium benzoate (NaBenz) was used. Thermodynamic variables were calculated to evaluate the nature of the interactions, and the findings may have important implications for pharmaceutical formulations and understanding drug-surfactant interactions.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Zita Farkas Agatic, Kosta Popovic, Dileep Kumar, Dusan Skoric, Mihalj Posa
Summary: This study investigates the formation of binary mixed micelles of sodium cholate (SC) - hexadecyltrimethylammonium bromide (HDTAB) and sodium cholate (SC) - dodecyltrimethylammonium bromide (DTAB) in an aqueous NaCl solution. The interactions and conformations of the surfactants are analyzed using 2D ROESY spectrum. The results show synergistic interactions and the dependence of molar excess Gibbs free energy on the mole fraction of the surfactant.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
Mezbah Hossain, Shamim Mahbub, Malik Abdul Rub, Shahed Rana, Md. Anamul Hoque, Dileep Kumar, Yousef G. Alghamdi, Mohammed Abdullah Khan
Summary: The interaction between crown ether (B18C6) and levofloxacin hemihydrate (LH) molecule has been studied using UV spectrometry, revealing the formation of a stable complex with strong interaction. This study aims to investigate the potential role of B18C6 in drug delivery due to its amphiphilic nature.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Physical
S. M. Rafiul Islam, Md. Rafikul Islam, Shamim Mahbub, Kamrul Hasan, Dileep Kumar, Javed Masood Khan, Anis Ahmad, Md. Anamul Hoque, D. M. Shafiqul Islam
Summary: The phase separation behavior of non-ionic surfactants-drug in aqueous hydrotropes has been studied. The cloud point is found to be dependent on the concentration of hydrotropes, and the positive standard Gibbs free energy values indicate the non-spontaneity of phase separation. The thermodynamic properties of transfer and enthalpy entropy compensation entities are calculated and explained.
Article
Crystallography
Sema Ozturk Yildirim, Mehmet Akkurt, Gokalp Cetin, Rahime Simsek, Ray J. Butcher, Ajaya Bhattarai
Summary: In the title compound, the conformation of the 1,4-dihydropyridine ring is distorted boat, and the cyclohexene ring almost adopts a half-chair conformation. In the crystal, intermolecular N-H···O hydrogen bonds form chains with C(6) graph-set motif along the a-axis. These chains are connected by C-H···O and C-H···F interactions to form a three-dimensional network. Additionally, C-H···π interactions link the molecules into layers parallel to the (100) plane. A Hirshfeld surface analysis was conducted to investigate the intermolecular interactions further.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Farid N. Naghiyev, Victor N. Khrustalev, Mehmet Akkurt, Ali N. Khalilov, Ajaya Bhattarai, Fuad Sh. Kerimli, Ibrahim G. Mamedov
Summary: The title compound contains two independent molecules in its asymmetric unit. One of the molecules exhibits rotational disorder in the thiophene ring, with two orientations that are not equivalent. In the crystal, the molecules are connected by intermolecular hydrogen bonds and van der Waals interactions to form ribbons along the a-axis.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Farid N. Naghiyev, Victor N. Khrustalev, Khammed A. Asadov, Mehmet Akkurt, Ali N. Khalilov, Ajaya Bhattarai, Brahim G. Mamedov
Summary: In the crystal, the title compound forms dimers through N-H···N hydrogen bonds with an R-2(2)(12) motif, which are further connected into a three-dimensional network through additional N-H···N hydrogen bonds. The crystal cohesion is also contributed by N-H···π and π-π interactions.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Farid N. Naghiyev, Victor N. Khrustalev, Anton P. Novikov, Mehmet Akkurt, Ali N. Khalilov, Ajaya Bhattarai, Ibrahim G. Mamedov
Summary: In the title compound, the ring system adopts specific conformations, and the crystal structure is stabilized by various intermolecular interactions, including hydrogen bonding and pi interactions. Hirshfeld surface analysis reveals the contributions of different intermolecular interactions to the crystal packing.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Abel Maharramov, Namiq Q. Shikhaliyev, Ayten Qajar, Gulnar T. Atakishiyeva, Ayten Niyazova, Victor N. Khrustalev, Mehmet Akkurt, Sema Ozturk Yildirim, Ajaya Bhattarai
Summary: The crystal structures and Hirshfeld surface analyses of four similar azo compounds have been studied. The compounds (I) and (II) crystallize in the monoclinic space group C2/c, while (III) crystallizes in the monoclinic space group P2(1)/c, and (IV) crystallizes in the triclinic space group P (1) over bar. The crystal structures reveal different types of interactions between molecules, leading to the formation of various layer or network structures.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
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
Crystallography
Firudin I. Guseinov, Viacheslav O. Ovsyannikov, Pavel V. Sokolovskiy, Yurii L. Sebyakin, Aida I. Samigullina, Mehmet Akkurt, Sevim Turktekin Celikesi, Ajaya Bhattarai
Summary: This study reports the crystal structure of a new salt compound, presenting the detailed intermolecular interactions and layered structure.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Elvin G. Karimli, Victor N. Khrustalev, Mehmet Akkurt, Ali N. Khalilov, Ajaya Bhattarai, Adila N. Aleskerova, Ibrahim G. Mamedov
Summary: The title compound is composed of two trans-fused cyclohexane rings and a chromen-2-one moiety connected by an oxymethylene bridge. In the crystal, the molecules are held together by hydrogen bonds and π-π interactions, resulting in a stable structure.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Gunay Z. Mammadova, Elizaveta D. Yakovleva, Gleb M. Burkin, Victor N. Khrustalev, Mehmet Akkurt, Sevim Turktekin Celiksesir, Ajaya Bhattarai
Summary: The title compound is composed of a furan and a benzene ring, with intramolecular pi-pi interactions between them. In the crystal structure, molecules are connected through C-H···O and C-H···N hydrogen bonds, forming layers parallel to the (100) plane. These layers are interconnected by C-H···pi interactions and weak van der Waals interactions. Hirshfeld surface analysis reveals that H···H, N···H/H···N, C···H/H···C, and O···H/H···O interactions contribute significantly to the crystal packing.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Elnur Z. Huseynov, Mehmet Akkurt, Ivan Brito, Ajaya Bhattarai, Farid N. Naghiyev, Khammed A. Asadov, Abel M. Maharramov
Summary: In this hydrated salt crystal, the cation is connected to the anion and water molecule through various hydrogen bonds, forming a complex network structure. The most important contributions to the crystal packing come from H···H, S···H/H···S, N···H/H···N, Cl···H/H···Cl, and C···H/H···C interactions.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Crystallography
Firudin I. Guseinov, Aleksandr V. Knyazev, Elena V. Shuvalova, Konstantin I. Kobrakov, Aida I. Samigullina, Zeliha Atioglu, Mehmet Akkurt, Ajaya Bhattarai
Summary: This study reveals the molecular configuration and crystal structure of the title compound, as well as the contributions of intermolecular interactions to the crystal packing.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(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)
