Article
Chemistry, Inorganic & Nuclear
Shangyu Li, Rui Liu, Xiao Han, Chunhua Ge, Xiangdong Zhang
Summary: In this study, four diethyl alpha-aminophosphonate derivatives were synthesized by reacting (3-aminophenyl)boronic acid pinacol ester with different aromatic aldehydes and diethyl phosphite. The compounds showed high thermal stability and good friction properties for rapeseed oil at low concentrations. Among them, BNP3 exhibited the best friction-reducing and anti-wear performances due to the strong electron withdrawing ability of the nitro group. This suggests potential industrial applications of these derivatives as lubricant additives.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Shixing Tang, Lin Li, Rui Wang, Sagar Regmi, Xinyu Zhang, Guoqiang Yang, Jian Ju
Summary: A novel colorimetric method for the determination of sialic acid (SA) was developed using 4-mercaptophenyl boronic acid (4-MPBA) as the analyte's recognition molecule, and negative charge PEG (400) was used to repulsive the interparticle crosslinking. The proposed sensing platform showed a linear relationship between the ratio of the absorbance intensity (A(525)/A(660)) and concentration of SA from 0.05 to 8 mM (R-2 = 0.997), with a detection limit of 48 mu M. This gold-based colorimetric sensor is easy to fabricate, reproducible in its test performance, and has been successfully applied for the detection of SA in biological and healthcare product samples.
Article
Biochemistry & Molecular Biology
Titilope John Jayeoye, Fredrick Nwude Eze, Sudarshan Singh, Oladipupo Odunayo Olatunde, Soottawat Benjakul, Thitima Rujiralai
Summary: The (PABA-SAL)@AuNPs nanocomposite was successfully synthesized, showing promising antibacterial activities and moderate antioxidant capacity without harmful effects on human red blood cells. The material also exhibited good biocompatibility on Caco-2 and RAW 264.7 cells, with cell viability not less than 70%, indicating its high potential for biomedical applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Chemistry, Multidisciplinary
Yukichi Horiguchi, Kevin Barthelmes, Yuji Miyahara, Akira Matsumoto
Summary: The detection and isolation of sialic acid (SA) over-expressed biomolecules remains a focus in cancer research. Boronic acid-based SA-recognition chemistry offers a synthetic molecular basis for such techniques. The derivative 5-Boronopicolinic acid, known for its high SA-binding strength, was immobilized on a gold surface and showed submicron-molar level sensitivity in its interaction with the glycoprotein fetuin implicated in cancers.
Article
Materials Science, Biomaterials
Dong Zhao, Pengli Xiao, Xiushan Dong, Yang Ge, Xing Guo, Jianlong Ji, Yongqiang Cheng, Shengbo Sang
Summary: Recently, a mechanical biosensor based on membrane-mediated magneto-stress-electric coupled sensitization (MSEC-MMB) was developed to improve the sensitivity and practicality of single molecule detection in clinical applications. The MSEC-MMB showed enhanced sensitivity by introducing Fe3O4 nanoparticles and a magnetic field to the traditional stress-electric biosensors, resulting in a LOD of 24 pg mL-1 for HSA. The MSEC-MMB also demonstrated high specificity, selectivity, and stability, making it a promising platform for early nephropathy diagnosis.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Chemistry, Analytical
Murugan Thiruppathi, Thiyagarajan Natarajan, Jyh-Myng Zen
Summary: Fluoride is commonly used in dental products to prevent cavities by inhibiting bacterial growth. However, excessive consumption of fluoride can cause tooth discoloration and pitting, and in severe cases, skeletal fluorosis with joint pain and stiffness. Therefore, it is essential to monitor fluoride levels in dental products and drinking water.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Peng Zhao, Jingyi Sun, Shijun Zhao, Yanan Song, Feng Gao, Hongbin Wang, Qingbin Ni, Ying Wang, Baoliang Sun
Summary: This method utilizes gold nanostars for immunoassay, enabling detection of the subarachnoid hemorrhage biomarker GFAP with very low detection limits and performance equivalent to that of conventional ELISA.
Article
Engineering, Environmental
Titilope John Jayeoye, Jie Ma, Thitima Rujiralai
Summary: A sensitive and selective colorimetric assay for silver ion detection was demonstrated using creatinine assembled on dithiobis(succinimidylpropionate) modified gold nanoparticles as an optical probe. The method showed high accuracy and precision in detecting Ag+ in water samples, with a detection limit far below the acceptable limit set by USEPA. The aggregation of nanoparticles led to a color change from red to blue-grey, providing a visual indication of Ag+ presence.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Biochemical Research Methods
Nari Seo, Jaekyoung Ko, Daum Lee, Heejin Jeong, Myung Jin Oh, Unyong Kim, Dong Ho Lee, Jaehan Kim, Yoon Jin Choi, Hyun Joo An
Summary: Sialic acid Neu5Gc, a non-human glycan, is recognized as a harmful substance that humans are unable to synthesize. A label-free method based on ZIC-HILIC/MRM-MS has been developed to accurately quantify Neu5Gc in human blood, showing successful absolute quantitation from healthy donors and correlation with biological factors. This method can be widely used in disease diagnosis and prediction of immunogenicity in biopharmaceuticals.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Zhenghan Shi, Yanli Lu, Zetao Chen, Chen Cheng, Jie Xu, Qingqing Zhang, Zupeng Yan, Zisheng Luo, Qingjun Liu
Summary: A non-enzymatic sensor based on reduced graphene oxide/gold nanoparticles/boronic acid nano-composites was developed for the rapid detection of natural glycoside toxins, with successful application in detecting glycoalkaloids in potatoes. The sensor showed high sensitivity and selectivity, indicating great potential for risk control of natural glycoside toxins in food.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Edyta Proniewicz, Maria Starowicz, Yukihiro Ozaki
Summary: This study investigates the influence of the oxidation state of copper, the nature of the interface, the incubation time, and the structure of N-substituted phenylboronic acids on the mode of adsorption on the surface of copper oxide nanostructures. By synthesizing these compounds in a controlled manner, the researchers were able to characterize the resulting nanostructures and study the adsorption using surface-enhanced Raman spectroscopy for the first time.
Article
Biochemistry & Molecular Biology
Kathleen Charlesworth, Nicholas van Heijst, Aidan Maxwell, Benjamin Baylis, Michael Grossutti, J. Jay Leitch, John R. Dutcher
Summary: In this study, a methodology to functionalize surface plasmon resonance (SPR) sensor surfaces with phytoglycogen (PG) nanoparticles was developed. The utility of the PG-functionalized SPR sensor was demonstrated by measuring the binding affinity of ConA protein to different types of PG nanoparticles. The results showed the potential application of PG as a novel bioactive delivery vehicle.
Article
Electrochemistry
Deepika Chauhan, Pramod K. Gupta, Pratima R. Solanki
Summary: The study synthesized Cys-Au@ZrO2 NPs and developed an efficient immunosensor for 25-OHVD3 detection, demonstrating excellent sensitivity and a linear detection range. The application in human serum samples showed highly correlated results with traditional ELISA.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Alexa Guglielmelli, Patrizia D'Aquila, Giovanna Palermo, Marcella Dell'Aglio, Giuseppe Passarino, Giuseppe Strangi, Dina Bellizzi
Summary: The emergence of antibiotic-resistant bacteria has raised concerns in public health, leading to a growing interest in alternative antimicrobial agents. Metal nanoparticles (NPs) have been extensively studied for their antibacterial activity against various bacteria. The presence of a protein corona on the NP surface can greatly affect their toxicity and understanding this effect is crucial for their effective use as antimicrobial agents.
Article
Chemistry, Analytical
Mohammad Hossein Ghanbari, Zahra Norouzi, Bastian J. M. Etzold
Summary: In this study, a multinary nanocomposite was designed for the detection of theophylline (TP) and uric acid (UA) in blood serum, showing high sensitivity and selectivity. The multinary nanocomposite improved the electrochemically active surface area and electron transfer rate, leading to enhanced current response. The detection limits were found to be 0.18 nM for UA and 0.36 nM for TP, with sensitivities of 1.27 μA μM-1 cm-2 and 1.06 μA μM-1 cm-2, respectively.
MICROCHEMICAL JOURNAL
(2023)
Article
Chemistry, Applied
Fredrick Nwude Eze, Titilope John Jayeoye, Sudarshan Singh
Summary: A versatile colorimetric indicator film based on chitosan and broken Riceberry phenolic extract was developed, showing enhanced physical and mechanical attributes. The CHI-RPE films exhibited increased hydrophobicity, mechanical resistance, thermal stability, barrier properties, and antioxidant activity compared to plain CHI film. Notably, the CHI-RPE film also produced intense naked-eye detectable colorimetric response to pH variation and volatile ammonia, making it a promising option for on-site visual detection of freshness in seafood products.
Correction
Biophysics
Titilope John Jayeoye, Oladipupo Odunayo Olatunde, Soottawat Benjakul, Thitima Rujiralai
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Article
Multidisciplinary Sciences
Titilope John Jayeoye, Chamaiporn Supachettapun, Nongnuj Muangsin
Summary: A sensitive colorimetric detection strategy for Ag+ detection was proposed using environmentally friendly synthesis of gold nanoparticles (AuNPs) with tannic acid (TA) as the reductant and pullulan (PUL) as the stabilizing agent. The synthesized TA/PUL-AuNPs showed maximum absorbance at 529 nm and exhibited a berry red color. Addition of Ag+ to the probe resulted in color changes due to the formation of Au@Ag core shell nanostructure. The probe showed a hypsochromic shift in absorption maximum, from 529 to 409 nm, and demonstrated linear response to Ag+ concentrations.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Environmental
Vijay R. Chidrawar, Sudarshan Singh, Titilope John Jayeoye, Rajesh Dodiya, Weerasak Samee, Chuda Chittasupho
Summary: In this study, a phenolic-rich Eucalyptus camaldulensis leaf extract was incorporated into a polymeric matrix to create a dressing with antioxidative, antimicrobial, anti-inflammatory, and hemostasis properties. The composite exhibited significant cross-linking and a porous structure. It showed higher antibacterial and antioxidant activity compared to the control. The dressing also demonstrated good biocompatibility, hemostatic properties, and promoted wound healing.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Titilope John Jayeoye, Chamaiporn Supachettapun, Nongnuj Muangsin
Summary: This study utilizes the optical property of carboxymethyl cellulose stabilized silver nanoparticles (CMC-AgNPs) as a colorimetric probe for the detection of toxic Au3+ ions in solution. The synthesized CMC-AgNPs exhibit sharp absorption at 403 nm, with an average particle size of less than 10 nm. By combining CMC-AgNPs with ascorbic acid (AA) and adding Au3+ ions, the color of the solution changes from light yellow to yellow, orange, ruby red, and purple red within 8 minutes at room temperature. The color and absorption spectra change is attributed to the formation of (CMC-Ag@Au) nanostructures.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Review
Nanoscience & Nanotechnology
Ashwini Kumar, Sunny R. Shah, Titilope J. Jayeoye, Akash Kumar, Akshay Parihar, Bhupendra Prajapati, Sudarshan Singh, Devesh U. Kapoor
Summary: Biogenic metallic nanoparticles (BMNPs) have gained attention due to their small size and high surface area-to-volume ratio. They have advantages over chemically synthesized nanoparticles, such as eco-friendly synthesis and biocompatibility. BMNPs have been explored in antibacterial activity, heavy metal sensing, food preservation, drug delivery, imaging, and cancer therapy. This review also discusses characterization techniques and the use of agricultural and biological materials in the synthesis of MNPs, reducing costs and minimizing the use of hazardous chemicals.
FRONTIERS IN NANOTECHNOLOGY
(2023)
Article
Environmental Sciences
Fredrick Nwude Eze, Titilope John Jayeoye, Roseline Chika Eze
Summary: This research aimed to construct a plasmonic Ag-nanocomposite for the optical detection of Fe2+ in aqueous solution. The nanocomposite was successfully synthesized using a green chemistry route with locust bean gum and Phyllanthus reticulatus anthocyanin. It exhibited small size, good dispersion, stability, and prominent SPR absorption peak. The nanocomposite showed high selectivity for Fe2+ and displayed a concentration dependent increase in color and SPR absorption band intensity. The detection limit for Fe2+ was much lower than the guideline limit in drinking water. The results demonstrate a facile and eco-friendly approach for synthesizing plasmonic Ag-nanocomposites and its potential as a probe for monitoring Fe2+ in aqueous environment.
ENVIRONMENTAL RESEARCH
(2023)
Article
Plant Sciences
Sudarshan Singh, Vijay R. Chidrawar, Dessy Hermawan, Ozioma F. Nwabor, Oladipupo Olatunde, Titilope J. Jayeoye, Weerasak Samee, Julalak C. Ontong, Chuda Chittasupho
Summary: This study investigated the effect of dechlorophyllization on the phytochemistry, polyphenol contents, and biological activities of Psidium guajava leaf ethanolic extracts. The dechlorophyllized extracts (PGC and PGS) showed strong antibacterial activity, protective effect against oxidative stress, anti-inflammatory activity, and inhibitory effect on cancer cells.
SOUTH AFRICAN JOURNAL OF BOTANY
(2023)
Article
Chemistry, Multidisciplinary
Jun Hu, Qinghua Qi, Yibao Zhu, Chaoling Wen, Opeyemi Joshua Olatunji, Titilope John Jayeoye, Fredrick Nwude Eze
Summary: There has been increasing interest in the biological and pharmacological potential of C. odorata. This study found that COLE, a lipophilic extract from C. odorata, exhibited potent and selective anticancer properties against human breast and colon cancer cells, as well as antimicrobial and antioxidant activities. The extract was non-toxic to normal cells and showed inhibitory effects against bacteria. These findings highlight the potential of COLE for pharmacological or nutraceutical applications.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Review
Polymer Science
Akash Kumar, Sangeeta Yadav, Jhilam Pramanik, Bhagavathi Sundaram Sivamaruthi, Titilope John Jayeoye, Bhupendra G. G. Prajapati, Chaiyavat Chaiyasut
Summary: Chitin, the second-most common polymer after cellulose, can be used to produce chitosan. Chitosan has been blended with various plant extracts and polymers to enhance its biological and physiological properties. Due to its enhanced physicochemical properties, chitosan-based composites have potential applications in food processing, nutraceuticals, food quality monitoring, food packaging, and storage. Chitosan-based biomaterials are biocompatible, biodegradable, low toxic, mucoadhesive, and regulate chemical release, making them suitable for biomedical applications.
Article
Chemistry, Multidisciplinary
T. J. Jayeoye, F. N. Eze, N. Muangsin
Summary: We have successfully synthesized an optical nanoprode (Ag0-pullulan-Ag+) for sensitive and selective detection of ferrous ions (Fe2+) in solution over ferric ions (Fe3+). The nanoprode, made of pullulan biopolymer and silver nanoparticles (AgNPs), showed a sharp absorption peak at 415 nm and a size distribution of 20-30 nm. By reducing available Ag+ to more AgNPs, it exhibited a colorimetric response from light yellow to brownish yellow upon the addition of Fe2+. The detection of Fe2+ was linear within the range of 1.0-20.0 and 20.0-125.0 mM, with a limit of detection (LOD) of 0.15 mM. Our work demonstrates the potential of carefully synthesized nanomaterials for sensitive and accurate analyte sensing.
MATERIALS TODAY CHEMISTRY
(2023)
Review
Polymer Science
Popat Mohite, Pudji Rahayu, Shubham Munde, Nitin Ade, Vijay R. Chidrawar, Sudarshan Singh, Titilope J. Jayeoye, Bhupendra G. Prajapati, Sankha Bhattacharya, Ravish J. Patel
Summary: The objective of this review is to provide a comprehensive overview of the current evidence on using chitosan-based hydrogels for managing skin infections. Chitosan, derived from chitin, possesses antimicrobial properties and shows promise for treating dermal infections. The review aims to evaluate the effectiveness, safety, and potential applications of these hydrogels by analyzing relevant studies. The findings can inform healthcare professionals and researchers in making informed decisions and developing treatment strategies.
Article
Chemistry, Multidisciplinary
Tawatchai Kangkamano, Warakorn Witsapan, Apon Numnuam, Jas Raj Subba, Titilope John Jayeoye
Summary: In this study, a facile and inexpensive colorimetric sensor for hydrogen peroxide (H2O2) and glucose is presented. The sensor is based on the formation of an Fe3+ complex assisted by the Fenton reaction in a micellar medium. The sensor achieved a limit of detection (LOD) of 5 mu M for H2O2 and provided a linear range of 10 mu M-4.0 mM. When coupled with glucose oxidase, the sensor could measure glucose down to 10 mu M within a linear range of 10 mu M-4.0 mM. The results obtained from the proposed method for glucose measurements in human plasma samples were in good agreement with the hexokinase-spectrophotometric method used by hospitals.
NEW JOURNAL OF CHEMISTRY
(2023)
Correction
Chemistry, Multidisciplinary
Titilope John Jayeoye, Tawatchai Kangkamano, Thitima Rujiralai
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Titilope John Jayeoye, Tawatchai Kangkamano, Thitima Rujiralai
Summary: Mercury contamination is a major concern in environmental matrices, with particular interest in detecting inorganic Hg2+ in water. A colorimetric assay using gold nanoparticles functionalized with DTSP and CRN was developed, which showed high sensitivity and accuracy in detecting Hg2+ in water samples within a short period of time.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(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)
