Article
Chemistry, Physical
Qisheng Sun, Hongyun Wang, Jing Li, Fei Li, Weigang Zhu, Xiaotao Zhang, Qiushui Chen, Huanghao Yang, Wenping Hu
Summary: Traditional metal-containing scintillators have limitations such as heavy-metal toxicity, environmental stability, and afterglow. Metal-free organic scintillators, especially organic-halogen-containing molecules, show potential due to their rising momentum. However, the introduction of halogens leads to delayed fluorescence or phosphorescence. This study explores the preparation of nano organic co-crystals and their application in X-ray imaging, which offers a solution to these limitations and provides ideas for developing new scintillators.
Article
Polymer Science
Argyro Gili, Isabella del Gaudio, Rose King, Luca Mazzei, Katherine Curran
Summary: Plasticiser loss is a crucial mechanism in the degradation of polymeric materials, affecting material stability and environmental contamination. The rate of plasticiser loss and the time to reach equilibrium depend on environmental conditions, container size, and material thickness. Understanding these dependencies is valuable for the degradation of plastic museum artefacts and other polymeric materials in closed environments.
POLYMER DEGRADATION AND STABILITY
(2022)
Article
Automation & Control Systems
Zechen Zhang, Menghua Sui, Changhe Li, Zongming Zhou, Bo Liu, Yun Chen, Zafar Said, Sujan Debnath, Shubham Sharma
Summary: By simulating the residual stress of cemented carbide during grinding, it was found that using nanofluid minimum quantity lubrication can achieve the lowest friction coefficient, proving the model's reliability under dry grinding conditions.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Engineering, Chemical
Mario Grassi, Italo Colombo, Davide Manca, Alice Biasin, Lucia Grassi, Gabriele Grassi, Michela Abrami
Summary: Drug activation by grinding or co-grinding has evolved considerably since the 1980s, leading to improved drug bioavailability. This study successfully interpreted and described experimental data by developing a mathematical model to establish the relationship between mill settings and milled drug properties.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Agricultural Engineering
Andrey A. Lipin, Aleksandr G. Lipin, Ryszard Wojtowicz
Summary: A new diffusion model is proposed to simulate nutrient release from coated fertiliser particles at all stages. The model is universal and can predict the release rate and pattern for all types of coatings given a diffusion mechanism. The model considers nutrient diffusion in the solution within the coating layer, depending on the moisture content and counter diffusive flux of moisture. Experimentally verified with urea release data, the model adequately describes nutrient release from polymer-coated urea.
BIOSYSTEMS ENGINEERING
(2023)
Article
Mathematics, Interdisciplinary Applications
Flavia M. R. Hirata, Daniel C. P. Jorge, Felipe A. C. Pereira, Lacita M. Skalinski, Gustavo Cruz-Pacheco, M. Lourdes M. Esteva, Suani T. R. Pinho
Summary: Since the 1980s, the prevalence of diseases caused by arboviruses transmitted by Aedes Aegypti mosquitoes has increased in the Americas. This study investigates the effect of virus co-circulation on the transmission of Dengue, Zika, and Chikungunya in the region, indicating both cross-protection and cross-enhancement among these viruses. Through modeling and analysis of epidemics data in Brazilian cities during 2015-2016, the study reveals the epidemic behavior associated with Zika's entrance in 2015 and evaluates the importance of population size and initial cases for the subsequent development of both diseases. Based on the findings from simultaneous epidemics, the study demonstrates regions of parameter compatibility for population cross-protection.
CHAOS SOLITONS & FRACTALS
(2023)
Review
Engineering, Aerospace
Qingyu Meng, Bing Guo, Qingliang Zhao, Hao Nan LI, Mark J. Jackson, Barbara S. Linke, Xichun Luo
Summary: Grinding is widely used in material removal processes, and grinding force plays a crucial role in various aspects of the grinding process. This article reviews the theoretical methods and applications of grinding mechanics, providing insights into modeling principles, limitations, and future trends. Accurate prediction of grinding forces is essential for optimizing grinding parameters and machine design.
CHINESE JOURNAL OF AERONAUTICS
(2023)
Article
Multidisciplinary Sciences
Wei Du, Feng Gao, Peng Cui, Zhiwu Yu, Wei Tong, Jihao Wang, Zhuang Ren, Chuang Song, Jiaying Xu, Haifeng Ma, Liyun Dang, Di Zhang, Qingyou Lu, Jun Jiang, Junfeng Wang, Li Pi, Zhigao Sheng, Qingyi Lu
Summary: In this study, a reciprocal effect between molecular geometry and crystal structure is reported, which triggers a twisting-untwisting-retwisting cycle for tri-cobalt salicylate hydroxide hexahydrate. This research provides a new concept for designing reversible processes and brings a new perspective in crystallography.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Juan Xue, Xuewu Yin, Lulu Xue, Chenglin Zhang, Shihua Dong, Li Yang, Yuanlai Fang, Yong Li, Ling Li, Jiaxi Cui
Summary: Many organisms produce stunning optical displays based on structural color, achieved through the interaction of light with micro-/nano-structures. Unfortunately, current synthetic materials are often brittle and energy-intensive. Inspired by peacock feathers, researchers have developed a self-growing photonic composite system that allows for easy tuning of coloration. This innovative method offers flexibility, toughness, self-healing ability, and reshaping capability, making it a promising solution for various applications of structural color materials.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Shao-Wen Yao, Waqas Ali Faridi, Muhammad Imran Asjad, Adil Jhangeer, Mustafa Inc
Summary: This study focuses on the application of fractional calculus in the mathematical model of atherosclerosis inflammation and proposes a model with memory function in place of initial conditions utilizing the Atangana-Baleanu fractional operator. The obtained solution is discussed to be unique with qualitative analysis carried out on the proposed model. The authors are confident in the effectiveness of the generated mathematical fractional-order atherosclerosis inflammation model and suggest potential new ideas for testing and experiments in the future.
RESULTS IN PHYSICS
(2021)
Article
Polymer Science
Yingsheng Lai, Jiajun Li, Mao Chen, Yeping Wu, Yinyu Zhang, Xiuli Zhao, Zhongtao Chen
Summary: In this study, an epoxy thermoset material was reported to exhibit multiple color changes under different mechanical stimulations. The intensity, type, and duration of mechanical stimulation could be revealed by a combination of disulfide and rhodamine mechanochromophores. The relative intensity of color changes was affected by the collision energy between the two mechanochromophores.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
M. T. van Rossem, S. Wilks, P. R. Secor, M. Kaczmarek, G. D'Alessandro
Summary: This study investigates the effect of antibiotic diffusion in a virus liquid crystal system using homogenization method. It is found that adsorption plays a key role in increasing antibiotic diffusion time and thus antibiotic tolerance. This demonstrates the importance of physical mechanisms in increasing antibiotic tolerance in virus liquid crystal systems.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Engineering, Manufacturing
Shuying Yang, Ruijun Liang, Weifang Chen, Penghang Xu
Summary: Grinding is a crucial method for gear finishing, and the analysis and prediction of grinding force are essential to understand its mechanisms. In this study, a theoretical model was established to calculate the gear form grinding force using a geometry model. The accuracy of the model was confirmed through grinding experiments. These findings are significant for parameter optimization during gear form grinding.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
(2022)
Article
Pharmacology & Pharmacy
Bwalya A. Witika, Jesse-Clint Stander, Vincent J. Smith, Roderick B. Walker
Summary: Combining lamivudine and zidovudine in a nano co-crystal form within a suitable hydrogel carrier exhibit improved toxicity profiles and sustained drug release. Stimuli-responsive delivery systems offer an opportunity to control and prolong drug delivery, reducing issues with medication adherence.
Article
Engineering, Mechanical
Jiju Guan, Zhengbing Zhu, Lanyu Yang, Yu Xia, Xuefeng Xu, Shuiquan Huang
Summary: In this study, the difficulty of grinding fluid entering the grinding area was overcome by preparing CNTs@T304 nano-capsules. The nano-capsules were used as additives to prepare resin grinding wheels and nanofluids. The results showed that the nano-capsule wheel significantly reduced the grinding force and temperature, increased the surface roughness and grinding ratio when grinding GCr15 steel.
Review
Chemistry, Medicinal
Federica Tonon, Rossella Farra, Cristina Zennaro, Gabriele Pozzato, Nhung Truong, Salvatore Parisi, Flavio Rizzolio, Mario Grassi, Bruna Scaggiante, Fabrizio Zanconati, Deborah Bonazza, Gabriele Grassi, Barbara Dapas
Summary: Hepatocellular carcinoma is a common and deadly type of tumor, with limited effective therapeutic approaches. Zebrafish, with its attractive features, has become a valuable animal model for studying HCC and testing new strategies against the disease.
Article
Chemistry, Applied
Tilen Kopac, Michela Abrami, Mario Grassi, Ales Rucigaj, Matjaz Krajnc
Summary: A simple relation between pendant groups of polymers in hydrogels is introduced to determine the crosslink density of complex hydrogel systems. Furthermore, the rheological properties and their potential connection to design complex hydrogel systems with desired properties have been thoroughly investigated. The article also presents a new mathematical model for determining the crosslink density of crosslinked hydrogels and develops a combined use of rheology and low field nuclear magnetic resonance spectroscopy for the characterization of hydrogel networks.
CARBOHYDRATE POLYMERS
(2022)
Article
Polymer Science
Tommasina Coviello, Franco Alhaique, Chiara Di Meo, Pietro Matricardi, Elita Montanari, Nicole Zoratto, Mario Grassi, Michela Abrami
Summary: This study investigates the effects of the addition of borax on a mixed system of Scleroglucan and guar gum. It reveals synergistic effects in terms of critical time, mesh size, and crosslinking density. The study also finds that the flexible chains of guar gum contribute to the self-healing properties of the mixed gel system.
EXPRESS POLYMER LETTERS
(2022)
Article
Engineering, Biomedical
Davide Porrelli, Michela Abrami, Patrizia Pelizzo, Cristina Formentin, Chiara Ratti, Gianluca Turco, Mario Grassi, Gianluca Canton, Gabriele Grassi, Luigi Murena
Summary: The study of bone morphology is essential for understanding bone diseases and mechanical properties, and traditional diagnostic techniques lack qualitative and quantitative information. In recent years, new technologies like CT and MRI have been used to study bone structure and porosity. Unlike micro-CT, LF-NMR is able to detect significant differences in trabecular bone porosity between osteoporotic and osteoarthritic patients.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Instruments & Instrumentation
Serena Bertoni, Dritan Hasa, Beatrice Albertini, Beatrice Perissutti, Mario Grassi, Dario Voinovich, Nadia Passerini
Summary: Green Chemistry has gained widespread attention in the pharmaceutical field. This review focuses on spray congealing and mechanochemical activation, two technologies that address challenges related to transforming poorly watersoluble drugs into bioavailable solid dosage forms. The article provides an overview of the principles, equipment, and applications of these particle-engineering technologies, with specific attention to case studies from Italian Universities.
DRUG DELIVERY AND TRANSLATIONAL RESEARCH
(2022)
Article
Engineering, Multidisciplinary
Stefano A. Mezzasalma, Michela Abrami, Gabriele Grassi, Mario Grassi
Summary: This article presents a statistical mechanics theory for rubber-like elasticity in swollen and unswollen polymer networks. The theory derives new statistical and mechanical laws and proposes a theoretical-experimental approach to identify the end-to-end length distribution in polymer networks. The study finds that different polymer networks have different end-to-end distributions, which are not Gaussian.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2022)
Article
Instruments & Instrumentation
Michela Abrami, Massimo Maschio, Massimo Conese, Marco Confalonieri, Francesco Salton, Fabio Gerin, Barbara Dapas, Rossella Farra, Alessandra Adrover, Gesmi Milcovich, Claudia Fornasier, Alice Biasin, Mario Grassi, Gabriele Grassi
Summary: Cystic fibrosis is a disease characterized by the production of viscous mucoid secretions, which affects the muco-ciliary clearance and leads to inflammation and bacterial infection. Understanding the mucus nanostructure and drug penetration is crucial for improving therapy efficacy. The combined use of rheology and low field NMR can evaluate the effects of chest physiotherapy on CF sputum characteristics and enhance drug penetration through respiratory mucus.
DRUG DELIVERY AND TRANSLATIONAL RESEARCH
(2022)
Article
Oncology
Federica Tonon, Maja Cemazar, Urska Kamensek, Cristina Zennaro, Gabriele Pozzato, Sergio Caserta, Flora Ascione, Mario Grassi, Stefano Guido, Cinzia Ferrari, Laura Cansolino, Francesco Trotta, Biljana Grcar Kuzmanov, Giancarlo Forte, Fabiana Martino, Francesca Perrone, Riccardo Bomben, Valter Gattei, Nicola Elvassore, Erminio Murano, Nhung Hai Truong, Michael Olson, Rossella Farra, Gabriele Grassi, Barbara Dapas
Summary: The study demonstrates that 5-Aza can impair the development of HCC by upregulating miR-139-5p, which then affects the proliferative and migratory pathways of HCC.
Review
Pharmacology & Pharmacy
Nadia Halib, Nicola Pavan, Carlo Trombetta, Barbara Dapas, Rossella Farra, Bruna Scaggiante, Mario Grassi, Gabriele Grassi
Summary: The treatment of urological cancers has improved, but there is a need for novel therapeutic options for advanced and drug-resistant cancers. siRNA presents a promising strategy, but protecting its fragility in the biological environment is a challenge.
Article
Pharmacology & Pharmacy
M. Abrami, M. Grassi, D. Masiello, G. Pontrelli
Summary: The prediction of drug dissolution profiles is crucial for understanding drug's pharmacokinetic behavior and the bioavailability of dosage forms. A mathematical model has been developed in this study to describe the dissolution process of irregularly shaped particles, taking into account both surface kinetics and convective diffusion. The model theoretically shows that the dissolution rate is nonlinearly dependent on the surface curvature, and considers the subsequent recrystallization process in the bulk fluid. The simplicity and ability to determine model parameters using common techniques are the main advantages of this model, allowing the evaluation of the importance of solid wettability on the dissolution process. The proposed model has been demonstrated to be important in describing the experimental dissolution data of theophylline monohydrate.
EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS
(2022)
Review
Chemistry, Medicinal
Pasquale Losurdo, Nicolo de Manzini, Silvia Palmisano, Mario Grassi, Salvatore Parisi, Flavio Rizzolio, Domenico Tierno, Alice Biasin, Chiara Grassi, Nhung Hai Truong, Gabriele Grassi
Summary: Despite progress in the diagnosis and therapy of gastrointestinal cancers, novel therapeutic approaches are urgently needed to combat high mortality. Small interfering RNA (siRNA), a type of double-stranded RNA molecule that specifically targets pathological genes, has shown therapeutic potential. To overcome degradation and target tumors effectively, siRNAs have been formulated with smart delivery systems such as polymers and lipids. However, the targeting of tumor cells remains a challenge. In this article, the general features of gastrointestinal cancers, siRNA characteristics, representative delivery systems, research papers, and clinical trials related to gastrointestinal cancers and liver cirrhosis are discussed.
Article
Chemistry, Physical
Jacopo Dosso, Hamid Oubaha, Francesco Fasano, Sorin Melinte, Jean-Francois Gohy, Colan E. Hughes, Kenneth D. M. Harris, Nicola Demitri, Michela Abrami, Mario Grassi, Davide Bonifazi
Summary: In this study, the synthesis of a boron nitride-doped polyphenylenic material through a [4 + 2] cycloaddition reaction is described. The material forms organogels in chlorinated solvents and exhibits excellent thermal and chemical stability, making it a potential candidate for solid-state electrolytes in lithium-ion batteries.
CHEMISTRY OF MATERIALS
(2022)
Review
Pharmacology & Pharmacy
Tanja Jesenko, Simona Kranjc Brezar, Maja Cemazar, Alice Biasin, Domenico Tierno, Bruna Scaggiante, Mario Grassi, Chiara Grassi, Barbara Dapas, Nhung Hai Truong, Michela Abrami, Fabrizio Zanconati, Deborah Bonazza, Flavio Rizzolio, Salvatore Parisi, Giorgia Pastorin, Gabriele Grassi
Summary: Hepatocellular carcinoma (HCC) is a major global health challenge, ranking third in cancer deaths worldwide. Despite recent therapeutic advances, prognosis remains poor, necessitating the development of novel strategies. This study focuses on targeting molecules with aberrant expression confined to tumor cells, particularly non-coding RNAs (ncRNAs) such as miRNAs, lncRNAs, and circRNAs. These ncRNAs play a significant role in regulating various aspects of HCC, including proliferation, apoptosis, invasion, and metastasis. The review provides the latest state-of-the-art approaches, highlighting key trends and opportunities for advanced and efficacious HCC treatments.
Article
Mathematics, Applied
J. A. Ferreira, Paula de Oliveira, P. M. da Silva, M. Grassi
Summary: In summary, following the implantation of medical devices, bacteria can form biofilms which increase resistance to antibiotics. Researchers suggest coating devices with antibacterial agents is a promising strategy to prevent biofilm formation. A mathematical model has been presented to simulate the action of antibiotics released from medical surfaces to combat bacterial infection, considering factors such as infection focus, bacterial inoculation, and resistance.
SIAM JOURNAL ON APPLIED MATHEMATICS
(2021)
Article
Engineering, Biomedical
Rossella Laurano, Monica Boffito, Michela Abrami, Mario Grassi, Alice Zoso, Valeria Chiono, Gianluca Ciardelli
Summary: The study presents a thermo- and pH-responsive hydrogel (P-CHP407) with a significant amount of -COOH groups for controlled and localized drug release, showing enhanced drug delivery kinetics and the potential use as smart delivery systems in the treatment of chronic infected wounds.
BIOACTIVE MATERIALS
(2021)
Article
Engineering, Chemical
Qing Han, Mengqing Shi, Linkai Han, Di Liu, Mingwei Tong, Yuxin Xie, Zhonghua Xiang
Summary: Developing highly efficient bifunctional oxygen electrocatalysts is crucial for zinc-air flow batteries. Metal-organic frameworks (MOFs) and covalent organic polymers (COPs) have emerged as promising alternatives due to their designable and controllable atomic-level structures. However, their catalytic performances are limited by conductivity and catalytic activity. In this study, nanosheet FeNi-MOF and iron phthalocyanine rich COP hybrid materials are assembled through the pi-pi stacking effect to create highly efficient bifunctional electrocatalysts. The resulting catalyst exhibits superior catalytic performance and stability, making it a promising candidate for zinc-air flow batteries.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Daria Grigorash, Dmytro Mihrin, Rene Wugt Larsen, Erling H. Stenby, Wei Yan
Summary: The article introduces a new approach to describe the cross-association between molecules, allowing for the simulation of weakly bound molecular complexes with different conformations in mixtures. By incorporating this approach into the equation of state, accurate predictions of vapor-liquid equilibrium and liquid-liquid equilibrium can be made. The new method is validated through experiments on alcohol and acid mixtures, with the results compared to experimental data, demonstrating its accuracy and reliability.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Mohammed Al-Sharabi, Daniel Markl, Vincenzino Vivacqua, Prince Bawuah, Natalie Maclean, Andrew P. E. York, Axel Zeitler
Summary: This study used terahertz pulsed imaging to investigate the transport process of different solvents into ceramic catalytic materials. The results showed that the heating rate of the samples influenced the water transport rate, while the viscosity of 1-octanol slowed down its transport.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chukwunonso Anyaoku, Sati Bhattacharya, Rajarathinam Parthasarathy
Summary: This study aimed to enhance understanding of settling dynamics in viscoelastic fluids by developing a semi-empirical correlation and a dimensionless ratio, which accurately described the characteristics of settling suspensions.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Antti I. Koponen, Janika Viitala, Atsushi Tanaka, Baranivignesh Prakash, Olli-Ville Laukkanen, Ari Jasberg
Summary: This study focuses on the development of foam application chemicals for the paper and board industry. The research explores the rheology of the polyvinyl alcohol foam used in the process. Measurements were conducted to determine the foam viscosity and slip flow. The results suggest that slip flow contributes significantly to the total flow rate, and the obtained viscosity and slip models provide a solid foundation for industrial processes.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Dalei Sun, Jinghui Cai, Yating Yang, Zhiwu Liang
Summary: In this study, Fe-doped alpha-Bi2O3 catalysts with different Fe/Bi molar ratios were synthesized and utilized in the carbonylation of isobutyl amine with CO2. The results showed that Fe doping significantly enhanced the catalytic abilities of alpha-Bi2O3.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Yuan Tian, Xinxin Wang, Yanrong Liu, Wenping Hu
Summary: This paper predicts the solubility of nitrogen gas in ionic liquids (ILs) using two quantitative structure-property relationship (QSPR) models. By combining machine learning methods and ionic fragments contribution method, the accuracy and reliability of the prediction models are improved.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Liwang Wang, Wei Liu, Pan Yang, Yulong Chang, Xiaoxu Duan, Lingyu Xiao, Yaoming Hu, Jiwei Wu, Liang Ma, Hualin Wang
Summary: This study investigates the effective phase interfacial area (ae) of hydro-jet cyclones at different injection angles. The results show that a 45 degrees upward incidence angle yields the most favorable flow field characteristics for efficient mass transfer. The significant enhancement in ae of the hydro-jet cyclones offers the advantage of reducing equipment volume and cost savings.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Chuanjun Wu, Jiangzhi Chen, Jiyue Sun, I-Ming Chou, Shenghua Mei, Juezhi Lin, Lei Jiang
Summary: In this study, the solubility of H2S hydrate in water was measured using Raman spectroscopy. The results showed that the solubility increases with temperature under certain equilibrium conditions, and the solubility also depends on pressure and temperature under different equilibrium conditions. A thermodynamic model based on the van der Waals-Platteeuw theory was developed to predict the solubility, demonstrating its accuracy.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Lorenzo Brivio, Serena Meini, Mattia Sponchioni, Davide Moscatelli
Summary: This study investigates the influence of three main parameters and proposes a kinetic model to predict the optimal operating conditions for high yield of dimethyl terephthalate (DMT) in the chemical recycling process of polyethylene terephthalate (PET).
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Hongju Lin, Fanhui Liao, Yanchang Chu, Mingyu Xie, Lun Pan, Yuanyuan Wang, Lijian Leng, Donghai Xu, Le Yang, Gangfeng Ouyang
Summary: A honeycomb NiCo/C-Na catalyst with a micro-meso-macroporous structure has been fabricated and shown to have significantly higher catalytic activity for the decarboxylation of fatty acids. It also proves to be efficient in upgrading sludge HTL bio-crude, resulting in a biofuel with decreased viscosity and increased density.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Xiaoxian Li, Rui Li, Min Lin, Mingde Yang, Yulong Wu
Summary: A series of coated non-noble metal porous carbon catalysts were synthesized and applied to the aqueous-phase deoxygenation of algal bio-oil. One of the catalysts showed excellent deoxygenation selectivity and catalytic activity at 250 degrees C. The catalyst exhibited good hydrothermal stability and the reaction mechanism was proposed based on product analysis and active site analysis.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
M. V. Chudakova, M. V. Popov, P. A. Korovchenko, E. O. Pentsak, A. R. Latypova, P. B. Kurmashov, A. A. Pimenov, E. A. Tsilimbaeva, I. S. Levin, A. G. Bannov, A. V. Kleymenov
Summary: A series of catalysts with different potassium contents were prepared using solution combustion synthesis and characterized using various techniques. The results showed that the potassium content affected the phase composition and texture of the catalysts. The addition of a small amount of potassium resulted in a change in particle size distribution, leading to higher hydrogen yield. The Ni-1%K2O/Al2O3 catalyst exhibited the highest hydrogen yield at temperatures of 675 and 750 degrees Celsius.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Aliakbar Roosta, Nima Rezaei
Summary: In this study, we modified the electrolyte cubic plus association equation of state (e-CPA EoS) and integrated it with two electrical conductivity models to estimate the electrical conductivity of 11 monovalent electrolyte solutions in water. The modified e-CPA model demonstrated better performance and the hybridization with electrical conductivity models resulted in two predictive models for estimating the electrical conduction of dilute and concentrated electrolyte solutions. These predictive models showed relative average percentage deviations (AARD) of 11.15% and 13.87% over wide ranges of temperature and electrolyte concentration.
CHEMICAL ENGINEERING SCIENCE
(2024)
Article
Engineering, Chemical
Haoren Niu, Jianzheng Wang, Qingzhu Jia, Qiang Wang, Jin Zhao, Fangyou Yan
Summary: A study developed two quantitative structure-property relationship models for the complexation performance of alpha- and beta-cyclodextrins and validated their stability and predictive ability through internal and external validation. The models showed robustness and satisfactory performance, as demonstrated by the experimental results and model validations. These models can effectively predict the binding constants between cyclodextrins and various types of molecules, providing valuable tools for cyclodextrin design.
CHEMICAL ENGINEERING SCIENCE
(2024)
