Article
Chemistry, Physical
M. A. Deyab, M. I. Nessim, Abdelfattah Haikal, Q. Mohsen, N. A. Khalil
Summary: This paper describes the corrosion inhibiting action of four new imidazolium-derived ionic liquids (ILs). Various analytical techniques were used to confirm their molecular formula and characterize their adsorption behavior on a steel substrate. Results showed that these ILs exhibited effective corrosion suppression and adsorbed onto the steel surface through physi-chemisorption. SEM/EDX and FTIR analysis further supported the adsorption process of the ILs.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Polymer Science
Michael A. Smirnov, Veronika S. Fedotova, Maria P. Sokolova, Alexandra L. Nikolaeva, Vladimir Yu Elokhovsky, Mikko Karttunen
Summary: A novel approach for 3D-printing BC reinforced UV-curable ion gels using two-component solvents has been demonstrated in this study. The cholinium-based systems showed lower viscosity and improved stability compared to the imidazolium-based ones. The grafting of poly(acrylic acid) onto cellulose nanofibers resulted in higher elongation at break and enhanced mechanical properties for choline chloride-based compositions.
Article
Chemistry, Multidisciplinary
Yuval Simha, Gil Daniels, Amalya Goldman, Elihay Kuniavsky, Dmitry Tsvelikhovsky
Summary: A new strategy for direct access to fully substituted polycyclic imidazolium salts using alpha-enaminones and proline as the reagents is reported. This open-flask operation is a catalyst-, metal-, and Lewis acid-free green process, which does not require an ion-exchange step. It can produce good yields with minimal formation of side products, and is not limited to aryl substituents.
Article
Engineering, Environmental
Tian-Lin Ren, Xi-Wen Ma, Xiao-Qiong Wu, Li Yuan, Yang-Li Lai, Zhong-Hua Tong
Summary: Thermally activated persulfate oxidation was used for the degradation of ionic liquids, showing effective removal of ILs. Factors affecting the degradation included temperature, PS concentration, solution pH, and alkyl chain length, while intermediate products and degradation mechanism were identified. Free radicals generated in the activated PS system had different effects on degradation, with SO4?? radicals attacking the side chain and ?OH attacking the core, offering a potential environmentally friendly approach for ILs treatment.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Nuzahat Habibul, Yan-Yun Hu, Yi Hu, Guo-Ping Sheng
Summary: This study investigated the uptake and toxicity of imidazolium based ionic liquids (ILs) with different alkyl chain lengths by ryegrass. Results showed that long alkyl chain ILs had stronger growth inhibition on plants compared to short chain ILs, which were more easily absorbed and accumulated in plant tissues.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Polymer Science
David Domingo Huguet, Aitor Gual, Ricard Garcia-Valls, Adrianna Nogalska
Summary: This study demonstrates the potential of improving CO2 capture capabilities by supporting ionic liquids (ILs) on a polymeric matrix. The internal morphology and surface characteristics of the membrane were found to influence the ILs sorption capacity and CO2 solubility.
Article
Biochemistry & Molecular Biology
Luis Guzman, Cristobal Parra-Cid, Etiennette Guerrero-Munoz, Carlos Pena-Varas, Efrain Polo-Cuadrado, Yorley Duarte, Ricardo I. Castro, Luz Stella Nerio, Ramiro Araya-Maturana, Tewodros Asefa, Javier Echeverria, David Ramirez, Oscar Forero-Doria
Summary: This study evaluated the antimicrobial properties of different ILs, finding that some exhibit good antibacterial activity against S. aureus, E. coli, and P. aeruginosa. Particularly, tert-butyl N-methylphenolimidazolium salts showed the best antibacterial efficacy. Furthermore, the antimicrobial effectiveness was found to be influenced by the alkyl chain length and substituents on the phenolic ring.
BIOORGANIC CHEMISTRY
(2021)
Article
Polymer Science
Kathryn E. O'Harra, Emily M. DeVriese, Erika M. Turflinger, Danielle M. Noll, Jason E. Bara
Summary: This study introduces a series of vinyl-imidazolium-based polyelectrolyte composites modified with multivalent imidazolium-benzene ionic liquids or crosslinked with novel cationic crosslinkers. The composites exhibited enhanced CO2 permeabilities and selectivities against N-2 or CH4, demonstrating the potential for tuning the properties and transport behaviors of ionic polymers using ionic liquid-inspired small molecules.
Article
Engineering, Chemical
Kun Jiang, Guohui Zhou, Timing Fang, Xiaomin Liu
Summary: The self-assembly behavior of ionic liquids in aqueous solution was studied through molecular dynamics simulations, revealing the dominant role of interactions between tail groups in stabilizing vesicles and the influence of membrane thickness and alkyl chain arrangement on vesicle permeability. The interdigitated structure of tail groups reduced water exchange rate, while the orientation of the imidazolium ring promoted water molecules approaching hydrophobic regions. These findings suggest the potential for obtaining vesicles with excellent permeability properties by screening the hydrophilic and hydrophobic properties of ILs for applications in separation and drug delivery processes.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Abdelrahman O. Ezzat, Hamad A. Al-Lohedan, Ayman M. Atta
Summary: This study focuses on the preparation of new green oilfield chemicals based on ionic liquids with enhanced demulsification efficiency. Through modifications of the chemical structure, a new amphiphilic molecule was synthesized, showing promising demulsification performance at low doses and temperatures.
Article
Chemistry, Physical
A. N. El-hoshoudy, A. Ghanem, S. M. Desouky
Summary: Ionic liquids have been utilized as green chemistry alternatives to surfactants for dispersing asphaltene in petroleum feed streams. Through experimental and computational methods, their efficiency as asphaltene dispersants have been demonstrated.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Salhah H. Alrefaee
Summary: Through DFT computational study, it was found that imidazolium and pyridinium based ionic liquids exhibit good anticorrosive potential, with corrosion inhibition performance depending on the nature of alkyl groups and halide ions. Among the studied ionic liquids, certain compounds were found to show the best corrosion inhibition performance in both imidazolium and pyridinium based categories.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Pratik Dhakal, Wyatt Gassaway, Jindal K. K. Shah
Summary: Knowledge of frontier orbital energies, such as HOMO and LUMO, is crucial for studying stability, corrosion inhibition potential, and reactivity of compounds. Density functional theory (DFT) calculations provide an approach to estimate these energies, but it becomes computationally intensive for large-scale screening. In this article, a machine learning model based on extreme gradient boosting is developed to predict HOMO and LUMO energies, resulting in significantly reduced computational time.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Biochemistry & Molecular Biology
Jakub Suchodolski, Joanna Feder-Kubis, Anna Krasowska
Summary: Imidazolium ionic liquids with alkyl or alkyloxymethyl chains and a natural menthol substituent showed high antifungal and antiadhesive properties against various Candida species. They disrupted fungal plasma membranes without significant hemolytic properties, inhibiting biofilm formation on different denture materials. The compounds could potentially be used as anti-fungal denture cleaners or fixatives, with low toxicity towards mammalian erythrocytes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Physical
Yumiao Jiang, Yingxue Liu, Shuai Gao, Xugeng Guo, Jinglai Zhang
Summary: The corrosion inhibition behavior of three imidazolium-based ionic liquids (ILs) on AZ31B Mg alloy in 0.5 wt% NaCl solution was studied using electrochemical measurements and theoretical computations. The results showed that [DMIm][NTf2] exhibited the best inhibition performance among the ILs studied.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Rosemary K. Le, Maryam Raeeszadeh-Sarmazdeh, Eric T. Boder, Paul D. Frymier
Article
Chemistry, Physical
Bradley J. Harris, Xiaolin Cheng, Paul Frymier
JOURNAL OF PHYSICAL CHEMISTRY B
(2016)
Article
Plant Sciences
Khoa Nguyen, Michael Vaughn, Paul Frymier, Barry D. Bruce
PHOTOSYNTHESIS RESEARCH
(2017)
Article
Biochemistry & Molecular Biology
Rosemary K. Le, Bradley J. Harris, Ifeyinwa J. Iwuchukwu, Barry D. Bruce, Xiaolin Cheng, Shuo Qian, William T. Heller, Hugh O'Neill, Paul D. Frymier
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS
(2014)
Article
Chemistry, Physical
Ifeyinwa J. Iwuchukwu, Ernest Iwuchukwu, Rosemary Le, Caitlin Paquet, Rapinder Sawhney, Barry Bruce, Paul Frymier
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2011)
Article
Green & Sustainable Science & Technology
Bruce Tonn, Paul D. Frymier, Dorian Stiefel, Leah Soro Skinner, Nethika Suraweera, Rachel Tuck
JOURNAL OF CLEANER PRODUCTION
(2014)
Article
Chemistry, Physical
Bradley J. Harris, Xiaolin Cheng, Paul Frymier
JOURNAL OF PHYSICAL CHEMISTRY B
(2014)
Article
Biophysics
Samantha T. Clark, Matthias M. L. Arras, Stephen A. Sarles, Paul D. Frymier
Summary: This study investigates the association of a small molecule with two different membrane types by modeling and experimentally observing the association of detergent Triton X-100 with egg phosphatidylcholine (ePC) liposomes and egg phosphatidic acid (ePA) liposomes at varying ratios. A saturation model was developed to predict the association of detergent with each liposome type when lipid bilayers are fully saturated, based on the detergent to lipid ratio and relative absorbance intensity for each pure liposome species at saturation.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Review
Biochemistry & Molecular Biology
Baker A. Martin, Paul D. Frymier
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
(2017)
Meeting Abstract
Chemistry, Multidisciplinary
Sarah Williamson, Leah Parks, Rosemary Le, Maryam Raeeszadeh Sarmazdeh, Paul Frymier, Eric Boder
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2016)
Meeting Abstract
Chemistry, Multidisciplinary
Bradley J. Harris, Rosemary K. Le, Paul D. Frymier
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2014)
Meeting Abstract
Chemistry, Multidisciplinary
Rosemary Le, Paul Frymier
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2014)
Meeting Abstract
Chemistry, Multidisciplinary
Rosemary Le, Paul Frymier
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2013)
Meeting Abstract
Chemistry, Multidisciplinary
Paul Frymier, Rosemary Le
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2013)
Meeting Abstract
Chemistry, Multidisciplinary
Bradley J. Harris, Paul D. Frymier
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2013)