Article
Biochemistry & Molecular Biology
Saheli Mitra, Veerendra Kumar Sharma, Jyotsna Bhatt Mitra, Subhadip Chowdhury, Mrinmay Kumar Mukhopadhyay, Ramaprasad Mukhopadhyay, Sajal Kumar Ghosh
Summary: Ionic liquids (ILs) are currently attracting researchers due to their potential applications in various fields. In biomedical research, understanding the interactions between ILs and cellular membranes, mimicked with lipid bilayers and monolayers, is crucial. Among the three imidazolium-based ILs studied, [DMIM][BF4] showed the strongest interaction with liver lipid membranes. This interaction is mainly driven by entropy and results in ILs penetrating the core of lipid bilayers. Dynamic light scattering (DLS) measurements suggest that [DMIM][BF4] does not affect the stability of lipid vesicles, while X-ray reflectivity (XRR) measurements reveal a concentration-dependent change in monolayer structure.
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2021)
Article
Chemistry, Physical
Pablo Martinez-Crespo, Martin Otero-Lema, Oscar Cabeza, Hadrian Montes-Campos, Luis M. Varela
Summary: In this study, classical Molecular Dynamics and ab initio Density Functional Theory simulations were used to investigate the structure and single particle dynamics of ternary mixtures. The coordination numbers and electrical conductivities of different mixtures were calculated, and the differences between mixtures with protic and aprotic ionic liquids were analyzed, along with solvation and charge transport mechanisms.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Engineering, Chemical
Haiyan Jiang, Lu Bai, Kuilin Peng, Lei Yuan, Shuang Zheng, Shaojuan Zeng, Shuangjiang Luo, Xiangping Zhang
Summary: Ionic liquids (ILs)-based membranes, such as Pebax blended membranes with ILs [EtOHmim] [NTf2] and [EtOHim] [NTf2], show improved NH3 separation performance due to hydrogen bonding interaction and moderate interaction between ILs and NH3 molecules. The introduction of ILs significantly enhances NH3 selectivity and permeability in the membranes. The study highlights the importance of moderate interaction between ILs and NH3 molecules for effective NH3 separation.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Physical
Zhenlei Wang, Fang Yan, Lu Bai, Xiangping Zhang, Xiaomin Liu, Xiaochun Zhang
Summary: Ionic liquid/polymer hybrid membranes are a research hotspot for CO2 separation, but the lack of molecular insight into the separation mechanism hinders their development. This study investigates the CO2/CH4 separation process in PVDF membranes with [Bmim][PF6] and [Bmim][NTf2] through molecular dynamics simulations. The results show that ILs can enhance the flexibility of PVDF chains and improve gas permeation and diffusion, with [Bmim][NTf2]/PVDF membrane exhibiting better CO2/CH4 separation performance.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Jose M. Otero-Mato, Hadrian Montes-Campos, Victor Gomez-Gonzalez, Martin Montoto, Oscar Cabeza, Svyatoslav Kondrat, Luis M. Varela
Summary: This study investigates the microscopic structure and transport properties of ions in mixtures of 1-butyl-3-methylimidazolium and 1-butyl-3-ethylimidazolium iodide with ethanol. The results reveal essential differences in ionic structure compared to the same ionic liquids in water. The conductivities of these systems are calculated and compared with experimental data, showing reasonable agreement. The pseudo-lattice random-alloy model accurately describes the conductivity data, providing a valuable tool for understanding the concentration dependence of ionic liquid-solvent mixtures.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Biochemistry & Molecular Biology
Maksim A. Kalutsky, Timur R. Galimzyanov, Rodion J. Molotkovsky
Summary: This study investigates the fusion mechanism of monolayer and bilayer membranes during the interaction between lipid droplets and peroxisomes. Through energy trajectory and molecular dynamics simulation, it is found that the stalk formed during the fusion process is energetically more stable and has a lower energy barrier compared to bilayer fusion. The further evolution of the stalk is dependent on the spontaneous curvature of the membrane, possibly related to the incorporation of free fatty acids.
Article
Environmental Sciences
Imran Khan Swati, Qazi Sohaib, Shuyun Cao, Mohammad Younas, Dan Liu, Jianzhou Gui, Mashallah Rezakazemi
Summary: Four ionic liquids were synthesized for the separation of gases CO2/N-2 and CO2/CH4 through supported ionic liquid membranes (SILMs), with [BSmim][tos] showing the highest solubility coefficient and permeability, as well as the highest selectivity values. The ILs synthesized for this work can be ranked as [BSmim][tos] > [BSmpy][tos] > [Bmim][Cl] > [Bpy][Cl], indicating their potential use for CO2 separation through SILMs.
Article
Chemistry, Physical
Pratik Dhakal, Sudip Kumar Das, Jindal K. Shah
Summary: Molecular dynamics simulations were used to study the molecular-level interactions between various ion pairs in a reciprocal ionic liquid mixture. The simulation results showed that the cation [C2mim]' preferred to interact favorably with the anion [DCA]- and its hydrogen bond lifetime increased by a factor of two in the reciprocal mixture.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Chemistry, Physical
Krishnan Damodaran
Summary: This review presents recent developments in the application of NMR spectroscopic techniques in the study of ionic liquids, focusing on their use for structural characterization and dynamics exploration.
PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY
(2022)
Article
Chemistry, Physical
Jose M. Otero-Mato, Alejandro Rivera-Pousa, Hadrian Montes-Campos, Oscar Cabeza, A. Heuer, D. Diddens, Luis M. Varela
Summary: This study investigates the stability and structure changes of binary mixtures of several protic ionic liquids with polyethylene oxide using molecular dynamics simulations. It is found that ethylammonium acetate has a wider solubility range compared to other ionic liquids, and its interaction with the polymer is limited. The presence of the polymer has minimal interference on the single-particle dynamics and lithium transport in the liquid phase, contrary to previous results with other ionic liquids.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Qindan Zhang, Souhila Poncin, Christian Blanchard, Youguang Ma, Huai Z. Li
Summary: The coalescence behavior of ferrofluid drop on its bulk surface was studied experimentally using a high-speed camera. Shape deformations of both the pendant ferrofluid drop and the bulk surface were observed in the axial direction during the approaching process, even without a magnetic field. The angle of the upper pendant peak decreases with increasing magnetic flux density, while the lower ferrofluid peak shows the opposite trend. The coalescing width of the ferrofluid drop follows a power-law relationship.
Article
Nanoscience & Nanotechnology
Haiyan Jiang, Tingting Li, Lu Bai, Jiuli Han, Xiaochun Zhang, Haifeng Dong, Shaojuan Zeng, Shuangjiang Luo, Xiangping Zhang
Summary: This study proposes a functional hybrid membrane composed of polyimide (PI) and ionic liquids (ILs) for selective separation of NH3 and CO2. The inclusion of ILs reduces the gas transport channel and increases the NH3 affinity, resulting in efficient NH3/CO2 separation.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Shuai Tan, Difan Zhang, Manh-Thuong Nguyen, Vaithiyalingam Shutthanandan, Tamas Varga, Roger Rousseau, Grant E. Johnson, Vassiliki-Alexandra Glezakou, Venkateshkumar Prabhakaran
Summary: The functionalization of GO membranes with ILs provides a promising approach for efficient ion separation and critical material recovery. The ILs in the membranes act as spacers, reducing cation mobility and promoting ion desolvation, resulting in an increased water flux. The high separation efficiency of the IL/GO membranes is attributed to the synergistic modification of hydrophobicity and surface charge.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Hua Li, Jianan Wang, Gregory G. Warr, Rob Atkin
Summary: The dynamics of self-assembled liquid nanostructures of ionic liquids near a mica surface were determined using video-rate atomic force microscopy (AFM) data. The AFM videos revealed that the nanostructures near the surface diffused much slower than individual ions in the bulk. This finding has important implications for processes involving concentrated electrolyte interfacial dynamics.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Isabella DeStefano, Gabriella DeStefano, Nicholas J. Paradis, Roshani Patel, Austin K. Clark, Hunter Gogoj, Gurvir Singh, Keertana S. Jonnalagadda, Aashka Y. Patel, Chun Wu, Gregory A. Caputo, Timothy D. Vaden
Summary: The study investigated the thermal unfolding of the copper redox protein azurin in the presence of four different amino acid-based ionic liquids (ILs), showing that these ILs destabilize the protein structure and decrease its melting temperature. ILs with alcohol side chains have a stronger impact on protein stability, while those with acidic side chains have weaker effects.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Biochemistry & Molecular Biology
Raja Narayanasamy, Dandamudi Usharani, Ram Rajasekharan
Summary: This study investigated the role of ABHD16B in lipid metabolism. The overexpression of ABHD16B was found to decrease cellular triacylglycerol levels and increase phospholipid synthesis in yeast cells. Additionally, ABHD16B overexpression led to a reduction in lipid droplets and significant modifications in fatty acid composition. These findings highlight the importance of ABHD16B in lipid homeostasis and provide insights into its regulatory function in cellular lipid metabolism.
CHEMISTRY AND PHYSICS OF LIPIDS
(2024)
