Article
Nanoscience & Nanotechnology
Hongjian Wang, Jiashuai Zhao, Yang Li, Yu Cao, Ziting Zhu, Meidi Wang, Runnan Zhang, Fusheng Pan, Zhongyi Jiang
Summary: The aqueous two-phase interfacial assembly method is proposed for fabricating COF membranes, which exhibit excellent performance in water desalination. The interfacial tension has a significant effect on the membrane structures. Furthermore, this method can be extended to fabricate other COF and metal-organic polymer membranes.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Physical
Dimitrinka Arabadzhieva, Anna Y. Gyurova, Ivan Minkov, Alexander Chinarev, Elena Mileva
Summary: This study investigates the smart regulation of properties of aqueous solutions of two-antennary oligoglycines molecules through variations in pH and initial incubation time. The results show that the size distribution of tectomers is bimodal in acidic conditions and becomes mono-modal in alkaline conditions, with the dimensions of tectomers shifting towards larger entities as pH increases. These trends are further enhanced with longer incubation times. The study provides essential insights into the coupling mechanism of bulk and interfacial phenomena, laying the groundwork for further fine-tuning of tectomer formation and potential applications in drug nanocarriers and impurity extraction from water media.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Parisa Naeiji, Tom K. Woo, Ryo Ohmura, Saman Alavi
Summary: This study investigated the interfacial behavior of tetrabutylammonium bromide (TBAB) aqueous solutions under different conditions. The results showed that TBAB solutions have lower interfacial tension and higher gas adsorption at the interface, which facilitate the formation of semiclathrate hydrates. CO2 exhibits preferential adsorption compared to CH4 due to stronger interactions in the solution. The increased adsorption of CH4 at the solution surface is attributed to the hydrophobic interactions between the TBAB cation and methane gas.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Hao Yuan, Fei Li, Lufan Jia, Ting Guo, Tiantian Kong, Tao Meng
Summary: Compartmentalization is crucial for cells to regulate biological processes. However, it is challenging to create well-ordered compartments with secluded environments in aqueous surroundings. Inspired by bio-catalyzed mineralization, researchers have developed mechanically robust all-aqueous compartments at aqueous/aqueous interfaces. These compartments are created through enzyme-induced biomineralization, which forms a dense layer of particles to encapsulate the aqueous interiors. Unlike current strategies, where compartments are constructed randomly, this in situ bio-synthesized approach provides better control over compartment properties. These all-aqueous compartments have been utilized for drug delivery by sequestering protein drugs and releasing them in gastric environments. This study opens up new possibilities for fabricating compartmentalized materials and structures by integrating aqueous two-phase systems with biomineralization.
Article
Biochemistry & Molecular Biology
Edward J. Calabrese
Summary: This paper provides a thorough assessment of hormetic dose responses in embryonic stem cells, suggesting that this response may serve as a fundamental and highly conserved evolutionary strategy.
CHEMICO-BIOLOGICAL INTERACTIONS
(2022)
Article
Engineering, Chemical
Ariane A. Oshiro, Alexandre M. S. Jorge, Valeria C. Santos-Ebinuma, Jorge F. B. Pereira
Summary: This study proposes an aqueous two-phase system (ATPS) composed of ethanol and dipotassium hydrogen phosphate for Centrifugal Partition Chromatography (CPC). Compared to polymer-based ATPS, the Ethanol/K2HPO4 system overcomes hydrodynamic drawbacks and demonstrates advantages such as short settling time, high interfacial tension, significant density differences, and low viscosity. CPC experiments show that controlling the operating parameters can achieve stable conditions and successful separation of biomolecules using the ethanol/salt ATPS.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Review
Chemistry, Applied
Chuanfang (John) Zhang
Summary: MXenes, as emerging 2D materials, exhibit unique advantages in electrical conductivity, electromagnetic interference shielding, and volumetric capacitance, attracting extensive research and applications. Interfacial assembly of MXenes helps reveal their versatility and impact on novel MXene systems, leading to enhanced device performance.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Chemistry, Physical
Anurag Mishra, Pankaj Tiwari, Lalit Mohan Pandey
Summary: This study investigated the variations in thermodynamic and physicochemical properties of the rhamnolipid-salt system. The results showed that the addition of salts significantly reduced the critical micelle concentration (CMC) and surface tension of rhamnolipids, leading to changes in wettability and the formation of agglomerated structures.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Pawan Kumar, Andrew C. Meng, Kiyoung Jo, Eric A. Stach, Deep Jariwala
Summary: In this study, high-temperature phase transitions and interfacial reactions in 2D PtSe2 were investigated using in situ scanning/transmission electron microscopy (STEM), and the Kirkendall effect was observed. It was found that the 2D nature of PtSe2 plays a key role in the formation of unique one-dimensional interfaces at the edges of the crystals during the formation of Se-poor phases. This discovery provides new opportunities for contact engineering in device applications.
Article
Chemistry, Physical
Niki Abbasi, Janine K. Nunes, Zehao Pan, Tejas Dethe, Ho Cheung Shum, Andrej Kosmrlj, Howard A. Stone
Summary: Liquid-liquid phase separation induced by co-flow of a nonequilibrated aqueous two-phase system within a planar flow-focusing microfluidic device is experimentally demonstrated. Invasion fronts from the outer stream are formed along the top and bottom walls of the microfluidic device, which merge as the system reaches steady-state. The formation and growth of the invasion fronts are driven by Marangoni flow induced by the polymer concentration gradient along the width of the channel during phase separation.
Article
Chemistry, Physical
Han Li, Christopher M. Sims, Rui Kang, Frank Biedermann, Jeffrey A. Fagan, Benjamin S. Flavel
Summary: In this study, highly purified (>80%) left- and right-handed (6,5) single-wall carbon nanotubes (SWCNTs) were separated using aqueous two-phase extraction (ATPE), with limited experimental steps. The optimized surfactant conditions were determined, and analytical ultracentrifugation (AUC) and near-infrared photoluminescence (PL) measurements were used to examine the required conditions for surfactant wrapping and partition coefficient change (PCCCs). This study provides valuable insights into the underlying mechanisms behind surfactant-assisted SWCNT separations and promotes the future use of SWCNT enantiomers in fundamental studies and applications.
Article
Chemistry, Physical
J. D. Hernandez Velazquez, A. Gama Goicochea
Summary: Using mesoscale numerical simulations, the line tension and liquid-liquid correlation length of two immiscible liquids under two-dimensional and quasi-two dimensional conditions are calculated as a function of temperature. The results are compared with experiments on lipid membranes, showing good agreement. The scaling exponents of the line tension and correlation length with temperature are extracted, fulfilling the hyperscaling relationship, and the scaling of specific heat with temperature of the binary mixture is obtained. This work contributes to the understanding of nanomaterial properties using simple scaling laws.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Environmental Sciences
Maria Lbadaoui-Darvas, Satoshi Takahama, Athanasios Nenes
Summary: The study investigates the water uptake mechanism in LLPS particles through molecular dynamics simulations, revealing temperature-dependent features and implications for cloud condensation nuclei activity. The findings suggest that temperature affects gas-particle partitioning, intraparticle water redistribution, and the formation of concentration gradients within the particles.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Biochemistry & Molecular Biology
Yuka Tamura, Tatsuya Ohhata, Hiroyuki Niida, Satoshi Sakai, Chiharu Uchida, Kazuma Masumoto, Fuminori Katou, Anton Wutz, Masatoshi Kitagawa
Summary: The study reveals that female ESCs are more sensitive to camptothecin and have lower gene targeting efficiency than male ESCs, indicating reduced homologous recombination efficiency in female ESCs. Lower HR efficiency is restored when X chromosome inactivation is induced. X-linked gene Brcc3 is involved in promoting proper HR.
Article
Materials Science, Multidisciplinary
Liping Liang, Yuanqi Wang, Weirong Ren, Xinpei Gao, Liqiang Zheng, Fei Lu
Summary: In this study, thermoresponsive IL-based ATPSs were proposed as a platform for synthesizing COF membranes. By optimizing interfacial properties, tight and crystalline COF membranes with high solvent flux and exceptional dye retention performance can be achieved.
ACS APPLIED POLYMER MATERIALS
(2023)