Article
Chemistry, Physical
Hiroyuki Ohshima
Summary: Analytic expressions for the electrophoretic mobility of weakly charged spherical soft particles in a polymer gel medium have been derived, showing excellent agreement with numerical results. The expressions reproduce correct limiting cases and previously derived approximate expressions for gel electrophoresis of soft particles.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Biophysics
Getulio P. Oliveira-Jr, Raquel H. Barbosa, Lauren Thompson, Brandy Pinckney, Moriah Murphy-Thornley, Shulin Lu, Jennifer Jones, Clinton H. Hansen, John Tigges, Wesley P. Wong, Ionita C. Ghiran
Summary: The method based on delayed electrophoretic mobility offers sensitive detection of miRNAs-MB hybridization, with single nucleotide specificity, making it a rapid and affordable approach for quantification.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Mechanics
Ali Shafiei Souderjani, Mostafa Bakouei, Mohammad Hassan Saidi, Mojtaba Taghipoor
Summary: The electrophoretic motion of hydrophobic particles in solid-state nanopores is numerically investigated. The Poisson, Stokes, and Nernst-Planck equations are simultaneously solved using the Newton-Raphson algorithm. The hydrophobic surface characteristics are described using the Navier-slip boundary condition with a wide range of slip lengths. The study examines the effects of electric field intensity, electrolyte concentration, and particle size on electrophoretic velocity, and manipulates the nanopore's size and surface charge density to separate hydrophobic and hydrophilic particles based on their slip lengths. The resistive pulse properties of particles with different slip lengths are also studied, showing potential application for resistive pulse sensing to determine particle slip length.
Article
Chemistry, Physical
Pavel Popovetskiy, Alexei Kasyanov, Eugenie Maximovskiy, Pavel Plyusnin
Summary: Linear electrophoresis in silver organosols was studied in this work using reverse micelles of the nonionic surfactant Ecosurf SA4. The electrokinetic phenomena in media with low dielectric permittivity were described for the first time for this type of surfactant. The composition analysis of the surfactant revealed weakly bound chlorine, suggesting a mechanism for the stabilization of charged particles similar to solvation by nonpolar solvents like chloroform. The dependence of the electrophoretic potential of silver nanoparticles on surfactant concentration was investigated, and electrophoretic concentration with high extraction efficiency was achieved.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Biochemical Research Methods
Behnaz Abbasgholi N. Asbaghi, Ahmed Alsadig, Humberto Cabrera
Summary: The online thermal lens microscopy coupled with gel electrophoresis system was developed for separating and detecting nanosized materials. By optimizing parameters, the system demonstrated rapid and effective separation capabilities.
JOURNAL OF CHROMATOGRAPHY A
(2021)
Review
Biotechnology & Applied Microbiology
Amadeo Sena-Torralba, Yulieth D. Banguera-Ordonez, Laia Mira-Pascual, Angel Maquieira, Sergi Morais
Summary: To decentralize health care, the development of point-of-care (PoC) assays has gained attention. The lateral flow immunoassay (LFIA) is seen as a promising bioanalytical method due to its low cost and single-step detection process. However, its limited sensitivity and inability to detect disease biomarkers at clinically relevant levels have limited its application. This review explores the potential of merging different electrokinetic phenomena into paper-based assays to enhance their analytical performance.
TRENDS IN BIOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Pavel Sergeevich Popovetskiy, Alexei Nikitich Kolodin, Eugenie Anatolievich Maximovskiy, Pavel Eugenievich Plyusnin, Ilya Victorovich Korolkov, Eugeny Yurievich Gerasimov
Summary: This study demonstrated the synthesis of spherical silver nanoparticles with a diameter of 9.4 nm stabilized by a non-ionic surfactant, and their high electrokinetic potential allowing for the concentration of silver organosols through non-aqueous electrophoresis. Mirror-like silver films with high silver content (up to 96%) and varying thicknesses were successfully produced by heat treatment of the concentrates at specific temperatures.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Analytical
Nobuyuki Futai, Yuto Fukazawa, Tomohiro Kashiwagi, Shogo Tamaki, Riho Sakai, Catherine A. Hogan, Kanagavel Murugesan, Ashwin Ramachandran, Niaz Banaei, Juan G. Santiago
Summary: This study presents a method for the high-efficiency separation and extraction of short cfDNA fragments, using a millimeter-scale fluidic device to extract the fragments into solid agarose gel slabs from liquid human plasma samples. The method demonstrates high sensitivity in cfDNA detection.
ANALYTICA CHIMICA ACTA
(2022)
Correction
Biochemical Research Methods
M. Hannah Choi, Liu Hong, Leonardo P. Chamorro, Boyd Edwards, Aaron T. Timperman
Summary: This article introduces a method for measuring the electrophoretic mobility and size of single particles using microfluidic transverse AC electrophoresis (TrACE). It corrects the errors in previous research and provides modifications.
Article
Biochemical Research Methods
M. Hannah Choi, Liu Hong, Leonardo P. Chamorro, Boyd Edwards, Aaron T. Timperman
Summary: The ability to measure the charge and size of single particles is crucial for understanding particle adhesion and interaction with the environment. The new technique called TrACE combines particle tracking velocimetry (PTV) and AC electrophoresis to accurately measure the charge and size of particles. This technique shows promise in studying the physical properties of cells and has potential applications in various fields.
Article
Chemistry, Physical
Matthaus Barasinski, Julia Hilbig, Stefan Neumann, David Rafaja, Georg Garnweitner
Summary: This study investigated the migration velocities of spherical and rod-shaped gold nanoparticles under varied gel mesh sizes through gel electrophoresis experiments. The results showed that the shape of nanoparticles and the size of gel mesh had a significant impact on their migration velocities.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Polymer Science
Hiroyuki Ohshima
Summary: This study develops a general theory for the time-dependent transient electrophoresis of a weakly charged spherical colloidal particle in a polymer gel medium. The Laplace transform of the transient electrophoretic mobility is derived by considering the hydrodynamic interaction between the particle and the gel medium based on the Brinkman-Debye-Bueche model. The theory covers both transient gel electrophoresis and transient free-solution electrophoresis, with the relaxation time for the former being shorter and decreasing as the Brinkman screening length decreases.
Article
Biochemical Research Methods
Ingrid Amer Cid, Yera Ye Ussembayev, Kristiaan Neyts, Filip Strubbe
Summary: Accurate characterization of monodisperse and polydisperse samples is achieved by measuring the electrophoretic mobility on a particle-to-particle basis while suppressing electroosmosis. This method allows for precise measurements and analysis of particle behavior in various samples, demonstrating potential applications in a wide range of fields.
Article
Biochemical Research Methods
Sirsendu Sekhar Barman, Somnath Bhattacharyya, Prashanta Dutta
Summary: The electrokinetic transport of an uncharged nonconducting microsized liquid droplet in a charged hydrogel medium is analyzed, showing a strong recirculation of liquid within the droplet. The velocity of the droplet is found to depend heavily on its size and various factors such as dielectric permittivity, bulk ionic concentration, and immobile charge density. The study considers the dielectric polarization and surface conduction effects in the presence of a charged gel medium.
Article
Biochemistry & Molecular Biology
Hiroyuki Ohshima
Summary: This study derives a general expression for the Laplace transform of the time-dependent transient electrophoretic mobility of a spherical colloidal particle when a step electric field is applied. It also presents an approximation method to avoid numerical calculations and derive an approximate analytic mobility expression for weakly charged particles. The results obtained through this method show excellent agreement with the exact numerical results.
Article
Chemistry, Multidisciplinary
Reghan J. Hill, Fei Li, Tennyson L. Doane, Clemens Burda
Article
Chemistry, Physical
Stuart Allison, Fei Li, Melinda Le
JOURNAL OF PHYSICAL CHEMISTRY B
(2016)
Article
Energy & Fuels
Jiayuan Wang, Fei Li, Richard Lakerveld
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2018)
Article
Chemistry, Multidisciplinary
Fei Li, Richard Lakerveld
CRYSTAL GROWTH & DESIGN
(2018)
Article
Chemistry, Multidisciplinary
Haijiao Lu, Jingkang Wang, Fei Li, Xin Huang, Beiqian Tian, Hongxun Hao
Article
Engineering, Chemical
Reghan J. Hill, Fei Li
CHEMICAL ENGINEERING SCIENCE
(2013)
Article
Chemistry, Physical
Qing Shen, Mebrahtu Mezgebe, Fei Li, Jin-Qiao Dong
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2011)
Article
Chemistry, Physical
Fei Li, Reghan J. Hill
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2013)
Article
Chemistry, Physical
Stuart A. Allison, Fei Li, Reghan J. Hill
JOURNAL OF PHYSICAL CHEMISTRY B
(2014)
Article
Polymer Science
Zhongguang Yang, Songzi Kou, Xi Wei, Fengjie Zhang, Fei Li, Xiao-Wei Wang, Yuan Lin, Chao Wan, Wen-Bin Zhang, Fei Sun
Article
Chemistry, Multidisciplinary
Fei Li, Richard Lakerveld
CRYSTAL GROWTH & DESIGN
(2017)
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)