Article
Chemistry, Physical
V. Sanchez-Alarcos, V. Recarte, D. L. R. Khanna, J. Lopez-Garcia, J. I. Perez-Landazabal
Summary: Deformation of a Ni45Mn36.7In13.3Co5 alloy was carried out by hand crushing and ball milling in both martensite and austenite states in order to study the effect of induced plastic deformation on the stability between structural phases. It was found that a significant martensite stabilization occurred, resulting in shifts of up to 100 K in the temperature of the first reverse martensitic transformation. The stabilized martensite exhibited a non-modulated tetragonal structure regardless of the degree of plastic deformation, showing better accommodation of internal stresses than the thermally induced modulated monoclinic martensite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Physics, Fluids & Plasmas
Florent Fessler, Vaibhav Sharma, Pierre Muller, Antonio Stocco
Summary: Entry of micro- or nanosized objects into cells or vesicles is a common phenomenon in various processes. In this study, the penetration of microparticles into giant unilamellar vesicles is investigated, without strong binding interactions. It is found that the particles can enter the vesicles when an external force is applied and the membrane tension is low. The role of the membrane area reservoir is identified, and a force minimum is observed when the particle size is comparable to the bendocapillary length.
Article
Polymer Science
Mengmeng Zhang, Min Ren, Yuping Zhang, Zaiyan Hou, Simeng Liu, Lianbin Zhang, Jiangping Xu, Jintao Zhu
Summary: This report proposes a method to regulate the shape and structure of block copolymer microparticles by using core-crosslinked nanoparticles and a cationic surfactant. By manipulating the electrostatic repulsive interactions, the microparticles undergo a shape transformation from striped Janus ellipsoids to onion-like microspheres. This work provides a simple strategy to control the morphology of block copolymers by manipulating the electrostatic interaction.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Optics
Alexander B. Stilgoe, Timo A. Nieminen, Halina Rubinsztein-Dunlop
Summary: The interaction between structured light beams and small particles can generate controllable rotational effects and fluid flow. This finding is significant for studying complex fluid dynamics, investigating cell mechanics, and cooling particles in optical traps.
Article
Physics, Fluids & Plasmas
K. B. Reynoso-Hernandez, P. E. Guevara-Pantoja, G. A. Caballero-Robledo
Summary: When a magnetic nanoparticle solution flows through a porous medium formed by iron microparticles, the trapping of nanoparticles is determined by the total volume occupied by the column, regardless of its packing density. This study provides insights into the competition of drag and magnetic forces in nanoparticle capture, and offers a technique to measure the columns' mass and packing density for optimization of high-gradient magnetic nanoparticle separation in environmental and biomedical applications.
Article
Chemistry, Multidisciplinary
Amit K. Tripathi, John G. Tsavalas
Summary: In this study, a simple method is demonstrated to fully transform spherical polymeric microparticles to elongated spherocylinders with an internal cavity under glassy conditions. Deforming the non-crosslinked particles for an unusually long time is critical, with larger particles being more susceptible to the shear imposed by stirring. The resulting morphology is robust and can revert to its original shape under suitable conditions, with the volume fraction of internal void modulated by particle composition.
MATERIALS HORIZONS
(2021)
Article
Biochemical Research Methods
Han Zhang, Meiying Lu, Zheng Xiong, Jing Yang, Mingyue Tan, Long Huang, Xiaojuan Zhu, Zifeng Lu, Zhongzhu Liang, Hua Liu
Summary: This study proposes a novel in situ digital projection lithography technology that enables real-time trapping and tagging of microfeatures. By integrating image recognition technology and the generation of digital masks, this technology shows promising prospects in microfluidics, single-cell analysis, and early-stage disease diagnostics.
Article
Optics
Xiaoyan Zhou, Shuxi Liu, Daomu Zhao
Summary: In this paper, we present the electromagnetic fields of vector Pearcey beams using the vector angular spectrum representation. These beams exhibit autofocusing performance and inversion effect. By applying the generalized Lorenz-Mie theory and Maxwell stress tensor approach, we derive the expansion coefficients and rigorous solution for the optical forces of different polarized beams. Additionally, we investigate the optical forces experienced by a microsphere in vector Pearcey beams, considering factors such as particle size, permittivity, and permeability. This unique curved trajectory transport of particles by vector Pearcey beams may have applications in partially blocked transport paths.
Article
Chemistry, Analytical
Alaleh Vaghef-Koodehi, Curran Dillis, Blanca H. Lapizco-Encinas
Summary: This study reports a charge-based microparticle separation technique that can achieve separation even with a small difference in particle zeta potentials of only 3.6 mV (less than 10% of the difference in previous studies). By building an accurate COMSOL Multiphysics model and experimental verification, the feasibility and reproducibility of highly similar microparticle separation were demonstrated.
ANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Paper & Wood
Kristyna Pospiskova, Gerhard J. Mohr, Jitka Prochazkova, Milan Timko, Michal Rajnak, Katarina Paulovicova, Peter Kopcansky, Giorgia Giovannini, Luciano F. Boesel, Ivo Safarik
Summary: Fluorescent and magnetic nanoparticles have been widely used for various (bio)applications, with methods for their synthesis often requiring complex modifications that result in low particle yields. This study presents a simple and scalable method for magnetic modification of cellulose-based fluorescent particles using magnetite nanoparticles. The resulting bifunctional particles maintain their pH sensitivity, optical properties, and can be manipulated by an external magnetic field, showing promise for large-scale production and potential biomedical applications.
Article
Materials Science, Multidisciplinary
Quan-Wei Cai, Da-Wei Pan, Xiao-Jie Ju, Chen Chen, Li-Ping Zhang, Shi-Hao Yang, Rui Xie, Wei Wang, Zhuang Liu, Liang-Yin Chu
Summary: In this paper, a simple microfluidic strategy is introduced for the controlled fabrication of monodisperse amphiphilic Janus microparticles. The strategy utilizes online UV curing and phase separation to produce the desired morphologies. The functionalization of the microparticles can also be easily achieved by introducing certain elements into the dispersed phase. The versatility and efficiency of this strategy make it highly applicable in various fields.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Mingzhu Liu, Jiemin Fu, Shu Yang
Summary: This study reports on the synthesis of liquid crystalline elastomer (LCE) microparticles with temperature-dependent anisotropic shapes, which can change their shapes in response to external stimuli. The Janus microdroplets, consisting of a mixture of liquid crystal monomers, oligomers, silicone oil, and an organic solvent, are transformed into LCE microparticles with diverse shapes after polymerization and solvent extraction. The choice of surfactants, concentration, and composition, as well as the weight ratio of the components, plays a crucial role in determining the final shape of the microparticles.
Article
Engineering, Chemical
Dongdong Tang, Feiwang Wang, Huixin Dai, Mengyu Lu, Zhihui Gong
Summary: The study found that the wavy-shaped separation chamber can promote irregular airflow movement and generate vortices to enhance particle dispersion. Additionally, this shape of separation chamber can effectively improve the recovery rate and separation efficiency of magnetite and high-grade particles.
MINERALS ENGINEERING
(2021)
Article
Engineering, Environmental
Aosong Wei, Jianping Li, Minjie Shan, Wenjie Lv, Jianqi Chen, Pengbo Fu, Yanping Liu, Weichun Xu, Li Dai, Hualin Wang
Summary: Separation energy consumption in industrial production accounts for 10-15% of global energy consumption. Traditional sand filters cannot be completely regenerated, limiting their efficiency. A sand filter coupling hydrocyclone (SFCH) was proposed to enhance regeneration. By combining SFCHs with particle sizes of 1-2 mm and 0.5-1 mm, the efficiency and cycle were balanced, resulting in a significant decrease in turbidity, water, and chlorine levels. The extended service life of the alumina bed in a petroleum resin plant led to substantial cost savings.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Materials Science, Ceramics
Chenchen Zhou, Jia Man, Haibo Yu, He Xia, Luming Man, Bin Qi, Jianfeng Li
Summary: The study demonstrated a method combining UV light lithography and single emulsion opaque-droplet-templated microfluidic molding to fabricate crescent-shaped ceramic microparticles. By adjusting the intensity of UV light and flow rate of fluid, the shapes of microparticles were tuned effectively. This approach has the potential to produce crescent-shaped microparticles made from different materials and has applications in microrobotics, MEMS structural materials, and biotechnology.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
Jie Zhang, Ran Zhou, Cheng Wang
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2019)
Article
Mechanics
Md Rifat Hassan, Cheng Wang
Article
Chemistry, Analytical
Christopher Sobecki, Jie Zhang, Cheng Wang
Article
Mathematics, Applied
Feng Bai, Daozhi Han, Xiaoming He, Xiaofeng Yang
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
(2020)
Article
Engineering, Multidisciplinary
Feng Bai, Yi Wang
Summary: This paper introduces a hybrid snapshot simulation methodology that alternates between full-order models and local ROMs to accelerate high-quality data generation for proper orthogonal decomposition and reduced-order model development. The approach utilizes on-the-fly model switching and incremental singular value decomposition to achieve excellent accuracy and efficiency, demonstrating feasibility for robust snapshot data generation and ROM development.
INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS
(2021)
Article
Chemistry, Inorganic & Nuclear
Christopher Sobecki, Jie Zhang, Cheng Wang
Summary: The study focused on analyzing the dynamics of a pair of anisotropic particles in a Newtonian fluid, considering different configurations and the influence of center-to-center distance, magnetic field strength, initial particle orientation, and orientation. It was found that the formation of chains by the particles depended on the interplay between viscous and magnetic forces, with critical orientation values determining attraction or repulsion under a uniform magnetic field.
Article
Chemistry, Multidisciplinary
Md Rifat Hassan, Jie Zhang, Cheng Wang
Summary: Magnetic digital microfluidics, utilizing magnetic forces for droplet manipulation, shows unique dynamic behaviors of sessile droplets on hydrophobic surfaces. The study reveals that on superhydrophobic surfaces, nonuniform magnetic fields induce droplets to merge and jump off after coalescence, while on less hydrophobic surfaces, droplets still coalesce but do not exhibit upward flight post-merger.
Article
Mechanics
Jie Zhang, Md Rifat Hassan, Cheng Wang
Summary: Numerical investigation was conducted on the particle-particle interaction and relative motion of a pair of equal-sized magnetic particles in simple shear and plane Poiseuille flows. The direction and strength of the magnetic field were found to have significant effects on the dynamics of the particles, impacting their trajectories and relative motion. This study provides insights into understanding the mechanisms of particle-particle interaction in magnetorheological fluids under a uniform magnetic field.
Article
Chemistry, Multidisciplinary
Md Rifat Hassan, Cheng Wang
Summary: The magnetic field plays an important role in controlling the spreading dynamics of impinging droplets on hydrophilic surfaces, resulting in the formation of a steady-state shape and various changes during the spreading process. Additionally, the viscosity of the droplet and the effect of the magnetic field can influence the shape and motion of the droplet.
Article
Computer Science, Interdisciplinary Applications
Feng Bai, Yi Wang
Summary: The purpose of this paper is to establish an intelligent framework to generate data representatives in snapshot simulation, in order to construct an online reduced-order model based on the generated data information. This framework can greatly reduce computational time in snapshot simulation and accelerate computational efficiency in real-time computation of reduced-order modeling.
ENGINEERING COMPUTATIONS
(2022)
Article
Computer Science, Interdisciplinary Applications
Feng Bai, Yi Wang
Summary: This paper presents a method to embed the Gauss-Newton approximated tensor (GNAT) reduced order model (ROM) into the hybrid snapshot simulation to enhance generation speed and representation of snapshot data for constructing GNAT ROMs. The proposed method accelerates the snapshot simulation by switching among the full order model (FOM), the local ROM based on Petrov-Galerkin projection (ROM-PG), and the local ROM based on GNAT (ROM-GNAT) on-the-fly. Compared with traditional approaches, the proposed method continuously updates the proper orthogonal decomposition (POD) modes of the residual and the column-reduced Jacobian in the local ROM-GNATs using the incremental singular value decomposition (iSVD) of the snapshot data generated by both the FOM and the local ROM-PG. The effectiveness of the method is demonstrated on the finite volume discretization of the 2D Burgers equation and shows improved simulation speed and reduced numerical error compared to traditional methods.
MATHEMATICS AND COMPUTERS IN SIMULATION
(2022)
Article
Computer Science, Interdisciplinary Applications
Feng Bai
Summary: This paper proposes an efficient and economic framework for generating reduced order models (ROMs) with Petrov-Galerkin projection, which significantly improves the speed and representation of snapshot data in Semilinear-PDEs. The framework divides the snapshot simulation into multiple temporal intervals, utilizing both full order models (FOM) and local ROMs based on Petrov-Galerkin projection (ROM-PG). The simulation dynamically determines the model type and continuously updates the subspace during training.
JOURNAL OF COMPUTATIONAL SCIENCE
(2023)
Article
Multidisciplinary Sciences
Feng Bai, Yi Wang
SN APPLIED SCIENCES
(2020)
Article
Physics, Fluids & Plasmas
Md Rifat Hassan, Cheng Wang
Article
Chemistry, Physical
Jie Zhang, Md. Rifat Hassan, Bhargav Rallabandi, Cheng Wang
