Article
Astronomy & Astrophysics
Yan Yang, Francesco Pecora, William H. H. Matthaeus, Sohom Roy, Manuel Enrique Cuesta, Alexandros Chasapis, Tulasi Parashar, Riddhi Bandyopadhyay, D. J. Gershman, B. L. Giles, J. L. Burch
Summary: This study analyzes the distribution of energy in weakly collisional plasmas, focusing on the partitioning between different species and energy channels. The fractions of isotropic compressive, gyrotropic, and nongyrotropic heating for each species are quantified through the analysis of pressure-strain interaction. Comparisons are made between kinetic turbulence simulations and Magnetospheric Multiscale Mission observation data. The results show that compressive heating is stronger than incompressive heating in the magnetosheath, while incompressive heating is stronger in kinetic plasma turbulence simulations. Gyrotropic heating dominates for electrons, while nongyrotropic heating is enhanced for protons in both simulations and observations. The impact of plasma beta on heating variations is also discussed, indicating that increasing beta leads to more heating for protons.
ASTROPHYSICAL JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Gomathi Mahadevan, Qiu Ruifan, Yap Hui Hian Jane, Suresh Valiyaveettil
Summary: This study investigated the role of plastic nanoparticles in the biomineralization of CaCO3, finding that high concentrations of PMMA-NPs induce calcite crystal nucleation. Microplastic particles were also found to have a role in CaCO3 nucleation.
Article
Biochemistry & Molecular Biology
Varvara Labis, Ernest Bazikyan, Denis Demin, Irina Dyachkova, Denis Zolotov, Alexey Volkov, Victor Asadchikov, Olga Zhigalina, Dmitry Khmelenin, Daria Kuptsova, Svetlana Petrichuk, Elena Semikina, Svetlana Sizova, Vladimir Oleinikov, Sergey Khaidukov, Ivan Kozlov
Summary: The role of metallic nano- and microparticles in inflammation was investigated by examining soft tissue biopsy specimens from bone bed and supernatants from orthopedic structures and dental implants. X-ray microtomography, X-ray fluorescence analysis, and scanning electron microscopy were used for investigations. The study revealed the presence of nano- and microparticles in the tissues, suggesting their involvement in the inflammatory process.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Analytical
Lijie Ren, Zhigang Zhang, Xinyuan Zhang, Zhibo Kong, Shaowei Li, Qinjian Zhao
Summary: By utilizing a fluorescence imaging-based high content analysis, this study analyzed the interactions of protein molecules on particle surfaces, demonstrating the feasibility of analyzing subtle conformational changes in antigen epitopes. The method is highly amenable for automation and is an ideal choice for formulation development and stability testing of products.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2021)
Article
Astronomy & Astrophysics
S. Roy, R. Bandyopadhyay, Y. Yang, T. N. Parashar, W. H. Matthaeus, S. Adhikari, V. Roytershteyn, A. Chasapis, Hui Li, D. J. Gershman, B. L. Giles, J. L. Burch
Summary: Despite decades of study, a complete understanding of energy transfer in turbulent plasmas remains elusive. This study demonstrates the connection between fluid-scale energy transfer and kinetic-scale dissipation using simulations and observations, and proposes a phenomenology based on proton cyclotron time and plasma beta.
ASTROPHYSICAL JOURNAL
(2022)
Article
Polymer Science
Jiazhong Xu, Yunfei Gu, Tianyu Fu, Xiaobing Zhang, Hao Zhang
Summary: Based on electromagnetic induction heating method, this study investigates the heating and curing of Carbon Fiber Reinforced Polymer (CFRP), which has the advantages of high energy utilization and no pollution. An electromagnetic heating finite element analysis model for CFRP circular tubes was established to analyze the temperature field influenced by the material weaving structure and mold material. Experimental results show that the temperature field changes with the CFRP structure when the glass fiber-reinforced plastic mold is heated, and the more fiber cross points, the more uniform the temperature field. The accuracy of the finite element model was verified through experiments. The aim of this research is to provide theoretical guidance for actual industrial production.
Article
Chemistry, Multidisciplinary
Tobias Nitschke, Joakim Stenhammar, Raphael Wittkowski
Summary: Targeted drug delivery is one of the most important potential applications of motile nano- and microdevices. This article proposes a reliable and biocompatible method for guiding a large number of nanoscale and microscale particles to a designated target using a combination of acoustic and magnetic fields. The proposed method works without the need for precise particle positioning and can accommodate arbitrary initial particle distributions, making it a promising approach for targeted drug delivery in nanomedicine.
NANOSCALE ADVANCES
(2022)
Article
Construction & Building Technology
Qingtao Li, Minghua Wang, Hufei Sun, Guangyun Yu
Summary: The study found that concrete will expand and generate thermal stress when heated at high temperatures, leading to cracks that endanger the safety of the concrete. The linear expansion rate of concrete gradually increases with temperature in the range of 100-800 degrees Celsius, reaching a maximum value of 1.336%. The heating rate has a significant impact on the expansion of concrete at temperatures of 500-800 degrees Celsius.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Acoustics
Ndifreke Usen, Si Amar Dahoumane, Mamadi Diop, Xavier Banquy, Daria C. Boffito
Summary: Au nano- and microparticles were successfully synthesized using alpha-D-glucose as the reducer and stabilizer under 20 kHz ultrasound irradiation. The pH of the reaction mixture played a critical role in determining the size of the particles, with low pH producing nanoparticles and high pH yielding microparticles. The study also revealed that continuous sonication reduced larger amounts of the Au precursor compared to intermittent mode, highlighting the importance of experimental and ultrasound parameters in controlling the features of the Au particles.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Physics, Fluids & Plasmas
Y. Yamamoto, S. Murakami, C. C. Chang, H. Takahashi, K. Ida, M. Yoshinuma, W. H. Ko
Summary: The study investigates the toroidal force related to ECH in LHD plasmas and finds that the force generated by ECH is comparable to that generated by NBI heating. The experimentally observed directions of the forces are consistent with the calculated results.
PHYSICS OF PLASMAS
(2021)
Article
Physics, Multidisciplinary
V. G. Kiptily, R. Dumont, M. Fitzgerald, D. Keeling, S. E. Sharapov, M. Poradzinski, Z. Stancar, P. J. Bonofiglo, E. Delabie, Z. Ghani, V. Goloborodko, S. Menmuir, E. Kowalska-Strzeciwilk, M. Podesta, H. Sun, D. M. Taylor, J. Bernardo, I. S. Carvalho, D. Douai, J. Garcia, M. Lennholm, C. F. Maggi, J. Mailloux, F. Rimini, P. Siren
Summary: The heating of magnetically confined fusion machines by fusion-born alpha particles is a subject of high priority for research. Recent experiments have observed self-heating of thermonuclear fusion plasma by alpha particles, achieved by neutral beam injection as the only external heating source and then termination of heating at peak performance.
PHYSICAL REVIEW LETTERS
(2023)
Review
Polymer Science
Dong-Jin Lim
Summary: Methylene blue (MB) has been utilized in the textile industry and for pharmacological purposes. It has gained attention for its potential as a safe photosensitizer in photodynamic therapy (PDT), showing both anticancer and antibacterial activity. Challenges in creating MB-embedded nanoparticles or microparticles may affect the clinical efficacy of PDT.
Article
Chemistry, Physical
M. A. Al-Muzaiqer, N. A. Ivanova, V. M. Fliagin, P. Lebedev-Stepanov
Summary: This study proposes a method for manipulating microparticles in volatile liquid layers by controlling Marangoni flows through changing the temperature gradient sign. The method is applicable for particles with various physicochemical properties and shapes, and is simple, flexible, and can be used to manipulate single microparticles or large groups of particles.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Engineering, Environmental
Thea L. Read, Casey L. Doolette, Nicholas R. Howell, Peter M. Kopittke, Tom Cresswell, Enzo Lombi
Summary: The study investigated the behavior of different forms of zinc applied to wheat leaves and found that the form and amount of absorbed zinc affected its translocation within the plant. Foliar-applied zinc fertilizers can impact the absorption and translocation of zinc in wheat plants.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Polymer Science
Imperio Anel Perales-Martinez, Luis Manuel Palacios-Pineda, Alex Elias-Zuniga, Daniel Olvera-Trejo, Karina Del Angel-Sanchez, Isidro Cruz-Cruz, Claudia Angelica Ramirez-Herrera, Oscar Martinez-Romero
Summary: This paper discusses the creation of a hybrid magnetorheological elastomer that combines nano- and microparticles. The study found that the addition of nanoparticles enhanced the stiffness of the composite materials, with minimal effects on overall strength. Additionally, the presence of nanoparticles increased the magnetic response of the composite materials.