Article
Biochemical Research Methods
Roozbeh Abedini-Nassab, Sajjad Bahrami
Summary: This study introduces a novel microfluidic platform for precise manipulation of single particles and magnetized cells, achieving simultaneous transport of multiple particles and demonstrating a curved transportation method. The technology has the potential for applications in the fields of lab-on-a-chip, single-cell biology, and drug screening.
Article
Chemistry, Multidisciplinary
Hyeonseol Kim, Byeonghwa Lim, Jonghwan Yoon, Keonmok Kim, Sri Ramulu Torati, CheolGi Kim
Summary: A novel solution for disaggregation and controlled manipulation of magnetic beads is developed by using a magnetophoretic decoupler and a rotating magnetic field, allowing for enhanced functionality of lab on a chip and magnetic tweezers platforms for biological assays, intercellular interactions, and magnetic biochip systems.
Article
Chemistry, Multidisciplinary
Andrey A. Kuznetsov, Ivan A. Podlesnykh
Summary: The study investigates the equilibrium concentration distribution of magnetic nanoparticles in a nonuniform magnetic field, obtaining an exact solution for dilute monodisperse suspensions and testing its applicability in a broad range of amperage values. The solution is also generalized for polydisperse suspensions, revealing that particle size distribution in such systems strongly depends on the distance from the wire and generally does not coincide with the original distribution of a uniform suspension.
Article
Biophysics
Ying Ding, Jing Yuan, Lei Wang, Nana Jin, Siyuan Wang, Yanbin Li, Jianhan Lin
Summary: A new microfluidic magnetophoretic biosensor was developed using platinum modified immunomagnetic nanobeads for continuous-flow isolation of magnetic bacteria from free nanobeads, combined with nanozyme signal amplification for colorimetric biosensing of Salmonella. The biosensor could detect Salmonella as low as 41 CFU/mL within 40 minutes.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Engineering, Multidisciplinary
Alejandro Rodriguez-Barroso, Guillermo Camacho, Oscar Martinez-Cano, Jose Rafael Morillas, Juan de Vicente
Summary: In this study, we demonstrate the control of magnetophoretic force magnitude and homogeneity by placing appropriate magnetic materials between the electromagnetic inductors and the sample. Through optimization, large and homogeneous magnetophoretic forces can be generated over a wide area for multiplexed microrheology tests.
Article
Nanoscience & Nanotechnology
Dae-Young Jeon
Summary: This paper demonstrates the performance of a tri-gate JLT with an electrostatically highly doped channel through numerical simulation, showing the potential of overcoming short-channel effects for sub-3-nm technology nodes.
Article
Materials Science, Multidisciplinary
Roozbeh Abedini-Nassab, Sina Ahmadiasl, Yaping Dan
Summary: In recent years, lab-on-a-chip devices have gained attention in the research community due to their advantages in bioapplications. Manipulating a group of particles and cells at single-particle resolution is a key challenge in this field. Although different techniques have been proposed, they lack the controllability and scalability required for most bioapplications. A new design equipped with a tuning gate electrode has been introduced to address this issue. The design transports particles in a triaxial magnetic field, reducing attraction force and inhibiting particle cluster formation. Experimental results agree well with simulation predictions, making this design a promising candidate for fundamental applications in single-cell biology and medicine.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Computer Science, Information Systems
Vinitha Ramdas, R. Sethunadh
Summary: Magnetism is a widespread phenomenon with various potential applications. This paper presents the design and development of a Tri-axis Helmholtz coil field simulator based on Model Reference Adaptive Controller (MRAC), which provides a highly accurate and controlled magnetic field for aerospace magnetic sensor calibration.
Article
Astronomy & Astrophysics
Alexander Kolbin, N. Borisov, N. A. Serebriakova, V. V. Shimansky, N. A. Katysheva, M. M. Gabdeev, S. Yu Shugarov
Summary: This study analyzes spectroscopic and photometric observations of the eclipsing polar BS Tri, revealing the presence of cyclotron harmonics and Zeeman components in the system. The masses, orbital inclination, and magnetic field strength of the accretion spot are refined, and the position and orientation of the magnetic dipole are estimated through modeling the light curves. The Doppler maps show the trajectory of the accretion stream and confirm the position of the accretion spot.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Engineering, Multidisciplinary
B. M. Sikora, A. K. Pilat
Summary: This article presents a novel design of a six-pole axial active magnetic bearing and develops an analytical magnetic bearing model. Through experimental research and numerical simulation, the accuracy of the model is demonstrated, and the practical application of the magnetic field distribution is illustrated.
APPLIED MATHEMATICAL MODELLING
(2022)
Article
Mechanics
M. Gautam, S. Sivakumar, A. Barnett, S. Barbour, S. L. Ogin, P. Potluri
Summary: The research found that bi-axial and tri-axial braided composites exhibit different characteristics in stress-strain curves, with varying strengths and deformation behaviors. Increasing braid angle decreases strength and energy absorption, but increases strain to failure; inserting axial tows increases strength but decreases energy absorption and strain to failure.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Electrical & Electronic
Xianglin Li, Shengwei Liu, Qiusheng Wang, Bo Yan, Zhongnian Huang, Kai Wang
Summary: This article proposes a stator-excitation axial-flux magnetic gear (SEAMG) that improves the mechanical reliability and processing difficulty of existing coaxial rotor-excitation MGs. By placing the permanent magnets (PMs) on the stator, the SEAMG enhances mechanical robustness and operational reliability. The axial-flux pattern allows for easy fixation of the stator and convenient access to high- and low-speed rotor shafts. The SEAMG's operation principle, design considerations, and prototype evaluation are explained.
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
(2023)
Article
Materials Science, Multidisciplinary
Donia Saadi, Cigdem Yumusak, Ivana Zrinski, Andrei Ionut Mardare, Samir Romdhane, Niyazi Serdar Sariciftci, Mihai Irimia-Vladu, Markus Clark Scharber
Summary: This study investigates the magnetic field effect on the source-drain current of organic field-effect transistors using semiconductor layers made of H-bonded pigments. The results show that all devices experience a reduction in source-drain current when subjected to an external magnetic field, regardless of the applied magnetic field's direction. The observed increase in magnetoresistance is attributed to the semiconductor or the semiconductor-dielectric interface, unaffected by gate electrodes or deposition procedure. The formation of bipolarons is proposed as the cause for the magnetic field effect, as all prepared devices exhibit single charge carrier nature. These findings demonstrate the similar behavior of hydrogen-bonded semiconductors and classical van der Waals-bonded fully conjugated semiconductors.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Physics, Applied
Han Xu, Shaoshuai Guo, Hao Zhang, Kai Xie
Summary: In this study, the impact of an external axial magnetic field on helium plasma jet and plasma-activated water was investigated. It was found that the external magnetic field significantly enhances the brightness and length of the ionization wave of the plasma jet, while also increasing the concentration of reactive oxygen species in water. Additionally, the vitality of melanoma cells decreases under the influence of the magnetic field. The findings suggest that the external magnetic field could be beneficial in improving the effectiveness of plasma jet applications.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Shabbir Ahmad, Hidemasa Takana, Kashif Ali, Yasmeen Akhtar, Ahmed M. Hassan, Adham E. Ragab
Summary: Tri-hybrid nanofluid (THNF) achieves higher heat transfer rate by combining three different nanoparticles. It has diverse properties and potential applications in various fields. The study explores the interaction of Lorentz force with THNF nanoparticles and reveals significant effects on the flow field.
NANOTECHNOLOGY REVIEWS
(2023)
Article
Engineering, Electrical & Electronic
Roozbeh Abedini-Nassab
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
(2019)
Article
Nanoscience & Nanotechnology
Roozbeh Abedini-Nassab, Reza Shourabi
Article
Engineering, Electrical & Electronic
Roozbeh Abedini-Nassab, Naeemeh Mahdaviyan
IEEE SENSORS JOURNAL
(2020)
Article
Biophysics
Roozbeh Abedini-Nassab
JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY
(2020)
Review
Nanoscience & Nanotechnology
Roozbeh Abedini-Nassab, Seyed Mohammadhossein Emami, Arshia Naeimi Nowghabi
Summary: This article reviews the applications of nanotechnology in the field of acoustics, specifically focusing on the use of nanoparticles, nanorods, nanotubes, and nanofilms in acoustic devices. The article covers various applications such as ultrasonic transducers, biosensors, imaging tools, nanomotors, and particle sorters, and discusses their significance in fundamental disciplines like medicine.
RECENT PATENTS ON NANOTECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Madhav Mantri, Gaetano J. Scuderi, Roozbeh Abedini-Nassab, Michael F. Z. Wang, David McKellar, Hao Shi, Benjamin Grodner, Jonathan T. Butcher, Iwijn De Vlaminck
Summary: By utilizing single-cell and spatial transcriptomics in chicken hearts, the authors conducted a census of cellular interactions from early to late four-chambered heart stage, identifying a distinct epicardial-mesenchymal cell population with a migratory phenotype.
NATURE COMMUNICATIONS
(2021)
Review
Chemistry, Analytical
Roozbeh Abedini-Nassab, Mahrad Pouryosef Miandoab, Merivan Sasmaz
Summary: The combination of magnetic nanoparticles with microfluidic chips has unique applications in the biomedical field, including synthesizing, manipulating, and detecting nanoparticles, as well as labeling, sorting, and detecting bioparticles.
Article
Biochemical Research Methods
Roozbeh Abedini-Nassab, Xianting Ding, Haiyang Xie
Summary: The use of magnetic micro- and nanoparticles in medicine and biology is expanding, with one important example being the transport of these particles in lab-on-a-chip systems. This study introduces a novel magnetometer using magnetic micro-disks to evaluate the magnetic susceptibility of numerous individual particles simultaneously. The method has various crucial applications, including magnetic characterization of beads and living cells, determining magnetization rate of cells, evaluating degradation rate of nanoparticles in cells, detecting target cells in samples, and separating particles based on size and magnetic susceptibility.
Review
Nanoscience & Nanotechnology
Roozbeh Abedini-Nassab, Naeemeh Mahdaviyan
Summary: SARS-CoV-2, one of the seven known coronaviruses infecting humans, has caused a global epidemic. The development of detection, therapeutic, and prevention strategies for COVID-19 is crucial for combating the pandemic.
RECENT PATENTS ON NANOTECHNOLOGY
(2021)
Article
Physics, Applied
Roozbeh Abedini-Nassab
Summary: Magnetometamaterials, inspired by electric materials, can transport magnetic particles and their transport behavior is similar to electron transport in periodic lattices. The transport rate of magnetic particles can be tuned by adjusting the external magnetic field. Two-dimensional magnetometamaterials can transport particles in arbitrary paths under appropriate conditions.
PHYSICAL REVIEW APPLIED
(2022)
Article
Nanoscience & Nanotechnology
Roozbeh Abedini-Nassab, Jake Wirfel, Bahram Talebjedi, Nishat Tasnim, Mina Hoorfar
Summary: In this study, we investigate the dielectrophoretic force on spherical colloidal particles exposed to an interdigitated electrode array in a microfluidic environment using theory, simulation, and experiment. Our findings demonstrate that theoretical predictions align with experimental results, and a frequency-response function for negative-dielectrophoresis instruments is derived using an equivalent electrical circuit model. Additionally, the analysis reveals that electrode width and array spacing play a crucial role in the magnitude and distance dependence of the negative dielectrophoresis force.
MICROFLUIDICS AND NANOFLUIDICS
(2022)
Article
Biochemical Research Methods
Roozbeh Abedini-Nassab, Zahra Aldaghi, Yaping Dan
Summary: This study focuses on the precise positioning of magnetic particles and magnetized cells in a microfluidic environment. By optimizing the geometry of capacitors, a magnetic particle transport platform was designed and demonstrated, showing efficient storage and transportation of particles and cells.
Article
Biophysics
Mahrad Pouryosef Miandoab, Mohammed N. N. Ashtiani, Roozbeh Abedini-Nassab, Seyed Mohammad Reza Akrami
Summary: In this study, a precise detection method using center of pressure data obtained from patients is proposed. The introduced automatic detection pipeline is based on the grey wolf and BAT algorithms. Statistical features and data from healthy individuals and patients are processed using the grey wolf binary algorithm, and the results are inputted into the binary bat algorithm for feature selection and improved accuracy. The groups are then classified using a four-layer neural network. The proposed method offers fantastic accuracy in high-speed processing large data and classifying high-dimensional knee osteoarthritis center of pressure data with appropriate precision, recall, specificity, and F1 values. It has direct applications in knee osteoarthritis diagnostics in clinics.
JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY
(2023)
Review
Chemistry, Analytical
Roozbeh Abedini-Nassab, Negar Sadeghidelouei, C. Wyatt Shields
Summary: Lab-on-a-chip tools are crucial in advancing modern biology and medicine, particularly in the precise transport of single particles and cells for analysis. Magnetophoretic circuits have emerged as a unique technology for manipulating individual bioparticles in a parallel and controlled manner. This review discusses theoretical considerations, provides a tutorial on operating magnetophoretic devices, compares their utility with other microchip-based platforms, and explores their potential in addressing unmet needs in single-cell biology and medicine.
ANALYTICA CHIMICA ACTA
(2023)
Article
Biochemical Research Methods
Roozbeh Abedini-Nassab, Sajjad Bahrami
Summary: This study introduces a novel microfluidic platform for precise manipulation of single particles and magnetized cells, achieving simultaneous transport of multiple particles and demonstrating a curved transportation method. The technology has the potential for applications in the fields of lab-on-a-chip, single-cell biology, and drug screening.