Physical review. E, Journal Year: 2025, Volume and Issue: 111(4)
Published: April 8, 2025
Language: Английский
Nanomaterials, Journal Year: 2022, Volume and Issue: 12(9), P. 1488 - 1488
Published: April 27, 2022
A ferrofluid based on Fe67.2Cr12.5Nb0.3B20 magnetic particles with a low Curie temperature was prepared. The particles, most of which had dimensions under 60 nm, were dispersed in calcium gluconate solution, leading to stable ferrofluid. obtained magnetization 0.04 0.17 emu/cm3, depending the particles' concentration, and viscosity that increased nonlinearly applied field. appeared be biocompatible, as it showed cytotoxicity, even at high concentrations for long intervals co-incubation human cells, demonstrating good potential used cancer therapies through hyperthermia well magneto-mechanical actuation.
Language: Английский
Citations
19
Iranian Journal of Science and Technology Transactions of Mechanical Engineering, Journal Year: 2023, Volume and Issue: 48(1), P. 177 - 192
Published: May 9, 2023
Language: Английский
Citations
11
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(18)
Published: Jan. 24, 2024
Abstract Endowing robots with reversible phase transition ability, especially between elastomer and fluid states, can significantly broaden their functionality applicability. Limited attempts have been made to realize the elastomer–fluid transition. Existing materials in robotics over‐hard (≈4 GPa) or over‐soft kPa) stiffness solid which should be further investigated perform more compliant motions. To address these challenges, a mechanism enabled by magnetically induced hot melt (MIMMs) is presented. The principle explained material characterizations are conducted. MIMMs‐based metamorphosic endow self‐metamorphosing abilities, such as self‐healing, spatial reshaping, self‐division/assembly, additive manufacturability. When interacting external environments, multifunctional collaborations for structure repairs, swimming symbiosis objects, flowing through narrow terrain transiting fluid, working elastomeric structures stiffness‐variable soft actuators. proposed transitions open new path generate flexible motions, thereby addressing cross‐phase transformation challenges that face.
Language: Английский
Citations
4
Journal of the Optical Society of America B, Journal Year: 2024, Volume and Issue: 41(4), P. 998 - 998
Published: Feb. 8, 2024
To improve the detection performance of fiber optic magnetic field sensors a new photonic crystal (PCF) based on surface plasmon resonance (SPR) was designed and investigated. The sensor uses an elliptical channel, modal transmission characteristics sensing this are analyzed using full vector finite element method (FVFEM). In addition, effect channel accuracy at different curvatures Compared with previous optical (MF) sensors, meets requirements both refractive index (RI) MF measurements, sensitivity, RI amplitude sensitivity (AS) reach 0.739 nm/Oe, 12043.8 nm/RIU, 754.88RIU −1 , respectively. expands application range reduces cost. It has great potential for in complex environments.
Language: Английский
Citations
4
Journal of Materials Science Materials in Electronics, Journal Year: 2024, Volume and Issue: 35(6)
Published: Feb. 1, 2024
Language: Английский
Citations
4
International Journal of Numerical Methods for Heat & Fluid Flow, Journal Year: 2024, Volume and Issue: 34(6), P. 2321 - 2344
Published: May 9, 2024
Purpose Ferrofluids are aqueous or non-aqueous solutions with colloidal particles of iron oxide nanoparticles high magnetic characteristics. Their characteristics enable them to be controlled and manipulated when ferrofluids exposed fields. This study aims inspect the features unsteady stagnation point flow (SPF) heat flux from surface by incorporating ferromagnetic through a special kind second-grade fluid (SGF) across movable sheet nonlinear source/sink field effect. The mass suction/injection stretching/shrinking boundary conditions also inspected calculate fine points multiple solutions. Design/methodology/approach leading equations that govern ferrofluid reduced group ordinary differential applying similarity variables. converted numerically solved bvp4c solver. Afterward, discussion carried out examine different physical parameters nanofluid thermal properties. Findings Multiple revealed happen for situations unsteadiness, shrinking as well stretching sheets. Greater suction slows separation layers causes critical values expand. region where appear is observed expand increasing magnetic, non-Newtonian parameters. Moreover, velocity significantly uplifts while temperature declines due parameter. Originality/value novelty work deliberate impact on SPF an erratic source/sink. confirmed results provide very good consistency accepted papers. Previous studies have not yet fully explored entire analysis proposed model.
Language: Английский
Citations
4
Results in Engineering, Journal Year: 2024, Volume and Issue: 22, P. 102315 - 102315
Published: May 23, 2024
The power electrical devices are being continuously trimmed down and must disperse a greater amount of heat flux, overheating has become significant issue. Ferrofluids, also known as magnetic nanofluids, consist solid nanoparticles that exhibit superior thermal conductivity compared to their underlying fluids, which can be either aqueous or oil based. This facilitates increased rates convective transfer, but more importantly, it allows for external flow modification using field. work is unique in analyses hybridized ferrofluid over shrinking/stretching surface with radiative magnetization force. governing equations were solved the bvp4c function MATLAB, after transformed into ordinary differential (ODEs) by similarity transformations. system acquires bimodal solution, stability analysis validates physical dynamic first solution. local skin friction coefficient, Nusselt number, temperature velocity profiles, substantial influence effects all studied graphically displayed. key findings values decreasing both second solutions increasing. An increasing trend observed increases. results compareded reported literature found agreement.
Language: Английский
Citations
4
Nano Trends, Journal Year: 2025, Volume and Issue: unknown, P. 100072 - 100072
Published: Jan. 1, 2025
Language: Английский
Citations
0
Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(1)
Published: Jan. 1, 2025
Ferrofluid, as a novel functional material with unique properties, holds significant promise for applications in various fields, including magnetic sealing technology, bubble removal operations fluid sensor applications, and precise control of targeted drug delivery processes chemical reactions using bubbles carriers. In this paper, we established two-phase ferrofluid flow model under non-uniform field, utilizing phase field equations, Maxwell non-conducting electromagnetic Navier–Stokes equations. A high-precision spectral element method was employed to discretely solve the governing two distinct schemes applied Notably, Scheme II enhances computational efficiency by constructing constant coefficient matrix related generation potential. Simulations were conducted on horizontal double-disk translation, distribution within cylinder uniform stretching droplets non-magnetic organic liquid. The simulation results compared theoretical predictions experimental data validate accuracy reliability our proposed model. Additionally, investigated effects gradient, intensity, magnetization, Eötvös number motion deformation during their ascent both fields. indicate that impact rise aligns previous studies. contrast, increased bonding significantly inhibits due gradient. Moreover, enhanced susceptibility facilitates splitting. exhibit oscillatory behavior, oscillation duration decreasing Bond increases.
Language: Английский
Citations
0
Biologia, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 11, 2025
Language: Английский
Citations
0