Hassan Ghassan, Yilbas Bekir Sami, Abubakar Abba Abdulhamid, Al-Sharafi Abdullah, Al-Qahtani Hussain
Mechanical Engineering Department, King Fahd University of Petroleum and Minerals (KFUPM), 31261, Dhahran, Saudi Arabia.
K.A.CARE Energy Research & Innovation Center, 31261, Dhahran, Saudi Arabia.
Sci Rep. 2024 Jul 15;14(1):16292. doi: 10.1038/s41598-024-66944-8.
Ferro hydrophobic particles possess essential properties for controlling the behavior of suspended substances in water. By adjusting the concentration of these particles, the magnetic force within the fluid carrier can be modified, leading to the emergence of distinct flow structures and patterns on the water's surface. This study examines the cloaking phenomenon exhibited by different ferroparticle conditions, employing both experimental and numerical approaches. Under the magnetic influence, hydrophilic particles can attain cloaking velocities of up to 35 mm/s, while hydrophobic particles remain unaffected by the magnetic force, remaining suspended on the water's surface. Hydrophobization of ferroparticles not only decreases their water-cloaking ability but also alters their magnetic properties. The inherent hydrophobic nature of these particles enhances water surface stability, rendering them valuable in various applications, including biomedical and self-cleaning technologies. This research holds particular significance for manipulating suspended particles in water, particularly in biomedical applications like drug delivery and tissue engineering, as well as for advancing self-cleaning technologies.
铁疏水颗粒具有控制水中悬浮物质行为的基本特性。通过调整这些颗粒的浓度，可以改变流体载体中的磁力，从而导致水面上出现不同的流动结构和模式。本研究采用实验和数值方法，研究了不同铁颗粒条件下呈现的隐形现象。在磁影响下，亲水性颗粒可达到高达35毫米/秒的隐形速度，而疏水性颗粒不受磁力影响，仍悬浮在水面上。铁颗粒的疏水化不仅降低了它们的水隐形能力，还改变了它们的磁性。这些颗粒固有的疏水性质增强了水表面的稳定性，使其在包括生物医学和自清洁技术在内的各种应用中具有价值。这项研究对于操纵水中的悬浮颗粒具有特别重要的意义，特别是在药物递送和组织工程等生物医学应用中，以及对于推进自清洁技术而言。
