There is an intense worldwide activity in the development of instrumentation for medical diagnosis and bioscreening based on biological labeling and detection of nanoparticles. Based on this profound observation, Hall and ion slip effects on magnetohydrodynamic (MHD) free convective rotating flow of nanofluids in a porous medium past a moving vertical semi-infinite flat plate are investigated. The equations for governing flow are solved analytically by perturbation approximation. The effects of various parameters on the flow are discussed through graphs and tables. The velocity increases with Hall and ion slip parameters. An increase in the convective parameter led to amplify the thermal boundary layer thickness, but when the heat generation parameter is taken into consideration, an opposite effect occurs. The skin friction coefficient increases with an increase in nanoparticle volume fraction and it reduces with increase in Hall and ion slip parameters. Outcomes disclose that the impact of thermal convection of nanoparticles has increased the temperature distribution, which helps in destroying the cancer cells during the drug delivery process.

中文翻译：

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霍尔和离子滑移对纳米流体非定常 MHD 对流旋转流动的影响——在生物医学工程中的应用

基于生物标记和纳米粒子检测的医学诊断和生物筛选仪器的开发在世界范围内开展了激烈的活动。基于这一深刻的观察，研究了霍尔和离子滑移对多孔介质中纳米流体通过移动的垂直半无限平板的磁流体力学 (MHD) 自由对流旋转流动的影响。用于控制流动的方程通过微扰近似进行解析求解。通过图形和表格讨论了各种参数对流量的影响。速度随着霍尔和离子滑移参数而增加。对流参数的增加导致热边界层厚度的放大，但当考虑发热参数时，会出现相反的效果。皮肤摩擦系数随着纳米颗粒体积分数的增加而增加，并随着霍尔和离子滑移参数的增加而减小。结果表明，纳米颗粒的热对流影响增加了温度分布，这有助于在药物输送过程中破坏癌细胞。