A numerical attempt has been initiated to analyze an unsteady pulsatile blood flow of ternary nanoparticles (, , and ) in a two-dimensional model through tapered arterial stenosis when a magnetic field is present. The most significant motivations for treating tri-hybrid nanoparticles as nanomaterials is their exceptional antimicrobial and biocompatible properties, which enhance thermal conductivity and facilitate nano-drug delivery. The semi-analytical approach used in this model involves solving the governing Navier-Stokes equations. At the same time, computational simulations are performed using the shooting method with the assistance of a MATLAB solver. Furthermore, the effects of flow-related parameters such as wall shear stress and resistive impedance on velocity distribution have been discussed. The findings indicate that the wall shear stress rises with increasing Womersley parameters, whereas the flow velocity diminishes with higher magnetic parameter values. Moreover, sensitivity analysis is elucidated to ascertain the interrelated impacts of the key parameters. In addition, the current study also validated the existing results and it was found to have a good agreement. Major exploration of this study reveals that the obtained results may have implications for cancer treatment, tumor therapy, heart surgery, and other hyperthermia therapies.
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http://dx.doi.org/10.1016/j.heliyon.2025.e42748 | DOI Listing |
Heliyon
February 2025
Department of Mathematics, School of Advanced Sciences, Vellore Institute of Technology, Chennai, 600127, Tamilnadu, India.
A numerical attempt has been initiated to analyze an unsteady pulsatile blood flow of ternary nanoparticles (, , and ) in a two-dimensional model through tapered arterial stenosis when a magnetic field is present. The most significant motivations for treating tri-hybrid nanoparticles as nanomaterials is their exceptional antimicrobial and biocompatible properties, which enhance thermal conductivity and facilitate nano-drug delivery. The semi-analytical approach used in this model involves solving the governing Navier-Stokes equations.
View Article and Find Full Text PDFIntroduction: Cerebral haemodynamics is highly compromised in Type 2 Diabetes Mellitus (T2DM). T2DM reduces cerebral blood flow and increases vascular resistance as the duration of the disease increases. Yoga, a holistic method of healing is known to influence cerebral haemodynamics.
View Article and Find Full Text PDFEur J Cardiothorac Surg
March 2025
Department of Cardiovascular Surgery, University Heart Center Freiburg-Bad Krozingen, Freiburg, Germany.
Objectives: Aim of this study was to investigate how different indices to express aortic stiffness can be understood and what the impact of different loading conditions is.
Methods: Thoracic aortas from swine (n = 6) and sheep (n = 6) were tested in a pulsatile mock circulation loop. Aortas were loaded at constant heart rate and stroke volume at increasing diastolic pressure with constant pulse pressure of 40 mmHg from 60/20 to 180/140 mmHg in 20 mmHg steps.
J Anim Sci
March 2025
Department of Animal Science, Texas A&M University, College Station, Texas, USA.
Developmental changes in response to nutritional extremes may in some cases be manifested later in adult life. Objectives of experiments reported herein were to test the hypotheses that maternal nutrition during mid- to late-gestation interacts with postnatal nutrition during the juvenile period in heifers to impact 1) tonic secretion of gonadotropins, and 2) estradiol-17β (E2) negative and positive feedback responsiveness in adulthood. Heifers were selected from a larger population programmed nutritionally using a 3 × 2 factorial arrangement of pre- and postnatal diets.
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