## 1 Introduction  
Even while coronary bypass surgery and stenting only work to clear blocked arteries, additional atherosclerotic plaques can still cause issues. Reducing atherosclerotic potential risks is more crucial than ever after surgery to open a blockage. Acting as a conduit for blood flow, a stent comprised of a delicate, malleable mesh tube is inserted into a blood vessel where an aneurysm has developed. The blood flow is abruptly switched away from the aneurysm by this procedure. By reconfiguring the blood flow, the aneurysm is relieved of pressure, which reduces the risk of a rupture. However, application of bare-metal stents increases the chance of arterial re-narrowing. Furthermore, stents are susceptible to clot formation even after the surgery. A myocardial attack may result from these clots closing the artery. In the present research, we intend to analyze and explore an alternate way to deal with stenosis lumps and aneurysmics bulges by inserting a narrow layer of graphene along the flow channel. A collection of several clinical and computational studies on the flow of blood across a stented geometry is presented below in order to infiltrate the topic of the present study. [PERSON] et al. [1] provided case reports of two patients who had pipeline flow diversion for unruptured cerebral aneurysms. The goal of the trial was to reduce the risks of thrombobolic consequences by focusing on perioperative dual antiplatelet treatment. After receiving cilostazol medication, luminal narrowing significantly improved, and in-stent stenosis resolved, according to a postoperative digital subtraction angiography (DSA). Blood flow via stented vessels was examined by [PERSON] et al. [2]. In this work, the femoral artery underwent Computational Fluid Dynamics (CFD) analysis with blood flow taken into account as a pulsing, incompressible, and Newtonian flow across a realistic velocity waveform. It was shown that the obstruction may enlarge due to unfavorable flow fields that form upstream and downstream of the blockage. The likelihood of restenosis was significantly influenced by the stent's design as well. Such several studies have been conducted by researchers in the past few decades. Stents deployed are known to damage the sheath of the vessel into which the insertion is made. Hence a novel biomedical way to either deviate from the flow or change the flow characteristics needs to be discovered to avoid the damages caused by stent deployment. The idea of replacing a stent with a layer of chemical compound with biochemical properties is considered in the present manuscript. This is a novel idea for the medical field and a developing milestone is placed here to explore the field in this direction. One of the abundant elements that is a key ingredient for the existence of life on earth is carbon. Due to its unique electronic structure, carbon undergoes a formation of its allotrope in the form of a single layer of atoms arranged in a two-dimensional honeycomb lattice nanostructure called graphene. For numerous decades, theoretical research on the thermodynamic stability of two-dimensional crystals has suggested that isolation of graphene monolayers was unattainable [3]. A significant advance in this area was taken in 2004 by a Manchester research team led by [PERSON] and [PERSON], who described a method for creating single-layer graphene on a silicon oxide substrate by peeling the graphite using micromechanical cleavage [4]. Graphene revealed exceptional structural, electrical, and mechanical capabilities, and [PERSON] and [PERSON] were awarded the Nobel Prize in Physics six years later _\"for revolutionary discoveries with the two-dimensional substance graphene\"_. Several ways of producing graphene monolayers have been developed throughout this period [5; 6; 7]. Because of its 2D allotropic nature, it may be applied in a variety of biological domains. Graphene and its composites have medicinal uses such as gene and micromolecule medication delivery.