A Novel Porous Graphene Scaffold Prepared Using Freeze-drying Technique for Orthopedic Approaches: Fabrication and Buckling Simulation Using GDQ Method

سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 83

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شناسه ملی سند علمی:

JR_IJMSEI-17-4_007

تاریخ نمایه سازی: 24 بهمن 1401

چکیده مقاله:

In this article, a novel bio-nanocomposite consists of sodium alginate polymer-based graphene nanosheet enhanced incorporating wollastonite containing various amount of graphene nanosheet were produced using freeze-drying technique. The bio-nanocomposites were mechanically and biologically evaluated using tensile strength and biological test. The phase and topological characterization were conducted using scanning electron microscopy (SEM) and X-ray diffraction (XRD) technique. Subsequently, based upon Euler-Bernoulli and Timoshenko beam theories (EBT and TBT), the buckling responses of the porous bio-nanocomposite soft tissue are analyzed corresponding to various graphene amounts. In order to solve the governing equations a sufficient numerical solution is proposed. Elastic modulus and mass density of the porous bio-nanocomposite are extracted from the experimental tests. The obtained results indicated the sample with ۱ wt% graphene sheet has shown proper mechanical and biological features. Therefore, the sample with ۱ wt% graphene sheet can be used as potential case for light weight bone substitute applications.

نویسندگان

Sh. Foroutan

Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr/Isfahan, Iran

M. Hashemian

Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr/Isfahan, Iran

A. Khandan

New Technologies Research Center, Amirkabir University of Technology, Tehran ۱۵۸۷۵-۴۴۱۳, Iran

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