Effect of infill pattern on the mechanical properties of polydopamine-coated polylactic acid orthopedic bone plates developed by fused filament fabrication

被引:13
作者
Sharma, Shrutika [1 ]
Gupta, Vishal [1 ]
Mudgal, Deepa [1 ]
机构
[1] Thapar Inst Engn & Technol, Mech Engn Dept, Patiala 147004, India
关键词
bone plate; coating; elongation at break; flexural strength; infill pattern; polydopamine; tensile strength; SCAFFOLDS; CHEMISTRY; CELL;
D O I
10.1002/pen.26210
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Distal fractures are the most commonly experienced type of fractures that require fixation of bone plates for healing of fractured bones. Poly Lactic Acid (PLA)-based bone plates are porous and light in weight. However, they lack mechanical properties that limit their application in biomedical field. Polydopamine coating has been witnessed to undergo covalent interactions, enhancing the mechanical properties of the substrate. The present study is based on the fabrication of PLA-based bone plates using Fused Filament Fabrication with varying infill patterns. The infill patterns in the study include octet, cubic, grid, concentric, lines, and gyroid. Thereafter, polydopamine coating was deposited on these bone plates using direct immersion coating method. In the study, the effect of infill pattern on coating deposition and modification of mechanical properties has been studied. The microscopic images of fractured bone plates were captured. It was concluded that polydopamine coating was successful in improving mechanical properties for all infill patterns. The findings suggested that a concentric pattern should be used for applications that require both high mechanical strength and maximum elongation at break because elongation at break is higher for concentric patterns than gyroid patterns. Also, for applications requiring only high mechanical strength, a gyroid pattern should be used.
引用
收藏
页码:353 / 365
页数:13
相关论文
共 45 条
  • [1] Predicting the compressive strength of additively manufactured PLA-based orthopedic bone screws: A machine learning framework
    Agarwal, Raj
    Singh, Jaskaran
    Gupta, Vishal
    [J]. POLYMER COMPOSITES, 2022, 43 (08) : 5663 - 5674
  • [2] Post-yielding fracture mechanics of 3D printed polymer-based orthopedic cortical screws
    Agarwal, Raj
    Mehtani, Hitesh Kumar
    Singh, Jaskaran
    Gupta, Vishal
    [J]. POLYMER COMPOSITES, 2022, 43 (10) : 6829 - 6837
  • [3] Additive manufacturing-based design approaches and challenges for orthopaedic bone screws: a state-of-the-art review
    Agarwal, Raj
    Gupta, Vishal
    Singh, Jaskaran
    [J]. JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING, 2022, 44 (01)
  • [4] Bonada J., 2021, MAT BASEL, V14, P1
  • [5] Recent advances in bone tissue engineering scaffolds
    Bose, Susmita
    Roy, Mangal
    Bandyopadhyay, Amit
    [J]. TRENDS IN BIOTECHNOLOGY, 2012, 30 (10) : 546 - 554
  • [6] Scaffold Fabrication Technologies and Structure/Function Properties in Bone Tissue Engineering
    Collins, Maurice N.
    Ren, Guang
    Young, Kieran
    Pina, S.
    Reis, Rui L.
    Oliveira, J. Miguel
    [J]. ADVANCED FUNCTIONAL MATERIALS, 2021, 31 (21)
  • [7] Derise MR., 2020, Int J Mech Mechatron Eng, V20, P54
  • [8] Effect of infill parameters on material sustainability and mechanical properties in fused deposition modelling process: a case study
    Dev, Saty
    Srivastava, Rajeev
    [J]. PROGRESS IN ADDITIVE MANUFACTURING, 2021, 6 (04) : 631 - 642
  • [9] The Effects of Combined Infill Patterns on Mechanical Properties in FDM Process
    Dezaki, Mohammadreza Lalegani
    Ariffin, Mohd Khairol Anuar Mohd
    [J]. POLYMERS, 2020, 12 (12) : 1 - 20
  • [10] Effect of Infill Parameters on Tensile Mechanical Behavior in Desktop 3D Printing
    Fernandez-Vicente, Miguel
    Calle, Wilson
    Ferrandiz, Santiago
    Conejero, Andres
    [J]. 3D PRINTING AND ADDITIVE MANUFACTURING, 2016, 3 (03) : 183 - 192