چکیده مقاله
Bones can be affected by injuries, fractures, diseases, accidents, and functional disorders Various therapeutic strategies have been introduced in which the use of scaffolds is considered an excellent solution for bone tissue function Among the existing methods for printing bone scaffolds, the extrusion based method is one of the advanced methods It has the characteristics of using different biomaterials and the possibility of making scaffolds with controlled porosity Hydroxyapatite is remarkable as a ceramic material in the construction of scaffolds due to the similarity of its chemical and crystalline composition to the mineral phase of bone, excellent biocompatibility, and high bone formation On the other hand, using chitosan together with hydroxyapatite as a composite, due to the biological properties of chitosan, leads to creating a desirable composite composition This research used hydroxyapatite chitosan composite material hydroxyapatite to chitosan weight ratio, 66 to 34 and 40 to 60 to make a scaffold using a 3D printer The results of Fourier transform infrared spectrum analysis related to chitosan and chitosan hydroxyapatite indicate that chitosan, hydroxyapatite, and glycerol as network builders were connected by physical hydrogen bonds and not chemical bonds The scaffold with the highest percentage of porosity of about 90% and the average size of porosity of 318 53 μm, with Young's modulus at 15% strain, 16 39 MPa, and compressive strength at 15% strain, 2 0471 MPa was prepared
کلیدواژهها
نویسندگان
Rana Kafili Zangbar
MS, Department of Metallurgical and Materials Engineering, Iran University of Science andTechnology, Tehran, Iran,
Jafar Javadpour
Professor, Department of Metallurgical and Materials Engineering, Iran University of Science andTechnology, Tehran, Iran
Hamidreza Rezaie
Professor, Department of Metallurgical and Materials Engineering, Iran University of Science andTechnology, Tehran, Iran
Seyed Amir Ghaffari
Associate Professor, Department of Metallurgical and Materials Engineering, Iran University ofScience and Technology, Tehran, Iran
شیوه ارجاع
Kafili Zangbar, Rana and Javadpour, Jafar and Rezaie, Hamidreza and Ghaffari, Seyed Amir,1403,Manufacturing and investigation of mechanical properties of the hydroxyapatite-chitosan scaffold by 3D printer,7th International Conference on Welding and Non Destructive Testing & 25th National Conference on Welding & Inspection & 14th National Conference on NDT & 3nd National Conference on Additive Manufacturing,Tehran
ارائهشده در
مجموعه مقالات هفتمین کنفرانس بین المللی جوشکاری وغیرمخرب، بیست و پنجمین کنفرانس ملی جوش و بازرسی، چهاردهمین کنفرانس ملی آزمایش های غیرمخرب و سومین کنفرانس ملی ساخت افزایشی1 اسفند 1403 · تهران