The Department of Materials Engineering at the University of Technology awarded a master's degree to the student, Amna Muhammad Jawad, Department of Materials Engineering / University of Technology for her thesis titled:
"Surface enhancement of Magnesium Implants for long term applications"
Whereas, the discussion took place in the postgraduate hall in Building B in the department on Tuesday, 4/18/2023 at nine o'clock in the morning, and the discussion committee consisted of Messrs:
- 1. Dr.Abbas Khamas Hussein, Chairman
- 2. Prof. Dr. Bahaa Sami Mahdi, member
- 3. Dr. Ishraq Abdul-Razzaq Kazem, member
- 4. Dr. Emad Saadi Abdul Karim, honorable member
- 5. Prof. Dr. Fatima Jaafar Muhammad, an honorable member
In addition to scientifically evaluating the dissertation by Prof. Dr. Ali Munther Mustafa/ University of Technology/ Department of Production and Minerals Engineering, and Prof. Dr. Haider Hassan Jaber/ University of Babylon/ College of Materials Engineering, and linguistically by a Asst. Prof. Dr. Jamal Jalal Daoud/ University of Technology/ Department of Materials Engineering
After the discussion committee recorded its observations on the thesis, which were in between explanation and correction, the student's defense of her thesis, and the end of the discussion, the committee decided to evaluate the thesis, and decided to grant the student a master's degree with a Pass Grade
The thesis aimed to study the effect of coating layer on biological behavior and bacterial activity of Magnesium implant, as well as to study the effect on surface properties, wettability and ion release rate of Mg ions. Surface pretreatment methods was used for Magnesium implants which are (Laser pretreatment and Chemical pretreatment), and then the surface was coated with composite layer (Polycaprolactone matrix reinforced with MgO Nano-powder with different percentages (0.5%, 0.75%, 1%). The result was that the use of surface pretreatment methods improved the surface properties and enhanced the adhesion between the coating and the substrate. Also, the use of coating material (PCL + MgO Nano-powder) enhanced the biological activity and anti-bacterial effect of magnesium implant, in addition to reduce the ion release rate.