MSc.Thesis Defense:Serra Ersoy
ADDITIVE MANUFACTURING OF GREEN SYNTHESIZED NANOPARTICLES FOR BIOLOGICAL AND ELECTROCHEMICAL APPLICATIONS
Serra Ersoy
Materials Science and Nano Engineering, MSc. Thesis, 2024
Thesis Jury
Prof. Bahattin KOÇ (Thesis Advisor), Prof. Cengiz KAYA (Thesis Co-Advisor),
Prof. Yusuf Ziya MENCELOĞLU, Prof. Emre ERDEM, Asst. Prof. Hakan YILMAZER
Date & Time: 20th December, 2024 – 15.00 PM
Place: FENS L030
Keywords: Green Synthesis, Hyperthermia, Micro Supercapacitor, 3D Printing, Sustainable Productions
Abstract
Green synthesis has become quite widespread in recent years due to its sustainability, cost-effectiveness, and environmental friendliness compared to traditional physical and chemical nanoparticle production methods. Previous studies have focused on the antibacterial and antitoxic properties of nanoparticles produced from plant extracts, but their integration into biological and electrochemical applications through controlled material manufacturing has never been investigated. For this reason, the thesis study aimed to produce controlled nanoparticles and materials for specific applications using two sustainable methods, like green synthesis and additive manufacturing. Firstly, the production and characterizations of silver, gold, titanium dioxide, zinc oxide, and iron oxide nanoparticles using the green synthesis method with the help of broccoli extract were discussed. Secondly, the hyperthermia application of kirigami meta-structured hydrogels made from N-isopropylacrylamide, polyethylene glycol, gold nanoflowers, polydopamine, and rose bengal photo-initiators to eliminate the disadvantages of photothermal therapy was demonstrated using a micro-stereolithography 3D printer, and the physicochemical, thermal, morphological, and biological behaviors of hydrogels with five different compositions were examined. Lastly, the electrode obtained from zinc oxide nanoparticles and calcined broccoli, using polyvinyl alcohol/potassium hydroxide electrolyte and a cotton fabric substrate, has been developed into a symmetric, flexible, quasi-solid-state micro supercapacitor with an extrusion-based 3D printer. In this thesis, it has been shown that nanoparticles produced by green synthesis can be converted into products using two different devices from additive manufacturing, which provide environmentally friendly and sustainable results not only for biological but also thermal and electrical applications in future studies compared to traditional methods.