Gultekin Goller
Prof. Dr. Gultekin Goller is a materials science professor who graduated from Istanbul Technical University in 1989 with a B.S. in Metallurgical Engineering. In 1997, he received his Ph.D. in the field of Metallurgical and Materials Engineering from Istanbul Technical University. He attended to the Tribology Group of Cleveland State University in 1995 as a UNIDO fellow for the PhD level studies. He joined to the Metallurgical and Materials Engineering Department of ITU in 1999 as an assistant professor. Professor Goller was promoted to associate professor in 2005 and became a full professor in 2010. His research fields include Modern Armour Sytstems, High Entropy Alloys, Refractory Metals and Alloys (TZM alloys), Ceramic and Composite Materials (ultra-high temperature ceramics and composites, bioactive and bioinert ceramics and composites, polymeric matrix composites), Glass and Glass Ceramics, Biomaterials, Synthesis of High Technology Ceramic Powders, Plasma Spray Coating Process (thermal barrier coatings) and Spark Plasma Sintering (SPS) Technique (Boride, carbide, nitride based monolithic and composite materials), Characterization of Materials (X-Ray and Electron Microscopy).
Prof. Dr. Gultekin Goller is the founder of Biomaterials Research and Characterization Laboratory, Laser Cutting and Welding Laboratory, Composite Material Production Laboratory and Spark Plasma Sintering Laboratories in Istanbul Technical University Metallurgy and Materials Engineering Department. Prof. Dr. Gultekin Goller has supervised 11 completed and 2 ongoing PhD studies; 36 completed, 1 ongoing graduate studies. As a date of September 2025, his professional and scientific activity comprises: papers, which are cited over 4000 times (h index = 36; As of September), published in science citation index journals (136); papers published in international peer-review periodicals (97); the proceedings of international or national conferences (135); participating in different international or national research projects (49); author of 5 international book chapter; member of the scientific committee of different meetings; head of the organizing committee for different international conferences; member of the International Editorial Board of some journals; and reviewer for different journals. Prof. Dr. Gultekin Goller served as a chair of Metallurgical and Materials Engineering Department between 2010-2013, and contributed to the Ministry of Defence R&D Technologies Division, Material Processes and Technologies Panels as a university representative on 2010-2016. In 2019, Prof. Goller established a company called "GG Materials Techologies" at ITU ARI Teknokent operating in the field of production and characterization of modern armour systems and advanced materials. Prof. Goller has been acted as an international expert in the accreditation studies of the Materials Science doctoral program of the Romanian Agency for Quality Assurance in Higher Education (ARACIS) since 2021. Prof. Goller has been included in the list of the most influential scientists (top 2%) carried out by Stanford University created according to the calculation of the citation numbers, H-index values, co-authorships and career-long impact factors of the scientists. He has also been honored with the “Pro Scientia et Innovatio” Honor Order from Romania and the title of Doctor Honoris Causa.
Abstract
Development drug delivery system with biomaterials for capsule drugforms
Gultekin Goller1
1 Istanbul Technical University, Department of Metallurgical and Materials Engineering, 34469 Maslak, Istanbul, Turkey
Corresponding author: goller@itu.edu.tr
Capsules are among the most widely used pharmaceutical dosage forms due to their versatility and ability to improve patient compliance. Gelatin-based hard capsules are extensively employed in the industry owing to their mechanical strength and cost-effectiveness. However, they present limitations, such as instability under high temperature and humidity conditions, as well as restrictions related to dietary habits and faith-based preferences due to their animal origin. Consequently, plant-based capsules synthesized from polysaccharides, particularly cellulose, have emerged in recent years as a promising alternative.
This presentation focuses on the extraction of cellulose from agricultural wastes as a raw material for the production of plant-based capsules, and on the evaluation of the obtained cellulose in capsule manufacturing. Accordingly, the cellulose extraction process and capsule production methodology will be presented, and the findings of the conducted experimental studies will be discussed. The anticipated outcomes include the development of plant-based capsules with superior mechanical properties compared to gelatin capsules, offering a sustainable alternative for patient groups who prefer to avoid animal-derived products.
BioReMed 2025
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