Dresden 2026 – wissenschaftliches Programm
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FM: Fachverband Funktionsmaterialien
FM 19: Advanced Microscopy and Tomography for Functional Materials
FM 19.6: Vortrag
Donnerstag, 12. März 2026, 11:45–12:00, BEY/0E40
Advanced Polymer-Tungsten Nanocomposites for Radiation Shielding and X-ray Computed Tomography Applications — Taylan BAŞKAN1, Saliha MUTLU2,3, Bülend ORTAÇ3, Ali KARATUTLU3,4, Sevil SAVAŞKAN YILMAZ2,3, and •Ahmet Hakan YILMAZ1 — 1Karadeniz Technical University Physics Department, Trabzon, 61080, Türkiye — 2Karadeniz Technical University Chemistry Department, Trabzon, 61080, Türkiye — 3National Nanotechnology Research Center (UNAM) and Institute of Materials Science Nanotechnology, Bilkent University, Ankara, 06800, Türkiye — 4Sivas University of Science and Technology, Department of Engineering Basic Sciences, Sivas, 58100 Turkey
The growing trend of ionizing radiation in biomedicine and industry has intensified the need for efficient and reliable radiation shielding materials. In our current work, we incorporated W nanoparticles and WO3 nanoparticles with varying proportions in the PMSQ polymer to synthesize dual-functional nanocomposites with simultaneous gamma ray shielding and contrast enhancement in computed tomography imaging. This study will present the three-dimensional micro-evolutions of biodegraded polymer-metal/polymer-metal oxide composite materials using synchrotron-based X-ray computed tomography methods upon post γ-radiolysis exposure from 0.5 kGy to 5 kGy. The synchrotron-based XCT available at BEATs in SESAME demonstrates the internal structural defects and morphology non-destructively in the vicinity of resolved micro-scales with 650 nm resolution.
Keywords: X-ray computed tomography; nanocomposite; radiation shielding; polymethylsilsesquioxane; nanoparticle