Change search
ReferencesLink to record
Permanent link

Direct link
Biocompatible X-ray opaque polymers for medical devices
KTH, School of Information and Communication Technology (ICT).
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

During coronary catheterization X-ray imaging is used to image coronary artery system. After the procedure X-ray imaging may be used to locate devices purposely left in the patient. The objective of this thesis was to investigate the possibility of improving X-ray opacity to medical devices made by St Jude Medical Systems AB. Two different routes were explored, inorganic-organic hybrid materials and functionalization of polymers with iodine. Sol-Gel synthesis was used to synthesize nanocomposite hybrid materials with TiO2 and Ta2O5. Iodine was incorporated by the use of an iodine containing initiator and by end group functionalization with triiodobenzoic acid. The materials were evaluated by X-ray imaging, Fourier Transform Infrared Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC), Thermal Gravimetric Analysis (TGA) and Scanning Electron Microscopy (SEM). The optical and mechanical properties were evaluated by visual inspection and by handling of the materials. Hybrid materials with Polydimetylsiloxane (PDMS) or Poly ester copolymers and Ta2O5 were found to have promising mechanical properties and degree of X-ray opacity. Iodinated polyesters with ~18 wt% iodine also demonstrated sufficient properties to promote further investigation. Some of the work done and obtained results has been excluded from this report due to patent applications.

Place, publisher, year, edition, pages
2011. , 38 p.
Trita-ICT-EX, 84
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-44036OAI: diva2:449152
Subject / course
Material Physics
Available from: 2011-10-19 Created: 2011-10-19 Last updated: 2011-10-19Bibliographically approved

Open Access in DiVA

fulltext(6675 kB)314 downloads
File information
File name FULLTEXT01.pdfFile size 6675 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
School of Information and Communication Technology (ICT)
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 314 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 93 hits
ReferencesLink to record
Permanent link

Direct link