Roghaye Khodadadi
1,2, Azim Khajeali
2, Alireza Farajollahi
2,3,4*, Parisa Hajalioghli
5, Noorallah Raeisi
61 Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
2 Medical Education Research Center, Tabriz, Iran
3 Faculty of Medicine, Department of Medical Physics, Tabriz University of Medical Sciences, Tabriz, Iran
4 Imam Reza hospital, Radiotherapy Department, Tabriz University of Medical Sciences, Tabriz, Iran
5 Faculty of Paramedicine, Department of Radiology, Tabriz University of Medical Sciences, Tabriz, Iran
6 Hajar Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran
Abstract
Introduction: The main objective of this study was to investigate the possibility of replacing electrophoresis cross-linker with non-electrophoresis N, N′-methylenebisacrylamide (BIS) in N-isopropyl acrylamide (NIPAM) polymer gel and its possible effect on dose response.
Methods: NIPAM polymer gel was prepared from non-electrophoresis grade BIS and the relaxation rate (R2) was measured by MR imaging after exposing the gel to gamma radiation from Co-60 source. To compare the response of this gel with the one that contains electrophoresis grade BIS, two sets of NIPAM gel were prepared using electrophoresis and non-electrophoresis BIS and irradiated to different gamma doses.
Results: It was found that the dose–response of NIPAM gel made from the non-electrophoresis grade BIS is coincident with that of electrophoresis grade BIS.
Conclusion: Taken all, it can be concluded that the non-electrophoresis grade BIS not only is a suitable alternative for the electrophoresis grade BIS but also reduces the cost of gel due to its lower price.