[21p-A602-1~11] 2.4 Medical application

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)English Presentation

[21p-A602-10] Coverage effect of iodine and astatine adsorption on Au surfaces

〇(D)Jeffrey Tanudji¹, Susan Aspera², Hideaki Kasai^1,3, Michio Okada^1,3, Tetsuo Ogawa^1,3, Hiroshi Nakanishi² (1.Osaka Univ., 2.NIT Akashi, 3.Inst. Radiation Sci.)

Keywords:

Adsorption on gold surface,Astatine and iodine,Theoretical calculation

Gold nanoparticle is currently studied as carriers for radioactive iodine and astatine for radiotherapy purposes. To study the limits of adsorption, we performed a study on the coverage of iodine and astatine adsorptions on different gold surfaces. We look at a flat (111) surface and (211) surface and compare the performance of both as well as looking at the effect that a more crowded surface would have on the adsorbates. We found that the gold surfaces are able to adsorb a substantial amount of radionuclides up to 0.75 monolayers.The results serve to highlight the attractiveness of gold as a carrier for radiotherapy.