[10a-N204-1~12] CS.10 Code-sharing Session of 6.5 & 7.6

[10a-N204-5] Nuclear spin-lattice relaxation time in nanobubble solutions

〇Kazuki Iwata¹, Teng Ma², Daisuke Tadaki³, Ayumi Hirano-Iwata^2,3, Michio Niwano¹ (1.Tohoku Fukushi Univ., 2.AIMR, Tohoku Univ., 3.RIEC, Tohoku Univ.)

Keywords:nanobubble, nuclear magnetic resonance, spin-lattice relaxation time

The spin-lattice relaxation time (T₁) of light hydrogen nuclei were measured in nanobubble (NB) solutions of nitrogen, oxygen, and carbon dioxide and their solvent, heavy water, using the inverted iteration method. As a result, a decrease of T₁ was found in the NB solution. This decrease in T₁ suggests that the mobility of the light hydrogen nuclei is reduced by the inclusion of NB, which may be due to the presence of a layer of crystallized water (interfacial water) near the NB interface, thereby reducing the mobility of the nuclei.