[24p-1BB-1~16] KS.1 Solid State Quantum Sensor Group

6:00 PM - 6:15 PM JST(9:00 AM - 9:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[24p-1BB-16] Temperature sensing of color centers in detonation nanodiamonds for biological applications

〇Nene Hariki¹, Frederick Tze Kit So¹, Masaya Nemoto¹, Alexander I Shames², Ming Liu³, Akihiko Tsurui³, Taro Yoshikawa³, Yuto Makino³, Masanao Ohori¹, Masanori Fujiwara¹, Ernst David Herbschleb¹, Naoya Morioka^1,4, Izuru Ohki^1,5, Masahiro Shirakawa^5,6, Ryuji Igarashi⁵, Masahiro Nishikawa³, Norikazu Mizuochi^1,4 (1.ICR, Kyoto Univ., 2.BGU, 3.Daicel Corp., 4.CSRN, Kyoto Univ., 5.QST, 6.Kyoto Univ.)

Keywords:

detonation nanodiamond,NV center,intracellular thermometry

Nitrogen-vacancy (NV) centers in nanodiamonds (NDs) have attracted attention as versatile, biocompatible quantum sensors. For intracellular sensing, such as temperature sensing in a cell nucleus, the particle size of NDs should be smaller than 30 nm to avoid invasive methods. In this study, we performed temperature sensing using detonation NDs (DNDs) with particle sizes of ~ 10 nm and a high density of NVs by our original detonation method and the boiling acid treatment for 72 hours. We consider that these DNDs have the smallest size for thermometry of color-center-based NDs.