Nanodiamond quantum thermometers and their applications

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Abstract:

Fluorescent nanodiamonds are stable and nontoxic fluorescent probes, which are suited to chemical and biological analysis. Recently they have been intensively studied for quantum applications because their electron-spin-dependent fluorescence can provide us with a sensitive measurement tool for nanoscale information of magnetic field and temperature. In this talk, I will talk about our effort on the implementation of this technology to temperature measurements in biological analysis [1,2] with some recent results on our novel nanodiamonds [3].

[1] Fujiwara et al., Sci. Adv. 6, eaba9636 (2020).
[2] Oshimi et al., Lab Chip 22, 2519 (2022).
[3] Oshimi et al., ACS Nano 18, 35202 (2024).

Biography:

Masazumi Fujiwara is a Professor in the Department of Chemistry at Okayama University, Japan.

He leads the Nanochemistry Group, focusing on nanodiamond-based quantum sensing for chemical and biological applications.

Currently, he serves as the Principal Investigator (PI) for several research projects, including those funded by Grant-in-Aid (A) and the International Strategic Grant (A) by JSPS, which explore diamond quantum thermometry. Additionally, he is a Co-Principal Investigator (Co-PI) in the JST-ASPIRE International Strategic Partnership Project for Quantum Sensing.

For more information, please visit his group website: https://www.nanochem-okayama-u.net/fujiwara-profile