Volume 17, Issue 8 pp. 1228-1230
Letter

Virus Detection using Second Harmonics of Magnetic Nanoparticles

Ryuichi Hirota

Ryuichi Hirota

Non-member

Graduate School of Engineering, Tohoku University, 6-6-05 Aramaki-aza-Aoba, Aoba-ku, Sendai, Miyagi, 980-8579 Japan

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Toru Murayama

Toru Murayama

Non-member

Faculty of Engineering, Tohoku Gakuin University, 1-13-1 Chuo, Tagajo, Miyagi, 985-8537 Japan

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Ryota Katsumi

Ryota Katsumi

Non-member

Graduate School of Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi, 441-8580 Japan

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Tokuhisa Kawawaki

Tokuhisa Kawawaki

Non-member

Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601 Japan

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Shin Yabukami

Shin Yabukami

Member

Graduate School of Engineering, Tohoku University, 6-6-05 Aramaki-aza-Aoba, Aoba-ku, Sendai, Miyagi, 980-8579 Japan

Faculty of Engineering, Tohoku Gakuin University, 1-13-1 Chuo, Tagajo, Miyagi, 985-8537 Japan

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Ryuji Igarashi

Ryuji Igarashi

Non-member

Institute for Quantum Life Science, National Institutes for Quantum and Radiological Science and Technology, 4-9-1 Anagawa Inage-ku, Chiba, 263-8555 Japan

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Yuichi Negishi

Yuichi Negishi

Member

Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601 Japan

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Moriaki Kusakabe

Moriaki Kusakabe

Non-member

Research Center for Food Safety, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657 Japan

Matrix Cell Research Institute Inc., Ibaraki, 300-1232 Japan

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Masaki Sekino

Masaki Sekino

Member

Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656 Japan

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Takashi Yatsui

Takashi Yatsui

Non-member

Graduate School of Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi, 441-8580 Japan

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Akihiro Kuwahata

Corresponding Author

Akihiro Kuwahata

Member

Graduate School of Engineering, Tohoku University, 6-6-05 Aramaki-aza-Aoba, Aoba-ku, Sendai, Miyagi, 980-8579 Japan

Correspondence to: Akihiro Kuwahata. E-mail: [email protected]Search for more papers by this author
First published: 12 April 2022
Citations: 3

Abstract

Virus detection methods based on the nonlinear magnetic response of magnetic nanoparticles have been investigated, and magnetic detection methods using the third harmonic have been widely applied on account of their high sensitivity, short measurement-time, and low cost. In this letter, we propose a virus detection method using the second harmonics to improve the signal intensity. We find that the signal to noise ratio of the second harmonic is approximately three times higher than that of the third harmonic. A comparison of the ratio of the second harmonic to the fourth harmonic (R24) and the ratio of the third harmonic to the fifth harmonic (R35) shows that R24 is more sensitive to identifying changes in virus concentration. Our proposed method has the potential to be utilized for rapid screening on virus detection. © 2022 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

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