Magnetospirillum bacteria sensing using a microbubble WGM resonator.

Amal Jose; Ramgopal Madugani; Rajkumar S. Kalra; Síle Nic Chormaic

doi:10.1117/12.3017292

20 June 2024 Magnetospirillum bacteria sensing using a microbubble WGM resonator

Amal Jose, Ramgopal Madugani, Rajkumar S. Kalra, Síle Nic Chormaic

Proceedings Volume 13004, Nonlinear Optics and its Applications 2024; 1300403 (2024) https://doi.org/10.1117/12.3017292
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

In this study, hollow whispering gallery resonators were filled with an aqueous solution containing magnetospirillum magneticum (strain AMB-1) bacteria and the response to an external magnetic field was investigated. Magnetotactic bacteria can align with the field lines when exposed to a magnetic field. This changes the effective refractive index of the resonator and leads to shifts in the resonance frequencies of the whispering gallery modes, depending on the applied magnetic field strength. This work investigates the potential of a microbubble resonator platform for biosensing applications and the use of magnetotactic bacteria as a novel magnetic field-sensing substance.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Amal Jose, Ramgopal Madugani, Rajkumar S. Kalra, and Síle Nic Chormaic "Magnetospirillum bacteria sensing using a microbubble WGM resonator", Proc. SPIE 13004, Nonlinear Optics and its Applications 2024, 1300403 (20 June 2024); https://doi.org/10.1117/12.3017292

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