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Quantum diamond microscopy (QDM) is a technique for wide field-of-view diffraction-limited imaging of a thin and dense layer of negatively charged nitrogen-vacancy (NV) defects in engineered diamond crystals. In the recent past, QDM has enabled imaging of a diverse class of samples with microscopic magnetic field profiles, for example, biological cells with magnetic nanoparticles and current flow profiles in thin quantum materials. A challenging extension of the technique is to perform spatially resolved magnetic field imaging from in-vitro 2D or 3D cultures of mammalian neurons. This potential development can lead to an alternative magnetometry-based neuronal imaging technique, with advantages over conventional scattering-limited multi-photon in-vivo calcium imaging.In this talk I will describe our path toward volume imaging of neurons with QDM.
Kasturi Saha (Wed,) studied this question.