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Noninvasive magnetocardiography of a living rat based on a diamond quantum sensor

MetadataDetails
Publication Date2024-06-12
JournalPhysical Review Applied
AuthorsZiyun Yu, Yijin Xie, Guodong Jin, Yunbin Zhu, Qi Zhang
InstitutionsZhejiang University, University of Science and Technology of China
Citations12

Diamond-based nitrogen-vacancy (N-$V$) centers hold the potential to overcome the sensor limitations for magnetocardiography (MCG), but their invasive measurement scheme is incompatible with clinical settings. This study presents a noninvasive diamond MCG system based on N-$V$ center ensembles enhanced by techniques such as magnetic flux concentration, and demonstrates a practical instance of noninvasive MCG measurement on a living animal. These results mark a substantial step toward deploying diamond MCG in biophysical applications, highlighting its future potential in biomagnetic observations.