Noninvasive magnetocardiography of a living rat based on a diamond quantum sensor
Ziyun Yu, Yijin Xie, Guodong Jin, Yunbin Zhu, Qi Zhang, Fazhan Shi, Fang-yan Wan, Hongmei Luo, Ai‐Hui Tang, Xing Rong
Abstract
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.
Topics & Concepts
MagnetocardiographyDiamondPhysicsQuantumQuantum sensorMedicineQuantum mechanicsMaterials scienceQuantum informationQuantum networkComposite materialDiamond and Carbon-based Materials ResearchAtomic and Subatomic Physics ResearchMechanical and Optical Resonators