超灵敏量子生物传感器能“潜入”细胞读信号

Core Insights - The development of a new diamond quantum biosensor by the research team at the University of Chicago aims to track cellular changes and enable early detection of diseases like cancer, representing a cutting-edge research direction in the field [1][2] Group 1: Technology and Innovation - The new biosensor can successfully penetrate cells and is more stable and sensitive than previous versions [1] - The sensor's quantum bits maintain coherence even in small particles that can be absorbed by cells, addressing a long-standing issue in the field [1] - Inspired by quantum dot technology used in QLED TVs, the team applied a special shell to the diamond sensor to enhance its performance by suppressing harmful surface effects [1][2] Group 2: Performance Improvements - The new sensor exhibits a fourfold increase in spin coherence, an 1.8 times increase in fluorescence intensity, and significantly improved charge stability [2] - The protective shell not only safeguards the sensor but also facilitates the transfer of electrons from the diamond to the shell layer, enhancing the sensor's performance by reducing interference with quantum signals [2] Group 3: Interdisciplinary Research - This achievement integrates research from cell biology, quantum science, and materials science, addressing the performance drop of diamond quantum sensors at the nanoscale [2] - The advancements open new avenues for applying quantum sensing technology in biomedical fields [2]