Quantum sensing leverages quantum properties to enhance the sensitivity and resolution of sensors beyond their classical sensing limits. Quantum sensors, such as diamond defect centers, have been developed to detect various physical properties, including magnetic fields and temperature. However, the spins of defects are buried within dense solids, making it difficult for them to strongly interact with molecular analytes. Therefore, nanoporous materials have been implemented in combination with electron spin center of molecules (molecular qubits) to produce quantum chemosensors that can distinguish various chemical substances. Molecular qubits have a uniform structure, and their properties can be precisely controlled by changing their chemical structure. Metal–organic frameworks (MOFs) are suitable for supporting molecular qubits because of their high porosity, structural regularity, and designability. Molecular qubits can be inserted in the MOF structures or adsorbed as guest molecules. The qubits in the MOF can interact with analytes upon exposure, providing an effective and tunable sensing platform.

中文翻译：

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迈向量子鼻：金属-有机框架中基于分子量子比特的量子化学传感


量子传感利用量子特性来提高传感器的灵敏度和分辨率，使其超越其经典传感极限。量子传感器（如金刚石缺陷中心）已被开发用于检测各种物理特性，包括磁场和温度。然而，缺陷的自旋隐藏在致密的固体中，这使得它们难以与分子分析物强烈相互作用。因此，纳米多孔材料与分子的电子自旋中心（分子量子比特）相结合，以生产可以区分各种化学物质的量子化学传感器。分子量子比特具有均匀的结构，可以通过改变其化学结构来精确控制其性质。金属有机框架 （MOF） 因其高孔隙率、结构规则性和可设计性而适合支撑分子量子比特。分子量子比特可以插入 MOF 结构中或作为客体分子吸附。MOF 中的量子比特在暴露时可以与分析物相互作用，从而提供有效且可调的传感平台。