Phononic modulation of spin-lattice relaxation in molecular qubit frameworks.

The solid-state integration of molecular electron spin qubits could promote the advancement of molecular quantum information science. With highly ordered structures and rational designability, microporous framework materials offer ideal matrices to host qubits. They exhibit tunable phonon dispersion relations and spin distributions, enabling optimization of essential qubit properties including the spin-lattice relaxation time (T) and decoherence time.

Superhydrophilic Fluorinated Polymer Probe for Zero-Background F MRI with Adaptable Targeting Ability.

F magnetic resonance imaging (F MRI), with zero background, high tissue penetration depth, excellent spatial resolution, and nonradioactive features, has attracted considerable attention but faces tough challenges due to the shortage of sensitive and selective targetable probes. Herein, we report a biocompatible and highly sensitive F MRI probe with an adaptable tumor-targeting ability. The fluorine-grafted polymer (PIBMA-F) probes were rich with sulfoxide and carboxy groups, containing a high fluorine content (∼17 wt %).