Quantum sensing of paramagnetic analytes by nanodiamonds in levitated microdroplets and aqueous solutions.

ABSTRACT: Nanodiamonds (ND) hosting negatively charged nitrogen-vacancy (NV^-) color centers have received attention for applications in magnetic field, electric field, chemical, and bio-sensing. The versatility of these probes is their excellent room-temperature optical and spin properties, along with their small size, functionalized surfaces and resistance to bleaching, making them ideal as nanoscopic sensors in picoliter volumes (e.g. single cells, but also microcompartments and aerosols). For quantitative ND-NV^- sensing of paramagnetic analytes in such contexts, however, there remains an incomplete understanding of how factors related to the aqueous phase environment control detection efficiency. To address this, optically detected magnetic resonance (ODMR) is measure

SUBMITTER: Brown EK 

PROVIDER: S-EPMC12451745 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature