Magnetization Dynamics-Modulated Near-Infrared Mie Scattering Enables Homogeneous Femtomolar Immunosensing for Whole Blood.
Low-abundance biomarkers in whole blood hold immense clinical value for disease diagnosis. However, their detection remains constrained by the difficulty of conventional assays in simultaneously achieving high sensitivity, rapid turnaround, and operational simplicity. Here we introduce optomagnetic particle spectroscop...