CD Bioparticles provides NIR-II-emitting Ag2S quantum dots (QDs). It is well known that light from visible to NIR wavelengths (650–1350 nm) is noninvasive for detecting and imaging of abnormal tissue. The NIR optical window consist of the first near-infrared region (NIR-I; 650-000 nm) and the second near-infrared region (NIR-II; 1000-1700 nm). The NIR-II can be more conducive to imaging than NIR-I due to lower fluorescence and reduced light scattering. near-infrared quantum dots https://www.cd-bioparticles.com/product/ag2s-quantum-dots-list-256.html
