New technology allows more precise view of the smallest nanoparticles

Science Daily  November 16, 2020 Researchers at the University of Houston have developed a new imaging technology called PANORAMA (PlAsmonic NanO-apeRture lAbel-free iMAging) which uniquely relies on unscattered light to detect sub-100 nm dielectric nanoparticles. It provides diffraction-limited resolution, higher surface sensitivity, and wide-field imaging with dense spatial sampling. Its system is identical to a standard bright-field microscope with a lamp and a camera – no laser or interferometry is needed. In a parallel fashion, PANORAMA can detect, count and size individual dielectric nanoparticles beyond 25 nm, and dynamically monitor their distance to the plasmonic surface at millisecond timescale. The invention […]