Immunofluorescence staining enables the detection and localization of antigens in diverse types of tissues in various cell preparations. AMSBIO has now launched CellO-IF, an immunofluorescence staining reagent kit designed to accelerate the labeling of organoids and spheroids directly in hydrogels or extracellular matrices. The kit is available in two formats for labeling 3D and 2D samples. The company claims that CellO-IF eliminates the need for harvesting, clearing, transferring, and centrifuging, significantly reducing sample loss and generating high-quality data within hours.