Available from Greiner Bio-One, Frickenhausen, Germany, is an extended product portfolio of Cellstar cell culture vessels with cell-repellent coatings. The company has added to its product line cell culture flasks with three different growth areas—25 cm2, 75 cm2, and 175 cm2—each in both standard and filter-top formats. The vessels are suited to cultivating cells to form 3D structures, using a technology based on the magnetization of cells using nanoparticles that attach themselves to the cell membrane. The development of 3D spheroids or ring structures is initiated by briefly applying magnets. The vessels are suited for suspension cultures and for cultivating spheroids, stem cell aggregates, and gel-based 3D cultures. For more information, visit Greiner Bio-One.