Correction: Scaffold-free three-dimensional cell culturing using magnetic levitation

Abstract

The authors regret the inclusion of an incorrect figure caption for Fig. 2. The corrected figure caption for Fig. 2 is shown below. Fig. 2 Evaluation of levitation height (z) and density profiles through magnetic levitation. (A) Gd(III) chelates were named as Gx (Gadovist/Gadobutrol), Dx (Dotarem/Gadoteric acid) and Ox (Omniscan/Gadodiamide). (B) Standard curve for PE bead density against levitation height; linear curve fitting gives the standard function for the corresponding curve. (C–E) Levitation height profiles of single NIH 3T3 cells under 30/50/100/200 mM Gd concentrations. Single cell density profiles calculated through standard function of linear fitting.