Fig. 5From: Effective capture of circulating tumor cells from an S180-bearing mouse model using electrically charged magnetic nanoparticlesDetection analysis of CTCs from in vitro spiked samples. a The capture efficiency of MDA-MB-231/GFP cells using NP+ in PBS and whole blood spiked with different numbers of cells (concentrations ranging from 10 to 106 cells/mL). Regression analysis of capture efficiency in whole blood (b) and PBS (c)Back to article page