Figure 13. Spatial profiles of the chemoattractants near the surgical site.

(A) Spatial profile of the chemoattractant at a high injection rate ($l_{in}^C=567$) in Fig. 12A. (B) Concentrations of the chemoattractant in the radial direction for four different injection rates ($l_{in}^C=567$, 267, 56.7, 9.67) in Figs. 12A–D. Relatively strong chemoattractant injections are necessary in order to create a sufficient gradient of chemoattractants to attract infiltrative glioma cells.