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. 2020 Jul 23;2020:3970530. doi: 10.34133/2020/3970530

Figure 2.

Figure 2

Presence of Gd3+ during formation of 3D cellular structures via magnetic assistance. The presence of Gd3+ ions within 3D cellular structures printed with magnetic assistance is observed in the two cell lines. A higher Gd3+ concentration is observed in 3D fibroblast structures (∗∗∗) than in the MDA-MB-231 structures (∗∗), as compared to their control samples formed through gravitational settling. Trace amounts of Gd3+ present in the control samples are attributed to instrument measurement sensitivity.