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Photographs of the NegCTC-μChip, which consists of free-bead capture and lateral magnetophoretic microchannels. Enlarged views of (i) residual magnetic nanobeads captured on the ferromagnetic wires and (ii) zones 1 and 2 in the free-bead capture microchannel. In the lateral magnetophoretic microchannel, (iii-a) WBCs (green) bound to magnetic nanobeads are forced laterally into the waste outlet, and (iii-b) spiked cancer cells (red) flow into the CTC outlet.
