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(a) Schematic of microfluidic-assisted layer-by-layer 3D cell patterning.[299] A triple-layer cell-laden structure mimicking the blood vessel wall was created. Reproduced with permission from [299]. Copyright 2004, Elsevier. (b) Schematic of layer-by-layer cell patterning using dielectrophoretic (DEP) force.[301] See text for detailed descriptions.
