Fig. 2From: Noninvasive prenatal diagnosis targeting fetal nucleated red blood cellsCopyright 2010 Elsevier. b Diffusion filters for continuous flow classification and separation of fNRBCs. Reprinted with permission from ref [86]. Copyright 2006 The Royal Society of Chemistry. c Determining lateral displacement microfluidic chips: the magnetic bead microarrays for a two-step process for the separation of fNRBCs. Reprinted with permission from ref [91]. Copyright 2008 John Wiley & Sons. d Dielectrophoretic chips: the automated capture method by generating DEP cages to capture fNRBCs. Reprinted with permission from ref [92]. Copyright 2003, IEEEMicrofluidic physical methods for sorting/separation of fNRBCs. a Cross-flow microfiltration chip for fNRBC collection. Reprinted with permission from ref [85].Back to article page