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. Author manuscript; available in PMC: 2018 Apr 11.
Published in final edited form as: Lab Chip. 2017 Mar 29;17(7):1340–1348. doi: 10.1039/c6lc01277a

Fig. 4.

Fig. 4

Combined dialysis-DEP isolation system. (A) Illustration of the microfluidic apparatus used to isolate bacteria from whole blood using DEP. Two MMDs were operated inline to achieve sample deionization so that target bacteria could be collected by pDEP. (B) The total trapping efficiency for two model organisms was evaluated by culturing fluid collected at all outlets of the apparatus and comparing the total colony forming unit counts to that of the input specimen. (C) The capture efficiency was estimated using culture methods as a function of the total number of E. coli spiked into input blood samples.