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. 2014 Oct 9;86(21):10855–10863. doi: 10.1021/ac5029837

Figure 2.

Figure 2

(a, b) Illustration of example electrodeless DEP device with platinum electrodes (1 cm apart) for localized microbial trapping in the constriction region. (c) Illustration of DEP trapping within a constriction device. (d) Well-separated DEP spectra (velocity under FDEP) for each strain: HTCD, LTCD, and NTCD; (e) DEP behavior of each C. difficile strain in the constriction region after 30 s of ac field, ∼300 Vpp/cm of nDEP (first column) at 100 kHz for all three strains or pDEP (second column) at 400 kHz, 1 MHz, and 2 MHz for HTCD, LTCD, and NTCD, respectively. Scale bar: 30 μm.