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Figure 3 | Nanoscale Research Letters

Figure 3

From: Rapid identification of bacteria utilizing amplified dielectrophoretic force-assisted nanoparticle-induced surface-enhanced Raman spectroscopy

Figure 3

Nanocolloid trapping mechanism. (a1) Five micrometers was induced with a negative DEP force to be concentrated in the middle area. (a2) The DEP-assembled microparticle aggregate traps the fluorescent nanocolloids effectively, thus exhibiting an evident fluorescence phenomenon. (b1, b2) NanoDEP trapping result at a lower concentration of fluorescent nanocolloids.

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