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. 2015 Jan 8;15(1):1047–1059. doi: 10.3390/s150101047

Figure 1.

Figure 1.

Quadrupolar microelectrodes with (a) 10 µm tip to tip spacing between opposite electrodes used for the collection of NAVDY particles and (b) 4 µm tip to tip spacing used for the collection of M13 phage.