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. 2018 Mar 5;18(3):784. doi: 10.3390/s18030784

Figure 4.

Figure 4

Fluorescent images and amounts of immobilized His-tagged GFP and DsRed by applying AC electric field. The conditions of applying AC electric field are described as follows: 0, 20, 40, 60, 80, 100, and 120 Vpp of 20 Hz for the duration time of 30 min. (A) After the application of AC electric field, fluorescence images of immobilized His-tagged GFP. (B) After Milli-Q water wash and imidazole treatment, amounts of immobilized His-tagged GFP. (C) After the application of AC electric field, fluorescence images of immobilized His-tagged DsRed. (D) After Milli-Q water wash and imidazole treatment, amounts of immobilized His-tagged DsRed. Open and closed circle denote the amounts of immobilized His-tagged GFP and DsRed after Milli-Q water wash and imidazole treatment, respectively. Error bars represent the standard deviations from three independent experiments. Scale bar = 1 mm.