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. Author manuscript; available in PMC: 2016 Dec 8.
Published in final edited form as: Nano Lett. 2016 Jun 14;16(7):3989–3994. doi: 10.1021/acs.nanolett.6b00320

Figure 3.

Figure 3

Cell viability and vitality assay on SH-SY5Y-tau cells. The dash-circled cell was punctured by nFTP once every hour for 12 h. The solid-circled cell was punctured by a microscale fiber. (a) Cell viability/cytotoxicity (L3224, Invitrogen) assay. Green-fluorescence indicated active esterase condition. Red-fluorescence indicated loss of cell membrane integrity. (b) Cell vitality (L34951, Invitrogen) assay. Green-fluorescence indicated loss of cell membrane integrity. Red-fluorescence indicated active metabolic condition.