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. Author manuscript; available in PMC: 2017 Apr 24.
Published in final edited form as: Nano Lett. 2016 Mar 23;16(4):2198–2204. doi: 10.1021/acs.nanolett.5b04364

Figure 4.

Figure 4

T cell long-term expansion and restimulation on grid patterns. A. Two groups experiments carried out, one without additional IL-2 and the other group with 50 ng/mL IL-2 addition at the beginning of cell culture. Cell induction and proliferation were assayed by CFSE dilution every 2 days from day 3 and at day 9 cells were frozen down for restimulation; B. Cells were restimulated by Dynabeads and IFN-γ expression percentage is analyzed for the study of cell functionality, grid patterns showed less but comparable percent of IFN-γ comparing with Dynabeads.