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. Author manuscript; available in PMC: 2021 Apr 1.
Published in final edited form as: Adv Healthc Mater. 2020 Jan 17;9(8):e1901454. doi: 10.1002/adhm.201901454

Figure 8.

Figure 8.

Magnetic microposts can be used to apply force to cells and quantify their response. (A) Cells adhere to the tops of magnetic microposts and contract, deflecting the posts. (B) Applying a magnetic field B causes an external force Fmag on the cell. The cell adjusts its environment by altering its force, which can be determined by measuring δ’. There are two types of magnetic microposts: those with nanowires and those with embedded particles. (C) Magnetic post with nanowire (red) surrounded by non-magnetic posts (blue). (E) Posts with magnetic particles (dark, center column) surrounded by non-magnetic posts (transparent). (D and F) Applying a magnetic field causes the magnetic post to deflect and the non-magnetic posts remain stationary. A and B are adapted with permission.[92] Copyright 2008, AIP Publishing LLC. C and D are Adapted under the terms of PNAS License to Publish.[93] Copyright 2007, National Academy of Sciences. E and F are adapted with permission.[94] Copyright 2017, Elsevier.