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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Oper Tech Orthop. 2010 Jun 1;20(2):106–109. doi: 10.1053/j.oto.2009.10.007

Fig. 3.

Fig. 3

CTFM application to determine traction forces of human patellar tendon fibroblast (HPTF). A. A HPTF on PG substrate embedded with fluorescent microbeads, which are not shown on this phase contrast image. B. PG substrate displacements defined by beads’ movements near the PG surface. C. CTF field. (adopted with permission from Fig. 6 in Yang et al. 2006, J Theor Biol 242:607–616).