FIG. 4.

Functional properties over days of nonstimulated and electrically stimulated CMTs constructed in 0.5 mg/mL fibrin and 1.0 mg/mL collagen gels and tethered to rigid (k=0.45 μN/μm) cantilevers. (A) Representative recording of the tension in function of the time and the pacing rate of a nonstimulated CMT on day 5. (B) Maximum capture rate. (C) Voltage threshold. (D) Static and dynamic cross-sectional stress. Data from (B–D) are the average of 10 CMTs±SEM. *p<0.01. Color images available online at www.liebertonline.com/tea