Collagen content, tensile stiffness, and tensile strength of self-assembled constructs. (A) Collagen/WW for all groups. Ribose treatment during All Weeks had the highest collagen/WW (104% > control), followed by Week 2 (53% > control). (B) Tensile stiffness for all groups. The highest Young's moduli were found in All Weeks (66% > control), followed by Week 2 (44% > control). Week 1 had the lowest Young's moduli (36% < control). (C) Tensile strength for all groups. All Weeks had the highest UTS (126% > control), followed by Week 2 (50% > control). UTS trends appeared to reflect collagen/WW trends. Data are presented as means ± standard deviations. Groups not connected by the same letter are significantly different (p<0.05).