Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Extension-force curves for P5ab molecule in the constant extension ensemble. (a) The average unfolding force fu as a function of the dwell time; here δx = 2 nm. The dash line is the fitting function of fu with respect to the logarithm of δt. (Inset) force hysteresis phenomenon at δt = 105 (in unit τ0). (b) The average stretching-relaxing force-extension curves in thermal equilibrium, where the dwell time 5 × 106. (Inset) a force-extension trace showing hopping.
