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Creep tests on collagen gels with varying stress. A creep test was conducted by applying a constant stress to the gel and measuring the strain over time, as indicated by the schematic in the Inset. The flow of the matrix, indicated by the slope of the line, was enhanced at higher stresses. This finding can also be explained by the model of force-dependent unbinding of fibers proposed, with higher stresses leading to greater unbinding of fibers in the network and enhanced flow.
